WO2022085594A1 - Cover for male connector - Google Patents

Cover for male connector Download PDF

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Publication number
WO2022085594A1
WO2022085594A1 PCT/JP2021/038284 JP2021038284W WO2022085594A1 WO 2022085594 A1 WO2022085594 A1 WO 2022085594A1 JP 2021038284 W JP2021038284 W JP 2021038284W WO 2022085594 A1 WO2022085594 A1 WO 2022085594A1
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WO
WIPO (PCT)
Prior art keywords
cover
male connector
attached
connector
cap
Prior art date
Application number
PCT/JP2021/038284
Other languages
French (fr)
Japanese (ja)
Inventor
豊田耕一郎
平山智教
栗田真明
佐藤喜典
西山寛華
熊崎雅彦
上原康賢
大熊克紀
上原恵
浮田純次
羽生正知
古起玲緒
臼井誠
Original Assignee
株式会社ジェイ・エム・エス
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2021162832A external-priority patent/JP2022068838A/en
Application filed by 株式会社ジェイ・エム・エス filed Critical 株式会社ジェイ・エム・エス
Publication of WO2022085594A1 publication Critical patent/WO2022085594A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J7/00—Devices for administering medicines orally, e.g. spoons; Pill counting devices; Arrangements for time indication or reminder for taking medicine
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/08—Tubes; Storage means specially adapted therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/20—Closure caps or plugs for connectors or open ends of tubes

Definitions

  • the present invention relates to a cover for a male connector that is detachably attached to a male connector.
  • tube feeding As a method of administering a liquid substance containing a nutritional supplement or a drug to a patient who cannot eat a meal by mouth, tube feeding is known in which the liquid substance is directly injected into the digestive tract such as the stomach or intestine via a tube. .. Since the liquid material needs to be administered to the patient on a regular basis, the tube that feeds the liquid material is placed in the patient while being inserted into the patient.
  • a male connector is provided at the upstream end of the tube. When administering the liquid, the male connector is connected to a female connector provided at the downstream end of the tube connected to the container (eg, bag) containing the liquid.
  • the male connector will continue to be indwelled in the patient for a long time together with the tube.
  • the male connector may become the underlay of the patient's face or body, such as when the patient rolls over. If the male connector is made of a rigid material, the patient may feel pain due to the male connector.
  • the male connector can cause pressure ulcers by continuously compressing the patient's skin and soft tissues.
  • Patent Document 1 describes a cover that can be attached to and detached from the male connector. It is stated that the cover may be made of a soft material such as an elastomer or foam. Covering the male connector except when tube feeding can reduce the patient's chances of pain and pressure ulcers, even if the male connector is under the patient. can.
  • Patent Document 1 needs to be removed from the male connector when connecting and disconnecting the female connector to the male connector.
  • the removed cover may be lost. You may also forget to reattach the removed cover to the male connector after tube feeding.
  • the cover of Patent Document 1 is provided with a recess that can accommodate a male connector.
  • the cover is attached to and detached from the male connector by inserting and removing the male connector into the recess along the direction orthogonal to the axis of the male connector (radial direction) with the cap attached to the tip of the male connector.
  • the cover is attached to the male connector, one radial side of the male connector is exposed to the outside world over the entire length of the male connector.
  • the cover has the advantage that the cover can be easily attached to and detached from the male connector. On the other hand, there is a high possibility that the cover will unintentionally separate from the male connector due to external force.
  • the first object of the present invention is to reduce the pain felt by the patient when the male connector is placed under the patient.
  • a second object of the present invention is to make it possible to connect and disconnect a female connector to a male connector with the cover attached to the male connector.
  • a third object of the present invention is a cover that can be attached to and detached from the male connector, and the cover may be unintentionally separated from the male connector when the male connector to which the cover is attached is placed in the patient. It is to reduce.
  • the cover for a male connector of the present invention can be attached to and detached from a connector main body having a cylindrical connector main portion at one end and a base end portion from which a flexible tube is derived at the other end, and the tip of the connector main portion. It can be attached to and detached from a male connector provided with a cap and a band connecting the connector body or the tube and the cap.
  • the cover is made of a material having cushioning properties.
  • the cover includes an accommodating portion capable of accommodating the connector main portion and a connecting portion provided so as to extend along the circumferential direction of the connector main portion when the cover is attached to the male connector.
  • the cover When the cover is attached to the male connector and the cap is not attached to the connector main portion, the cover can expose the tip of the connector main portion toward the outside world in the axial direction of the male connector.
  • the band is arranged on the base end portion side with respect to the connecting portion.
  • the cover of the present invention is made of a material having cushioning properties.
  • the cover can be attached to the male connector so that the connector main portion is accommodated in the accommodating portion of the cover. Therefore, when the male connector to which the cover of the present invention is attached is placed under the patient, the pain felt by the patient is reduced.
  • the tip of the connector main part can be exposed toward the outside in the axial direction of the male connector. Therefore, it is possible to connect and disconnect the female connector to the male connector with the cover of the present invention attached to the male connector.
  • the band is arranged on the base end side with respect to the connecting part. If a cap is attached to the connector main part to place the male connector in the patient, the connecting part is surrounded by the connector body and the band. Therefore, when the male connector to which the cover of the present invention is attached is placed in the patient, it is unlikely that the cover will be unintentionally separated from the male connector.
  • FIG. 1A is an exploded perspective view showing a male connector and a cover according to the first embodiment of the present invention.
  • 1B is a cross-sectional perspective view of FIG. 1A.
  • FIG. 2A is a front view of the cover according to the first embodiment of the present invention as viewed from the front side.
  • 2B is a side view of the cover of FIG. 2A.
  • FIG. 3A is a perspective view showing a state in which the cover according to the first embodiment of the present invention is attached to the male connector and the cap is not attached to the connector main portion.
  • FIG. 3B is a cross-sectional view of FIG. 3A.
  • FIG. 4A is a perspective view of a state in which the cover according to the first embodiment of the present invention is attached to the male connector and the cap is attached to the connector main portion as viewed from the front side.
  • FIG. 4B is a perspective view of the state of FIG. 4A as viewed from the rear side.
  • 4C is a cross-sectional view of FIG. 4A.
  • 4D is a front view of FIG. 4A.
  • FIG. 5A is a perspective view showing a state in which a female connector is connected to a male connector to which a cover according to the first embodiment of the present invention is attached.
  • 5B is a cross-sectional view of FIG. 5A.
  • FIG. 6 is a perspective view of the cover according to the second embodiment of the present invention.
  • FIG. 7A is a cross-sectional perspective view of the cover of FIG.
  • FIG. 7B is a cross-sectional perspective view along another surface of the cover of FIG. 8A is a front view of the cover of FIG. 6 as viewed from the front side.
  • FIG. 8B is a first side view of the cover of FIG.
  • FIG. 8C is a second side view of the cover of FIG.
  • FIG. 9A is a perspective view showing a state in which the cover according to the second embodiment of the present invention is attached to the male connector and the cap is not attached to the connector main portion.
  • 9B is a cross-sectional view of FIG. 9A.
  • 9C is a cross-sectional view taken along another surface of FIG. 9A.
  • FIG. 10A is a perspective view showing a state in which the cover according to the second embodiment of the present invention is attached to the male connector and the cap is attached to the connector main portion.
  • 10B is a cross-sectional view of FIG. 10A.
  • FIG. 11A is a perspective view of the cover according to the third embodiment of the present invention.
  • 11B is a cross-sectional perspective view of the cover of FIG. 11A.
  • FIG. 12A is a perspective view of the cover according to the third embodiment of the present invention as viewed from another direction.
  • 12B is a front view of the cover of FIG. 12A as viewed from the front side.
  • FIG. 13 is a perspective view showing a state in which the cover according to the third embodiment of the present invention is attached to the male connector and the cap is not attached to the connector main portion.
  • FIG. 14A is a perspective view showing a state in which the cover according to the third embodiment of the present invention is attached to the male connector and the cap is attached to the connector main portion.
  • 14B is a cross-sectional view of FIG. 14A.
  • FIG. 15 is a perspective view of the cover according to the fourth embodiment of the present invention.
  • 16A is a perspective view of the cover of FIG. 15 as viewed from another direction.
  • 16B is a front view of the cover of FIG. 15 as viewed from the front side.
  • FIG. 17A is a perspective view showing a modified example of the cover according to the first embodiment of the present invention.
  • 17B is a cross-sectional perspective view of the cover of FIG. 17A.
  • the cover may further include a cover body having a substantially arc shape when viewed along the axis of the cover.
  • the connecting portion may connect the facing end faces of the cover body.
  • the cover body and the connecting portion may form the accommodating portion.
  • the configuration of the cover can be simplified.
  • the "substantial arc shape” includes a curved shape (for example, a part of an ellipse) that cannot be said to be an arc in a strict sense.
  • the band may be derived from the connector body. According to this aspect, when the cover is attached to the male connector and the cap is attached to the connector main portion, the band bends and inevitably straddles the connecting portion.
  • the band when the cover is attached to the male connector and the cap is attached to the connector main portion, the band may extend across the connecting portion to the tip end side of the connector main portion. ..
  • Such an embodiment is advantageous in reducing the possibility that the cover will unintentionally separate from the male connector when the male connector with the cover attached is placed in the patient.
  • the cover may further include a groove having the outer surface of the connecting portion as the bottom surface.
  • the band may be accommodated in the groove.
  • the cover may further include recesses along the radial direction.
  • the recess may engage the band so that the cover does not rotate with respect to the male connector. According to this aspect, if the recess is engaged with the band, then when the cap is attached to the connector main portion, it is not necessary to align the cover about the axis with respect to the male connector.
  • the cap may include a circular sealing plate capable of covering the tip of the connector main portion, and a tab protruding radially outward from the sealing plate.
  • the band may be connected at a position opposite to the tab of the sealing plate.
  • the cover has a third outer dimension along a third direction parallel to the axis of the cover and a first outer dimension along a first direction perpendicular to the third direction. It may have a second outer dimension along the first direction and the second direction perpendicular to the third direction.
  • the cover may have a flat shape in which the first outer dimension is smaller than the second outer dimension and the third outer dimension. According to this aspect, the cover attached to the male connector is likely to face the bedding or the like so that the first direction of the cover is the vertical direction. Therefore, the cover and the male connector can be stably oriented in the desired direction.
  • the base end portion may have a long axis perpendicular to the axis of the male connector.
  • the cover may be attached to the male connector with the second direction of the cover parallel to the long axis of the proximal end.
  • the long axis of the proximal end faces horizontally. This is advantageous in reducing the pain that the proximal site causes to the patient.
  • the connecting portion may extend in parallel with the first direction. According to such an embodiment, when the male connector to which the cover is attached is placed under the patient with the first direction of the cover facing up and down, the band protrudes horizontally. This is advantageous in reducing the pain that the band causes to the patient.
  • the cover may further include a skirt configured to face the base end portion in the radial direction when the cover is attached to the male connector. According to such an embodiment, it is advantageous to reduce the pain caused by the proximal end of the male connector to the patient when the male connector to which the cover is attached is placed under the patient.
  • the cover has a third outer dimension along a third direction parallel to the axis of the cover and a first outer dimension along a first direction perpendicular to the third direction. It may have a second outer dimension along the first direction and the second direction perpendicular to the third direction.
  • the cover may have a flat shape in which the first outer dimension is smaller than the second outer dimension and the third outer dimension.
  • the skirt may include a pair of facing portions that are spaced apart from each other in the first direction and face each other. When the cover is attached to the male connector, the base end portion may be arranged between the pair of facing portions.
  • the facing portions are arranged above and below the base end portion. This is advantageous in reducing the pain that the proximal site causes to the patient.
  • the cover further comprises a collar configured to face the cap radially when the cover is attached to the male connector and the cap is attached to the connector main body. You may. According to such an embodiment, it is advantageous to reduce the pain caused by the cap of the male connector to the patient when the male connector to which the cover is attached is placed under the patient.
  • the cover has a third outer dimension along a third direction parallel to the axis of the cover and a first outer dimension along a first direction perpendicular to the third direction. It may have a second outer dimension along the first direction and the second direction perpendicular to the third direction.
  • the cover may have a flat shape in which the first outer dimension is smaller than the second outer dimension and the third outer dimension.
  • the cover may further comprise an engaging structure that engages a step between the connector main portion and the proximal end portion of the male connector. According to this aspect, the cover moves forward with respect to the male connector (in the direction from the proximal end toward the connector main portion) when the cover is attached to the male connector and the cap is not attached to the connector main portion. It is advantageous to prevent it.
  • the connector body when the cover attached to the male connector is viewed along a direction perpendicular to the surface including the axis of the cover and the connecting portion, the connector body protrudes from the cover. It does not have to be. According to such an embodiment, it is advantageous to reduce the pain caused by the connector body to the patient when the male connector to which the cover is attached is placed under the patient.
  • the cover may be provided with a through hole penetrating the cover so that the connector main portion housed in the housing portion can be seen.
  • the information described on the outer peripheral surface of the connector main portion can be visually recognized through the through hole in a state where the cover is attached to the male connector.
  • the cover may be asymmetric with respect to the axis of the cover when the cover is viewed along a direction perpendicular to the plane including the axis of the cover and the connecting portion.
  • Such an embodiment is advantageous for recognizing the position where the male connector is inserted / removed with respect to the cover.
  • the cover may further include a skirt configured to face the base end portion in the radial direction when the cover is attached to the male connector.
  • the cover is notched so that the outer peripheral edge of the skirt is asymmetric with respect to the axis of the cover when the cover is viewed along a direction perpendicular to the plane including the axis of the cover and the connecting portion. It may be provided.
  • a notch can be utilized to position the male connector with respect to the cover. This is advantageous for improving the wearability of the cover with respect to the male connector.
  • the cover may include a pair of sides facing each other in a direction perpendicular to the axis of the cover.
  • Each of the pair of side surfaces may be a convex curved surface.
  • the pair of side surfaces may be connected via a flat surface.
  • a hole may be provided on the outer surface of the cover. Such an aspect is advantageous for reducing the weight of the cover and adjusting the cushioning property of the cover.
  • the "axis" of a member means the central axis of the member.
  • the "axis” passes through the center of the circle contained in the member and / or coincides with the central axis of the cylinder contained in the member.
  • the direction along the straight line orthogonal to the axis is called the "radial direction”.
  • the side closer to the axis is called the “inner” side
  • the side farther from the axis is called the "outer” side.
  • the direction of rotation around the axis is called the "circumferential direction”.
  • FIG. 1A is a perspective view of the male connector 900 and the cover 1 according to the first embodiment of the present invention immediately before being attached to the male connector 900.
  • 1B is a cross-sectional perspective view of FIG. 1A.
  • the cross section of FIG. 1B includes a coaxially arranged cover 1 and a shaft of the male connector 900 (not shown).
  • an XYZ Cartesian coordinate system as shown is set for each of the cover 1 and the male connector 900.
  • the Z axis is parallel to the axis of the cover 1 and the male connector 900.
  • the Z-axis direction may be simply referred to as "axial direction”.
  • the male connector 900 is used for nasal tube feeding.
  • the male connector 900 has a connector body 901 having a cylindrical connector main portion 910 at one end and a base end portion 920 from which the tube 909 is led out at the other end.
  • the connector main portion 910 has a male member 911 having a hollow tubular shape and an outer cylinder 915 surrounding the male member 911.
  • the outer peripheral surface 912 of the male member 911 is a tapered surface (so-called male tapered surface) whose outer diameter decreases as it approaches the tip of the male member 911.
  • the male member 911 has a tip tapered surface 913 having a taper angle larger than that of the outer peripheral surface 912 on the tip side of the outer peripheral surface 912.
  • the tip of the male member 911 (particularly, the tip tapered surface 913) protrudes in the axial direction from the tip of the outer cylinder 915.
  • the tapered surface 913 protruding from the outer cylinder 915 facilitates the connection of the cap 930 and the female connector 950 (see FIGS. 5A and 5B described later) to the male connector 900.
  • the male member 911 is provided with a flow path 919 that penetrates the male member 911 along its longitudinal direction (Z-axis direction).
  • the outer cylinder 915 has a substantially cylindrical shape, and is arranged coaxially with the male member 911 and radially separated from the male member 911.
  • a female screw 916 is provided on the inner peripheral surface of the outer cylinder 915 facing the male member 911.
  • the base end portion 920 includes a connection cylinder 921 coaxial with the male member 911.
  • the connection cylinder 921 has a hollow cylinder shape and communicates with the male member 911.
  • the base end portion 920 further includes a grip portion 923 provided so as to surround the connection cylinder 921.
  • the grip portion 923 of the present embodiment has a substantially quadrangular prism shape as a whole.
  • the cross-sectional shape of the grip portion 923 along the plane perpendicular to the XY plane is substantially rectangular.
  • the base end portion 920 has a long axis parallel to the long side of the substantially rectangular shape of the grip portion 923. The long axis is parallel to the Y axis.
  • the long axis of the base end portion 920 is in a plane (XY plane) orthogonal to the axis of the male connector 900 (the axis is defined by the central axis of the male member 911, the outer cylinder 915, and the connection cylinder 921). It is an axis along the direction in which the outer dimension of the base end portion 920 is maximized.
  • the direction orthogonal to the major axis and the axis of the male connector 900 (X-axis direction) is referred to as the "thickness direction" of the base end portion 920.
  • the dimensions of the base end portion 920 along the major axis direction (Y-axis direction) are substantially the same as the outer diameter of the outer cylinder 915.
  • the dimension of the base end portion 920 along the thickness direction is smaller than the outer diameter of the outer cylinder 915 and is substantially the same as the outer diameter of the connection cylinder 921.
  • the base end portion 920 (grip portion 923) has a grip surface 924 which is a flat surface parallel to the YZ surface. The operator can grip the base end portion 920 on the grip surface 924 in the thickness direction.
  • the base end 920 having a long axis facilitates the operator to apply a rotational force around the axis to the male connector 900.
  • a flexible hollow tube 909 is derived from the base end portion 920. As shown in FIG. 1B, the tube 909 is inserted into the connecting cylinder 921 and fixed to the connecting cylinder 921 with an adhesive or the like.
  • the flow path 919 of the male member 911 communicates with the tube 909.
  • the tube 909 may be a nasal catheter inserted through the patient's nasal cavity into the stomach or esophagus. Alternatively, the tube 909 may be a tube (extension tube) connected to the nasal catheter.
  • the outer diameter of the tube 909 can be appropriately changed according to the physique of the patient and the like, and is generally about 1 to 5 mm.
  • the male connector 900 further includes a cap 930 and a band 935.
  • the cap 930 includes a substantially disk-shaped sealing plate 931 and a cylindrical sealing cylinder 932 protruding from the sealing plate 931.
  • a tab 933 projects radially outward from the circular outer peripheral edge of the cap 930 (or sealing plate 931).
  • a band 935 extends parallel to the Y axis from a position on the outer peripheral edge of the cap 930 opposite to the tab 933.
  • the band 935 connects the cap 930 to the ring 937 fixed to the connector body 901.
  • the ring 937 is fixed between the connector main portion 910 and the base end portion 920.
  • the ring 937 has an annular shape having substantially the same outer diameter as the outer cylinder 915.
  • the rear end (base end portion 920 side end) of the ring 937 forms a step 905 projecting outward in the radial direction with respect to the grip surface 924 (see FIG. 4B described later).
  • the cap 930 can be repeatedly attached to and detached from the tip of the connector main portion 910. When no nasal tube feeding is performed, the male connector 900 is placed in the patient with the cap 930 attached to the connector main portion 910 (see FIG. 4A described later). The cap 930 can be easily removed from the connector main portion 910 by hooking a finger on the tab 933. The band 935 prevents the cap 930 removed from the connector main portion 910 from being lost.
  • the connector body 901 can be integrally molded as a whole using a hard material.
  • the hard material preferably has mechanical strength (rigidity) to such an extent that it is not substantially deformed by an external force.
  • resin materials such as polypropylene, acrylonitrile-butadiene-styrene copolymer, polycarbonate, polyacetal, polystyrene, polyamide, polyethylene, and hard polyvinyl chloride can be used.
  • the connector main body 901 may be configured by combining a plurality of separately manufactured parts (for example, two parts of an outer cylinder 915 and a portion other than the outer cylinder 915). In this case, the materials constituting the plurality of parts may be the same or different, and each can be selected from the above-mentioned hard materials.
  • the cap 930, the tab 933, the band 935, and the ring 937 can be integrally molded as one part by using a soft material that is easily deformed as compared with the connector main body 901.
  • the soft materials that can be used in these integrated products, including the cap 930 include relatively hard resin materials such as polypropylene and polyethylene, rubber (eg, isoprene rubber, silicone rubber, butyl rubber) or thermoplastic elastomers (eg, for example).
  • a styrene-based elastomer, an olefin-based elastomer, a polyurethane-based elastomer) and other soft materials having rubber elasticity (so-called elastomers) can be used.
  • the configuration of the male connector 900 is merely an example, and in particular, the configuration of the portion that is not directly involved in the connection with the female connector 950 (see FIGS. 5A and 5B described later) can be appropriately changed.
  • the ring 937 is provided at a position between the connector main portion 910 and the base end portion 920, but the position of the ring 937 is not limited to this.
  • the ring 937 may be mounted at an arbitrary position between the tip end (front end) and the rear end (base end portion 920 side end) of the connector main portion 910 (outer cylinder 915). In this case, the connector main portion may be mounted.
  • the rear end of the 910 (outer cylinder 915) constitutes a step 905 that protrudes outward in the radial direction with respect to the grip surface 924.
  • the configuration for connecting the band 935 to the male connector 900 is not limited to the ring 937.
  • the base end of the band 935 may be embedded in the connector main portion 910 by two-color molding or the like. In this case, the ring 937 is unnecessary.
  • the configuration of the cap 930 can also be changed arbitrarily. The cap 930 does not have to include the tab 933.
  • FIG. 2A is a front view of the cover 1 as viewed from the front side
  • FIG. 2B is a side view of the cover 1.
  • the cover 1 has a hollow cylindrical shape as a whole. More specifically, as shown in FIG. 2A, the cover 1 has a cover body 15 having a substantially “C” arcuate shape when viewed along the Z axis, and the cover body 15 in the X-axis direction. It is provided with a connecting portion 11 for connecting two end faces facing each other.
  • the lumen of the cover 1 surrounded by the cover main body 15 and the connecting portion 11 is an accommodating portion 10 capable of accommodating the connector main portion 910.
  • the inner peripheral surface of the accommodating portion 10 is a cylindrical surface, which is composed of a cover main body 15 and a connecting portion 11.
  • the central axis of the cylindrical surface of the accommodating portion 10 is parallel to the Z axis and defines the axis of the cover 1 (not shown).
  • the inner diameter of the cylindrical surface is preferably substantially the same as or smaller than the outer diameter of the connector main portion 910 (or outer cylinder 915). If the inner diameter of the cylindrical surface of the accommodating portion 10 is smaller than the outer diameter of the connector main portion 910, the cover 1 is unlikely to fall off from the male connector 900 when the cover 1 is attached to the male connector 900 (see FIGS. 3A and 3B).
  • the accommodating portion 10 is open toward both sides in the Z-axis direction.
  • the outer peripheral surface 16 of the cover body 15 is a cylindrical surface coaxial with the axis of the cover 1. The thickness of the cover body 15 in the radial direction is substantially constant.
  • the front end surface 17a and the rear end surface 17b see FIG.
  • the Z-axis direction dimension of the cover body 15 is preferably the same as or larger than the Z-axis direction dimension of the connector main portion 910 of the male connector 900. In the first embodiment, Z from the tip of the outer cylinder 915 to the step 905. It is almost the same as the axial dimension.
  • the connecting portion 11 is thinner in the radial direction than the cover main body 15. Therefore, the connecting portion 11 retracts inward in the radial direction from the outer peripheral surface 16 of the cover main body 15, and a groove 12 extending in the Z-axis direction is formed along the connecting portion 11.
  • the outer surface of the connecting portion 11 (the surface facing outward in the radial direction) constitutes the bottom surface of the groove 12.
  • the connecting portion 11 has a smaller dimension in the Z-axis direction than the cover main body 15. Specifically, the connecting portion 11 is retracted from the rear end surface 17b of the cover main body 15 in the Z-axis direction, and a concave portion 18 extending in the radial direction is formed in the rear end surface 17b (see FIG. 4B).
  • the recess 18 is connected to the groove 12. Further, the connecting portion 11 is retracted in the Z-axis direction from the front end surface 17a of the cover main body 15.
  • the Z-axis direction dimension of the connecting portion 11 is preferably the same as or smaller than the length along the Z-axis from the tip of the connector main portion 910 (or the outer cylinder 915) to the band 935. This is because the cap 930 can be easily attached to the tip of the connector main portion 910.
  • the cover 1 is a material having cushioning properties (or elasticity and compressibility) that can be deformed relatively easily by an external force and that immediately restores to the state before deformation (initial state) when the external force is removed (hereinafter referred to as). It consists of "cushioning material").
  • the cushioning material that can be used is not limited, but a foam material (sponge) is preferable, and for example, resin materials such as silicone foam, polyurethane foam, and polyethylene foam can be exemplified. Of these, polyurethane foam is preferable.
  • a thermoplastic elastomer, rubber, soft polyvinyl chloride, polyethylene or the like may be used as the cushioning material.
  • the cover 1 can be integrally manufactured as a whole by using the above materials.
  • a bitter taste component eg, denatonium benzoate
  • the rear end surface 17b of the cover 1 faces the tip of the connector main portion 910 to which the cap 930 is not attached.
  • the cover 1 is arranged coaxially with the male connector 900.
  • the direction of the connecting portion 11 of the cover 1 is aligned with the direction (Y-axis) in which the band 935 extends from the cover main body 15. Then, the connector main portion 910 is inserted into the cover 1.
  • FIG. 3A is a perspective view of the cover 1 attached to the male connector 900.
  • the cap 930 is not attached to the connector body 901. This state is called “cover attached / cap not attached”.
  • FIG. 3B is a cross-sectional view taken along the YZ plane of FIG. 3A.
  • the connector main portion 910 (outer cylinder 915) and the ring 937 are accommodated in the accommodating portion 10 (see FIG. 1A) of the cover 1.
  • the connecting portion 11 extends along the circumferential direction of the connector main portion 910 (outer cylinder 915) and faces the connector main portion 910 (outer cylinder 915) in the radial direction.
  • the tip of the outer cylinder 915 is substantially flush with the front end surface 17a of the cover body 15.
  • the step 905 of the male connector 900 is substantially flush with the rear end surface 17b of the cover body 15 (see FIG. 4B described later).
  • the band 935 of the male connector 900 is located on the base end portion 920 side (rear side) with respect to the connecting portion 11 of the cover 1, is housed in the recess 18, and is axially opposed (or abutted) to the connecting portion 11. )are doing.
  • the axial contact of the band 935 with the connecting portion 11 limits the insertion depth of the male connector 900 (connector main portion 910) with respect to the cover 1.
  • the band 935 extends along the Y axis so as to project outward in the radial direction from the connecting portion 11.
  • the tip of the connector main portion 910 is not covered with the cover 1 and is exposed toward the outside in the axial direction.
  • “the tip of the connector main portion 910 is exposed axially toward the outside world” means that the tip of the male member 911 constituting the connector main portion 910 and the tip of the outer cylinder 915 are exposed toward the outside world ( It means that it is exposed (toward the front) and the flow path 919 of the male member 911 and the gap 918 between the male member 911 and the outer cylinder 915 are opened toward the outside world (toward the front). Therefore, the cap 930 can be attached to the tip of the connector main portion 910 from the state of FIGS. 3A and 3B (the cover is attached and the cap is not attached).
  • FIG. 4A is a perspective view of a state in which the cover 1 is attached to the male connector 900 and the cap 930 is attached to the connector main portion 910 as viewed from the front side. This state is called "cover attached / cap attached state”.
  • FIG. 4B is a perspective view of the state of FIG. 4A as viewed from the rear side.
  • 4C is a cross-sectional view of FIG. 4A, and
  • FIG. 4D is a front view of FIG. 4A.
  • the cover 1 covers the outer peripheral surface of the connector main portion 910 (or outer cylinder 915) of the male connector 900 and the outer peripheral surface of the ring 937.
  • the cap 930 projects forward from the front end surface 17a of the cover 1.
  • the base end portion 920 of the male connector 900 projects rearward from the rear end surface 17b of the cover 1.
  • the sealing cylinder 932 of the cap 930 is inserted into the gap 918 between the male member 911 of the male connector 900 and the outer cylinder 915.
  • the male member 911 is inserted into the sealing cylinder 932, and the inner peripheral surface of the sealing cylinder 932 is in close contact with the outer peripheral surface 912 of the male member 911 in a liquid-tight manner.
  • the cap 930 closes the flow path 919 and the gap 918 of the male connector 900.
  • the sealing plate 931 has substantially the same diameter as the outer diameter of the outer cylinder 915.
  • the tab 933 and the band 935 project radially outward from the sealing plate 931 and the outer cylinder 915.
  • the band 935 is curved and extends across the connecting portion 11 of the cover 1 toward the tip end side of the connector main portion 910.
  • the connecting portion 11 is surrounded by a band 935 and an outer cylinder 915.
  • the tab 933 and the band 935 project from the cap 930 (sealing plate 931) in opposite directions along the Y-axis direction.
  • the tab 933 does not project radially outward from the cover body 15.
  • the band 935 is housed in the groove 12 along the connecting portion 11 of the cover 1, and does not substantially project outward from the cover main body 15 in the radial direction. That is, it is not the tab 933 and the band 935 but the cover 1 (particularly the cover body 15) that protrudes most outward in the radial direction.
  • the cap 930 can be removed from the connector main portion 910 (see FIGS. 3A and 3B). That is, with the cover 1 attached to the male connector 900, the cap 930 can be repeatedly attached (see FIGS. 4A to 4D) and removed (see FIGS. 3A and 3B) to the connector main portion 910. can.
  • the cover 1 can be separated from the male connector 900 by pulling the male connector 900 backward along the Z axis from the cover 1 with the cap 930 separated from the connector main portion 910 (see FIGS. 3A and 3B). 1A and 1B).
  • the cover 1 can be repeatedly attached to and detached from the male connector 900.
  • Cover 1 can be used, for example, as follows.
  • the cover 1 can be attached to the male connector 900 at any time.
  • the cover 1 can be attached to the male connector 900 prior to inserting the tube 909 (see FIG. 1A) into the patient.
  • the cover 1 can be attached to the male connector 900 after the tube 909 has been inserted into the patient, i.e., with the male connector 900 indwelling in the patient with the tube 909.
  • the cover 1 is attached to the male connector 900 with the cap 930 separated from the connector main portion 910 (see FIGS. 1A and 1B) (see FIGS. 3A and 3B).
  • the cap 930 is attached to the connector main portion 910 (see FIGS. 4A to 4D).
  • the cover 1 In this state (cover-mounted / cap-mounted state), the cover 1 is placed in the patient together with the male connector 900 and the tube 909.
  • the male connector 900 and the cover 1 are connected to the patient via a tube 909, but can move freely away from the patient without being fixed to the patient's body surface.
  • FIG. 5A is a cross-sectional view taken along the YZ plane of FIG. 5A.
  • the female connector 950 includes a female member 951 having a hollow tubular shape.
  • the inner peripheral surface 952 of the female member 951 is a female tapered surface whose inner diameter increases as it approaches the tip of the female member 951.
  • a male screw 956 is provided on the outer peripheral surface of the female member 951.
  • the female member 951 is inserted into the gap 918 between the male member 911 and the outer cylinder 915.
  • the male screw 956 of the female member 951 is screwed with the female screw 916 of the outer cylinder 915.
  • the male member 911 is inserted into the female member 951.
  • the outer peripheral surface (male tapered surface) 912 of the male member 951 and the inner peripheral surface (female tapered surface) 952 of the female member 951 are liquid-tightly tapered and fitted.
  • the female connector 950 further includes a connection cylinder 961 coaxial with the female member 951.
  • a pair of grip portions 963 protrudes outward from the connection cylinder 961 in the radial direction.
  • the grip portion 963 like the grip portion 923 of the male connector 900, facilitates the operator to apply a rotational force around the axis of the female connector 950.
  • connection cylinder 961 has a hollow cylinder shape and communicates with the female member 951.
  • a flexible hollow tube 959 is inserted into the connecting cylinder 961 and fixed to the connecting cylinder 961 with an adhesive or the like.
  • the base end (not shown) of the tube 959 is connected to a container (eg, a bag) containing a liquid material.
  • nasal tube feeding can be performed by flowing a liquid substance through a tube 959, a female connector 950, a male connector 900, and a tube 909 in this order and administering the liquid to the patient.
  • the female connector 950 is separated from the male connector 900 (see FIGS. 3A and 3B). Wipe off the liquid matter adhering to the male connector 900.
  • the cap 930 is attached to the connector main portion 910 (see FIGS. 4A to 4D).
  • the male connector 900 is placed in the patient together with the tube 909 in this state (cover attached / cap attached state).
  • the cover 1 is attached to the male connector 900 and the cap 930 is attached to the tip of the connector main portion 910 (cover attached / cap attached state, FIGS. 4A to 4D). See), placed in the patient with the male connector 900.
  • the cover 1 includes an accommodating portion 10 capable of accommodating the connector main portion 910.
  • the connector main portion 910 or the outer cylinder 915
  • the cover 1 further protrudes outward in the radial direction from the connector main portion 910.
  • the cover 1 is made of a cushioning material, it is appropriately deformed depending on the weight of the patient. Cover 1 relieves the local pressure the patient receives from the male connector 900. Therefore, the cover 1 can reduce the pain felt by the patient when the male connector 900 is placed under the patient. Even if the male connector 900 remains under the patient, it is unlikely that the patient will develop a pressure ulcer.
  • both the cap 930 and the female connector 950 are connected to the male connector 900 many times with the cover 1 attached to the male connector 900. And can be separated. In order to perform nasal tube feeding, it is necessary to remove the cap 930 from the connector main part 910 and connect the female connector 950 to the connector main part 910 (male connector 900) instead.
  • the band 935 is arranged on the base end portion 920 side with respect to the connecting portion 11.
  • the connecting portion 11 restricts the cover 1 from moving backward with respect to the male connector 900.
  • the band 935 is curved and extends across the connecting portion 11 toward the tip end side of the connector main portion 910 (see FIG. 4C).
  • the connecting portion 11 is surrounded by the connector main body 901 (particularly the connector main portion 910 thereof) and the band 935.
  • the band 935 restricts the connecting portion 11 (further cover 1) from moving in the Z-axis direction with respect to the male connector 900.
  • the male connector 900 with the cover attached and the cap attached (see FIGS. 4A to 4D) is placed in the patient, it is unlikely that the cover 1 is unintentionally separated from the male connector 900.
  • the male connector 900 is male. It is unlikely that the connector 900 will be misaligned with respect to the cover 1 and eventually the male connector 900 will come out of the cover 1. Therefore, the cover 1 can surely reduce the pain felt by the patient when the male connector 900 is placed under the patient.
  • the connecting portion 11 constitutes a part of the inner peripheral surface that defines the accommodating portion 10. Therefore, the connecting portion 11 has a function of positioning the connector main portion 910 in the cover 1 in the radial direction. Further, the connecting portion 11 also has a function of axially positioning the male connector 900 with respect to the cover 1 by engaging with the band 935 in the cover-mounted / cap-mounted state (see FIGS. 4A to 4D). Since the connecting portion 11 has these two functions in combination, the configuration of the cover 1 is simplified.
  • the band 935 is derived from the position of the connector main body 901 between the connector main portion 910 and the base end portion 920 (see FIGS. 1A and 1B).
  • the band 935 is curved and inevitably straddles the connecting portion 11 (see FIG. 4C). Therefore, the cover 1 is compatible with such a male connector 900.
  • the connecting portion 11 is arranged on the front side (the tip end side of the connector main portion 910) with respect to the band 935 (see FIGS. 3A and 3B).
  • the connector main portion 910 opens the opening (rear end surface) of the cover 1 behind the connecting portion 11. It is inserted and removed from the opening on the 17b side).
  • the cover 1 can be attached to and detached from the male connector 900 while the tube 909 is already connected to the male connector 900 and the tube 909 is inserted into the patient. For example, if the cover 1 becomes dirty, it is possible to replace only the cover 1 with a new one while the male connector 900 and the tube 909 are left in the patient.
  • a groove 12 along the connecting portion 11 is formed on the outer peripheral surface 16 of the cover 1 (see FIG. 1A).
  • the band 935 is curved and accommodated in the groove 12. Therefore, even if the curved band 935 protrudes outward in the radial direction from the cylindrical outer peripheral surface of the connector main portion 910 (or the outer cylinder 915), the band 935 protrudes outward in the radial direction from the cover 1. Can be suppressed. This is advantageous in reducing the pain that the patient feels due to the curved band 935 when the male connector 900 is placed under the patient. Even if the male connector 900 remains under the patient, it is unlikely that the patient will develop a pressure ulcer.
  • the depth of the groove 12 along the radial direction is preferably equal to or greater than the thickness of the band 935 (in FIG. 4C, the dimension along the radial direction of the portion of the band 935 that faces the connecting portion 11 in the radial direction).
  • the band 935 housed in the groove 12 preferably does not project outward in the radial direction from the cover 1, but may slightly project. This is because the band 935 is soft and easily deformable unlike the connector main part 910, so that the pain felt by the patient by the band 935 is smaller than the pain caused by the connector main part 910.
  • the rear end surface 17b of the cover 1 is provided with a recess 18 along the radial direction.
  • the recess 18 is connected to the groove 12, and both are continuous.
  • the band 935 is housed in the recess 18 when the cover is attached and the cap is not attached (see FIGS. 3A and 3B).
  • the recess 18 engages with the band 935 to prevent the cover 1 from rotating about the axis with respect to the male connector 900.
  • the band 935 is engaged with the recess 18 when the cover 1 is attached to the male connector 900 (see FIGS. 3A and 3B)
  • the cover 1 is attached when the cap 930 is attached to the connector main portion 910. There is no need to align around the axis with respect to the male connector 900.
  • the tab 933 of the cap 930 does not protrude outward from the cover 1 in the radial direction. This is advantageous in reducing the pain that the patient feels with the tab 933 when the male connector 900 is placed under the patient. Even if the male connector 900 remains under the patient, it is unlikely that the patient will develop a pressure ulcer.
  • the cap 930 and the base end portion 920 project in the axial direction (Z-axis direction) from the cover 1 (see FIGS. 4A to 4C).
  • the male connector 900 is placed under the patient.
  • the long axis of the male connector 900 is usually oriented horizontally, and the cover 1 is the cap 930. This is because it protrudes outward in the radial direction from the base end portion 920.
  • the first embodiment is merely an example, and the first embodiment can be changed as appropriate.
  • a step in the Z-axis direction is formed between the connecting portion 11 of the cover 1 and the front end surface 17a (see FIG. 1A), but this step is not essential in the present invention.
  • the connecting portion 11 and the front end surface 17a may be along a common plane parallel to the XY plane.
  • the cover 1 does not have to have the recess 18.
  • the connecting portion 11 and the rear end surface 17b may be along a common plane parallel to the XY plane.
  • the Z-axis direction dimension of the connecting portion 11 may be the same as the Z-axis direction dimension of the cover main body 15.
  • the dimensions of the cover body 15 in the Z-axis direction can be changed as appropriate.
  • the Z-axis dimension of the cover body 15 is preferably larger than the Z-axis dimension of the connector main portion 910 (or outer cylinder 915), and the Z-axis from the tip of the outer cylinder 915 to the lower end (or step 905) of the ring 937. It is more preferable that the dimension is equal to or larger than the directional dimension. This is because the connector main part 910 (or outer cylinder 915) made of a relatively hard material is less likely to touch the patient.
  • the connector main portion 910 (or the outer cylinder 915) does not protrude forward from the front end surface 17a of the cover main body 15, and the ring 937 (or the step 905).
  • the connector main portion 910 (or the outer cylinder 915) does not protrude forward from the front end surface 17a of the cover main body 15, and the ring 937 (or the step 905).
  • the cover 1 Preferably does not protrude rearward from the rear end surface 17b of the cover body 15. Even if the cover 1 extends rearward beyond the ring 937 (or step 905) when the cover 1 is attached to the male connector 900 so that the cover 1 covers part or all of the base end 920 in the radial direction. good.
  • the tip of the connector main portion 910 (or the outer cylinder 915) may protrude forward from the front end surface 17a of the cover main body 15.
  • the ring 937 (or the step 905) may protrude rearward from the rear end surface 17b of the cover main body 15.
  • the connector main part 910 (or outer cylinder 915) and / or the ring 937 (or step 905) protrudes axially from the cover body 15, if the protruding length of the portion protruding from the cover body 15 is small, the male This is because when the connector 900 is placed under the patient, it is unlikely that the protruding portion will touch the patient. Also, even if the ring 937, which is made of a relatively soft material, touches the patient, the pain that the patient feels due to the ring 937 is relatively small.
  • the shape of the outer peripheral surface 16 of the cover body 15 as viewed along the Z axis does not have to be circular, and may be substantially elliptical as in the case of the cover body 215 of the second embodiment described later, for example. In this case, it is preferable that the connecting portion 11 is arranged on a substantially elliptical long axis as in the second embodiment.
  • the cover 1 may include a through hole 19 included in the cover 2 of the second embodiment described later.
  • FIG. 6 is a perspective view of the cover 2 according to the second embodiment of the present invention.
  • 7A is a cross-sectional perspective view of the cover 2 along the YZ plane
  • FIG. 7B is a cross-sectional perspective view of the cover 2 along the XZ plane.
  • 8A is a front view of the cover 2 seen from the front side
  • FIG. 8B is a side view of the cover 2 seen along the X axis
  • FIG. 8C is a side view of the cover 2 seen along the Y axis.
  • the cover 2 has a cover main body 215 having a substantially “C” arc shape when viewed along the Z axis, and two end faces of the cover main body 215 facing in the X-axis direction. It is provided with a connecting portion 11 for connecting the above.
  • the lumen of the cover 2 surrounded by the cover main body 215 and the connecting portion 11 is an accommodating portion 10 capable of accommodating the connector main portion 910.
  • the inner peripheral surface of the accommodating portion 10 is a cylindrical surface, which is composed of a cover main body 215 and a connecting portion 11.
  • the central axis of the cylindrical surface of the accommodating portion 10 is parallel to the Z axis and defines the axis of the cover 2 (not shown).
  • a groove 12 extending in the Z-axis direction is formed along the connecting portion 11.
  • the outer surface of the connecting portion 11 (the surface facing outward in the radial direction) constitutes the bottom surface of the groove 12.
  • the cover 2 differs from the cover 1 in shape, as described in detail below.
  • the cover 2 includes a skirt 220 extending rearward from the cover body 215.
  • the cross-sectional shape of the skirt 220 along the XY plane is substantially "U", and the cross-sectional shape of the substantially “U” is the same side as the cover body 215 on the XY plane (the side opposite to the arrow on the Y axis, and the following). It is open toward the "connecting portion 11 side”).
  • the portion of the skirt 220 that is separated from each other and faces each other in the X-axis direction is the facing portion 221.
  • the gap between the pair of facing portions 221 is open toward the connecting portion 11 side and the rear, and communicates with the accommodating portion 10, the groove 12, and the recess 18.
  • the surfaces of the pair of facing portions 221 facing each other are substantially flat surfaces parallel to the YZ plane.
  • the distance between the pair of facing portions 221 along the X-axis direction is substantially the same as the thickness direction dimension of the base end portion 920 (or grip portion 923, see FIG. 1A) of the male connector 900, and the groove 12 and It is the same as the inner dimension of the recess 18 in the X-axis direction, and is smaller than the inner diameter of the cylindrical surface that defines the accommodating portion 10. Therefore, a stepped surface 225 depending on the difference in internal dimensions in the X-axis direction is formed between the accommodating portion 10 and the facing portion 221 (see FIGS. 7A and 7B).
  • the step surface 225 is a flat surface parallel to the XY surface.
  • the cover 2 further includes a pair of collars 230 protruding forward from the cover body 215.
  • the collar 230 is a rib extending along the Y axis.
  • the pair of collars 230 are separated from each other and face each other in the X-axis direction.
  • the gap between the pair of collars 230 is open toward the front and communicates with the accommodating portion 10 and the groove 12.
  • the cover body 215 is formed with a through hole 219 that penetrates the cover body 215 in the X-axis direction.
  • the through hole 219 communicates the accommodating portion 10 with the outside world.
  • the external shape of the cover 2 as a whole is X as compared with the second outer dimension L2 along the Y-axis direction and the third outer dimension L3 along the Z-axis direction.
  • the first outer dimension L1 along the axial direction has a small flat shape (L1 ⁇ L2, L1 ⁇ L3).
  • the two side surfaces 216 facing outward in the X-axis direction are both smooth convex curved surfaces bulging in a dome shape.
  • the two side surfaces 216 are symmetrical with respect to the YZ plane including the axis of the cover 2.
  • the cover 2 can be attached to and detached from the male connector 900 (see FIGS. 1A and 1B) described in the first embodiment.
  • the cover 2 can be attached to and detached from the male connector 900 by inserting and removing the connector main portion 910 of the male connector 900 into the skirt 220 (or between the pair of facing portions 221).
  • the connector main portion 910 when viewed along the X axis, can be inserted and removed diagonally with respect to the axis of the cover 2 on the connecting portion 11 side with respect to the axis of the cover 2.
  • the distance between the pair of facing portions 221 is smaller than the outer diameter of the connector main portion 910 (outer cylinder 915).
  • the skirt 220 is easily deformed so that the distance between the pair of facing portions 221 increases as the connector main portion 910 passes through the skirt 220.
  • FIG. 9A is a perspective view of the cover 2 attached to the male connector 900.
  • the cap 930 is not attached to the connector main portion 910 (with the cover attached and the cap not attached).
  • 9B is a cross-sectional view of FIG. 9A along the YZ plane
  • FIG. 9C is a cross-sectional view of FIG. 9A along the XZ plane.
  • the connector main portion 910 (outer cylinder 915) and the ring 937 are accommodated in the accommodating portion 10 (see FIGS. 7A, 7B, 8A) of the cover 2.
  • the connecting portion 11 faces the connector main portion 910 (outer cylinder 915) in the radial direction.
  • the step 905 see FIG.
  • the connector main portion 910 (outer cylinder 915) is exposed to the outside world through the through hole 219 provided in the cover 2.
  • the band 935 of the male connector 900 is located on the base end portion 920 side (rear side) with respect to the connecting portion 11 of the cover 2, is housed in the recess 18, and is axially opposed (or abutted) to the connecting portion 11. )are doing.
  • the band 935 extends along the Y axis so as to project outward in the radial direction from the connecting portion 11.
  • the base end portion 920 of the male connector 900 is located within the skirt 220 (or between the pair of facing portions 221) and is substantially covered by the skirt 220.
  • the skirt 220 (or the facing portion 221) faces the grip surface 924 (see FIG. 1A) of the base end portion 920 in the X-axis direction.
  • the tube 909 derived from the base end portion 920 is derived from the skirt 220 (or between the pair of facing portions 221) along the Z axis.
  • a pair of collars 230 project forward from the tip of the connector main portion 910 (outer cylinder 915). However, as in the first embodiment, the tip of the connector main portion 910 is not covered with the cover 2 and is exposed toward the outside world (forward) in the axial direction.
  • the connector main body 901 When viewed along the X-axis direction, the connector main body 901 is housed in the cover 2 without protruding from the outer peripheral edge of the cover 2.
  • the cap 930 can be attached to the connector main portion 910 from the state of FIGS. 9A to 9C (the cover is attached and the cap is not attached).
  • FIG. 10A is a perspective view of a state in which the cover 2 is attached to the male connector 900 and the cap 930 is attached to the connector main portion 910 (cover attached / cap attached state).
  • FIG. 10B is a cross-sectional view taken along the YZ plane of FIG. 10A.
  • the band 935 is housed in the groove 12 along the connecting portion 11 of the cover 2, and while bending, straddles the connecting portion 11 of the cover 2 and moves toward the tip end side of the connector main portion 910. It is extended.
  • the connecting portion 11 is surrounded by a band 935 and an outer cylinder 915.
  • the largest radial outward protrusion is the cover 2, not the tab 933 and band 935.
  • the male connector 900 does not protrude from the outer peripheral edge of the cover 2, except for a part of the cap 930.
  • the cap 930 can be removed from the connector main portion 910 (see FIGS. 9A to 9C). That is, with the cover 2 attached to the male connector 900, the cap 930 can be repeatedly attached (see FIGS. 10A and 10B) and removed (see FIGS. 9A to 9C) to the connector main portion 910. can. If the male connector 900 is pulled out from the skirt 220 (or between the pair of facing portions 221) with the cap 930 separated from the connector main portion 910 (see FIGS. 9A to 9C), the cover 2 can be separated from the male connector 900. can. The cover 2 can be repeatedly attached to and detached from the male connector 900.
  • the cover 2 can be used in the same manner as the cover 1 of the first embodiment.
  • the cover 2 is placed in the patient with the cover 2 attached to the male connector 900 and the cap 930 attached to the connector main portion 910 (cover attached / cap attached state, see FIGS. 10A and 10B).
  • the cap 930 is separated from the connector main part 910 (see FIGS. 9A-9C).
  • a female connector 950 see FIGS. 5A and 5B
  • the female connector 950 is separated from the male connector 900 (see FIGS. 9A-9C) and a cap 930 is instead attached to the connector main 910 (see FIGS. 10A and 10B).
  • the male connector 900 is placed in the patient together with the tube 909 in this state (cover attached / cap attached state).
  • the cover 2 of the second embodiment includes a skirt 220 extending rearward from the cover main body 215 constituting the accommodating portion 10.
  • the male connector 900 is inserted into and removed from the cover 2 via the skirt 220 (or between the pair of facing portions 221). More specifically, the male connector 900 is inserted into the skirt 220 in the order of the connector main portion 910 and the proximal end portion 920. After that, the male connector 900 is pulled out from the skirt 220 in the order of the base end portion 920 and the connector main portion 910.
  • the skirt 220 faces the base end portion 920 in the radial direction. Therefore, when the male connector 900 to which the cover 2 is attached is placed under the patient, the possibility that the proximal end portion 920 touches the patient is further lower than that in the first embodiment.
  • the skirt 220 is advantageous in reducing the pain that the proximal end 920 inflicts on the patient when the male connector 900 to which the cover 2 is attached is placed under the patient.
  • the cover 2 further includes a pair of collars 230 extending forward from the cover body 215.
  • the pair of collars 230 In the cover-mounted / cap-mounted state (see FIGS. 10A and 10B), the pair of collars 230 have the cap 930 sandwiched between them and face the cap 930 in the radial direction. Therefore, when the male connector 900 to which the cover 2 is attached is placed under the patient, the possibility that the cap 930 touches the patient is further lower than that of the first embodiment.
  • the collar 230 is advantageous in reducing the pain that the cap 930 inflicts on the patient when the male connector 900 to which the cover 2 is attached is placed under the patient.
  • the cover 2 of the second embodiment includes the skirt 220 and the collar 230 in addition to the cover main body 215. Therefore, the cover 2 can further reduce the pain felt by the patient when the male connector 900 is placed under the patient. Even if the male connector 900 remains under the patient, the patient is less likely to develop a pressure ulcer.
  • the distance between the pair of collars 230 increases toward the front. Therefore, the operator can easily access the cap 930 (sealing plate 931) and the tab 933 in the cover-mounted / cap-mounted state (see FIGS. 10A and 10B). The work of removing the cap 930 from the connector main portion 910 is easy.
  • the band 935 is arranged on the base end portion 920 side with respect to the connecting portion 11. After that, when the cap 930 is attached to the tip of the connector main portion 910, the band 935 is curved and extends across the connecting portion 11 toward the tip end side of the connector main portion 910 (see FIG. 10B).
  • the connecting portion 11 is surrounded by the connector main body 901 (particularly the connector main portion 910 thereof) and the band 935.
  • the cover 2 is provided with a stepped surface 225 (engagement structure) between the accommodating portion 10 and the skirt 220 (or its facing portion 221).
  • the step surface 225 engages with the step 905 of the male connector 900 in the Z-axis direction.
  • the step 905 functions to prevent the cover 2 from moving forward with respect to the male connector 900 when the cover is attached and the cap is not attached (see FIGS. 9A to 9C). Therefore, for example, when the cap 930 is separated from the connector main portion 910 for nasal tube feeding, it is possible to prevent the cover 2 from being unintentionally dropped from the male connector 900. Further, it is possible to prevent the cover 2 from moving to the female connector 950 side in a state where the female connector 950 is connected to the male connector 900 and nasal tube feeding is performed.
  • the stepped surface 225 is formed depending on the difference in internal dimensions in the X-axis direction between the accommodating portion 10 and the skirt 220.
  • the stepped surface 225 functions as an engaging structure with which the male connector 900 is engaged. Therefore, it is not necessary to provide a special engagement structure. This is advantageous for simplifying the structure of the cover 2.
  • the cover 2 has a flat shape in which the first outer dimension L1 along the X-axis direction is smaller than the second outer dimension L2 along the Y-axis direction and the third outer dimension L3 along the Z-axis direction (FIG. 8A to 8C). Therefore, in the cover-mounted / cap-mounted state (see FIGS. 10A and 10B), the cover 2 (see FIGS. 10A and 10B) is placed on the bedding or the like in the X-axis direction of the cover 2 having a relatively small outer dimension. Is likely to face up and down.
  • the cover 2 is attached to the male connector 900 so that the Y-axis of the cover 2 is parallel to the long axis of the base end portion 920 (that is, the Y-axis of the male connector 900). Therefore, when the X-axis of the cover 2 faces in the vertical direction on the bedding or the like, the long axis of the base end portion 920 (grip portion 923) becomes parallel to the horizontal direction. This reduces the pain that the base end 920 of the male connector 900 under the patient gives to the patient as compared to the case where the long axis of the base end 920 (grip portion 923) is parallel to the vertical direction. It is advantageous to.
  • the skirt 220 of the cover 2 includes a pair of facing portions 221 facing each other in the X-axis direction.
  • the base end portion 920 is arranged between the pair of facing portions 221. Therefore, when the X-axis of the cover 2 faces in the vertical direction on the bedding or the like, the facing portions 221 are arranged vertically with respect to the base end portion 920. This is advantageous in reducing the pain that the proximal end 920 inflicts on the patient when the male connector 900 to which the cover 2 is attached is placed under the patient.
  • the cover 2 includes a pair of collars 230 facing each other in the X-axis direction.
  • the cap 930 is arranged between the pair of collars 230. Therefore, when the X-axis of the cover 2 faces in the vertical direction on the bedding or the like, the collar 230 is arranged vertically with respect to the cap 930. This is advantageous in reducing the pain that the cap 930 inflicts on the patient when the male connector 900 to which the cover 2 is attached is placed under the patient.
  • the connecting portion 11 extends in the X-axis direction and connects the end faces of the cover main body 215 facing the X-axis direction (see FIG. 8A). Therefore, when the male connector 900 (see FIGS. 10A and 10B) with the cover attached and the cap attached is placed under the patient with the X-axis of the cover 2 facing in the vertical direction, the band 935 protrudes in the horizontal direction. .. This is advantageous in reducing the pain that the band 935 inflicts on the patient as compared to the case where the band 935 projects vertically. Similarly, the tab 933 provided on the sealing plate 931 also projects horizontally. This is advantageous in reducing the pain that the tab 933 inflicts on the patient.
  • the connector body 901 does not protrude from the outer peripheral edge of the cover 2 (see FIG. 10B). Therefore, when the male connector 900 (see FIGS. 10A and 10B) with the cover attached and the cap attached is placed under the patient with the X-axis direction of the cover 2 facing up and down, the rigid connector body 901 becomes the patient. The possibility of touching is further reduced. This is advantageous in reducing the pain that the connector body 901 inflicts on the patient when the male connector 900 is placed under the patient.
  • the male connector 900 (particularly the connector main portion 910) housed in the lumen 10 can be visually recognized through the through hole 19 (see FIGS. 9A, 9C, and 10A).
  • Information regarding the dimensions of the male connector 900 or the tube 909 may be described on the outer peripheral surface of the connector main portion 910 (outer cylinder 915). In such a case, the information can be visually recognized through the through hole 19 with the cover 2 attached to the male connector 900.
  • the number of through holes 19 does not have to be two, but may be one. In the present invention, the through hole 19 may be omitted.
  • the second embodiment is merely an example, and the second embodiment can be changed as appropriate.
  • the cover 2 attached to the male connector 900 when the cover 2 attached to the male connector 900 is viewed along the X axis, a part of the base end portion may protrude from the outer peripheral edge of the skirt 220.
  • the male connector 900 see FIGS. 10A and 10B
  • the cap 930 may not be visible due to the collar 230.
  • the engagement structure of the cover 2 that can be engaged with the male connector 900 is not limited to the step surface 225 (see FIGS. 6B and 6C) that engages with the step 905 (see FIG. 1A) of the male connector 900.
  • the engagement structure may engage with the rear end of the base end portion 920 (particularly its grip portion 923) of the male connector 900 in the Z-axis direction.
  • the cover does not have to have an engaging structure (step surface 225).
  • a cylindrical surface continuous with the accommodating portion 10 may be formed in the skirt 220.
  • the cover 2 does not have to have either the skirt 220 or the collar 230.
  • the cover 2 does not have the collar 230, when the male connector 900 with the cover attached and the cap not attached is viewed along the X-axis and / or the Y-axis, a part of the connector main part is not covered with the cover. , May be exposed towards the outside world.
  • the external shape of the cover 2 can be changed arbitrarily.
  • the external shape of the cover is not limited to a flat shape in which the first outer dimension L1 along the X-axis direction is relatively small.
  • the first outer dimension L1 along the X-axis direction and the second outer dimension L2 along the Y-axis direction may be substantially the same.
  • the external shape of the cover 2 may be a cylinder, a polygonal column (for example, a square column, a hexagonal column), a cube, a sphere, a rugby ball shape, or the like.
  • a cover having such a shape does not always face up and down in the X-axis direction on bedding or the like.
  • by increasing the radial dimension (thickness) of the cover it is possible to reduce the pain felt by the patient when the connector 900 is placed under the patient, regardless of the orientation of the cover.
  • the shape seen along the X axis of the cover 2 may also be oval (or oval), rectangular, rhombic, hexagonal, octagonal, track and field track shape, or the like.
  • the major axis direction of the connector 900 is the axial direction thereof, it is preferable that the cover 2 has a major axis in the axial direction (Z axis direction).
  • the collar 230 may extend further forward so that the collar 230 faces the female connector 950 in the radial direction.
  • the collar 230 may be continuous in a substantially "U” shape (or a substantially “C” shape) along the front end surface 17a of the cover body 215.
  • the gap between the pair of collars 230 may be constant in the axial direction or may be smaller toward the front.
  • the collar 230 may be curved towards its tip towards the axis of the cover.
  • a part or all of the connector main portion 910 may be covered with the collar 230.
  • the collar 230 can be deformed outward in the radial direction to expose the tip of the connector main portion 910 axially toward the outside world. Therefore, similarly to the second embodiment, the cap 300 and the female connector 950 can be connected to and separated from the male connector 900 with the cover attached to the male connector 900.
  • the second embodiment is the same as the first embodiment except for the above.
  • the description of the first embodiment also applies to the second embodiment.
  • FIG. 11A is a perspective view of the cover 3 according to the third embodiment of the present invention.
  • FIG. 11B is a cross-sectional perspective view of the cover 3 along the YZ plane.
  • FIG. 12A is a perspective view of the cover as viewed from another direction.
  • FIG. 12B is a front view seen from the front side of the cover 3.
  • FIG. 13 is a perspective view of the cover 3 attached to the male connector 900.
  • the cap 930 is not attached to the connector main portion 910 (with the cover attached and the cap not attached).
  • FIG. 14A is a perspective view showing a state in which the cover 3 is attached to the male connector 900 and the cap 930 is attached to the connector main portion 910 (cover attached / cap attached state).
  • 14B is a cross-sectional view taken along the YZ plane of FIG. 14A.
  • the skirt 220 of the cover 3 is provided with a notch 323.
  • the notch 323 forms a concave curve on the outer peripheral edge of the facing portion 221 when viewed along the X-axis (see FIG. 14B).
  • the notch 323 is on the connecting portion 11 side with respect to the axis of the cover 3 (which coincides with the axis of the cylindrical accommodating portion 10) when viewed along the X axis, and is behind the connecting portion 11. Is located in.
  • the distance from the outer peripheral edge of the facing portion 221 to the accommodating portion 10 is almost the minimum at the position of the notch 323.
  • the cover 3 can be attached to and detached from the male connector 900 (see FIGS. 1A and 1B) described in the first embodiment, similarly to the cover 2 of the second embodiment. Detachment is performed by inserting and removing the male connector 900 (particularly the connector main portion 910) into the skirt 220 (or between the pair of facing portions 221).
  • the cover 2 of embodiment 2 described above was symmetrical with respect to the axis of the cover 2 (which is defined by the central axis of the accommodating portion 10 having a cylindrical shape) when viewed along the X axis (as defined by the central axis of the accommodating portion 10 having a cylindrical shape). See FIG. 8B). Therefore, it is unclear on which side of the cover 2 (the right side or the left side of FIG. 8B) the connecting portion 11 is located just by looking along the X axis. It is necessary to rotate the cover 2 slightly around the axis to check the connecting portion 11.
  • the cover 3 of the present embodiment 3 is asymmetric with respect to the axis of the cover 3 when viewed along the X axis.
  • the connecting portion 11 is arranged on the same side as the notch 323 with respect to the axis of the cover 3. Therefore, when inserting the male connector 900 into the cover 3, for example, the male connector 900 may be held by the right hand, the cover 3 may be held by the left hand, and the notch 323 may be held so as to face the male connector 900 side (right side).
  • the cover 3 When pulling out the male connector 900 from the cover 3, for example, the cover 3 may be held with the left hand, the notch 323 may be held toward the right side, and the base end portion 920 may be grasped through the notch 323 with the right hand. In this way, the notch 323 makes it possible to recognize the position where the male connector 900 is inserted / removed with respect to the cover 3 only by looking at the cover 3 along the X axis.
  • the connector main portion 910 When the male connector 900 is inserted into the cover 3, the connector main portion 910 can be pressed against the concave curve of the outer peripheral edge of the facing portion 221 formed by the notch 323.
  • the connector main portion 910 having a diameter larger than the distance between the pair of facing portions 221 can be positioned on the facing portion 221 without slipping along the outer peripheral edge of the facing portion 221. Therefore, the mountability of the cover 3 to the male connector 900 is improved.
  • the connector main portion 910 when the cover 3 is attached to the male connector 900, if the connector main portion 910 is inserted into the cover 3 from the position of the notch 323, the connector main portion 910 can be reached to the accommodating portion 10 in the shortest distance. Similarly, when the cover 3 is separated from the male connector 900, the connector main portion 910 can be pulled out from the accommodating portion 10 at the shortest distance by moving the connector main portion 910 toward the notch 323. In this way, by using the notch 323 as a mark when the cover 3 is attached to and detached from the male connector 900, the distance through which the connector main portion 910 having a larger diameter passes between the pair of facing portions 221 can be increased. It gets shorter. Therefore, the detachability of the cover 3 with respect to the male connector 900 is improved.
  • the cover 3 is provided with a flat surface 327 on its outer surface.
  • the flat surface 327 is provided at a position opposite to the connecting portion 11 (or the groove 12) in the Y-axis direction.
  • the flat surface 327 is a plane parallel to the XZ surface.
  • the pair of side surfaces 216, each of which is a convex curved surface, are connected via a flat surface 327.
  • the flat surface 327 is advantageous for facilitating the manufacture of the cover 3 when the cover 3 is molded by using a mold. The reason is as follows.
  • the cover of the present invention can be manufactured by injection molding a resin material in a mold.
  • the mold is composed of a combination of a plurality of mold pieces. In this case, the position of the mold pieces may shift or a gap may occur between adjacent mold pieces. These can cause burrs on the molded cover.
  • the mold can be designed so that the butt surface (generally referred to as a parting surface) of adjacent mold pieces is arranged on the flat surface 327. This facilitates the manufacture of the mold in which the above-mentioned misalignment and gaps are unlikely to occur, and it is possible to suppress the generation of burrs on the cover.
  • the flat surface 327 of the third embodiment is parallel to the XZ surface, but is not limited thereto.
  • the flat surface 327 is preferably parallel to the dividing direction of the mold for forming the cover 3 (for example, the X-axis direction, that is, the extending direction of the connecting portion 11).
  • the cover 3 may include the through hole 19 that the cover 2 of the second embodiment has.
  • the third embodiment is the same as the first and second embodiments except for the above.
  • the description of the first and second embodiments also applies to the third embodiment.
  • FIG. 15 is a perspective view of the cover 4 according to the fourth embodiment of the present invention.
  • FIG. 16A is a perspective view of the cover 4 as viewed from another direction.
  • FIG. 16B is a front view seen from the front side of the cover 4.
  • the cover 4 of the present embodiment 4 is different from the cover 3 of the third embodiment in its appearance shape.
  • FIG. 16A shows the cover 3, in the cover 4, the X-axis direction dimension of the flat surface 427 (corresponding to the flat surface 327 of the cover 3) is reduced.
  • a pair of side surfaces 216 which are convex curved surfaces, extend to the opposite side of the connecting portion 11 (or groove 12) and are connected to a thin flat surface 427. Therefore, as can be seen by comparing FIG. 16B with FIGS. 8A and 12B, the outer surface of the cover 4 on the opposite side of the connecting portion 11 (or groove 12) is substantially smooth with no sharp corners. It is a convex curved surface.
  • the cover 4 is advantageous for reducing the pain felt by the patient when the male connector 900 to which the cover 4 is attached is placed under the patient.
  • the cover 4 may include the through hole 19 that the cover 2 of the second embodiment has.
  • the present embodiment 4 is the same as the third embodiment except for the above.
  • the description of the third embodiment and the description of the first and second embodiments applied to the third embodiment also apply to the fourth embodiment.
  • the number of connecting portions 11 provided on the cover is not limited to one.
  • the cover may have two connecting portions 11 arranged symmetrically with respect to its axis.
  • the cover may be rotationally symmetric twice with respect to the axis (a shape that matches the shape before rotation when rotated 180 degrees around the axis).
  • the cover includes a plurality of connecting portions 11, when the cover is attached to the male connector 900, the alignment of the cover around the axis with respect to the male connector 900 is simplified.
  • the outer surface of the cover of the present invention may be provided with a hole (second hole) in addition to the through hole (first hole) 19 (see FIGS. 6, 7A and 7B) of the second embodiment.
  • 17A and 17B show a cover 1'in which a large number of holes 119 are provided on the outer surface of the cover 1 of the first embodiment.
  • the hole 119 penetrates the cover 1'(especially the cover body 15) along the Z-axis direction.
  • the holes 119 each have a regular hexagonal plan view shape and are arranged in a honeycomb shape on the cover main body 15.
  • the holes that can be provided on the outer surface of the cover of the present invention are not limited to the holes 119.
  • the hole 119 is a through hole penetrating the cover 1', but the hole that can be provided in the cover of the present invention may be a non-through hole (so-called blind hole) that does not penetrate the cover. ..
  • the depth of the non-through hole is arbitrary, and the depth of the hole may be deeper or shallower than the opening diameter of the hole.
  • the plan view shape of the hole is not limited to a regular hexagon, and may be, for example, a circle or an arbitrary polygon (quadrangle, octagon, etc.).
  • the arrangement of the holes is not limited to the honeycomb arrangement.
  • the hole may be provided on the outer surface (for example, the connecting portion 11) of the cover other than the cover main body 15.
  • the holes may be provided on the outer surface of the cover (for example, the outer peripheral surface 16 of the cover 1 in FIG. 1A) other than the end surface (17a or 17b) substantially perpendicular to the Z axis.
  • the hole may extend along any direction other than the Z-axis direction (eg, radial direction).
  • the number of holes is arbitrary.
  • the plurality of holes need not be evenly distributed on the cover, but may be arranged only in a specific area of the cover. Providing such a hole on the outer surface of the cover is advantageous for reducing the weight of the cover and adjusting the cushioning property of the cover without substantially changing the outer dimensions and the external shape of the cover.
  • the same holes as described above may be provided on the outer surface of the covers 2 to 4 of the embodiments 2 to 4.
  • the configuration of the male connector 900 to which the cover is attached is not limited to the above embodiment.
  • the cover may be changed as appropriate depending on the male connector.
  • the tab 933 may protrude from the sealing plate 931 along the axis of the cap 930 instead of protruding from the sealing plate 931 in the radial direction.
  • the cap 930 may not be provided with a tab 933.
  • the sealing plate 931 of the cap 930 may have an outer diameter larger than the outer diameter of the outer cylinder 915.
  • a sealing protrusion may be provided on the cap 930.
  • the cap 930 may or may not be further provided with the sealing cylinder 932.
  • the band 935 does not have to be derived from the connector body 901.
  • a ring (annular body) similar to the ring 937 may be provided at the base end of the band 935, and the tube 909 may be inserted into the ring. In this case, the ring may or may not move freely along the longitudinal direction of the tube 909.
  • the grip portion 923 does not have to have a substantially quadrangular prism shape, and may be, for example, a pair of thin plates extending in opposite directions along the long axis direction (Y axis direction) from the cylindrical connection cylinder 921. good. Alternatively, the grip portion 923 may have a cylindrical shape surrounding the connection cylinder 921.
  • the base end portion 920 may be composed of only a cylindrical connection cylinder 921 without providing a grip portion 923.
  • the entire connector body 901 does not have to be made of a rigid material. For example, a portion that is not directly involved in the connection with the female connector 950 (for example, the base end portion 920) may be made of a soft material that is relatively easily deformed.
  • the cover of the above embodiment is attached to and detached from the male connector 900 used for nasal tube feeding, but the present invention is not limited thereto.
  • the male connector to which the cover of the present invention is applied may be any male connector provided on the tube indwelled in the patient.
  • the male connector may be, for example, a male connector provided in a tube used for tube feeding other than a nasal tube.
  • it may be a male connector provided at the upstream end of a tube (extension tube) connected to the tube indwelled in the patient.
  • the covers of the present invention may be applied to male connectors that are not placed in the patient.
  • the present invention can be widely used in the medical field. Above all, the present invention can be used as a cover that is detachably attached to a male connector provided at the upstream end of a tube placed in a patient.

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Abstract

This cover (1) can be removably attached to a male connector (900) comprising: a connector main body (910) that has a connector main part (910) and a base end part (920); a cap (930) that is removably attachable to the connector main part; and a band (935) that connects the connector main body or a tube (909) with the cap. The cover (1) is composed of a cushioning material. The cover comprises: an accommodation part (10) that can accommodate the connector main part; and a linking part (11) that extends along the circumferential direction of the connector main part of the male connector. When the cover is mounted on the male connector and the cap is not mounted on the connector main part, a tip end of the connector main part can be exposed to the external environment, and the band is disposed on a base end part side with respect to the linking part.

Description

オスコネクタ用カバーCover for male connector
　本発明は、オスコネクタに着脱可能に装着されるオスコネクタ用カバーに関する。 The present invention relates to a cover for a male connector that is detachably attached to a male connector.
　食事を口から摂れなくなった患者に栄養剤や薬剤等を含む液状物を投与する方法として、チューブを介して胃や腸などの消化管に直接液状物を注入する経管栄養が知られている。液状物は定期的に患者に投与する必要があるため、液状物を送るチューブは患者に挿入された状態で患者に留置される。チューブの上流側端にはオスコネクタが設けられている。液状物を投与する際に、オスコネクタは、液状物を貯留した容器（例えばバッグ）に接続されたチューブの下流側端に設けられたメスコネクタに接続される。 As a method of administering a liquid substance containing a nutritional supplement or a drug to a patient who cannot eat a meal by mouth, tube feeding is known in which the liquid substance is directly injected into the digestive tract such as the stomach or intestine via a tube. .. Since the liquid material needs to be administered to the patient on a regular basis, the tube that feeds the liquid material is placed in the patient while being inserted into the patient. A male connector is provided at the upstream end of the tube. When administering the liquid, the male connector is connected to a female connector provided at the downstream end of the tube connected to the container (eg, bag) containing the liquid.
　オスコネクタは、チューブとともに患者に長期間留置され続ける。患者が寝返りを打った際などに、オスコネクタが患者の顔や体の下敷きになることがある。オスコネクタが硬質材料からなる場合、患者は、オスコネクタによって痛みを感じる可能性がある。更には、オスコネクタが患者の皮膚や軟部組織を持続的に圧迫することによって褥瘡を発生させる可能性がある。 The male connector will continue to be indwelled in the patient for a long time together with the tube. The male connector may become the underlay of the patient's face or body, such as when the patient rolls over. If the male connector is made of a rigid material, the patient may feel pain due to the male connector. In addition, the male connector can cause pressure ulcers by continuously compressing the patient's skin and soft tissues.
　特許文献１には、オスコネクタに着脱可能なカバーが記載されている。カバーは、エラストマーや発泡体などの軟質材料で構成されてもよいと記載されている。経管栄養を行うときを除いてオスコネクタにカバーを装着すれば、オスコネクタが患者の下敷きになったとしても、患者が痛みを感じたり、褥瘡が発生したりする可能性を低減することができる。 Patent Document 1 describes a cover that can be attached to and detached from the male connector. It is stated that the cover may be made of a soft material such as an elastomer or foam. Covering the male connector except when tube feeding can reduce the patient's chances of pain and pressure ulcers, even if the male connector is under the patient. can.
特開２０１８－０２９７５３号公報Japanese Unexamined Patent Publication No. 2018-029753
　特許文献１のカバーは、オスコネクタに対してメスコネクタを接続及び分離する際に、オスコネクタから取り外す必要がある。取り外したカバーは、紛失する可能性がある。また、経管栄養を終了後、取り外したカバーをオスコネクタに再装着するのを忘れる可能性がある。 The cover of Patent Document 1 needs to be removed from the male connector when connecting and disconnecting the female connector to the male connector. The removed cover may be lost. You may also forget to reattach the removed cover to the male connector after tube feeding.
　特許文献１のカバーは、オスコネクタを収容することができる凹部を備えている。オスコネクタに対するカバーの着脱は、オスコネクタの先端にキャップを装着した状態で、オスコネクタの軸に直交する方向（半径方向）に沿ってオスコネクタを凹部に対して挿抜することにより行う。オスコネクタにカバーを装着したとき、オスコネクタの半径方向の一側面が、オスコネクタの全長にわたって外界に露出される。カバーは、オスコネクタに対するカバーの着脱が容易であるという利点を有する。その一方で、外力によってカバーがオスコネクタから意図せずに分離してしまう可能性が高い。 The cover of Patent Document 1 is provided with a recess that can accommodate a male connector. The cover is attached to and detached from the male connector by inserting and removing the male connector into the recess along the direction orthogonal to the axis of the male connector (radial direction) with the cap attached to the tip of the male connector. When the cover is attached to the male connector, one radial side of the male connector is exposed to the outside world over the entire length of the male connector. The cover has the advantage that the cover can be easily attached to and detached from the male connector. On the other hand, there is a high possibility that the cover will unintentionally separate from the male connector due to external force.
　本発明の第１の目的は、オスコネクタが患者の下敷きになった場合に患者が感じる痛みを低減することにある。本発明の第２の目的は、カバーをオスコネクタに装着した状態で、オスコネクタに対してメスコネクタを接続及び分離することを可能にすることにある。本発明の第３の目的は、オスコネクタに対して着脱可能なカバーであって、カバーが装着されたオスコネクタを患者に留置したときにカバーがオスコネクタから意図せずに分離する可能性を低減することにある。 The first object of the present invention is to reduce the pain felt by the patient when the male connector is placed under the patient. A second object of the present invention is to make it possible to connect and disconnect a female connector to a male connector with the cover attached to the male connector. A third object of the present invention is a cover that can be attached to and detached from the male connector, and the cover may be unintentionally separated from the male connector when the male connector to which the cover is attached is placed in the patient. It is to reduce.
　本発明のオスコネクタ用カバーは、一端に円筒形状のコネクタ主部を有し、他端に柔軟なチューブが導出された基端部を有するコネクタ本体と、前記コネクタ主部の先端に着脱可能なキャップと、前記コネクタ本体又は前記チューブとキャップとをつなぐバンドとを備えたオスコネクタに着脱することができる。前記カバーは、クッション性を有する材料からなる。前記カバーは、前記コネクタ主部を収容可能な収容部と、前記カバーを前記オスコネクタに装着したとき前記コネクタ主部の周方向に沿って延びるように設けられた連結部とを備える。前記カバーを前記オスコネクタに装着し且つ前記キャップを前記コネクタ主部に装着していないとき、前記カバーは前記コネクタ主部の先端を前記オスコネクタの軸方向に外界に向かって露出させることができ、且つ、前記バンドは前記連結部に対して前記基端部側に配置される。 The cover for a male connector of the present invention can be attached to and detached from a connector main body having a cylindrical connector main portion at one end and a base end portion from which a flexible tube is derived at the other end, and the tip of the connector main portion. It can be attached to and detached from a male connector provided with a cap and a band connecting the connector body or the tube and the cap. The cover is made of a material having cushioning properties. The cover includes an accommodating portion capable of accommodating the connector main portion and a connecting portion provided so as to extend along the circumferential direction of the connector main portion when the cover is attached to the male connector. When the cover is attached to the male connector and the cap is not attached to the connector main portion, the cover can expose the tip of the connector main portion toward the outside world in the axial direction of the male connector. Moreover, the band is arranged on the base end portion side with respect to the connecting portion.
　本発明のカバーは、クッション性を有する材料からなる。カバーの収容部にコネクタ主部が収容されるようにカバーをオスコネクタに装着することができる。従って、本発明のカバーが装着されたオスコネクタが患者の下敷きになった場合に、患者が感じる痛みが低減される。 The cover of the present invention is made of a material having cushioning properties. The cover can be attached to the male connector so that the connector main portion is accommodated in the accommodating portion of the cover. Therefore, when the male connector to which the cover of the present invention is attached is placed under the patient, the pain felt by the patient is reduced.
　カバーをオスコネクタに装着し且つキャップをコネクタ主部に装着していないとき、コネクタ主部の先端をオスコネクタの軸方向に外界に向かって露出させることができる。従って、本発明のカバーをオスコネクタに装着した状態で、オスコネクタに対してメスコネクタを接続及び分離することが可能である。 When the cover is attached to the male connector and the cap is not attached to the connector main part, the tip of the connector main part can be exposed toward the outside in the axial direction of the male connector. Therefore, it is possible to connect and disconnect the female connector to the male connector with the cover of the present invention attached to the male connector.
　カバーをオスコネクタに装着し且つキャップをコネクタ主部に装着していないとき、バンドは連結部に対して基端部側に配置される。オスコネクタを患者に留置するためにキャップをコネクタ主部に装着すれば、連結部は、コネクタ本体とバンドとによって取り囲まれる。従って、本発明のカバーが装着されたオスコネクタを患者に留置したとき、カバーがオスコネクタから意図せずに分離する可能性は低い。 When the cover is attached to the male connector and the cap is not attached to the connector main part, the band is arranged on the base end side with respect to the connecting part. If a cap is attached to the connector main part to place the male connector in the patient, the connecting part is surrounded by the connector body and the band. Therefore, when the male connector to which the cover of the present invention is attached is placed in the patient, it is unlikely that the cover will be unintentionally separated from the male connector.
図１Ａは、オスコネクタと本発明の実施形態１にかかるカバーとを示した分解斜視図である。FIG. 1A is an exploded perspective view showing a male connector and a cover according to the first embodiment of the present invention. 図１Ｂは、図１Ａの断面斜視図である。1B is a cross-sectional perspective view of FIG. 1A. 図２Ａは、本発明の実施形態１にかかるカバーの前側から見た正面図である。図２Ｂは、図２Ａのカバーの側面図である。FIG. 2A is a front view of the cover according to the first embodiment of the present invention as viewed from the front side. 2B is a side view of the cover of FIG. 2A. 図３Ａは、本発明の実施形態１にかかるカバーをオスコネクタに装着し、キャップをコネクタ主部に装着していない状態を示した斜視図である。FIG. 3A is a perspective view showing a state in which the cover according to the first embodiment of the present invention is attached to the male connector and the cap is not attached to the connector main portion. 図３Ｂは、図３Ａの断面図である。FIG. 3B is a cross-sectional view of FIG. 3A. 図４Ａは、本発明の実施形態１にかかるカバーをオスコネクタに装着し、キャップをコネクタ主部に装着した状態を前側から見た斜視図である。FIG. 4A is a perspective view of a state in which the cover according to the first embodiment of the present invention is attached to the male connector and the cap is attached to the connector main portion as viewed from the front side. 図４Ｂは、図４Ａの状態を後ろ側から見た斜視図である。FIG. 4B is a perspective view of the state of FIG. 4A as viewed from the rear side. 図４Ｃは、図４Ａの断面図である。4C is a cross-sectional view of FIG. 4A. 図４Ｄは、図４Ａの正面図である。4D is a front view of FIG. 4A. 図５Ａは、本発明の実施形態１にかかるカバーを装着したオスコネクタにメスコネクタを接続した状態を示した斜視図である。FIG. 5A is a perspective view showing a state in which a female connector is connected to a male connector to which a cover according to the first embodiment of the present invention is attached. 図５Ｂは、図５Ａの断面図である。5B is a cross-sectional view of FIG. 5A. 図６は、本発明の実施形態２にかかるカバーの斜視図である。FIG. 6 is a perspective view of the cover according to the second embodiment of the present invention. 図７Ａは、図６のカバーの断面斜視図である。図７Ｂは、図６のカバーの別の面に沿った断面斜視図である。7A is a cross-sectional perspective view of the cover of FIG. FIG. 7B is a cross-sectional perspective view along another surface of the cover of FIG. 図８Ａは、図６のカバーの前側から見た正面図である。図８Ｂは、図６のカバーの第１側面図である。図８Ｃは、図６のカバーの第２側面図である。8A is a front view of the cover of FIG. 6 as viewed from the front side. FIG. 8B is a first side view of the cover of FIG. FIG. 8C is a second side view of the cover of FIG. 図９Ａは、本発明の実施形態２にかかるカバーをオスコネクタに装着し、キャップをコネクタ主部に装着していない状態を示した斜視図である。FIG. 9A is a perspective view showing a state in which the cover according to the second embodiment of the present invention is attached to the male connector and the cap is not attached to the connector main portion. 図９Ｂは、図９Ａの断面図である。9B is a cross-sectional view of FIG. 9A. 図９Ｃは、図９Ａの別の面に沿った断面図である。9C is a cross-sectional view taken along another surface of FIG. 9A. 図１０Ａは、本発明の実施形態２にかかるカバーをオスコネクタに装着し、キャップをコネクタ主部に装着した状態を示した斜視図である。FIG. 10A is a perspective view showing a state in which the cover according to the second embodiment of the present invention is attached to the male connector and the cap is attached to the connector main portion. 図１０Ｂは、図１０Ａの断面図である。10B is a cross-sectional view of FIG. 10A. 図１１Ａは、本発明の実施形態３にかかるカバーの斜視図である。図１１Ｂは、図１１Ａのカバーの断面斜視図である。FIG. 11A is a perspective view of the cover according to the third embodiment of the present invention. 11B is a cross-sectional perspective view of the cover of FIG. 11A. 図１２Ａは、本発明の実施形態３にかかるカバーの別の方向から見た斜視図である。図１２Ｂは、図１２Ａのカバーの前側から見た正面図である。FIG. 12A is a perspective view of the cover according to the third embodiment of the present invention as viewed from another direction. 12B is a front view of the cover of FIG. 12A as viewed from the front side. 図１３は、本発明の実施形態３にかかるカバーをオスコネクタに装着し、キャップをコネクタ主部に装着していない状態を示した斜視図である。FIG. 13 is a perspective view showing a state in which the cover according to the third embodiment of the present invention is attached to the male connector and the cap is not attached to the connector main portion. 図１４Ａは、本発明の実施形態３にかかるカバーをオスコネクタに装着し、キャップをコネクタ主部に装着した状態を示した斜視図である。FIG. 14A is a perspective view showing a state in which the cover according to the third embodiment of the present invention is attached to the male connector and the cap is attached to the connector main portion. 図１４Ｂは、図１４Ａの断面図である。14B is a cross-sectional view of FIG. 14A. 図１５は、本発明の実施形態４にかかるカバーの斜視図である。FIG. 15 is a perspective view of the cover according to the fourth embodiment of the present invention. 図１６Ａは、図１５のカバーの別の方向から見た斜視図である。図１６Ｂは、図１５のカバーの前側から見た正面図である。16A is a perspective view of the cover of FIG. 15 as viewed from another direction. 16B is a front view of the cover of FIG. 15 as viewed from the front side. 図１７Ａは、本発明の実施形態１にかかるカバーの変形例を示した斜視図である。図１７Ｂは、図１７Ａのカバーの断面斜視図である。FIG. 17A is a perspective view showing a modified example of the cover according to the first embodiment of the present invention. 17B is a cross-sectional perspective view of the cover of FIG. 17A.
　本発明の一態様では、前記カバーは、前記カバーの軸に沿って見た形状が略弧形状であるカバー本体を更に備えていてもよい。前記連結部は、前記カバー本体の対向する端面をつないでいていてもよい。前記カバー本体と前記連結部とが前記収容部を構成してもよい。かかる態様によれば、カバーの構成を簡単化することができる。なお、「略弧形状」とは、「円弧」のほか、厳密には円弧とはいえない湾曲形状（例えば楕円の一部）を含む。 In one aspect of the present invention, the cover may further include a cover body having a substantially arc shape when viewed along the axis of the cover. The connecting portion may connect the facing end faces of the cover body. The cover body and the connecting portion may form the accommodating portion. According to such an aspect, the configuration of the cover can be simplified. In addition to the "arc", the "substantial arc shape" includes a curved shape (for example, a part of an ellipse) that cannot be said to be an arc in a strict sense.
　本発明の一態様では、前記バンドが、前記コネクタ本体から導出されていていてもよい。かかる態様によれば、カバーを当該オスコネクタに装着し、キャップをコネクタ主部に装着すると、バンドは、湾曲して、必然的に連結部をまたぐ。 In one aspect of the present invention, the band may be derived from the connector body. According to this aspect, when the cover is attached to the male connector and the cap is attached to the connector main portion, the band bends and inevitably straddles the connecting portion.
　本発明の一態様では、前記カバーを前記オスコネクタに装着し且つ前記キャップを前記コネクタ主部に装着したとき、前記バンドが前記連結部をまたいで前記コネクタ主部の先端側へ延びてもよい。かかる態様は、カバーが装着されたオスコネクタを患者に留置したとき、カバーがオスコネクタから意図せずに分離する可能性を低減するのに有利である。 In one aspect of the present invention, when the cover is attached to the male connector and the cap is attached to the connector main portion, the band may extend across the connecting portion to the tip end side of the connector main portion. .. Such an embodiment is advantageous in reducing the possibility that the cover will unintentionally separate from the male connector when the male connector with the cover attached is placed in the patient.
　本発明の一態様では、前記カバーは、前記連結部の外面を底面とする溝を更に備えていてもよい。前記カバーを前記オスコネクタに装着し且つ前記キャップを前記コネクタ主部に装着したとき、前記バンドは前記溝に収容されてもよい。かかる態様は、カバーが装着されたオスコネクタが患者の下敷きになった場合に、オスコネクタのバンドが患者に与える痛みを低減するのに有利である。 In one aspect of the present invention, the cover may further include a groove having the outer surface of the connecting portion as the bottom surface. When the cover is attached to the male connector and the cap is attached to the connector main portion, the band may be accommodated in the groove. Such an embodiment is advantageous in reducing the pain caused by the band of the male connector to the patient when the male connector to which the cover is attached is placed under the patient.
　本発明の一態様では、前記カバーは、半径方向に沿った凹部を更に備えていてもよい。前記カバーを前記オスコネクタに装着し且つ前記キャップを前記コネクタ主部に装着していないとき、前記カバーが前記オスコネクタに対して回転しないように前記凹部が前記バンドに係合してもよい。かかる態様によれば、凹部がバンドに係合していれば、その後、キャップをコネクタ主部に装着するときに、カバーをオスコネクタに対して軸周りに位置合わせする必要がない。 In one aspect of the present invention, the cover may further include recesses along the radial direction. When the cover is attached to the male connector and the cap is not attached to the connector main portion, the recess may engage the band so that the cover does not rotate with respect to the male connector. According to this aspect, if the recess is engaged with the band, then when the cap is attached to the connector main portion, it is not necessary to align the cover about the axis with respect to the male connector.
　本発明の一態様では、前記キャップは、前記コネクタ主部の先端を覆うことができる円形の封止板と、前記封止板から半径方向外向きに突出したタブとを備えていてもよい。前記バンドは、前記封止板の前記タブとは反対側の位置に接続されていてもよい。前記カバーを前記オスコネクタに装着し且つ前記キャップを前記コネクタ主部に装着したとき、前記タブが前記カバーより半径方向外向きに突出しなくてもよい。キャップに設けられたタブは、コネクタ主部からキャップを取り外すのを容易にする。上記態様は、カバーが装着されたオスコネクタが患者の下敷きになった場合に、オスコネクタのタブが患者に与える痛みを低減するのに有利である。 In one aspect of the present invention, the cap may include a circular sealing plate capable of covering the tip of the connector main portion, and a tab protruding radially outward from the sealing plate. The band may be connected at a position opposite to the tab of the sealing plate. When the cover is attached to the male connector and the cap is attached to the connector main portion, the tab does not have to protrude radially outward from the cover. The tabs on the cap make it easy to remove the cap from the connector main. The above aspect is advantageous in reducing the pain caused by the tabs of the male connector to the patient when the male connector to which the cover is attached is placed under the patient.
　本発明の一態様では、前記カバーは、前記カバーの軸に平行な第３方向に沿った第３外寸法と、前記第３方向に垂直である第１方向に沿った第１外寸法と、前記第１方向及び前記第３方向に垂直な第２方向に沿った第２外寸法とを有していてもよい。前記カバーは、前記第２外寸法及び前記第３外寸法より前記第１外寸法が小さな扁平形状を有していてもよい。かかる態様によれば、オスコネクタに装着したカバーは、寝具等の上で、カバーの第１方向が上下方向になるように向く可能性が高い。従って、カバー及びオスコネクタを、所望する向きに安定的に向かせることができる。 In one aspect of the invention, the cover has a third outer dimension along a third direction parallel to the axis of the cover and a first outer dimension along a first direction perpendicular to the third direction. It may have a second outer dimension along the first direction and the second direction perpendicular to the third direction. The cover may have a flat shape in which the first outer dimension is smaller than the second outer dimension and the third outer dimension. According to this aspect, the cover attached to the male connector is likely to face the bedding or the like so that the first direction of the cover is the vertical direction. Therefore, the cover and the male connector can be stably oriented in the desired direction.
　本発明の一態様では、前記基端部は、前記オスコネクタの軸に垂直な長軸を有していてもよい。前記カバーは、前記カバーの前記第２方向を前記基端部の前記長軸に平行にして前記オスコネクタに装着することができてもよい。かかる態様によれば、カバーが装着されたオスコネクタが、カバーの第１方向が上下方向に向いて患者の下敷きになった場合、基端部の長軸は水平方向に向く。これは、基端部が患者に与える痛みを低減するのに有利である。 In one aspect of the present invention, the base end portion may have a long axis perpendicular to the axis of the male connector. The cover may be attached to the male connector with the second direction of the cover parallel to the long axis of the proximal end. According to this aspect, when the male connector to which the cover is attached is placed under the patient with the first direction of the cover facing vertically, the long axis of the proximal end faces horizontally. This is advantageous in reducing the pain that the proximal site causes to the patient.
　本発明の一態様では、前記連結部は、前記第１方向に平行に延びていていてもよい。かかる態様によれば、カバーが装着されたオスコネクタが、カバーの第１方向が上下方向に向いて患者の下敷きになった場合、バンドは水平方向に突出する。これは、バンドが患者に与える痛みを低減するのに有利である。 In one aspect of the present invention, the connecting portion may extend in parallel with the first direction. According to such an embodiment, when the male connector to which the cover is attached is placed under the patient with the first direction of the cover facing up and down, the band protrudes horizontally. This is advantageous in reducing the pain that the band causes to the patient.
　本発明の一態様では、前記カバーは、前記カバーを前記オスコネクタに装着したとき前記基端部に半径方向に対向するように構成されたスカートを更に備えていてもよい。かかる態様によれば、カバーが装着されたオスコネクタが患者の下敷きになった場合に、オスコネクタの基端部が患者に与える痛みを低減するのに有利である。 In one aspect of the present invention, the cover may further include a skirt configured to face the base end portion in the radial direction when the cover is attached to the male connector. According to such an embodiment, it is advantageous to reduce the pain caused by the proximal end of the male connector to the patient when the male connector to which the cover is attached is placed under the patient.
　本発明の一態様では、前記カバーは、前記カバーの軸に平行な第３方向に沿った第３外寸法と、前記第３方向に垂直である第１方向に沿った第１外寸法と、前記第１方向及び前記第３方向に垂直な第２方向に沿った第２外寸法とを有していてもよい。前記カバーは、前記第２外寸法及び前記第３外寸法より前記第１外寸法が小さな扁平形状を有していてもよい。前記スカートは、前記第１方向に離間して対向する一対の対向部を備えていてもよい。前記カバーを前記オスコネクタに装着したとき、前記一対の対向部の間に前記基端部が配置されてもよい。かかる態様によれば、カバーが装着されたオスコネクタが、カバーの第１方向が上下方向に向いて患者の下敷きになった場合、基端部の上下に対向部が配置される。これは、基端部が患者に与える痛みを低減するのに有利である。 In one aspect of the invention, the cover has a third outer dimension along a third direction parallel to the axis of the cover and a first outer dimension along a first direction perpendicular to the third direction. It may have a second outer dimension along the first direction and the second direction perpendicular to the third direction. The cover may have a flat shape in which the first outer dimension is smaller than the second outer dimension and the third outer dimension. The skirt may include a pair of facing portions that are spaced apart from each other in the first direction and face each other. When the cover is attached to the male connector, the base end portion may be arranged between the pair of facing portions. According to this aspect, when the male connector to which the cover is attached is placed under the patient with the first direction of the cover facing in the vertical direction, the facing portions are arranged above and below the base end portion. This is advantageous in reducing the pain that the proximal site causes to the patient.
　本発明の一態様では、前記カバーは、前記カバーを前記オスコネクタに装着し且つ前記キャップを前記コネクタ主部に装着したとき前記キャップに半径方向に対向するように構成されたカラーを更に備えていてもよい。かかる態様によれば、カバーが装着されたオスコネクタが患者の下敷きになった場合に、オスコネクタのキャップが患者に与える痛みを低減するのに有利である。 In one aspect of the invention, the cover further comprises a collar configured to face the cap radially when the cover is attached to the male connector and the cap is attached to the connector main body. You may. According to such an embodiment, it is advantageous to reduce the pain caused by the cap of the male connector to the patient when the male connector to which the cover is attached is placed under the patient.
　本発明の一態様では、前記カバーは、前記カバーの軸に平行な第３方向に沿った第３外寸法と、前記第３方向に垂直である第１方向に沿った第１外寸法と、前記第１方向及び前記第３方向に垂直な第２方向に沿った第２外寸法とを有していてもよい。前記カバーは、前記第２外寸法及び前記第３外寸法より前記第１外寸法が小さな扁平形状を有していてもよい。前記カバーを前記オスコネクタに装着し且つ前記キャップを前記コネクタ主部に装着したとき、前記カラーは前記キャップに前記第１方向に対向してもよい。かかる態様によれば、カバーが装着されたオスコネクタが、カバーの第１方向が上下方向に向いて患者の下敷きになった場合、カラーはキャップに上下方向に対向する。これは、キャップが患者に与える痛みを低減するのに有利である。 In one aspect of the invention, the cover has a third outer dimension along a third direction parallel to the axis of the cover and a first outer dimension along a first direction perpendicular to the third direction. It may have a second outer dimension along the first direction and the second direction perpendicular to the third direction. The cover may have a flat shape in which the first outer dimension is smaller than the second outer dimension and the third outer dimension. When the cover is attached to the male connector and the cap is attached to the connector main portion, the collar may face the cap in the first direction. According to such an embodiment, when the male connector to which the cover is attached is placed under the patient with the first direction of the cover facing in the vertical direction, the collar faces the cap in the vertical direction. This is advantageous in reducing the pain that the cap causes to the patient.
　本発明の一態様では、前記カバーは、前記オスコネクタの前記コネクタ主部と前記基端部との間の段差に係合する係合構造を更に備えていてもよい。かかる態様によれば、カバーをオスコネクタに装着し且つキャップをコネクタ主部に装着していない状態において、カバーがオスコネクタに対して前方（基端部からコネクタ主部へ向く方向）へ移動するのを阻止するのに有利である。 In one aspect of the invention, the cover may further comprise an engaging structure that engages a step between the connector main portion and the proximal end portion of the male connector. According to this aspect, the cover moves forward with respect to the male connector (in the direction from the proximal end toward the connector main portion) when the cover is attached to the male connector and the cap is not attached to the connector main portion. It is advantageous to prevent it.
　本発明の一態様では、前記オスコネクタに装着された前記カバーを、前記カバーの軸と前記連結部とを含む面に垂直な方向に沿って見たとき、前記コネクタ本体は前記カバーからはみ出さなくてもよい。かかる態様によれば、カバーが装着されたオスコネクタが患者の下敷きになった場合に、コネクタ本体が患者に与える痛みを低減するのに有利である。 In one aspect of the present invention, when the cover attached to the male connector is viewed along a direction perpendicular to the surface including the axis of the cover and the connecting portion, the connector body protrudes from the cover. It does not have to be. According to such an embodiment, it is advantageous to reduce the pain caused by the connector body to the patient when the male connector to which the cover is attached is placed under the patient.
　本発明の一態様では、前記収容部に収容された前記コネクタ主部を見ることができるように前記カバーを貫通する貫通孔が前記カバーに設けられていてもよい。かかる態様によれば、例えば、コネクタ主部の外周面に記載された情報を、カバーがオスコネクタに装着された状態で、貫通孔を介して視認することができる。 In one aspect of the present invention, the cover may be provided with a through hole penetrating the cover so that the connector main portion housed in the housing portion can be seen. According to such an embodiment, for example, the information described on the outer peripheral surface of the connector main portion can be visually recognized through the through hole in a state where the cover is attached to the male connector.
　本発明の一態様では、前記カバーの軸と前記連結部とを含む面に垂直な方向に沿って前記カバーを見たとき、前記カバーは前記カバーの軸に対して非対称であってもよい。かかる態様は、カバーに対してオスコネクタを挿抜する位置を認識するのに有利である。 In one aspect of the present invention, the cover may be asymmetric with respect to the axis of the cover when the cover is viewed along a direction perpendicular to the plane including the axis of the cover and the connecting portion. Such an embodiment is advantageous for recognizing the position where the male connector is inserted / removed with respect to the cover.
　本発明の一態様では、前記カバーは、前記カバーを前記オスコネクタに装着したとき前記基端部に半径方向に対向するように構成されたスカートを更に備えていてもよい。前記カバーの軸と前記連結部とを含む面に垂直な方向に沿って前記カバーを見たとき前記スカートの外周縁が前記カバーの軸に対して非対称になるように、前記カバーに切り欠きが設けられていてもよい。かかる態様によれば、オスコネクタをカバーに挿入するとき、カバーに対してオスコネクタを位置決めするために切り欠きを利用することができる。これは、オスコネクタに対するカバーの装着性の向上に有利である。 In one aspect of the present invention, the cover may further include a skirt configured to face the base end portion in the radial direction when the cover is attached to the male connector. The cover is notched so that the outer peripheral edge of the skirt is asymmetric with respect to the axis of the cover when the cover is viewed along a direction perpendicular to the plane including the axis of the cover and the connecting portion. It may be provided. According to such an embodiment, when inserting the male connector into the cover, a notch can be utilized to position the male connector with respect to the cover. This is advantageous for improving the wearability of the cover with respect to the male connector.
　本発明の一態様では、前記カバーは、前記カバーの軸に垂直な方向に互いに反対側を向いた一対の側面を備えていてもよい。前記一対の側面のそれぞれは、凸曲面であってもよい。前記一対の側面は平坦面を介して接続されていてもよい。かかる態様は、カバーを金型を用いて成形して製造する場合に、カバーの製造を容易にするのに有利である。 In one aspect of the present invention, the cover may include a pair of sides facing each other in a direction perpendicular to the axis of the cover. Each of the pair of side surfaces may be a convex curved surface. The pair of side surfaces may be connected via a flat surface. Such an embodiment is advantageous for facilitating the manufacture of the cover when the cover is molded and manufactured using a mold.
　本発明の一態様では、前記カバーの外面に孔が設けられていてもよい。かかる態様は、カバーの軽量化及びカバーのクッション性の調整をするのに有利である。 In one aspect of the present invention, a hole may be provided on the outer surface of the cover. Such an aspect is advantageous for reducing the weight of the cover and adjusting the cushioning property of the cover.
　以下に、本発明を好適な実施形態を示しながら詳細に説明する。但し、本発明は以下の実施形態に限定されないことはいうまでもない。以下の説明において参照する各図は、説明の便宜上、本発明の実施形態を構成する主要部材を簡略化して示したものである。従って、本発明は以下の各図に示されていない任意の部材を備え得る。また、本発明の範囲内において、以下の各図に示された各部材を変更または省略し得る。各実施形態の説明において引用する図面において、先行する実施形態で引用した図面に示された部材に対応する部材には、当該先行する実施形態の図面で付された符号と同じ符号が付してある。そのような部材については、重複する説明が省略されており、先行する実施形態の説明を適宜参酌すべきである。 Hereinafter, the present invention will be described in detail with reference to suitable embodiments. However, it goes without saying that the present invention is not limited to the following embodiments. For convenience of explanation, each figure referred to in the following description is a simplified representation of the main members constituting the embodiment of the present invention. Therefore, the present invention may include any member not shown in each of the following figures. Further, within the scope of the present invention, each member shown in each of the following figures may be changed or omitted. In the drawings cited in the description of each embodiment, the members corresponding to the members shown in the drawings cited in the preceding embodiments are designated by the same reference numerals as those assigned in the drawings of the preceding embodiments. be. Overlapping description of such members has been omitted, and description of the preceding embodiments should be taken into account as appropriate.
　本発明において、部材（例えば、カバー、オスコネクタ）の「軸」は、当該部材の中心軸を意味する。「軸」は、部材に含まれる円の中心を通り、且つ／又は、部材に含まれる円筒の中心軸と一致する。軸に直交する直線に沿った方向を「半径方向」という。半径方向において、軸に近い側を「内」側、軸に遠い側を「外」側という。軸の周りを回転する方向を「周方向」という。 In the present invention, the "axis" of a member (eg, cover, male connector) means the central axis of the member. The "axis" passes through the center of the circle contained in the member and / or coincides with the central axis of the cylinder contained in the member. The direction along the straight line orthogonal to the axis is called the "radial direction". In the radial direction, the side closer to the axis is called the "inner" side, and the side farther from the axis is called the "outer" side. The direction of rotation around the axis is called the "circumferential direction".
　（実施形態１）
　図１Ａは、オスコネクタ９００と、オスコネクタ９００に装着する直前の本発明の実施形態１にかかるカバー１の斜視図である。図１Ｂは、図１Ａの断面斜視図である。図１Ｂの断面は、同軸に配置されたカバー１及びオスコネクタ９００の軸（図示せず）を含む。以下の説明の便宜のために、図示したようなＸＹＺ直交座標系をカバー１及びオスコネクタ９００のそれぞれに対して設定する。Ｚ軸は、カバー１及びオスコネクタ９００の軸と平行である。Ｚ軸方向を、単に「軸方向」ということがある。軸方向（Ｚ軸方向）において、Ｚ軸の矢印の側（図１Ａにおいて上側）を「前」側、これとは反対側（図１Ａにおいて下側）を「後ろ」側という。 (Embodiment 1)
FIG. 1A is a perspective view of the male connector 900 and the cover 1 according to the first embodiment of the present invention immediately before being attached to the male connector 900. 1B is a cross-sectional perspective view of FIG. 1A. The cross section of FIG. 1B includes a coaxially arranged cover 1 and a shaft of the male connector 900 (not shown). For the convenience of the following description, an XYZ Cartesian coordinate system as shown is set for each of the cover 1 and the male connector 900. The Z axis is parallel to the axis of the cover 1 and the male connector 900. The Z-axis direction may be simply referred to as "axial direction". In the axial direction (Z-axis direction), the side indicated by the arrow on the Z-axis (upper side in FIG. 1A) is referred to as the "front" side, and the opposite side (lower side in FIG. 1A) is referred to as the "rear" side.
　最初に、オスコネクタ９００について説明する。オスコネクタ９００は、経鼻経管栄養に使用される。オスコネクタ９００は、一端に円筒形状のコネクタ主部９１０を備え、他端にチューブ９０９が導出された基端部９２０を備えたコネクタ本体９０１を有する。 First, the male connector 900 will be explained. The male connector 900 is used for nasal tube feeding. The male connector 900 has a connector body 901 having a cylindrical connector main portion 910 at one end and a base end portion 920 from which the tube 909 is led out at the other end.
　図１Ｂに示されているように、コネクタ主部９１０は、中空の筒形状を有するオス部材９１１と、オス部材９１１を取り囲む外筒９１５とを有する。オス部材９１１の外周面９１２は、オス部材９１１の先端に近づくにしたがって外径が小さくなるテーパ面（いわゆるオステーパ面）である。オス部材９１１は、外周面９１２より先端側に、外周面９１２より大きなテーパ角度を有する先端テーパ面９１３を有する。オス部材９１１の先端（特に先端テーパ面９１３）は、外筒９１５の先端より、軸方向に突出している。外筒９１５よりも突出した先端テーパ面９１３は、キャップ９３０及びメスコネクタ９５０（後述する図５Ａ及び図５Ｂ参照）のオスコネクタ９００に対する接続を容易にする。オス部材９１１には、その長手方向（Ｚ軸方向）に沿ってオス部材９１１を貫通する流路９１９が設けられている。外筒９１５は、略円筒形状を有し、オス部材９１１と同軸に、オス部材９１１から半径方向に離間して配置されている。外筒９１５のオス部材９１１に対向する内周面には雌ネジ９１６が設けられている。 As shown in FIG. 1B, the connector main portion 910 has a male member 911 having a hollow tubular shape and an outer cylinder 915 surrounding the male member 911. The outer peripheral surface 912 of the male member 911 is a tapered surface (so-called male tapered surface) whose outer diameter decreases as it approaches the tip of the male member 911. The male member 911 has a tip tapered surface 913 having a taper angle larger than that of the outer peripheral surface 912 on the tip side of the outer peripheral surface 912. The tip of the male member 911 (particularly, the tip tapered surface 913) protrudes in the axial direction from the tip of the outer cylinder 915. The tapered surface 913 protruding from the outer cylinder 915 facilitates the connection of the cap 930 and the female connector 950 (see FIGS. 5A and 5B described later) to the male connector 900. The male member 911 is provided with a flow path 919 that penetrates the male member 911 along its longitudinal direction (Z-axis direction). The outer cylinder 915 has a substantially cylindrical shape, and is arranged coaxially with the male member 911 and radially separated from the male member 911. A female screw 916 is provided on the inner peripheral surface of the outer cylinder 915 facing the male member 911.
　基端部９２０は、オス部材９１１と同軸の接続筒９２１を備える。接続筒９２１は、中空の筒形状を有し、オス部材９１１と連通している。図１Ａに示されているように、基端部９２０は、更に、接続筒９２１を取り囲むように設けられたグリップ部９２３を備える。本実施形態のグリップ部９２３は、全体として略四角柱形状を有する。グリップ部９２３のＸＹ面に垂直な平面に沿った断面形状は、略長方形である。基端部９２０は、グリップ部９２３の略長方形の長辺に平行な長軸を有する。長軸は、Ｙ軸に平行である。基端部９２０の長軸は、オスコネクタ９００の軸（当該軸は、オス部材９１１、外筒９１５、及び接続筒９２１の中心軸により規定される。）に直交する平面（ＸＹ面）において、基端部９２０の外寸法が最大となる方向に沿った軸である。長軸及びオスコネクタ９００の軸に直交する方向（Ｘ軸方向）を基端部９２０の「厚さ方向」という。基端部９２０の長軸方向（Ｙ軸方向）に沿った寸法は外筒９１５の外径とほぼ同じである。基端部９２０の厚さ方向（Ｘ軸方向）に沿った寸法は外筒９１５の外径より小さく、接続筒９２１の外径と略同じである。基端部９２０（グリップ部９２３）は、ＹＺ面に平行な平坦面であるグリップ面９２４を有する。作業者は、基端部９２０を、グリップ面９２４にて厚さ方向に把持することができる。長軸を有する基端部９２０は、作業者がオスコネクタ９００にその軸周りの回転力を加えるのを容易にする。 The base end portion 920 includes a connection cylinder 921 coaxial with the male member 911. The connection cylinder 921 has a hollow cylinder shape and communicates with the male member 911. As shown in FIG. 1A, the base end portion 920 further includes a grip portion 923 provided so as to surround the connection cylinder 921. The grip portion 923 of the present embodiment has a substantially quadrangular prism shape as a whole. The cross-sectional shape of the grip portion 923 along the plane perpendicular to the XY plane is substantially rectangular. The base end portion 920 has a long axis parallel to the long side of the substantially rectangular shape of the grip portion 923. The long axis is parallel to the Y axis. The long axis of the base end portion 920 is in a plane (XY plane) orthogonal to the axis of the male connector 900 (the axis is defined by the central axis of the male member 911, the outer cylinder 915, and the connection cylinder 921). It is an axis along the direction in which the outer dimension of the base end portion 920 is maximized. The direction orthogonal to the major axis and the axis of the male connector 900 (X-axis direction) is referred to as the "thickness direction" of the base end portion 920. The dimensions of the base end portion 920 along the major axis direction (Y-axis direction) are substantially the same as the outer diameter of the outer cylinder 915. The dimension of the base end portion 920 along the thickness direction (X-axis direction) is smaller than the outer diameter of the outer cylinder 915 and is substantially the same as the outer diameter of the connection cylinder 921. The base end portion 920 (grip portion 923) has a grip surface 924 which is a flat surface parallel to the YZ surface. The operator can grip the base end portion 920 on the grip surface 924 in the thickness direction. The base end 920 having a long axis facilitates the operator to apply a rotational force around the axis to the male connector 900.
　基端部９２０から、柔軟な中空のチューブ９０９が導出されている。図１Ｂに示されているように、チューブ９０９は、接続筒９２１に挿入され、接着剤等により接続筒９２１に固定されている。オス部材９１１の流路９１９はチューブ９０９と連通している。チューブ９０９は、患者の鼻腔を通って胃又は食道にまで挿入された経鼻カテーテルであってもよい。あるいは、チューブ９０９は、経鼻カテーテルに接続されたチューブ（延長チューブ）であってもよい。チューブ９０９の外径は、患者の体格等に応じて適宜変更可能であり、一般に１～５ｍｍ程度である。 A flexible hollow tube 909 is derived from the base end portion 920. As shown in FIG. 1B, the tube 909 is inserted into the connecting cylinder 921 and fixed to the connecting cylinder 921 with an adhesive or the like. The flow path 919 of the male member 911 communicates with the tube 909. The tube 909 may be a nasal catheter inserted through the patient's nasal cavity into the stomach or esophagus. Alternatively, the tube 909 may be a tube (extension tube) connected to the nasal catheter. The outer diameter of the tube 909 can be appropriately changed according to the physique of the patient and the like, and is generally about 1 to 5 mm.
　オスコネクタ９００は、更に、キャップ９３０及びバンド９３５を備える。キャップ９３０は、略円板形状の封止板９３１と、封止板９３１から突出した円筒形状の封止筒９３２とを備える。キャップ９３０（または封止板９３１）の円形の外周縁から、タブ９３３が半径方向外向きに突出している。キャップ９３０の外周縁のタブ９３３とは反対側の位置から、Ｙ軸と平行に、バンド９３５が延びている。バンド９３５は、キャップ９３０を、コネクタ本体９０１に固定されたリング９３７につなぐ。本実施形態では、リング９３７は、コネクタ主部９１０と基端部９２０との間に固定されている。リング９３７は、外筒９１５と略同じ外径を有する円環形状を有する。リング９３７の後端（基端部９２０側端）は、グリップ面９２４に対して半径方向外向きに突出した段差９０５を形成している（後述する図４Ｂ参照）。 The male connector 900 further includes a cap 930 and a band 935. The cap 930 includes a substantially disk-shaped sealing plate 931 and a cylindrical sealing cylinder 932 protruding from the sealing plate 931. A tab 933 projects radially outward from the circular outer peripheral edge of the cap 930 (or sealing plate 931). A band 935 extends parallel to the Y axis from a position on the outer peripheral edge of the cap 930 opposite to the tab 933. The band 935 connects the cap 930 to the ring 937 fixed to the connector body 901. In this embodiment, the ring 937 is fixed between the connector main portion 910 and the base end portion 920. The ring 937 has an annular shape having substantially the same outer diameter as the outer cylinder 915. The rear end (base end portion 920 side end) of the ring 937 forms a step 905 projecting outward in the radial direction with respect to the grip surface 924 (see FIG. 4B described later).
　キャップ９３０はコネクタ主部９１０の先端に繰り返し着脱可能である。経鼻経管栄養を行わない場合には、コネクタ主部９１０にキャップ９３０を装着した状態で、オスコネクタ９００は患者に留置される（後述する図４Ａ参照）。タブ９３３に指を掛けることにより、コネクタ主部９１０からのキャップ９３０の取り外しは容易である。バンド９３５は、コネクタ主部９１０から取り外されたキャップ９３０の紛失を防止する。 The cap 930 can be repeatedly attached to and detached from the tip of the connector main portion 910. When no nasal tube feeding is performed, the male connector 900 is placed in the patient with the cap 930 attached to the connector main portion 910 (see FIG. 4A described later). The cap 930 can be easily removed from the connector main portion 910 by hooking a finger on the tab 933. The band 935 prevents the cap 930 removed from the connector main portion 910 from being lost.
　コネクタ本体９０１は、硬質材料を用いて全体を一部品として一体的に成形されうる。硬質材料は、外力によって実質的に変形しない程度の機械的強度（剛性）を有することが好ましい。具体的には、硬質材料として、例えば、ポリプロピレン、アクリロニトリル－ブタジエン－スチレン共重合体、ポリカーボネート、ポリアセタール、ポリスチレン、ポリアミド、ポリエチレン、硬質ポリ塩化ビニル等の樹脂材料を用いることができる。コネクタ本体９０１が、別個に製造された複数の部品（例えば、外筒９１５と、外筒９１５を除く部分との２部品）を組み合わせて構成されていてもよい。この場合、複数の部品を構成する材料は、同一であっても異なっていてもよく、それぞれ上記硬質材料から選択することができる。 The connector body 901 can be integrally molded as a whole using a hard material. The hard material preferably has mechanical strength (rigidity) to such an extent that it is not substantially deformed by an external force. Specifically, as the hard material, for example, resin materials such as polypropylene, acrylonitrile-butadiene-styrene copolymer, polycarbonate, polyacetal, polystyrene, polyamide, polyethylene, and hard polyvinyl chloride can be used. The connector main body 901 may be configured by combining a plurality of separately manufactured parts (for example, two parts of an outer cylinder 915 and a portion other than the outer cylinder 915). In this case, the materials constituting the plurality of parts may be the same or different, and each can be selected from the above-mentioned hard materials.
　キャップ９３０、タブ９３３、バンド９３５、及びリング９３７は、コネクタ本体９０１に比べて変形が容易な軟質材料を用いて、全体を一部品として一体的に成形されうる。キャップ９３０を含むこれらの一体化品に使用しうる軟質材料としては、ポリプロピレン、ポリエチレン等の比較的硬質の樹脂材料、あるいは、ゴム（例えば、イソプレンゴム、シリコーンゴム、ブチルゴム）または熱可塑性エラストマー（例えば、スチレン系エラストマー、オレフィン系エラストマー、ポリウレタン系エラストマー）等のゴム弾性を有する軟質の材料（いわゆるエラストマー）を用いることができる。 The cap 930, the tab 933, the band 935, and the ring 937 can be integrally molded as one part by using a soft material that is easily deformed as compared with the connector main body 901. The soft materials that can be used in these integrated products, including the cap 930, include relatively hard resin materials such as polypropylene and polyethylene, rubber (eg, isoprene rubber, silicone rubber, butyl rubber) or thermoplastic elastomers (eg, for example). , A styrene-based elastomer, an olefin-based elastomer, a polyurethane-based elastomer) and other soft materials having rubber elasticity (so-called elastomers) can be used.
　オスコネクタ９００の構成は、例示に過ぎず、特に、メスコネクタ９５０（後述する図５Ａ、図５Ｂ参照）との接続に直接関与しない部分の構成は、適宜変更しうる。例えば、本実施形態では、リング９３７は、コネクタ主部９１０と基端部９２０との間の位置に設けられているが、リング９３７の位置はこれに限定されない。例えばリング９３７がコネクタ主部９１０（外筒９１５）の先端（前端）と後端（基端部９２０側端）との間の任意の位置に装着されていてもよく、この場合、コネクタ主部９１０（外筒９１５）の後端が、グリップ面９２４に対して半径方向外向きに突出した段差９０５を構成する。バンド９３５をオスコネクタ９００に連結するための構成は、リング９３７に限定されない。例えば、二色成形等により、バンド９３５の基端がコネクタ主部９１０に埋め込まれていてもよい。この場合、リング９３７は不要である。キャップ９３０の構成も任意に変更しうる。キャップ９３０がタブ９３３を備えていなくてもよい。 The configuration of the male connector 900 is merely an example, and in particular, the configuration of the portion that is not directly involved in the connection with the female connector 950 (see FIGS. 5A and 5B described later) can be appropriately changed. For example, in the present embodiment, the ring 937 is provided at a position between the connector main portion 910 and the base end portion 920, but the position of the ring 937 is not limited to this. For example, the ring 937 may be mounted at an arbitrary position between the tip end (front end) and the rear end (base end portion 920 side end) of the connector main portion 910 (outer cylinder 915). In this case, the connector main portion may be mounted. The rear end of the 910 (outer cylinder 915) constitutes a step 905 that protrudes outward in the radial direction with respect to the grip surface 924. The configuration for connecting the band 935 to the male connector 900 is not limited to the ring 937. For example, the base end of the band 935 may be embedded in the connector main portion 910 by two-color molding or the like. In this case, the ring 937 is unnecessary. The configuration of the cap 930 can also be changed arbitrarily. The cap 930 does not have to include the tab 933.
　カバー１について説明する。図２Ａはカバー１の前側から見た正面図、図２Ｂはカバー１の側面図である。 Cover 1 will be explained. FIG. 2A is a front view of the cover 1 as viewed from the front side, and FIG. 2B is a side view of the cover 1.
　カバー１は、全体として中空の円筒形状を有する。より詳細には、図２Ａに示されているように、カバー１は、Ｚ軸に沿って見た形状が略「Ｃ」字の円弧形状であるカバー本体１５と、カバー本体１５のＸ軸方向に対向する２端面をつなぐ連結部１１とを備える。カバー本体１５と連結部１１とで囲まれたカバー１の内腔は、コネクタ主部９１０を収容可能な収容部１０である。収容部１０の内周面は円筒面であり、これは、カバー本体１５と連結部１１とで構成される。収容部１０の当該円筒面の中心軸は、Ｚ軸に平行であり、カバー１の軸（図示せず）を規定する。円筒面の内径は、コネクタ主部９１０（または外筒９１５）の外径と略同じかこれより小さいことが好ましい。収容部１０の円筒面の内径がコネクタ主部９１０の外径より小さいと、カバー１をオスコネクタ９００に装着したとき（図３Ａ、図３Ｂ参照）、カバー１がオスコネクタ９００から脱落しにくい。収容部１０は、Ｚ軸方向の両側に向かって開口している。カバー本体１５の外周面１６は、カバー１の軸と同軸の円筒面である。カバー本体１５の半径方向の厚みは略一定である。カバー本体１５の前端面１７ａ及び後端面１７ｂ（図２Ｂ参照）は、ＸＹ面に平行な平坦面である。カバー本体１５のＺ軸方向寸法は、オスコネクタ９００のコネクタ主部９１０のＺ軸方向寸法と同じかこれより大きいことが好ましく、本実施形態１では、外筒９１５の先端から段差９０５までのＺ軸方向寸法と略同じである。 The cover 1 has a hollow cylindrical shape as a whole. More specifically, as shown in FIG. 2A, the cover 1 has a cover body 15 having a substantially “C” arcuate shape when viewed along the Z axis, and the cover body 15 in the X-axis direction. It is provided with a connecting portion 11 for connecting two end faces facing each other. The lumen of the cover 1 surrounded by the cover main body 15 and the connecting portion 11 is an accommodating portion 10 capable of accommodating the connector main portion 910. The inner peripheral surface of the accommodating portion 10 is a cylindrical surface, which is composed of a cover main body 15 and a connecting portion 11. The central axis of the cylindrical surface of the accommodating portion 10 is parallel to the Z axis and defines the axis of the cover 1 (not shown). The inner diameter of the cylindrical surface is preferably substantially the same as or smaller than the outer diameter of the connector main portion 910 (or outer cylinder 915). If the inner diameter of the cylindrical surface of the accommodating portion 10 is smaller than the outer diameter of the connector main portion 910, the cover 1 is unlikely to fall off from the male connector 900 when the cover 1 is attached to the male connector 900 (see FIGS. 3A and 3B). The accommodating portion 10 is open toward both sides in the Z-axis direction. The outer peripheral surface 16 of the cover body 15 is a cylindrical surface coaxial with the axis of the cover 1. The thickness of the cover body 15 in the radial direction is substantially constant. The front end surface 17a and the rear end surface 17b (see FIG. 2B) of the cover body 15 are flat surfaces parallel to the XY surface. The Z-axis direction dimension of the cover body 15 is preferably the same as or larger than the Z-axis direction dimension of the connector main portion 910 of the male connector 900. In the first embodiment, Z from the tip of the outer cylinder 915 to the step 905. It is almost the same as the axial dimension.
　連結部１１は、カバー本体１５より、半径方向の厚みが小さい。このため、連結部１１は、カバー本体１５の外周面１６より半径方向内向きに後退し、連結部１１に沿ってＺ軸方向に延びた溝１２が形成されている。連結部１１の外面（半径方向外側を向いた面）は溝１２の底面を構成する。また、連結部１１は、カバー本体１５より、Ｚ軸方向寸法が小さい。詳細には、連結部１１は、カバー本体１５の後端面１７ｂよりＺ軸方向に後退し、後端面１７ｂに、半径方向に沿って延びた凹部１８が形成されている（図４Ｂ参照）。凹部１８は、溝１２に接続されている。また、連結部１１は、カバー本体１５の前端面１７ａよりＺ軸方向に後退している。連結部１１のＺ軸方向寸法は、コネクタ主部９１０（または外筒９１５）の先端からバンド９３５までのＺ軸に沿った長さと同じかこれより小さいことが好ましい。キャップ９３０をコネクタ主部９１０の先端に装着しやすくなるからである。 The connecting portion 11 is thinner in the radial direction than the cover main body 15. Therefore, the connecting portion 11 retracts inward in the radial direction from the outer peripheral surface 16 of the cover main body 15, and a groove 12 extending in the Z-axis direction is formed along the connecting portion 11. The outer surface of the connecting portion 11 (the surface facing outward in the radial direction) constitutes the bottom surface of the groove 12. Further, the connecting portion 11 has a smaller dimension in the Z-axis direction than the cover main body 15. Specifically, the connecting portion 11 is retracted from the rear end surface 17b of the cover main body 15 in the Z-axis direction, and a concave portion 18 extending in the radial direction is formed in the rear end surface 17b (see FIG. 4B). The recess 18 is connected to the groove 12. Further, the connecting portion 11 is retracted in the Z-axis direction from the front end surface 17a of the cover main body 15. The Z-axis direction dimension of the connecting portion 11 is preferably the same as or smaller than the length along the Z-axis from the tip of the connector main portion 910 (or the outer cylinder 915) to the band 935. This is because the cap 930 can be easily attached to the tip of the connector main portion 910.
　カバー１は、外力によって比較的容易に変形可能であり、且つ、外力を取り除くと直ちに変形前の状態（初期状態）に復元するクッション性（または、弾力性、被圧縮性）を有する材料（以下「クッション性材料」という）からなる。使用しうるクッション性材料としては、制限はないが、フォーム材（スポンジ）が好ましく、例えば、シリコーンフォーム、ポリウレタンフォーム、ポリエチレンフォームなどの樹脂材料を例示することができる。中でもポリウレタンフォームが好ましい。あるいは、クッション性材料として、熱可塑性エラストマー、ゴム、軟質ポリ塩化ビニル、ポリエチレン等を用いてもよい。カバー１は、上記の材料を用いて、全体を一部品として一体的に製造することができる。子供がカバー１を誤飲するのを防止するために、苦味成分（例えば安息香酸デナトニウム）をカバー１に塗布してもよい。 The cover 1 is a material having cushioning properties (or elasticity and compressibility) that can be deformed relatively easily by an external force and that immediately restores to the state before deformation (initial state) when the external force is removed (hereinafter referred to as). It consists of "cushioning material"). The cushioning material that can be used is not limited, but a foam material (sponge) is preferable, and for example, resin materials such as silicone foam, polyurethane foam, and polyethylene foam can be exemplified. Of these, polyurethane foam is preferable. Alternatively, a thermoplastic elastomer, rubber, soft polyvinyl chloride, polyethylene or the like may be used as the cushioning material. The cover 1 can be integrally manufactured as a whole by using the above materials. A bitter taste component (eg, denatonium benzoate) may be applied to cover 1 to prevent children from accidentally swallowing cover 1.
　オスコネクタ９００にカバー１を装着する方法を説明する。 The method of attaching the cover 1 to the male connector 900 will be explained.
　図１Ａ及び図１Ｂに示すように、カバー１の後端面１７ｂを、キャップ９３０が装着されていないコネクタ主部９１０の先端に対向させる。カバー１をオスコネクタ９００と同軸に配置する。カバー１の連結部１１の向きを、カバー本体１５からバンド９３５が延びる方向（Ｙ軸）に合わせる。そして、コネクタ主部９１０をカバー１内に挿入する。 As shown in FIGS. 1A and 1B, the rear end surface 17b of the cover 1 faces the tip of the connector main portion 910 to which the cap 930 is not attached. The cover 1 is arranged coaxially with the male connector 900. The direction of the connecting portion 11 of the cover 1 is aligned with the direction (Y-axis) in which the band 935 extends from the cover main body 15. Then, the connector main portion 910 is inserted into the cover 1.
　図３Ａは、オスコネクタ９００に装着したカバー１の斜視図である。キャップ９３０はコネクタ本体９０１に装着されていない。この状態を、「カバー装着・キャップ非装着状態」という。図３Ｂは、図３ＡのＹＺ面に沿った断面図である。カバー１の収容部１０（図１Ａ参照）内にコネクタ主部９１０（外筒９１５）及びリング９３７が収容されている。連結部１１は、コネクタ主部９１０（外筒９１５）の周方向に沿って延び、且つ、コネクタ主部９１０（外筒９１５）に半径方向に対向している。外筒９１５の先端は、カバー本体１５の前端面１７ａと略同一平面に沿っている。オスコネクタ９００の段差９０５（図１Ａ参照）は、カバー本体１５の後端面１７ｂと略同一平面に沿っている（後述する図４Ｂ参照）。オスコネクタ９００のバンド９３５は、カバー１の連結部１１に対して基端部９２０側（後ろ側）に位置し、凹部１８に収容され、連結部１１に対して軸方向に対向（または当接）している。バンド９３５が連結部１１に軸方向に当接することにより、カバー１に対するオスコネクタ９００（コネクタ主部９１０）の挿入深さが制限される。バンド９３５は、連結部１１よりも半径方向外向きに突出するようにＹ軸に沿って延びている。コネクタ主部９１０の先端は、カバー１で覆われることなく、軸方向に外界に向かって露出されている。本発明において「コネクタ主部９１０の先端が軸方向に外界に向かって露出されている」とは、コネクタ主部９１０を構成するオス部材９１１の先端及び外筒９１５の先端が外界に向かって（前方に向かって）露出され、オス部材９１１の流路９１９及びオス部材９１１と外筒９１５との間の隙間９１８が外界に向かって（前方に向かって）開放されていることを意味する。このため、図３Ａ及び図３Ｂの状態（カバー装着・キャップ非装着状態）から、キャップ９３０をコネクタ主部９１０の先端に装着することができる。 FIG. 3A is a perspective view of the cover 1 attached to the male connector 900. The cap 930 is not attached to the connector body 901. This state is called "cover attached / cap not attached". FIG. 3B is a cross-sectional view taken along the YZ plane of FIG. 3A. The connector main portion 910 (outer cylinder 915) and the ring 937 are accommodated in the accommodating portion 10 (see FIG. 1A) of the cover 1. The connecting portion 11 extends along the circumferential direction of the connector main portion 910 (outer cylinder 915) and faces the connector main portion 910 (outer cylinder 915) in the radial direction. The tip of the outer cylinder 915 is substantially flush with the front end surface 17a of the cover body 15. The step 905 of the male connector 900 (see FIG. 1A) is substantially flush with the rear end surface 17b of the cover body 15 (see FIG. 4B described later). The band 935 of the male connector 900 is located on the base end portion 920 side (rear side) with respect to the connecting portion 11 of the cover 1, is housed in the recess 18, and is axially opposed (or abutted) to the connecting portion 11. )are doing. The axial contact of the band 935 with the connecting portion 11 limits the insertion depth of the male connector 900 (connector main portion 910) with respect to the cover 1. The band 935 extends along the Y axis so as to project outward in the radial direction from the connecting portion 11. The tip of the connector main portion 910 is not covered with the cover 1 and is exposed toward the outside in the axial direction. In the present invention, "the tip of the connector main portion 910 is exposed axially toward the outside world" means that the tip of the male member 911 constituting the connector main portion 910 and the tip of the outer cylinder 915 are exposed toward the outside world ( It means that it is exposed (toward the front) and the flow path 919 of the male member 911 and the gap 918 between the male member 911 and the outer cylinder 915 are opened toward the outside world (toward the front). Therefore, the cap 930 can be attached to the tip of the connector main portion 910 from the state of FIGS. 3A and 3B (the cover is attached and the cap is not attached).
　図４Ａは、カバー１をオスコネクタ９００に装着し、キャップ９３０をコネクタ主部９１０に装着した状態を前側から見た斜視図である。この状態を、「カバー装着・キャップ装着状態」という。図４Ｂは、図４Ａの状態を後ろ側から見た斜視図である。図４Ｃは図４Ａの断面図、図４Ｄは図４Ａの正面図である。 FIG. 4A is a perspective view of a state in which the cover 1 is attached to the male connector 900 and the cap 930 is attached to the connector main portion 910 as viewed from the front side. This state is called "cover attached / cap attached state". FIG. 4B is a perspective view of the state of FIG. 4A as viewed from the rear side. 4C is a cross-sectional view of FIG. 4A, and FIG. 4D is a front view of FIG. 4A.
　カバー１がオスコネクタ９００のコネクタ主部９１０（または外筒９１５）の外周面及びリング９３７の外周面を覆っている。キャップ９３０は、カバー１の前端面１７ａよりも前方に突出している。オスコネクタ９００の基端部９２０は、カバー１の後端面１７ｂよりも後方に突出している。 The cover 1 covers the outer peripheral surface of the connector main portion 910 (or outer cylinder 915) of the male connector 900 and the outer peripheral surface of the ring 937. The cap 930 projects forward from the front end surface 17a of the cover 1. The base end portion 920 of the male connector 900 projects rearward from the rear end surface 17b of the cover 1.
　図４Ｃに示されているように、オスコネクタ９００のオス部材９１１と外筒９１５との間の隙間９１８に、キャップ９３０の封止筒９３２が挿入されている。封止筒９３２内にオス部材９１１が挿入され、封止筒９３２の内周面がオス部材９１１の外周面９１２に液密に密着している。キャップ９３０は、オスコネクタ９００の流路９１９及び隙間９１８を塞いでいる。封止板９３１は、外筒９１５の外径とほぼ同じ直径を有する。タブ９３３及びバンド９３５は、封止板９３１及び外筒９１５よりも半径方向外向きに突出している。バンド９３５は、湾曲しながらカバー１の連結部１１をまたいでコネクタ主部９１０の先端側へ延びている。連結部１１は、バンド９３５と外筒９１５とによって取り囲まれている。 As shown in FIG. 4C, the sealing cylinder 932 of the cap 930 is inserted into the gap 918 between the male member 911 of the male connector 900 and the outer cylinder 915. The male member 911 is inserted into the sealing cylinder 932, and the inner peripheral surface of the sealing cylinder 932 is in close contact with the outer peripheral surface 912 of the male member 911 in a liquid-tight manner. The cap 930 closes the flow path 919 and the gap 918 of the male connector 900. The sealing plate 931 has substantially the same diameter as the outer diameter of the outer cylinder 915. The tab 933 and the band 935 project radially outward from the sealing plate 931 and the outer cylinder 915. The band 935 is curved and extends across the connecting portion 11 of the cover 1 toward the tip end side of the connector main portion 910. The connecting portion 11 is surrounded by a band 935 and an outer cylinder 915.
　図４Ｄに示されているように、タブ９３３及びバンド９３５が、キャップ９３０（封止板９３１）からＹ軸方向に沿って互いに反対向きに突出している。但し、タブ９３３は、カバー本体１５よりも半径方向外側に突出していない。また、バンド９３５は、カバー１の連結部１１に沿った溝１２内に収容されており、カバー本体１５よりも半径方向外側に実質的に突出していない。即ち、半径方向外側に最も大きく突出しているのは、タブ９３３及びバンド９３５ではなく、カバー１（特にそのカバー本体１５）である。 As shown in FIG. 4D, the tab 933 and the band 935 project from the cap 930 (sealing plate 931) in opposite directions along the Y-axis direction. However, the tab 933 does not project radially outward from the cover body 15. Further, the band 935 is housed in the groove 12 along the connecting portion 11 of the cover 1, and does not substantially project outward from the cover main body 15 in the radial direction. That is, it is not the tab 933 and the band 935 but the cover 1 (particularly the cover body 15) that protrudes most outward in the radial direction.
　図４Ａから分かるように、キャップ９３０及びタブ９３３はカバー１で覆われていないので、キャップ９３０をコネクタ主部９１０から取り外す（図３Ａ及び図３Ｂ参照）ことができる。即ち、オスコネクタ９００にカバー１を装着したままで、キャップ９３０を、コネクタ主部９１０に対して、装着（図４Ａ～図４Ｄ参照）及び取り外し（図３Ａ及び図３Ｂ参照）を繰り返し行うことができる。キャップ９３０をコネクタ主部９１０から分離した状態（図３Ａ及び図３Ｂ参照）でオスコネクタ９００をカバー１からＺ軸に沿って後方に引き出せば、カバー１をオスコネクタ９００から分離することができる（図１Ａ及び図１Ｂ参照）。カバー１は、オスコネクタ９００に対して繰り返し着脱可能である。 As can be seen from FIG. 4A, since the cap 930 and the tab 933 are not covered with the cover 1, the cap 930 can be removed from the connector main portion 910 (see FIGS. 3A and 3B). That is, with the cover 1 attached to the male connector 900, the cap 930 can be repeatedly attached (see FIGS. 4A to 4D) and removed (see FIGS. 3A and 3B) to the connector main portion 910. can. The cover 1 can be separated from the male connector 900 by pulling the male connector 900 backward along the Z axis from the cover 1 with the cap 930 separated from the connector main portion 910 (see FIGS. 3A and 3B). 1A and 1B). The cover 1 can be repeatedly attached to and detached from the male connector 900.
　カバー１は例えば以下のように使用されうる。 Cover 1 can be used, for example, as follows.
　カバー１は、オスコネクタ９００に対して任意の時期に装着することができる。例えば、チューブ９０９（図１Ａ参照）を患者に挿入する前に、カバー１をオスコネクタ９００に装着することができる。あるいは、チューブ９０９を患者に挿入した後、即ち、オスコネクタ９００がチューブ９０９とともに患者に留置されている状態で、カバー１をオスコネクタ９００に装着することもできる。キャップ９３０をコネクタ主部９１０から分離した状態（図１Ａ及び図１Ｂ参照）で、カバー１をオスコネクタ９００に装着する（図３Ａ及び図３Ｂ参照）。次いで、キャップ９３０をコネクタ主部９１０に装着する（図４Ａ～図４Ｄ参照）。この状態（カバー装着・キャップ装着状態）で、カバー１は、オスコネクタ９００及びチューブ９０９とともに患者に留置される。オスコネクタ９００及びカバー１は、チューブ９０９を介して患者につながれているが、患者の体表面に固定されることなく、患者からは離間して自由に移動することができる。 The cover 1 can be attached to the male connector 900 at any time. For example, the cover 1 can be attached to the male connector 900 prior to inserting the tube 909 (see FIG. 1A) into the patient. Alternatively, the cover 1 can be attached to the male connector 900 after the tube 909 has been inserted into the patient, i.e., with the male connector 900 indwelling in the patient with the tube 909. The cover 1 is attached to the male connector 900 with the cap 930 separated from the connector main portion 910 (see FIGS. 1A and 1B) (see FIGS. 3A and 3B). Next, the cap 930 is attached to the connector main portion 910 (see FIGS. 4A to 4D). In this state (cover-mounted / cap-mounted state), the cover 1 is placed in the patient together with the male connector 900 and the tube 909. The male connector 900 and the cover 1 are connected to the patient via a tube 909, but can move freely away from the patient without being fixed to the patient's body surface.
　経鼻経管栄養を行う場合、キャップ９３０をコネクタ主部９１０から分離する（図３Ａ及び図３Ｂ参照）。そして、図５Ａに示すように、オスコネクタ９００にメスコネクタ９５０を接続する。図５Ｂは、図５ＡのＹＺ面に沿った断面図である。メスコネクタ９５０は、中空の筒形状を有するメス部材９５１を備える。メス部材９５１の内周面９５２は、メス部材９５１の先端に近づくにしたがって内径が大きくなるメステーパ面である。メス部材９５１の外周面には雄ネジ９５６が設けられている。メス部材９５１は、オス部材９１１と外筒９１５との間の隙間９１８に挿入される。メス部材９５１の雄ネジ９５６は外筒９１５の雌ネジ９１６と螺合する。オス部材９１１はメス部材９５１に挿入される。オス部材９５１の外周面（オステーパ面）９１２とメス部材９５１の内周面（メステーパ面）９５２とが液密にテーパ嵌合する。 When performing nasal tube feeding, the cap 930 is separated from the connector main part 910 (see FIGS. 3A and 3B). Then, as shown in FIG. 5A, the female connector 950 is connected to the male connector 900. FIG. 5B is a cross-sectional view taken along the YZ plane of FIG. 5A. The female connector 950 includes a female member 951 having a hollow tubular shape. The inner peripheral surface 952 of the female member 951 is a female tapered surface whose inner diameter increases as it approaches the tip of the female member 951. A male screw 956 is provided on the outer peripheral surface of the female member 951. The female member 951 is inserted into the gap 918 between the male member 911 and the outer cylinder 915. The male screw 956 of the female member 951 is screwed with the female screw 916 of the outer cylinder 915. The male member 911 is inserted into the female member 951. The outer peripheral surface (male tapered surface) 912 of the male member 951 and the inner peripheral surface (female tapered surface) 952 of the female member 951 are liquid-tightly tapered and fitted.
　メスコネクタ９５０は、更に、メス部材９５１と同軸の接続筒９６１を備える。接続筒９６１から、一対のグリップ部９６３（図５Ａ及び図５Ｂでは１つのグリップ部９６３のみが見える）が半径方向外向きに突出している。グリップ部９６３は、オスコネクタ９００のグリップ部９２３と同様に、作業者がメスコネクタ９５０にその軸周りの回転力を加えるのを容易にする。 The female connector 950 further includes a connection cylinder 961 coaxial with the female member 951. A pair of grip portions 963 (only one grip portion 963 can be seen in FIGS. 5A and 5B) protrudes outward from the connection cylinder 961 in the radial direction. The grip portion 963, like the grip portion 923 of the male connector 900, facilitates the operator to apply a rotational force around the axis of the female connector 950.
　接続筒９６１は、中空の筒形状を有し、メス部材９５１と連通している。柔軟な中空のチューブ９５９が接続筒９６１に挿入され、接着剤等により接続筒９６１に固定されている。チューブ９５９の基端（図示せず）は、液状物を貯留した容器（例えばバッグ）に接続されている。 The connection cylinder 961 has a hollow cylinder shape and communicates with the female member 951. A flexible hollow tube 959 is inserted into the connecting cylinder 961 and fixed to the connecting cylinder 961 with an adhesive or the like. The base end (not shown) of the tube 959 is connected to a container (eg, a bag) containing a liquid material.
　図５Ａ及び図５Ｂの状態で、液状物を、チューブ９５９、メスコネクタ９５０、オスコネクタ９００、チューブ９０９に順に流して患者に投与する経鼻経管栄養を行うことができる。 In the state of FIGS. 5A and 5B, nasal tube feeding can be performed by flowing a liquid substance through a tube 959, a female connector 950, a male connector 900, and a tube 909 in this order and administering the liquid to the patient.
　その後、メスコネクタ９５０をオスコネクタ９００から分離する（図３Ａ及び図３Ｂ参照）。オスコネクタ９００に付着した液状物を拭き取る。キャップ９３０をコネクタ主部９１０に装着する（図４Ａ～図４Ｄ参照）。オスコネクタ９００は、この状態（カバー装着・キャップ装着状態）で、チューブ９０９とともに患者に留置される。 After that, the female connector 950 is separated from the male connector 900 (see FIGS. 3A and 3B). Wipe off the liquid matter adhering to the male connector 900. The cap 930 is attached to the connector main portion 910 (see FIGS. 4A to 4D). The male connector 900 is placed in the patient together with the tube 909 in this state (cover attached / cap attached state).
　以上のように、本実施形態１のカバー１は、カバー１をオスコネクタ９００に装着し且つキャップ９３０をコネクタ主部９１０の先端に装着した状態（カバー装着・キャップ装着状態、図４Ａ～図４Ｄ参照）で、オスコネクタ９００とともに患者に留置される。カバー１は、コネクタ主部９１０を収容可能な収容部１０を備える。オスコネクタ９００において、硬く且つ半径方向外向きに最も大きく突出した部分であるコネクタ主部９１０（または外筒９１５）がカバー１内に収容される。カバー１は、コネクタ主部９１０よりも半径方向外向きに更に突出する。このため、カバー１が装着されたオスコネクタ９００が患者の下敷きになったとしても、オスコネクタ９００が患者に触れる可能性は低い。しかも、カバー１は、クッション性材料からなるので、患者の体重によって適宜変形する。カバー１が、患者がオスコネクタ９００から受ける局所的な圧迫を緩和する。従って、カバー１は、オスコネクタ９００が患者の下敷きになった場合に患者が感じる痛みを低減することができる。オスコネクタ９００が患者の下敷きになった状態が継続しても、患者に褥瘡が発生する可能性は低い。 As described above, in the cover 1 of the present embodiment 1, the cover 1 is attached to the male connector 900 and the cap 930 is attached to the tip of the connector main portion 910 (cover attached / cap attached state, FIGS. 4A to 4D). See), placed in the patient with the male connector 900. The cover 1 includes an accommodating portion 10 capable of accommodating the connector main portion 910. In the male connector 900, the connector main portion 910 (or the outer cylinder 915), which is the hardest and most outwardly protruding portion in the radial direction, is housed in the cover 1. The cover 1 further protrudes outward in the radial direction from the connector main portion 910. Therefore, even if the male connector 900 to which the cover 1 is attached is placed under the patient, it is unlikely that the male connector 900 will touch the patient. Moreover, since the cover 1 is made of a cushioning material, it is appropriately deformed depending on the weight of the patient. Cover 1 relieves the local pressure the patient receives from the male connector 900. Therefore, the cover 1 can reduce the pain felt by the patient when the male connector 900 is placed under the patient. Even if the male connector 900 remains under the patient, it is unlikely that the patient will develop a pressure ulcer.
　カバー１をオスコネクタ９００に装着し且つキャップ９３０をコネクタ主部９１０の先端に装着していない状態（カバー装着・キャップ非装着状態、図３Ａ及び図３Ｂ参照）では、コネクタ主部９１０の先端は、オスコネクタ９００の軸方向（Ｚ軸方向）に、外界に向かって露出される。このため、上述した従来の特許文献１に記載されたカバーと異なり、カバー１をオスコネクタ９００に装着した状態で、オスコネクタ９００に対してキャップ９３０及びメスコネクタ９５０のいずれをも何度でも接続及び分離をすることができる。経鼻経管栄養を行うためには、コネクタ主部９１０からキャップ９３０を取り外し、代わりに、コネクタ主部９１０（オスコネクタ９００）にメスコネクタ９５０を接続する必要がある。本実施形態１のカバー１を用いれば、経鼻経管栄養を行うのに先立ってカバー１をオスコネクタ９００から分離する必要がない。このため、カバー１をオスコネクタ９００から分離することによって発生しうる、カバー１の紛失や、カバー１の再装着忘れ等の問題が生じない。カバー装着・キャップ装着状態（図４Ａ～図４Ｄ参照）で、キャップ９３０がコネクタ主部９１０から脱落したとしても、カバー１をオスコネクタ９００から取り外すことなくキャップ９３０をコネクタ主部９１０に押し込んでしっかりと再装着することができる。 When the cover 1 is attached to the male connector 900 and the cap 930 is not attached to the tip of the connector main portion 910 (with or without the cover attached, see FIGS. 3A and 3B), the tip of the connector main portion 910 is , The male connector 900 is exposed toward the outside in the axial direction (Z-axis direction). Therefore, unlike the cover described in the conventional patent document 1 described above, both the cap 930 and the female connector 950 are connected to the male connector 900 many times with the cover 1 attached to the male connector 900. And can be separated. In order to perform nasal tube feeding, it is necessary to remove the cap 930 from the connector main part 910 and connect the female connector 950 to the connector main part 910 (male connector 900) instead. When the cover 1 of the present embodiment 1 is used, it is not necessary to separate the cover 1 from the male connector 900 prior to performing nasal tube feeding. Therefore, problems such as loss of the cover 1 and forgetting to reattach the cover 1 that may occur when the cover 1 is separated from the male connector 900 do not occur. Even if the cap 930 falls off from the connector main part 910 when the cover is attached and the cap is attached (see FIGS. 4A to 4D), the cap 930 is firmly pushed into the connector main part 910 without removing the cover 1 from the male connector 900. Can be reattached.
　カバー装着・キャップ非装着状態（図３Ａ及び図３Ｂ参照）では、バンド９３５は連結部１１に対して基端部９２０側に配置される。連結部１１は、カバー１がオスコネクタ９００に対して後方に移動するのを規制する。その後、キャップ９３０をコネクタ主部９１０の先端に装着すれば、バンド９３５は湾曲して、連結部１１をまたいでコネクタ主部９１０の先端側へ延びる（図４Ｃ参照）。連結部１１は、コネクタ本体９０１（特にそのコネクタ主部９１０）とバンド９３５とによって取り囲まれる。バンド９３５は、連結部１１（更にはカバー１）がオスコネクタ９００に対してＺ軸方向に移動するのを規制する。このため、カバー装着・キャップ装着状態のオスコネクタ９００（図４Ａ～図４Ｄ参照）を患者に留置したときに、カバー１がオスコネクタ９００から意図せずに分離する可能性は低い。例えば、カバー装着・キャップ装着状態（図４Ａ～図４Ｄ参照）においてチューブ９０９に引張り力が加えられるなどにより、オスコネクタ９００にカバー１から引き出される向き（後ろ向き）の力が加えられても、オスコネクタ９００がカバー１に対して位置ずれし、遂にはオスコネクタ９００がカバー１から抜け出る可能性は低い。このため、カバー１は、オスコネクタ９００が患者の下敷きになった場合に患者が感じる痛みを確実に低減することができる。 In the state where the cover is attached and the cap is not attached (see FIGS. 3A and 3B), the band 935 is arranged on the base end portion 920 side with respect to the connecting portion 11. The connecting portion 11 restricts the cover 1 from moving backward with respect to the male connector 900. After that, when the cap 930 is attached to the tip of the connector main portion 910, the band 935 is curved and extends across the connecting portion 11 toward the tip end side of the connector main portion 910 (see FIG. 4C). The connecting portion 11 is surrounded by the connector main body 901 (particularly the connector main portion 910 thereof) and the band 935. The band 935 restricts the connecting portion 11 (further cover 1) from moving in the Z-axis direction with respect to the male connector 900. Therefore, when the male connector 900 with the cover attached and the cap attached (see FIGS. 4A to 4D) is placed in the patient, it is unlikely that the cover 1 is unintentionally separated from the male connector 900. For example, even if a pulling force is applied to the tube 909 in the cover-attached / cap-attached state (see FIGS. 4A to 4D) and a force is applied to the male connector 900 in the direction of being pulled out from the cover 1 (backward), the male connector 900 is male. It is unlikely that the connector 900 will be misaligned with respect to the cover 1 and eventually the male connector 900 will come out of the cover 1. Therefore, the cover 1 can surely reduce the pain felt by the patient when the male connector 900 is placed under the patient.
　連結部１１は、収容部１０を規定する内周面の一部を構成する。このため、連結部１１は、コネクタ主部９１０をカバー１内に半径方向に位置決めする機能を有する。また、連結部１１は、カバー装着・キャップ装着状態（図４Ａ～図４Ｄ参照）では、バンド９３５に係合することによりカバー１に対してオスコネクタ９００を軸方向に位置決めする機能をも有する。連結部１１がこれら２つの機能を併せ持つので、カバー１の構成が簡単化されている。 The connecting portion 11 constitutes a part of the inner peripheral surface that defines the accommodating portion 10. Therefore, the connecting portion 11 has a function of positioning the connector main portion 910 in the cover 1 in the radial direction. Further, the connecting portion 11 also has a function of axially positioning the male connector 900 with respect to the cover 1 by engaging with the band 935 in the cover-mounted / cap-mounted state (see FIGS. 4A to 4D). Since the connecting portion 11 has these two functions in combination, the configuration of the cover 1 is simplified.
　バンド９３５は、コネクタ本体９０１の、コネクタ主部９１０と基端部９２０との間の位置から導出されている（図１Ａ、図１Ｂ参照）。カバー１をオスコネクタ９００に装着し、キャップ９３０をコネクタ主部９１０の先端に装着すると、バンド９３５は、湾曲して、必然的に連結部１１をまたぐ（図４Ｃ参照）。このため、カバー１はこのようなオスコネクタ９００と好相性である。 The band 935 is derived from the position of the connector main body 901 between the connector main portion 910 and the base end portion 920 (see FIGS. 1A and 1B). When the cover 1 is attached to the male connector 900 and the cap 930 is attached to the tip of the connector main portion 910, the band 935 is curved and inevitably straddles the connecting portion 11 (see FIG. 4C). Therefore, the cover 1 is compatible with such a male connector 900.
　カバー１をオスコネクタ９００に装着したとき、連結部１１はバンド９３５に対して前側（コネクタ主部９１０の先端側）に配置される（図３Ａ及び図３Ｂ参照）。これを実現するために、図１Ａ及び図１Ｂに示されているように、カバー１をオスコネクタ９００に着脱するとき、コネクタ主部９１０は連結部１１より後ろ側のカバー１の開口（後端面１７ｂ側の開口）に挿抜される。カバー１をオスコネクタ９００に着脱するために、カバー１にチューブ９０９を挿抜する必要はない。このため、既に、オスコネクタ９００にチューブ９０９が接続され且つチューブ９０９が患者に挿入されている状態で、カバー１をオスコネクタ９００に対して着脱することが可能である。例えばカバー１に汚れが付着する等した場合、オスコネクタ９００及びチューブ９０９を患者に留置したままで、カバー１のみを新しいものに交換することが可能である。 When the cover 1 is attached to the male connector 900, the connecting portion 11 is arranged on the front side (the tip end side of the connector main portion 910) with respect to the band 935 (see FIGS. 3A and 3B). To achieve this, as shown in FIGS. 1A and 1B, when the cover 1 is attached to and detached from the male connector 900, the connector main portion 910 opens the opening (rear end surface) of the cover 1 behind the connecting portion 11. It is inserted and removed from the opening on the 17b side). In order to attach / detach the cover 1 to / from the male connector 900, it is not necessary to insert / remove the tube 909 into / from the cover 1. Therefore, the cover 1 can be attached to and detached from the male connector 900 while the tube 909 is already connected to the male connector 900 and the tube 909 is inserted into the patient. For example, if the cover 1 becomes dirty, it is possible to replace only the cover 1 with a new one while the male connector 900 and the tube 909 are left in the patient.
　カバー１の外周面１６に、連結部１１に沿った溝１２が形成されている（図１Ａ参照）。カバー装着・キャップ装着状態（図４Ａ～図４Ｄ参照）では、バンド９３５は湾曲されて溝１２内に収容される。このため、湾曲したバンド９３５が、コネクタ主部９１０（または外筒９１５）の円筒状の外周面から半径方向外向きに突出したとしても、バンド９３５がカバー１から半径方向外向きに突出するのを抑えることができる。これは、オスコネクタ９００が患者の下敷きになった場合に患者が湾曲したバンド９３５によって感じる痛みを低減するのに有利である。オスコネクタ９００が患者の下敷きになった状態が継続しても、患者に褥瘡が発生する可能性は低い。溝１２の半径方向に沿った深さは、バンド９３５の厚さ（図４Ｃにおいて、連結部１１に半径方向に対向するバンド９３５の部分の半径方向に沿った寸法）以上であることが好ましい。なお、溝１２内に収容されたバンド９３５は、カバー１から半径方向外向きに突出していないことが好ましいが、わずかに突出していてもよい。バンド９３５は、コネクタ主部９１０と異なり軟質で容易に変形可能であるので、バンド９３５によって患者が感じる痛みは、コネクタ主部９１０による痛みに比べて小さいからである。 A groove 12 along the connecting portion 11 is formed on the outer peripheral surface 16 of the cover 1 (see FIG. 1A). In the cover-mounted / cap-mounted state (see FIGS. 4A to 4D), the band 935 is curved and accommodated in the groove 12. Therefore, even if the curved band 935 protrudes outward in the radial direction from the cylindrical outer peripheral surface of the connector main portion 910 (or the outer cylinder 915), the band 935 protrudes outward in the radial direction from the cover 1. Can be suppressed. This is advantageous in reducing the pain that the patient feels due to the curved band 935 when the male connector 900 is placed under the patient. Even if the male connector 900 remains under the patient, it is unlikely that the patient will develop a pressure ulcer. The depth of the groove 12 along the radial direction is preferably equal to or greater than the thickness of the band 935 (in FIG. 4C, the dimension along the radial direction of the portion of the band 935 that faces the connecting portion 11 in the radial direction). The band 935 housed in the groove 12 preferably does not project outward in the radial direction from the cover 1, but may slightly project. This is because the band 935 is soft and easily deformable unlike the connector main part 910, so that the pain felt by the patient by the band 935 is smaller than the pain caused by the connector main part 910.
　カバー１の後端面１７ｂに、半径方向に沿った凹部１８が設けられている。凹部１８は溝１２に接続され、両者は連続している。カバー装着・キャップ非装着状態のとき、バンド９３５は凹部１８に収容される（図３Ａ及び図３Ｂ参照）。凹部１８は、バンド９３５に係合して、カバー１がオスコネクタ９００に対して軸周りに回転するのを規制する。その後、バンド９３５が凹部１８に収容された状態でキャップ９３０をコネクタ主部９１０に装着すれば、バンド９３５は溝１２に確実に収容される。カバー１をオスコネクタ９００に装着したときにバンド９３５を凹部１８に係合させておけば（図３Ａ及び図３Ｂ参照）、その後、キャップ９３０をコネクタ主部９１０に装着するときに、カバー１をオスコネクタ９００に対して軸周りに位置合わせする必要がない。 The rear end surface 17b of the cover 1 is provided with a recess 18 along the radial direction. The recess 18 is connected to the groove 12, and both are continuous. The band 935 is housed in the recess 18 when the cover is attached and the cap is not attached (see FIGS. 3A and 3B). The recess 18 engages with the band 935 to prevent the cover 1 from rotating about the axis with respect to the male connector 900. After that, if the cap 930 is attached to the connector main portion 910 while the band 935 is housed in the recess 18, the band 935 is securely housed in the groove 12. If the band 935 is engaged with the recess 18 when the cover 1 is attached to the male connector 900 (see FIGS. 3A and 3B), then the cover 1 is attached when the cap 930 is attached to the connector main portion 910. There is no need to align around the axis with respect to the male connector 900.
　カバー装着・キャップ装着状態（図４Ａ～図４Ｄ参照）において、キャップ９３０のタブ９３３はカバー１より半径方向外向きに突出しない。これは、オスコネクタ９００が患者の下敷きになった場合に患者がタブ９３３によって感じる痛みを低減するのに有利である。オスコネクタ９００が患者の下敷きになった状態が継続しても、患者に褥瘡が発生する可能性は低い。 When the cover is attached and the cap is attached (see FIGS. 4A to 4D), the tab 933 of the cap 930 does not protrude outward from the cover 1 in the radial direction. This is advantageous in reducing the pain that the patient feels with the tab 933 when the male connector 900 is placed under the patient. Even if the male connector 900 remains under the patient, it is unlikely that the patient will develop a pressure ulcer.
　カバー装着・キャップ装着状態（図４Ａ～図４Ｄ参照）において、キャップ９３０及び基端部９２０は、カバー１よりも軸方向（Ｚ軸方向）に突出している（図４Ａ～図４Ｃ参照）。しかしながら、オスコネクタ９００が患者の下敷きになった場合に患者がキャップ９３０及び基端部９２０によって痛みを感じる可能性は低い。これは、オスコネクタ９００が患者の下敷きになる場合、通常、オスコネクタ９００の長軸（外寸法が最大になる方向に沿った軸、即ちＺ軸）は水平方向に向き、カバー１がキャップ９３０及び基端部９２０よりも半径方向外向きに突出しているからである。 In the cover-mounted / cap-mounted state (see FIGS. 4A to 4D), the cap 930 and the base end portion 920 project in the axial direction (Z-axis direction) from the cover 1 (see FIGS. 4A to 4C). However, it is unlikely that the patient will feel pain due to the cap 930 and the proximal end 920 if the male connector 900 is placed under the patient. This is because when the male connector 900 is the underlay of the patient, the long axis of the male connector 900 (the axis along the direction in which the outer dimension is maximized, that is, the Z axis) is usually oriented horizontally, and the cover 1 is the cap 930. This is because it protrudes outward in the radial direction from the base end portion 920.
　実施形態１は例示に過ぎず、実施形態１を適宜変更することができる。 The first embodiment is merely an example, and the first embodiment can be changed as appropriate.
　本実施形態１では、カバー１の連結部１１と前端面１７ａとの間に、Ｚ軸方向の段差が形成されていたが（図１Ａ参照）、この段差は本発明では必須ではない。例えば、連結部１１と前端面１７ａとがＸＹ面に平行な共通する一平面に沿っていてもよい。 In the first embodiment, a step in the Z-axis direction is formed between the connecting portion 11 of the cover 1 and the front end surface 17a (see FIG. 1A), but this step is not essential in the present invention. For example, the connecting portion 11 and the front end surface 17a may be along a common plane parallel to the XY plane.
　カバー１が凹部１８を有していなくてもよい。例えば、連結部１１と後端面１７ｂとがＸＹ面に平行な共通する一平面に沿っていてもよい。連結部１１のＺ軸方向寸法は、カバー本体１５のＺ軸方向寸法と同じであってもよい。 The cover 1 does not have to have the recess 18. For example, the connecting portion 11 and the rear end surface 17b may be along a common plane parallel to the XY plane. The Z-axis direction dimension of the connecting portion 11 may be the same as the Z-axis direction dimension of the cover main body 15.
　カバー本体１５のＺ軸方向寸法は適宜変更することができる。カバー本体１５のＺ軸方向寸法は、コネクタ主部９１０（または外筒９１５）のＺ軸方向寸法より大きいことが好ましく、外筒９１５の先端からリング９３７の下端（または段差９０５）までのＺ軸方向寸法以上であることがより好ましい。これは、相対的に硬質の材料からなるコネクタ主部９１０（または外筒９１５）が患者に触れる可能性が低下するからである。従って、カバー１をオスコネクタ９００に装着したとき、コネクタ主部９１０（または外筒９１５）はカバー本体１５の前端面１７ａから前方に向かって突出しないことが好ましく、また、リング９３７（または段差９０５）はカバー本体１５の後端面１７ｂから後方に向かって突出しないことが好ましい。カバー１が基端部９２０の一部または全部を半径方向に覆うように、カバー１をオスコネクタ９００に装着したときにカバー１がリング９３７（または段差９０５）を越えて後方に延びていてもよい。但し、本発明では、カバー１をオスコネクタ９００に装着したとき、コネクタ主部９１０（または外筒９１５）の先端がカバー本体１５の前端面１７ａから前方に向かって突出していてもよい。また、カバー１をオスコネクタ９００に装着したとき、リング９３７（または段差９０５）がカバー本体１５の後端面１７ｂから後方に向かって突出していてもよい。コネクタ主部９１０（または外筒９１５）及び／又はリング９３７（または段差９０５）がカバー本体１５から軸方向に突出していても、カバー本体１５から突出した部分の突出長がわずかであれば、オスコネクタ９００が患者の下敷きになった場合に、当該突出した部分が患者に触れる可能性は低いからである。また、相対的に軟質の材料からなるリング９３７が患者に触れたとしても、患者がリング９３７によって感じる痛みは相対的に小さい。 The dimensions of the cover body 15 in the Z-axis direction can be changed as appropriate. The Z-axis dimension of the cover body 15 is preferably larger than the Z-axis dimension of the connector main portion 910 (or outer cylinder 915), and the Z-axis from the tip of the outer cylinder 915 to the lower end (or step 905) of the ring 937. It is more preferable that the dimension is equal to or larger than the directional dimension. This is because the connector main part 910 (or outer cylinder 915) made of a relatively hard material is less likely to touch the patient. Therefore, when the cover 1 is attached to the male connector 900, it is preferable that the connector main portion 910 (or the outer cylinder 915) does not protrude forward from the front end surface 17a of the cover main body 15, and the ring 937 (or the step 905). ) Preferably does not protrude rearward from the rear end surface 17b of the cover body 15. Even if the cover 1 extends rearward beyond the ring 937 (or step 905) when the cover 1 is attached to the male connector 900 so that the cover 1 covers part or all of the base end 920 in the radial direction. good. However, in the present invention, when the cover 1 is attached to the male connector 900, the tip of the connector main portion 910 (or the outer cylinder 915) may protrude forward from the front end surface 17a of the cover main body 15. Further, when the cover 1 is attached to the male connector 900, the ring 937 (or the step 905) may protrude rearward from the rear end surface 17b of the cover main body 15. Even if the connector main part 910 (or outer cylinder 915) and / or the ring 937 (or step 905) protrudes axially from the cover body 15, if the protruding length of the portion protruding from the cover body 15 is small, the male This is because when the connector 900 is placed under the patient, it is unlikely that the protruding portion will touch the patient. Also, even if the ring 937, which is made of a relatively soft material, touches the patient, the pain that the patient feels due to the ring 937 is relatively small.
　カバー本体１５の外周面１６のＺ軸に沿って見た形状は、円形である必要はなく、例えば後述する実施形態２のカバー本体２１５と同様に略楕円形であってもよい。この場合、実施形態２と同様に、略楕円形の長軸上に連結部１１が配置されることが好ましい。 The shape of the outer peripheral surface 16 of the cover body 15 as viewed along the Z axis does not have to be circular, and may be substantially elliptical as in the case of the cover body 215 of the second embodiment described later, for example. In this case, it is preferable that the connecting portion 11 is arranged on a substantially elliptical long axis as in the second embodiment.
　カバー１が、後述する実施形態２のカバー２が有する貫通孔１９を備えていてもよい。 The cover 1 may include a through hole 19 included in the cover 2 of the second embodiment described later.
　（実施形態２）
　図６は、本発明の実施形態２にかかるカバー２の斜視図である。図７ＡはＹＺ面に沿ったカバー２の断面斜視図、図７ＢはＸＺ面に沿ったカバー２の断面斜視図である。図８Ａはカバー２の前側から見た正面図、図８ＢはＸ軸に沿って見たカバー２の側面図、図８ＣはＹ軸に沿って見たカバー２の側面図である。 (Embodiment 2)
FIG. 6 is a perspective view of the cover 2 according to the second embodiment of the present invention. 7A is a cross-sectional perspective view of the cover 2 along the YZ plane, and FIG. 7B is a cross-sectional perspective view of the cover 2 along the XZ plane. 8A is a front view of the cover 2 seen from the front side, FIG. 8B is a side view of the cover 2 seen along the X axis, and FIG. 8C is a side view of the cover 2 seen along the Y axis.
　図８Ａに示されているように、カバー２は、Ｚ軸に沿って見た形状が略「Ｃ」字の弧形状であるカバー本体２１５と、カバー本体２１５のＸ軸方向に対向する２端面をつなぐ連結部１１とを備える。カバー本体２１５と連結部１１とで囲まれたカバー２の内腔は、コネクタ主部９１０を収容可能な収容部１０である。収容部１０の内周面は円筒面であり、これは、カバー本体２１５と連結部１１とで構成される。収容部１０の当該円筒面の中心軸は、Ｚ軸に平行であり、カバー２の軸（図示せず）を規定する。連結部１１に沿ってＺ軸方向に延びた溝１２が形成されている。連結部１１の外面（半径方向外側を向いた面）が溝１２の底面を構成する。カバー２は、以下に詳述するように、カバー１と形状において異なる。 As shown in FIG. 8A, the cover 2 has a cover main body 215 having a substantially “C” arc shape when viewed along the Z axis, and two end faces of the cover main body 215 facing in the X-axis direction. It is provided with a connecting portion 11 for connecting the above. The lumen of the cover 2 surrounded by the cover main body 215 and the connecting portion 11 is an accommodating portion 10 capable of accommodating the connector main portion 910. The inner peripheral surface of the accommodating portion 10 is a cylindrical surface, which is composed of a cover main body 215 and a connecting portion 11. The central axis of the cylindrical surface of the accommodating portion 10 is parallel to the Z axis and defines the axis of the cover 2 (not shown). A groove 12 extending in the Z-axis direction is formed along the connecting portion 11. The outer surface of the connecting portion 11 (the surface facing outward in the radial direction) constitutes the bottom surface of the groove 12. The cover 2 differs from the cover 1 in shape, as described in detail below.
　カバー２は、カバー本体２１５から後方に向かって延びたスカート２２０を備える。スカート２２０は、ＸＹ面に沿った断面形状が略「Ｕ」字であり、略「Ｕ」字の断面形状は、ＸＹ面においてカバー本体２１５と同じ側（Ｙ軸の矢印とは反対側、以下「連結部１１側」という）に向かって開放されている。スカート２２０のうち、Ｘ軸方向に、互いに離間し且つ対向している部分は、対向部２２１である。一対の対向部２２１間の隙間は、連結部１１側及び後方に向かって開放されており、また、収容部１０、溝１２、及び凹部１８と連通している。一対の対向部２２１の互いに対向する面（対向部２２１の内面）は、ＹＺ面に平行な略平坦面である。一対の対向部２２１間のＸ軸方向に沿った間隔は、オスコネクタ９００の基端部９２０（またはグリップ部９２３、図１Ａ参照）の厚さ方向寸法と略同じであり、また、溝１２及び凹部１８のＸ軸方向内寸法と同じであり、収容部１０を規定する円筒面の内径よりより小さい。このため、収容部１０と対向部２２１との間に、Ｘ軸方向の内寸法の差に依拠した段差面２２５が形成されている（図７Ａ、図７Ｂ参照）。段差面２２５は、ＸＹ面に平行な平坦面である。 The cover 2 includes a skirt 220 extending rearward from the cover body 215. The cross-sectional shape of the skirt 220 along the XY plane is substantially "U", and the cross-sectional shape of the substantially "U" is the same side as the cover body 215 on the XY plane (the side opposite to the arrow on the Y axis, and the following). It is open toward the "connecting portion 11 side"). The portion of the skirt 220 that is separated from each other and faces each other in the X-axis direction is the facing portion 221. The gap between the pair of facing portions 221 is open toward the connecting portion 11 side and the rear, and communicates with the accommodating portion 10, the groove 12, and the recess 18. The surfaces of the pair of facing portions 221 facing each other (inner surface of the facing portions 221) are substantially flat surfaces parallel to the YZ plane. The distance between the pair of facing portions 221 along the X-axis direction is substantially the same as the thickness direction dimension of the base end portion 920 (or grip portion 923, see FIG. 1A) of the male connector 900, and the groove 12 and It is the same as the inner dimension of the recess 18 in the X-axis direction, and is smaller than the inner diameter of the cylindrical surface that defines the accommodating portion 10. Therefore, a stepped surface 225 depending on the difference in internal dimensions in the X-axis direction is formed between the accommodating portion 10 and the facing portion 221 (see FIGS. 7A and 7B). The step surface 225 is a flat surface parallel to the XY surface.
　カバー２は、カバー本体２１５から前方に向かって突出した一対のカラー２３０を更に備える。カラー２３０は、Ｙ軸に沿って延びたリブである。一対のカラー２３０は、Ｘ軸方向に、互いに離間し且つ対向している。一対のカラー２３０間の隙間は、前方に向かって開放されており、また、収容部１０及び溝１２と連通している。 The cover 2 further includes a pair of collars 230 protruding forward from the cover body 215. The collar 230 is a rib extending along the Y axis. The pair of collars 230 are separated from each other and face each other in the X-axis direction. The gap between the pair of collars 230 is open toward the front and communicates with the accommodating portion 10 and the groove 12.
　カバー本体２１５には、カバー本体２１５をＸ軸方向に貫通する貫通孔２１９が形成されている。貫通孔２１９は、収容部１０と外界とを連通させている。 The cover body 215 is formed with a through hole 219 that penetrates the cover body 215 in the X-axis direction. The through hole 219 communicates the accommodating portion 10 with the outside world.
　図８Ａ～図８Ｃに示されているように、カバー２の外観形状は、全体として、Ｙ軸方向に沿った第２外寸法Ｌ２及びＺ軸方向に沿った第３外寸法Ｌ３に比べてＸ軸方向に沿った第１外寸法Ｌ１が小さな扁平形状を有する（Ｌ１＜Ｌ２、Ｌ１＜Ｌ３）。Ｘ軸方向外側に向いた２側面２１６は、いずれもドーム状に膨らんだなめらかな凸曲面である。２側面２１６は、カバー２の軸を含むＹＺ面に対して対称である。 As shown in FIGS. 8A to 8C, the external shape of the cover 2 as a whole is X as compared with the second outer dimension L2 along the Y-axis direction and the third outer dimension L3 along the Z-axis direction. The first outer dimension L1 along the axial direction has a small flat shape (L1 <L2, L1 <L3). The two side surfaces 216 facing outward in the X-axis direction are both smooth convex curved surfaces bulging in a dome shape. The two side surfaces 216 are symmetrical with respect to the YZ plane including the axis of the cover 2.
　カバー２は、実施形態１で説明したオスコネクタ９００（図１Ａ及び図１Ｂ参照）に着脱することができる。スカート２２０（または一対の対向部２２１間）にオスコネクタ９００のコネクタ主部９１０を挿抜することにより、カバー２をオスコネクタ９００に着脱することができる。実施形態１とは異なり、Ｘ軸に沿って見たとき、カバー２の軸に対して連結部１１側において、カバー２の軸に対して斜めにコネクタ主部９１０を挿抜することができる。一対の対向部２２１間の間隔は、コネクタ主部９１０（外筒９１５）の外径より小さい。しかしながら、カバー２はクッション性材料からなるので、コネクタ主部９１０がスカート２２０を通過するとき、一対の対向部２２１間の間隔が拡大するように、スカート２２０は容易に変形する。 The cover 2 can be attached to and detached from the male connector 900 (see FIGS. 1A and 1B) described in the first embodiment. The cover 2 can be attached to and detached from the male connector 900 by inserting and removing the connector main portion 910 of the male connector 900 into the skirt 220 (or between the pair of facing portions 221). Unlike the first embodiment, when viewed along the X axis, the connector main portion 910 can be inserted and removed diagonally with respect to the axis of the cover 2 on the connecting portion 11 side with respect to the axis of the cover 2. The distance between the pair of facing portions 221 is smaller than the outer diameter of the connector main portion 910 (outer cylinder 915). However, since the cover 2 is made of a cushioning material, the skirt 220 is easily deformed so that the distance between the pair of facing portions 221 increases as the connector main portion 910 passes through the skirt 220.
　図９Ａは、オスコネクタ９００に装着したカバー２の斜視図である。キャップ９３０はコネクタ主部９１０に装着されていない（カバー装着・キャップ非装着状態）。図９ＢはＹＺ面に沿った図９Ａの断面図、図９ＣはＸＺ面に沿った図９Ａの断面図である。カバー２の収容部１０（図７Ａ、図７Ｂ、図８Ａ参照）内にコネクタ主部９１０（外筒９１５）及びリング９３７が収容されている。連結部１１は、コネクタ主部９１０（外筒９１５）に半径方向に対向している。オスコネクタ９００の段差９０５（図１Ａ参照）は、カバー２の段差面２２５（図７Ｂ、図７Ｃ参照）とＺ軸方向に対向（または当接）している。カバー２に設けられた貫通孔２１９を介してコネクタ主部９１０（外筒９１５）が外界に露出されている。オスコネクタ９００のバンド９３５は、カバー２の連結部１１に対して基端部９２０側（後ろ側）に位置し、凹部１８に収容され、連結部１１に対して軸方向に対向（または当接）している。バンド９３５は、連結部１１よりも半径方向外向きに突出するようにＹ軸に沿って延びている。オスコネクタ９００の基端部９２０は、スカート２２０内（または一対の対向部２２１間）に配置され、スカート２２０によって実質的に覆われている。基端部９２０のグリップ面９２４（図１Ａ参照）にスカート２２０（または対向部２２１）がＸ軸方向に対向している。基端部９２０から導出されたチューブ９０９が、スカート２２０（または一対の対向部２２１間）からＺ軸に沿って導出されている。一対のカラー２３０がコネクタ主部９１０（外筒９１５）の先端よりも前方に向かって突出している。但し、実施形態１と同様に、コネクタ主部９１０の先端は、カバー２で覆われることなく、軸方向に外界に向かって（前方に向かって）露出されている。Ｘ軸方向に沿って見たとき、コネクタ本体９０１は、カバー２の外周縁からはみ出すことなく、カバー２内に収容されている。図９Ａ～図９Ｃの状態（カバー装着・キャップ非装着状態）から、キャップ９３０をコネクタ主部９１０に装着することができる。 FIG. 9A is a perspective view of the cover 2 attached to the male connector 900. The cap 930 is not attached to the connector main portion 910 (with the cover attached and the cap not attached). 9B is a cross-sectional view of FIG. 9A along the YZ plane, and FIG. 9C is a cross-sectional view of FIG. 9A along the XZ plane. The connector main portion 910 (outer cylinder 915) and the ring 937 are accommodated in the accommodating portion 10 (see FIGS. 7A, 7B, 8A) of the cover 2. The connecting portion 11 faces the connector main portion 910 (outer cylinder 915) in the radial direction. The step 905 (see FIG. 1A) of the male connector 900 faces (or abuts) the step surface 225 (see FIGS. 7B and 7C) of the cover 2 in the Z-axis direction. The connector main portion 910 (outer cylinder 915) is exposed to the outside world through the through hole 219 provided in the cover 2. The band 935 of the male connector 900 is located on the base end portion 920 side (rear side) with respect to the connecting portion 11 of the cover 2, is housed in the recess 18, and is axially opposed (or abutted) to the connecting portion 11. )are doing. The band 935 extends along the Y axis so as to project outward in the radial direction from the connecting portion 11. The base end portion 920 of the male connector 900 is located within the skirt 220 (or between the pair of facing portions 221) and is substantially covered by the skirt 220. The skirt 220 (or the facing portion 221) faces the grip surface 924 (see FIG. 1A) of the base end portion 920 in the X-axis direction. The tube 909 derived from the base end portion 920 is derived from the skirt 220 (or between the pair of facing portions 221) along the Z axis. A pair of collars 230 project forward from the tip of the connector main portion 910 (outer cylinder 915). However, as in the first embodiment, the tip of the connector main portion 910 is not covered with the cover 2 and is exposed toward the outside world (forward) in the axial direction. When viewed along the X-axis direction, the connector main body 901 is housed in the cover 2 without protruding from the outer peripheral edge of the cover 2. The cap 930 can be attached to the connector main portion 910 from the state of FIGS. 9A to 9C (the cover is attached and the cap is not attached).
　図１０Ａは、カバー２をオスコネクタ９００に装着し、キャップ９３０をコネクタ主部９１０に装着した状態（カバー装着・キャップ装着状態）を上方から見た斜視図である。図１０Ｂは、図１０ＡのＹＺ面に沿った断面図である。 FIG. 10A is a perspective view of a state in which the cover 2 is attached to the male connector 900 and the cap 930 is attached to the connector main portion 910 (cover attached / cap attached state). FIG. 10B is a cross-sectional view taken along the YZ plane of FIG. 10A.
　図１０Ｂに示されているように、バンド９３５は、カバー２の連結部１１に沿った溝１２内に収容され、湾曲しながらカバー２の連結部１１をまたいでコネクタ主部９１０の先端側へ延びている。連結部１１は、バンド９３５と外筒９１５とによって取り囲まれている。半径方向外向きに最も大きく突出しているのは、タブ９３３及びバンド９３５ではなく、カバー２である。Ｘ軸に沿って見たとき、キャップ９３０の一部を除いて、オスコネクタ９００はカバー２の外周縁からはみ出していない。 As shown in FIG. 10B, the band 935 is housed in the groove 12 along the connecting portion 11 of the cover 2, and while bending, straddles the connecting portion 11 of the cover 2 and moves toward the tip end side of the connector main portion 910. It is extended. The connecting portion 11 is surrounded by a band 935 and an outer cylinder 915. The largest radial outward protrusion is the cover 2, not the tab 933 and band 935. When viewed along the X-axis, the male connector 900 does not protrude from the outer peripheral edge of the cover 2, except for a part of the cap 930.
　実施形態１と同様に、キャップ９３０をコネクタ主部９１０から取り外す（図９Ａ～図９Ｃ参照）ことができる。即ち、オスコネクタ９００にカバー２を装着したままで、キャップ９３０を、コネクタ主部９１０に対して、装着（図１０Ａ及び図１０Ｂ参照）及び取り外し（図９Ａ～図９Ｃ参照）を繰り返し行うことができる。キャップ９３０をコネクタ主部９１０から分離した状態（図９Ａ～図９Ｃ参照）でオスコネクタ９００をスカート２２０（または一対の対向部２２１間）から引き出せば、カバー２をオスコネクタ９００から分離することができる。カバー２は、オスコネクタ９００に対して繰り返し着脱可能である。 Similar to the first embodiment, the cap 930 can be removed from the connector main portion 910 (see FIGS. 9A to 9C). That is, with the cover 2 attached to the male connector 900, the cap 930 can be repeatedly attached (see FIGS. 10A and 10B) and removed (see FIGS. 9A to 9C) to the connector main portion 910. can. If the male connector 900 is pulled out from the skirt 220 (or between the pair of facing portions 221) with the cap 930 separated from the connector main portion 910 (see FIGS. 9A to 9C), the cover 2 can be separated from the male connector 900. can. The cover 2 can be repeatedly attached to and detached from the male connector 900.
　カバー２は、実施形態１のカバー１と同様に使用することができる。カバー２は、カバー２をオスコネクタ９００に装着し且つキャップ９３０をコネクタ主部９１０に装着した状態（カバー装着・キャップ装着状態、図１０Ａ及び図１０Ｂ参照）で、患者に留置される。経鼻経管栄養を行う場合、キャップ９３０をコネクタ主部９１０から分離する（図９Ａ～図９Ｃ参照）。そして、図示を省略するが、オスコネクタ９００にメスコネクタ９５０（図５Ａ及び図５Ｂ参照）を接続する。経鼻経管栄養を終了後、メスコネクタ９５０をオスコネクタ９００から分離し（図９Ａ～図９Ｃ参照）、代わりにキャップ９３０をコネクタ主部９１０に装着する（図１０Ａ及び図１０Ｂ参照）。オスコネクタ９００は、この状態（カバー装着・キャップ装着状態）で、チューブ９０９とともに患者に留置される。 The cover 2 can be used in the same manner as the cover 1 of the first embodiment. The cover 2 is placed in the patient with the cover 2 attached to the male connector 900 and the cap 930 attached to the connector main portion 910 (cover attached / cap attached state, see FIGS. 10A and 10B). For nasal tube feeding, the cap 930 is separated from the connector main part 910 (see FIGS. 9A-9C). Then, although not shown, a female connector 950 (see FIGS. 5A and 5B) is connected to the male connector 900. After nasal tube feeding is complete, the female connector 950 is separated from the male connector 900 (see FIGS. 9A-9C) and a cap 930 is instead attached to the connector main 910 (see FIGS. 10A and 10B). The male connector 900 is placed in the patient together with the tube 909 in this state (cover attached / cap attached state).
　本実施形態２のカバー２は、収容部１０を構成するカバー本体２１５から後方に向かって延びたスカート２２０を備える。オスコネクタ９００は、スカート２２０（または一対の対向部２２１間）を介してカバー２に挿抜される。より詳細には、オスコネクタ９００は、コネクタ主部９１０及び基端部９２０の順にスカート２２０に挿入される。その後、オスコネクタ９００は、基端部９２０及びコネクタ主部９１０の順にスカート２２０から引き出される。 The cover 2 of the second embodiment includes a skirt 220 extending rearward from the cover main body 215 constituting the accommodating portion 10. The male connector 900 is inserted into and removed from the cover 2 via the skirt 220 (or between the pair of facing portions 221). More specifically, the male connector 900 is inserted into the skirt 220 in the order of the connector main portion 910 and the proximal end portion 920. After that, the male connector 900 is pulled out from the skirt 220 in the order of the base end portion 920 and the connector main portion 910.
　カバー２をオスコネクタ９００に装着したとき、スカート２２０は基端部９２０に半径方向に対向する。このため、カバー２が装着されたオスコネクタ９００が患者の下敷きになった場合に、基端部９２０が患者に触れる可能性は実施形態１より更に低い。スカート２２０は、カバー２が装着されたオスコネクタ９００が患者の下敷きになった場合に、基端部９２０が患者に与える痛みを低減するのに有利である。 When the cover 2 is attached to the male connector 900, the skirt 220 faces the base end portion 920 in the radial direction. Therefore, when the male connector 900 to which the cover 2 is attached is placed under the patient, the possibility that the proximal end portion 920 touches the patient is further lower than that in the first embodiment. The skirt 220 is advantageous in reducing the pain that the proximal end 920 inflicts on the patient when the male connector 900 to which the cover 2 is attached is placed under the patient.
　カバー２は、更に、カバー本体２１５から前方に向かって延びた一対のカラー２３０を備える。カバー装着・キャップ装着状態（図１０Ａ及び図１０Ｂ参照）において、一対のカラー２３０は、キャップ９３０をその間に挟んで、キャップ９３０に半径方向に対向する。このため、カバー２が装着されたオスコネクタ９００が患者の下敷きになった場合に、キャップ９３０が患者に触れる可能性は実施形態１より更に低い。カラー２３０は、カバー２が装着されたオスコネクタ９００が患者の下敷きになった場合に、キャップ９３０が患者に与える痛みを低減するのに有利である。 The cover 2 further includes a pair of collars 230 extending forward from the cover body 215. In the cover-mounted / cap-mounted state (see FIGS. 10A and 10B), the pair of collars 230 have the cap 930 sandwiched between them and face the cap 930 in the radial direction. Therefore, when the male connector 900 to which the cover 2 is attached is placed under the patient, the possibility that the cap 930 touches the patient is further lower than that of the first embodiment. The collar 230 is advantageous in reducing the pain that the cap 930 inflicts on the patient when the male connector 900 to which the cover 2 is attached is placed under the patient.
　このように、本実施形態２のカバー２は、カバー本体２１５に加えて、スカート２２０及びカラー２３０を備える。このため、カバー２は、オスコネクタ９００が患者の下敷きになった場合に患者が感じる痛みを更に低減することができる。オスコネクタ９００が患者の下敷きになった状態が継続しても、患者に褥瘡が発生する可能性は更に低下する。 As described above, the cover 2 of the second embodiment includes the skirt 220 and the collar 230 in addition to the cover main body 215. Therefore, the cover 2 can further reduce the pain felt by the patient when the male connector 900 is placed under the patient. Even if the male connector 900 remains under the patient, the patient is less likely to develop a pressure ulcer.
　一対のカラー２３０間の間隔は、前方に向かって大きくなる。このため、作業者は、カバー装着・キャップ装着状態（図１０Ａ及び図１０Ｂ参照）において、キャップ９３０（封止板９３１）及びタブ９３３に容易にアクセスすることができる。コネクタ主部９１０からキャップ９３０を取り外す作業が容易である。 The distance between the pair of collars 230 increases toward the front. Therefore, the operator can easily access the cap 930 (sealing plate 931) and the tab 933 in the cover-mounted / cap-mounted state (see FIGS. 10A and 10B). The work of removing the cap 930 from the connector main portion 910 is easy.
　カバー装着・キャップ装着状態（図１０Ａ及び図１０Ｂ参照）において、タブ９３３はカバー２の前端面１７ａからＺ軸方向に離間する（図１０Ｂ参照）。このため、前端面１７ａからカラー２３０が前方に向かって突出しているにもかかわらず、キャップ９３０をコネクタ主部９１０から分離するためにタブ９３３に指を掛けるのが容易である。 In the cover-mounted / cap-mounted state (see FIGS. 10A and 10B), the tab 933 is separated from the front end surface 17a of the cover 2 in the Z-axis direction (see FIG. 10B). Therefore, even though the collar 230 projects forward from the front end surface 17a, it is easy to put a finger on the tab 933 to separate the cap 930 from the connector main portion 910.
　実施形態１と同様に、カバー２をオスコネクタ９００に装着し且つキャップ９３０をコネクタ主部９１０の先端に装着していない状態（カバー装着・キャップ非装着状態、図９Ａ～図９Ｃ参照）では、コネクタ主部９１０の先端は、オスコネクタ９００の軸方向（Ｚ軸方向）に、外界に向かって露出される。このため、カバー２をオスコネクタ９００に装着した状態で、オスコネクタ９００に対してキャップ９３０及びメスコネクタ９５０のいずれをも何度でも接続及び分離をすることができる。 Similar to the first embodiment, in the state where the cover 2 is attached to the male connector 900 and the cap 930 is not attached to the tip of the connector main portion 910 (the cover is attached / the cap is not attached, see FIGS. 9A to 9C). The tip of the connector main portion 910 is exposed toward the outside world in the axial direction (Z-axis direction) of the male connector 900. Therefore, with the cover 2 attached to the male connector 900, either the cap 930 or the female connector 950 can be connected and separated from the male connector 900 as many times as necessary.
　実施形態１と同様に、カバー装着・キャップ非装着状態（図９Ａ～図９Ｃ参照）では、バンド９３５は連結部１１に対して基端部９２０側に配置される。その後、キャップ９３０をコネクタ主部９１０の先端に装着すれば、バンド９３５は湾曲して、連結部１１をまたいでコネクタ主部９１０の先端側へ延びる（図１０Ｂ参照）。連結部１１は、コネクタ本体９０１（特にそのコネクタ主部９１０）とバンド９３５とによって取り囲まれる。カバー装着・キャップ装着状態のオスコネクタ９００（図１０Ａ及び図１０Ｂ参照）を患者に留置したときに、カバー２がオスコネクタ９００から意図せずに分離する可能性は低い。 Similar to the first embodiment, in the cover-attached / cap-non-attached state (see FIGS. 9A to 9C), the band 935 is arranged on the base end portion 920 side with respect to the connecting portion 11. After that, when the cap 930 is attached to the tip of the connector main portion 910, the band 935 is curved and extends across the connecting portion 11 toward the tip end side of the connector main portion 910 (see FIG. 10B). The connecting portion 11 is surrounded by the connector main body 901 (particularly the connector main portion 910 thereof) and the band 935. When the male connector 900 with the cover attached and the cap attached (see FIGS. 10A and 10B) is placed in the patient, it is unlikely that the cover 2 is unintentionally separated from the male connector 900.
　カバー２は、収容部１０とスカート２２０（またはその対向部２２１）との間に、段差面２２５（係合構造）を備える。段差面２２５は、カバー２をオスコネクタ９００に装着したとき、オスコネクタ９００の段差９０５にＺ軸方向に係合する。段差９０５は、カバー装着・キャップ非装着状態（図９Ａ～図９Ｃ参照）において、カバー２がオスコネクタ９００に対して前方へ移動するのを阻止するように機能する。このため、例えば、経鼻経管栄養を行うためにキャップ９３０をコネクタ主部９１０から分離したとき、カバー２がオスコネクタ９００から意図せずに脱落するのを防止できる。また、オスコネクタ９００にメスコネクタ９５０を接続して経鼻経管栄養を行っている状態において、カバー２がメスコネクタ９５０側へ移動するのを防止できる。 The cover 2 is provided with a stepped surface 225 (engagement structure) between the accommodating portion 10 and the skirt 220 (or its facing portion 221). When the cover 2 is attached to the male connector 900, the step surface 225 engages with the step 905 of the male connector 900 in the Z-axis direction. The step 905 functions to prevent the cover 2 from moving forward with respect to the male connector 900 when the cover is attached and the cap is not attached (see FIGS. 9A to 9C). Therefore, for example, when the cap 930 is separated from the connector main portion 910 for nasal tube feeding, it is possible to prevent the cover 2 from being unintentionally dropped from the male connector 900. Further, it is possible to prevent the cover 2 from moving to the female connector 950 side in a state where the female connector 950 is connected to the male connector 900 and nasal tube feeding is performed.
　段差面２２５は、収容部１０とスカート２２０との間のＸ軸方向の内寸法の差に依拠して形成されている。この段差面２２５が、オスコネクタ９００が係合する係合構造として機能する。このため、係合構造を特別に設ける必要がない。これは、カバー２の構造を簡単化するのに有利である。 The stepped surface 225 is formed depending on the difference in internal dimensions in the X-axis direction between the accommodating portion 10 and the skirt 220. The stepped surface 225 functions as an engaging structure with which the male connector 900 is engaged. Therefore, it is not necessary to provide a special engagement structure. This is advantageous for simplifying the structure of the cover 2.
　カバー２は、Ｙ軸方向に沿った第２外寸法Ｌ２及びＺ軸方向に沿った第３外寸法Ｌ３よりＸ軸方向に沿った第１外寸法Ｌ１が小さな扁平形状を有している（図８Ａ～図８Ｃ参照）。従って、カバー装着・キャップ装着状態（図１０Ａ及び図１０Ｂ参照）において、カバー２（図１０Ａ及び図１０Ｂ参照）は、寝具等の上で、相対的に小さな外寸法を有するカバー２のＸ軸方向が上下方向になるように向く可能性が高い。 The cover 2 has a flat shape in which the first outer dimension L1 along the X-axis direction is smaller than the second outer dimension L2 along the Y-axis direction and the third outer dimension L3 along the Z-axis direction (FIG. 8A to 8C). Therefore, in the cover-mounted / cap-mounted state (see FIGS. 10A and 10B), the cover 2 (see FIGS. 10A and 10B) is placed on the bedding or the like in the X-axis direction of the cover 2 having a relatively small outer dimension. Is likely to face up and down.
　カバー２は、カバー２のＹ軸が基端部９２０の長軸（即ち、オスコネクタ９００のＹ軸）と平行になるようにオスコネクタ９００に装着される。このため、寝具等の上で、カバー２のＸ軸が上下方向に向いたとき、基端部９２０（グリップ部９２３）の長軸は水平方向と平行になる。これは、基端部９２０（グリップ部９２３）の長軸が上下方向と平行になる場合に比べて、患者の下敷きになったオスコネクタ９００の基端部９２０が患者に与える痛みを低減するのに有利である。 The cover 2 is attached to the male connector 900 so that the Y-axis of the cover 2 is parallel to the long axis of the base end portion 920 (that is, the Y-axis of the male connector 900). Therefore, when the X-axis of the cover 2 faces in the vertical direction on the bedding or the like, the long axis of the base end portion 920 (grip portion 923) becomes parallel to the horizontal direction. This reduces the pain that the base end 920 of the male connector 900 under the patient gives to the patient as compared to the case where the long axis of the base end 920 (grip portion 923) is parallel to the vertical direction. It is advantageous to.
　カバー２のスカート２２０は、Ｘ軸方向に対向する一対の対向部２２１を備える。カバー２をオスコネクタ９００に装着したとき、一対の対向部２２１の間に基端部９２０が配置される。このため、寝具等の上で、カバー２のＸ軸が上下方向に向いたとき、基端部９２０に対して上下に対向部２２１が配置される。これは、カバー２が装着されたオスコネクタ９００が患者の下敷きになった場合に、基端部９２０が患者に与える痛みを低減するのに有利である。 The skirt 220 of the cover 2 includes a pair of facing portions 221 facing each other in the X-axis direction. When the cover 2 is attached to the male connector 900, the base end portion 920 is arranged between the pair of facing portions 221. Therefore, when the X-axis of the cover 2 faces in the vertical direction on the bedding or the like, the facing portions 221 are arranged vertically with respect to the base end portion 920. This is advantageous in reducing the pain that the proximal end 920 inflicts on the patient when the male connector 900 to which the cover 2 is attached is placed under the patient.
　カバー２は、Ｘ軸方向に対向した一対のカラー２３０を備える。カバー装着・キャップ装着状態（図１０Ａ及び図１０Ｂ参照）において、一対のカラー２３０の間にキャップ９３０が配置される。このため、寝具等の上で、カバー２のＸ軸が上下方向に向いたとき、キャップ９３０に対して上下にカラー２３０が配置される。これは、カバー２が装着されたオスコネクタ９００が患者の下敷きになった場合に、キャップ９３０が患者に与える痛みを低減するのに有利である。 The cover 2 includes a pair of collars 230 facing each other in the X-axis direction. In the cover-mounted / cap-mounted state (see FIGS. 10A and 10B), the cap 930 is arranged between the pair of collars 230. Therefore, when the X-axis of the cover 2 faces in the vertical direction on the bedding or the like, the collar 230 is arranged vertically with respect to the cap 930. This is advantageous in reducing the pain that the cap 930 inflicts on the patient when the male connector 900 to which the cover 2 is attached is placed under the patient.
　連結部１１は、Ｘ軸方向に延び、Ｘ軸方向に対向するカバー本体２１５の端面をつなぐ（図８Ａ参照）。このため、カバー装着・キャップ装着状態のオスコネクタ９００（図１０Ａ及び図１０Ｂ参照）が、カバー２のＸ軸が上下方向に向いて患者の下敷きになった場合、バンド９３５は水平方向に突出する。これは、バンド９３５が上下方向に突出する場合に比べて、バンド９３５が患者に与える痛みを低減するのに有利である。同様に、封止板９３１に設けられたタブ９３３も、水平方向に突出する。これは、タブ９３３が患者に与える痛みを低減するのに有利である。 The connecting portion 11 extends in the X-axis direction and connects the end faces of the cover main body 215 facing the X-axis direction (see FIG. 8A). Therefore, when the male connector 900 (see FIGS. 10A and 10B) with the cover attached and the cap attached is placed under the patient with the X-axis of the cover 2 facing in the vertical direction, the band 935 protrudes in the horizontal direction. .. This is advantageous in reducing the pain that the band 935 inflicts on the patient as compared to the case where the band 935 projects vertically. Similarly, the tab 933 provided on the sealing plate 931 also projects horizontally. This is advantageous in reducing the pain that the tab 933 inflicts on the patient.
　オスコネクタ９００に装着されたカバー２をＸ軸に沿って見たとき、コネクタ本体９０１はカバー２の外周縁からはみ出さない（図１０Ｂ参照）。このため、カバー装着・キャップ装着状態のオスコネクタ９００（図１０Ａ及び図１０Ｂ参照）が、カバー２のＸ軸方向を上下方向にして患者の下敷きになった場合に、硬質のコネクタ本体９０１が患者に触れる可能性は更に低減する。これは、オスコネクタ９００が患者の下敷きになった場合にコネクタ本体９０１が患者に与える痛みを低減するのに有利である。 When the cover 2 attached to the male connector 900 is viewed along the X axis, the connector body 901 does not protrude from the outer peripheral edge of the cover 2 (see FIG. 10B). Therefore, when the male connector 900 (see FIGS. 10A and 10B) with the cover attached and the cap attached is placed under the patient with the X-axis direction of the cover 2 facing up and down, the rigid connector body 901 becomes the patient. The possibility of touching is further reduced. This is advantageous in reducing the pain that the connector body 901 inflicts on the patient when the male connector 900 is placed under the patient.
　貫通孔１９を介して内腔１０に収容されたオスコネクタ９００（特にコネクタ主部９１０）を視認することができる（図９Ａ、図９Ｃ、図１０Ａ参照）。コネクタ主部９１０（外筒９１５）の外周面に、オスコネクタ９００またはチューブ９０９の寸法等に関する情報が記載されている場合がある。このような場合に、カバー２をオスコネクタ９００に装着した状態で、貫通孔１９を介して当該情報を視認することができる。なお、貫通孔１９の数は２つである必要はなく、１つであってもよい。本発明では、貫通孔１９を省略してもよい。 The male connector 900 (particularly the connector main portion 910) housed in the lumen 10 can be visually recognized through the through hole 19 (see FIGS. 9A, 9C, and 10A). Information regarding the dimensions of the male connector 900 or the tube 909 may be described on the outer peripheral surface of the connector main portion 910 (outer cylinder 915). In such a case, the information can be visually recognized through the through hole 19 with the cover 2 attached to the male connector 900. The number of through holes 19 does not have to be two, but may be one. In the present invention, the through hole 19 may be omitted.
　実施形態２は例示に過ぎず、実施形態２を適宜変更することができる。 The second embodiment is merely an example, and the second embodiment can be changed as appropriate.
　例えば、オスコネクタ９００に装着されたカバー２をＸ軸に沿って見たとき、基端部の一部がスカート２２０の外周縁からはみ出してもよい。カバー装着・キャップ装着状態のオスコネクタ９００（図１０Ａ及び図１０Ｂ参照）をＸ軸に沿って見たとき、カラー２３０によってキャップ９３０が見えなくてもよい。 For example, when the cover 2 attached to the male connector 900 is viewed along the X axis, a part of the base end portion may protrude from the outer peripheral edge of the skirt 220. When the male connector 900 (see FIGS. 10A and 10B) with the cover attached and the cap attached is viewed along the X axis, the cap 930 may not be visible due to the collar 230.
　オスコネクタ９００に係合することができるカバー２の係合構造は、オスコネクタ９００の段差９０５（図１Ａ参照）に係合する段差面２２５（図６Ｂ、図６Ｃ参照）に限定されない。例えば、係合構造は、オスコネクタ９００の基端部９２０（特にそのグリップ部９２３）の後端にＺ軸方向に係合してもよい。 The engagement structure of the cover 2 that can be engaged with the male connector 900 is not limited to the step surface 225 (see FIGS. 6B and 6C) that engages with the step 905 (see FIG. 1A) of the male connector 900. For example, the engagement structure may engage with the rear end of the base end portion 920 (particularly its grip portion 923) of the male connector 900 in the Z-axis direction.
　カバーが係合構造（段差面２２５）を備えていなくてもよい。例えば、スカート２２０内に、収容部１０と連続する円筒面が形成されていてもよい。 The cover does not have to have an engaging structure (step surface 225). For example, a cylindrical surface continuous with the accommodating portion 10 may be formed in the skirt 220.
　カバー２が、スカート２２０及びカラー２３０のうちのいずれか一方を備えていなくてもよい。カバー２がカラー２３０を備えていない場合、カバー装着・キャップ非装着状態のオスコネクタ９００をＸ軸及び／又はＹ軸に沿って見たとき、コネクタ主部の一部がカバーで覆われることなく、外界に向かって露出されてもよい。 The cover 2 does not have to have either the skirt 220 or the collar 230. When the cover 2 does not have the collar 230, when the male connector 900 with the cover attached and the cap not attached is viewed along the X-axis and / or the Y-axis, a part of the connector main part is not covered with the cover. , May be exposed towards the outside world.
　カバー２の外観形状は、任意に変更できる。 The external shape of the cover 2 can be changed arbitrarily.
　例えば、カバーの外観形状は、Ｘ軸方向に沿った第１外寸法Ｌ１が相対的に小さな扁平形状に限定されない。例えば、Ｘ軸方向に沿った第１外寸法Ｌ１とＹ軸方向に沿った第２外寸法Ｌ２とが略同じであってもよい。具体的には、カバー２の外観形状は、円柱、多角柱（例えば四角柱、六角柱）、立方体、球、ラグビーボール形などであってもよい。このような形状のカバーは、寝具等の上で、そのＸ軸方向が常に上下方向に向くとは限らない。しかしながら、カバーの半径方向寸法（厚み）を大きくすることにより、カバーの向きにかかわらず、コネクタ９００が患者の下敷きになった場合に患者が感じる痛みを低減することが可能である。 For example, the external shape of the cover is not limited to a flat shape in which the first outer dimension L1 along the X-axis direction is relatively small. For example, the first outer dimension L1 along the X-axis direction and the second outer dimension L2 along the Y-axis direction may be substantially the same. Specifically, the external shape of the cover 2 may be a cylinder, a polygonal column (for example, a square column, a hexagonal column), a cube, a sphere, a rugby ball shape, or the like. A cover having such a shape does not always face up and down in the X-axis direction on bedding or the like. However, by increasing the radial dimension (thickness) of the cover, it is possible to reduce the pain felt by the patient when the connector 900 is placed under the patient, regardless of the orientation of the cover.
　カバー２のＸ軸に沿って見た形状も、卵形（または楕円形）、矩形、菱形、六角形、八角形、陸上競技のトラック形などであってもよい。一般に、コネクタ９００の長軸方向は、その軸方向であることから、カバー２は、その軸方向（Ｚ軸方向）に長軸を有することが好ましい。 The shape seen along the X axis of the cover 2 may also be oval (or oval), rectangular, rhombic, hexagonal, octagonal, track and field track shape, or the like. In general, since the major axis direction of the connector 900 is the axial direction thereof, it is preferable that the cover 2 has a major axis in the axial direction (Z axis direction).
　オスコネクタ９００にメスコネクタ９５０を接続したとき、カラー２３０がメスコネクタ９５０と半径方向に対向するように、カラー２３０が前方に向かって更に長く延びていてもよい。 When the female connector 950 is connected to the male connector 900, the collar 230 may extend further forward so that the collar 230 faces the female connector 950 in the radial direction.
　カラー２３０が、カバー本体２１５の前端面１７ａに沿って略「Ｕ」字状（または略「Ｃ」字状）に連続していてもよい。 The collar 230 may be continuous in a substantially "U" shape (or a substantially "C" shape) along the front end surface 17a of the cover body 215.
　一対のカラー２３０間の隙間は、軸方向において一定であってもよく、あるいは、前方に向かって小さくなっていてもよい。カラー２３０が、その先端に向かって、カバーの軸に近づくように湾曲していてもよい。例えば、カバー装着・キャップ非装着状態のオスコネクタ９００をカバーの軸に沿って見たとき、コネクタ主部９１０の一部又は全部がカラー２３０で覆われてもよい。この場合であっても、カバーはクッション性材料からなるので、カラー２３０を半径方向外向きに変形させてコネクタ主部９１０の先端を軸方向に外界に向かって露出させることができる。従って、上記実施形態２と同様に、カバーをオスコネクタ９００に装着した状態で、オスコネクタ９００に対してキャップ３００及びメスコネクタ９５０を接続及び分離することが可能である。 The gap between the pair of collars 230 may be constant in the axial direction or may be smaller toward the front. The collar 230 may be curved towards its tip towards the axis of the cover. For example, when the male connector 900 with the cover attached and the cap not attached is viewed along the axis of the cover, a part or all of the connector main portion 910 may be covered with the collar 230. Even in this case, since the cover is made of a cushioning material, the collar 230 can be deformed outward in the radial direction to expose the tip of the connector main portion 910 axially toward the outside world. Therefore, similarly to the second embodiment, the cap 300 and the female connector 950 can be connected to and separated from the male connector 900 with the cover attached to the male connector 900.
　本実施形態２は、上記を除いて実施形態１と同じである。実施形態１の説明が、本実施形態２にも適用される。 The second embodiment is the same as the first embodiment except for the above. The description of the first embodiment also applies to the second embodiment.
　（実施形態３）
　図１１Ａは、本発明の実施形態３にかかるカバー３の斜視図である。図１１Ｂは、ＹＺ面に沿ったカバー３の断面斜視図である。図１２Ａは、カバーの別の方向から見た斜視図である。図１２Ｂは、カバー３の前側から見た正面図である。図１３は、オスコネクタ９００に装着したカバー３の斜視図である。キャップ９３０はコネクタ主部９１０に装着されていない（カバー装着・キャップ非装着状態）。図１４Ａは、カバー３をオスコネクタ９００に装着し、キャップ９３０をコネクタ主部９１０に装着した状態（カバー装着・キャップ装着状態）を示した斜視図である。図１４Ｂは、図１４ＡのＹＺ面に沿った断面図である。 (Embodiment 3)
FIG. 11A is a perspective view of the cover 3 according to the third embodiment of the present invention. FIG. 11B is a cross-sectional perspective view of the cover 3 along the YZ plane. FIG. 12A is a perspective view of the cover as viewed from another direction. FIG. 12B is a front view seen from the front side of the cover 3. FIG. 13 is a perspective view of the cover 3 attached to the male connector 900. The cap 930 is not attached to the connector main portion 910 (with the cover attached and the cap not attached). FIG. 14A is a perspective view showing a state in which the cover 3 is attached to the male connector 900 and the cap 930 is attached to the connector main portion 910 (cover attached / cap attached state). 14B is a cross-sectional view taken along the YZ plane of FIG. 14A.
　本実施形態３では、カバー３のスカート２２０に切り欠き３２３が設けられている。切り欠き３２３は、Ｘ軸に沿って見たとき、対向部２２１の外周縁に凹曲線を形成する（図１４Ｂ参照）。切り欠き３２３は、Ｘ軸に沿って見たとき、カバー３の軸（これは、円筒状の収容部１０の軸と一致する）に対して連結部１１側であって、連結部１１より後方に配置されている。対向部２２１の外周縁から収容部１０までの距離は、切り欠き３２３の位置において、ほぼ最小となる。 In the third embodiment, the skirt 220 of the cover 3 is provided with a notch 323. The notch 323 forms a concave curve on the outer peripheral edge of the facing portion 221 when viewed along the X-axis (see FIG. 14B). The notch 323 is on the connecting portion 11 side with respect to the axis of the cover 3 (which coincides with the axis of the cylindrical accommodating portion 10) when viewed along the X axis, and is behind the connecting portion 11. Is located in. The distance from the outer peripheral edge of the facing portion 221 to the accommodating portion 10 is almost the minimum at the position of the notch 323.
　カバー３は、実施形態２のカバー２と同様に、実施形態１で説明したオスコネクタ９００（図１Ａ及び図１Ｂ参照）に着脱することができる。着脱は、スカート２２０（または一対の対向部２２１間）にオスコネクタ９００（特にコネクタ主部９１０）を挿抜することにより行う。 The cover 3 can be attached to and detached from the male connector 900 (see FIGS. 1A and 1B) described in the first embodiment, similarly to the cover 2 of the second embodiment. Detachment is performed by inserting and removing the male connector 900 (particularly the connector main portion 910) into the skirt 220 (or between the pair of facing portions 221).
　上述した実施形態２のカバー２は、Ｘ軸に沿って見たとき、カバー２の軸（これは、円筒形状を有する収容部１０の中心軸によって規定される）に対して対称であった（図８Ｂ参照）。このため、Ｘ軸に沿って見ただけでは、カバー２のどちら側（図８Ｂの右側または左側）に連結部１１があるのかが不明である。軸周りにカバー２をわずかに回転させて、連結部１１を確認する必要がある。 The cover 2 of embodiment 2 described above was symmetrical with respect to the axis of the cover 2 (which is defined by the central axis of the accommodating portion 10 having a cylindrical shape) when viewed along the X axis (as defined by the central axis of the accommodating portion 10 having a cylindrical shape). See FIG. 8B). Therefore, it is unclear on which side of the cover 2 (the right side or the left side of FIG. 8B) the connecting portion 11 is located just by looking along the X axis. It is necessary to rotate the cover 2 slightly around the axis to check the connecting portion 11.
　これに対して、本実施形態３のカバー３は、Ｘ軸に沿って見たとき、カバー３の軸に対して非対称である。連結部１１は、カバー３の軸に対して切り欠き３２３と同じ側に配置されている。従って、カバー３にオスコネクタ９００を挿入する場合、例えば、右手でオスコネクタ９００を持ち、左手でカバー３を、切り欠き３２３がオスコネクタ９００側（右側）を向くように持てばよい。カバー３からオスコネクタ９００を引き出す場合には、例えば左手でカバー３を、切り欠き３２３を右側に向けて持ち、右手で切り欠き３２３を介して基端部９２０を掴めばよい。このように、切り欠き３２３は、Ｘ軸に沿ってカバー３を見るだけで、カバー３に対してオスコネクタ９００を挿抜する位置を認識するのを可能にする。 On the other hand, the cover 3 of the present embodiment 3 is asymmetric with respect to the axis of the cover 3 when viewed along the X axis. The connecting portion 11 is arranged on the same side as the notch 323 with respect to the axis of the cover 3. Therefore, when inserting the male connector 900 into the cover 3, for example, the male connector 900 may be held by the right hand, the cover 3 may be held by the left hand, and the notch 323 may be held so as to face the male connector 900 side (right side). When pulling out the male connector 900 from the cover 3, for example, the cover 3 may be held with the left hand, the notch 323 may be held toward the right side, and the base end portion 920 may be grasped through the notch 323 with the right hand. In this way, the notch 323 makes it possible to recognize the position where the male connector 900 is inserted / removed with respect to the cover 3 only by looking at the cover 3 along the X axis.
　カバー３にオスコネクタ９００を挿入する場合、切り欠き３２３によって形成された対向部２２１の外周縁の凹曲線に、コネクタ主部９１０を押し当てることができる。一対の対向部２２１間の間隔より大径のコネクタ主部９１０が対向部２２１の外周縁に沿って滑ることなく、コネクタ主部９１０を対向部２２１に位置決めすることができる。このため、オスコネクタ９００に対するカバー３の装着性が向上する。 When the male connector 900 is inserted into the cover 3, the connector main portion 910 can be pressed against the concave curve of the outer peripheral edge of the facing portion 221 formed by the notch 323. The connector main portion 910 having a diameter larger than the distance between the pair of facing portions 221 can be positioned on the facing portion 221 without slipping along the outer peripheral edge of the facing portion 221. Therefore, the mountability of the cover 3 to the male connector 900 is improved.
　更に、カバー３をオスコネクタ９００に装着する場合、切り欠き３２３の位置からコネクタ主部９１０をカバー３に挿入すれば、コネクタ主部９１０を収容部１０に最短距離で到達させることができる。同様に、カバー３をオスコネクタ９００から分離する場合、コネクタ主部９１０を切り欠き３２３に向かって移動させれば、コネクタ主部９１０を収容部１０から最短距離で引き出すことができる。このように、オスコネクタ９００に対してカバー３を着脱するときの目印として切り欠き３２３を利用することにより、一対の対向部２２１間を、これより大径のコネクタ主部９１０が通過する距離が短くなる。このため、オスコネクタ９００に対するカバー３の着脱性が向上する。 Further, when the cover 3 is attached to the male connector 900, if the connector main portion 910 is inserted into the cover 3 from the position of the notch 323, the connector main portion 910 can be reached to the accommodating portion 10 in the shortest distance. Similarly, when the cover 3 is separated from the male connector 900, the connector main portion 910 can be pulled out from the accommodating portion 10 at the shortest distance by moving the connector main portion 910 toward the notch 323. In this way, by using the notch 323 as a mark when the cover 3 is attached to and detached from the male connector 900, the distance through which the connector main portion 910 having a larger diameter passes between the pair of facing portions 221 can be increased. It gets shorter. Therefore, the detachability of the cover 3 with respect to the male connector 900 is improved.
　図１２Ａに示されているように、カバー３は、その外面に平坦面３２７を備える。平坦面３２７は、Ｙ軸方向において、連結部１１（または溝１２）とは反対側の位置に設けられている。平坦面３２７は、ＸＺ面に平行な平面である。それぞれが凸曲面である一対の側面２１６は、平坦面３２７を介して連結されている。平坦面３２７は、カバー３を金型を用いて成形して製造する場合に、カバー３の製造を容易にするのに有利である。その理由は以下の通りである。 As shown in FIG. 12A, the cover 3 is provided with a flat surface 327 on its outer surface. The flat surface 327 is provided at a position opposite to the connecting portion 11 (or the groove 12) in the Y-axis direction. The flat surface 327 is a plane parallel to the XZ surface. The pair of side surfaces 216, each of which is a convex curved surface, are connected via a flat surface 327. The flat surface 327 is advantageous for facilitating the manufacture of the cover 3 when the cover 3 is molded by using a mold. The reason is as follows.
　本発明のカバーは、金型内で樹脂材料を射出成形することにより製造することができる。当該金型は、複数の金型ピースを組み合わせて構成される。この場合、金型ピースの位置ずれや、隣り合う金型ピース間に隙間が生じることがある。これらは、成形後のカバーにバリを生じさせうる。本実施形態３では、隣り合う金型ピースの突き合わせ面（一般にパーティング面と呼ばれる）が平坦面３２７上に配置されるように、金型を設計することができる。これにより、上記の位置ずれや隙間が生じにくい金型の製造が容易になり、カバーにバリが発生するのを抑えることができる。 The cover of the present invention can be manufactured by injection molding a resin material in a mold. The mold is composed of a combination of a plurality of mold pieces. In this case, the position of the mold pieces may shift or a gap may occur between adjacent mold pieces. These can cause burrs on the molded cover. In the third embodiment, the mold can be designed so that the butt surface (generally referred to as a parting surface) of adjacent mold pieces is arranged on the flat surface 327. This facilitates the manufacture of the mold in which the above-mentioned misalignment and gaps are unlikely to occur, and it is possible to suppress the generation of burrs on the cover.
　本実施形態３の平坦面３２７は、ＸＺ面に平行であるが、これに限定されない。一般に、平坦面３２７は、カバー３を成形する金型の分割方向（例えばＸ軸方向、即ち連結部１１の延び方向）に平行であることが好ましい。 The flat surface 327 of the third embodiment is parallel to the XZ surface, but is not limited thereto. Generally, the flat surface 327 is preferably parallel to the dividing direction of the mold for forming the cover 3 (for example, the X-axis direction, that is, the extending direction of the connecting portion 11).
　カバー３が、実施形態２のカバー２が有していた貫通孔１９を備えていてもよい。 The cover 3 may include the through hole 19 that the cover 2 of the second embodiment has.
　本実施形態３は、上記を除いて実施形態１，２と同じである。実施形態１，２の説明が、本実施形態３にも適用される。 The third embodiment is the same as the first and second embodiments except for the above. The description of the first and second embodiments also applies to the third embodiment.
　（実施形態４）
　図１５は、本発明の実施形態４にかかるカバー４の斜視図である。図１６Ａは、カバー４の別の方向から見た斜視図である。図１６Ｂは、カバー４の前側から見た正面図である。 (Embodiment 4)
FIG. 15 is a perspective view of the cover 4 according to the fourth embodiment of the present invention. FIG. 16A is a perspective view of the cover 4 as viewed from another direction. FIG. 16B is a front view seen from the front side of the cover 4.
　本実施形態４のカバー４は、その外観形状において実施形態３のカバー３と異なる。図１６Ａをカバー３を示す図１２Ａと比較すれば容易に理解できるように、カバー４では、平坦面４２７（カバー３の平坦面３２７に相当する）のＸ軸方向寸法が縮小されている。凸曲面である一対の側面２１６が連結部１１（または溝１２）とは反対側に延び、細い平坦面４２７に接続されている。このため、図１６Ｂを図８Ａ及び図１２Ｂと比較すれば分かるように、連結部１１（または溝１２）とは反対側のカバー４の外面は、尖った角部がない、実質的になめらかな凸曲面である。カバー４は、カバー４が装着されたオスコネクタ９００が患者の下敷きになった場合に、患者が感じる痛みを低減するのに有利である。 The cover 4 of the present embodiment 4 is different from the cover 3 of the third embodiment in its appearance shape. As can be easily understood by comparing FIG. 16A with FIG. 12A showing the cover 3, in the cover 4, the X-axis direction dimension of the flat surface 427 (corresponding to the flat surface 327 of the cover 3) is reduced. A pair of side surfaces 216, which are convex curved surfaces, extend to the opposite side of the connecting portion 11 (or groove 12) and are connected to a thin flat surface 427. Therefore, as can be seen by comparing FIG. 16B with FIGS. 8A and 12B, the outer surface of the cover 4 on the opposite side of the connecting portion 11 (or groove 12) is substantially smooth with no sharp corners. It is a convex curved surface. The cover 4 is advantageous for reducing the pain felt by the patient when the male connector 900 to which the cover 4 is attached is placed under the patient.
　カバー４が、実施形態２のカバー２が有していた貫通孔１９を備えていてもよい。 The cover 4 may include the through hole 19 that the cover 2 of the second embodiment has.
　本実施形態４は、上記を除いて実施形態３と同じである。実施形態３の説明、及び、実施形態３に適用される実施形態１，２の説明が、本実施形態４にも適用される。 The present embodiment 4 is the same as the third embodiment except for the above. The description of the third embodiment and the description of the first and second embodiments applied to the third embodiment also apply to the fourth embodiment.
　上記の実施形態１～４は例示に過ぎない。本発明は、上記の実施形態１～４に限定されず、適宜変更することができる。 The above embodiments 1 to 4 are merely examples. The present invention is not limited to the above-described first to fourth embodiments, and can be appropriately modified.
　カバーに設けられる連結部１１の数は、１つに限定されない。例えば、カバーが、その軸に対して対称に配置された２つの連結部１１を有していてもよい。この場合、カバーが、その軸に対して２回回転対称（軸周りに１８０度回転させると回転前と一致する形状）であってもよい。カバーが複数の連結部１１を備える場合、オスコネクタ９００にカバーを装着するときに、オスコネクタ９００に対するカバーの軸周りの位置合わせが簡単化される。 The number of connecting portions 11 provided on the cover is not limited to one. For example, the cover may have two connecting portions 11 arranged symmetrically with respect to its axis. In this case, the cover may be rotationally symmetric twice with respect to the axis (a shape that matches the shape before rotation when rotated 180 degrees around the axis). When the cover includes a plurality of connecting portions 11, when the cover is attached to the male connector 900, the alignment of the cover around the axis with respect to the male connector 900 is simplified.
　本発明のカバーの外面には、実施形態２の貫通孔（第１孔）１９（図６、図７Ａ、図７Ｂ参照）以外に、孔（第２孔）が設けられていてもよい。図１７Ａ及び図１７Ｂは、実施形態１のカバー１の外面に多数の孔１１９が設けられたカバー１'を示す。孔１１９は、Ｚ軸方向に沿ってカバー１'（特にそのカバー本体１５）を貫通している。Ｚ軸に沿って見たとき、孔１１９は、それぞれが正六角形の平面視形状を有し、カバー本体１５にハニカム状に配置されている。本発明のカバーの外面に設けることができる孔は、孔１１９に限定されない。図１７Ａ及び図１７Ｂでは孔１１９はカバー１'を貫通した貫通孔であるが、本発明のカバーに設けられうる孔はカバーを貫通していない非貫通孔（いわゆる盲孔）であってもよい。非貫通孔の深さは任意であり、孔の開口径に比べて孔の深さが深くてもよく、または浅くてもよい。孔の平面視形状は、正六角形に限定されず、例えば円形や任意の多角形（四角形、八角形など）であってもよい。孔の配置は、ハニカム配置に限定されない。孔は、カバー本体１５以外のカバーの外面（例えば連結部１１）に設けられていてもよい。孔は、Ｚ軸に略垂直な端面（１７ａまたは１７ｂ）以外のカバーの外面（例えば、図１Ａのカバー１の外周面１６）に設けられていてもよい。孔は、Ｚ軸方向以外の任意の方向（例えば半径方向）に沿って延びていてもよい。孔の数は任意である。複数の孔がカバーに均等に配置されている必要はなく、カバーの特定の領域のみに配置されていていもよい。このような孔をカバーの外面に設けることは、カバーの外寸法や外観形状を実質的に変更することなく、カバーの軽量化及びカバーのクッション性の調整をするのに有利である。実施形態２～４のカバー２～４の外面に、上記と同様の孔を設けてもよい。 The outer surface of the cover of the present invention may be provided with a hole (second hole) in addition to the through hole (first hole) 19 (see FIGS. 6, 7A and 7B) of the second embodiment. 17A and 17B show a cover 1'in which a large number of holes 119 are provided on the outer surface of the cover 1 of the first embodiment. The hole 119 penetrates the cover 1'(especially the cover body 15) along the Z-axis direction. When viewed along the Z axis, the holes 119 each have a regular hexagonal plan view shape and are arranged in a honeycomb shape on the cover main body 15. The holes that can be provided on the outer surface of the cover of the present invention are not limited to the holes 119. In FIGS. 17A and 17B, the hole 119 is a through hole penetrating the cover 1', but the hole that can be provided in the cover of the present invention may be a non-through hole (so-called blind hole) that does not penetrate the cover. .. The depth of the non-through hole is arbitrary, and the depth of the hole may be deeper or shallower than the opening diameter of the hole. The plan view shape of the hole is not limited to a regular hexagon, and may be, for example, a circle or an arbitrary polygon (quadrangle, octagon, etc.). The arrangement of the holes is not limited to the honeycomb arrangement. The hole may be provided on the outer surface (for example, the connecting portion 11) of the cover other than the cover main body 15. The holes may be provided on the outer surface of the cover (for example, the outer peripheral surface 16 of the cover 1 in FIG. 1A) other than the end surface (17a or 17b) substantially perpendicular to the Z axis. The hole may extend along any direction other than the Z-axis direction (eg, radial direction). The number of holes is arbitrary. The plurality of holes need not be evenly distributed on the cover, but may be arranged only in a specific area of the cover. Providing such a hole on the outer surface of the cover is advantageous for reducing the weight of the cover and adjusting the cushioning property of the cover without substantially changing the outer dimensions and the external shape of the cover. The same holes as described above may be provided on the outer surface of the covers 2 to 4 of the embodiments 2 to 4.
　カバーが装着されるオスコネクタ９００の構成は、上記の実施形態に限定されない。オスコネクタに応じてカバーを適宜変更してもよい。例えば、キャップ９３０において、タブ９３３は、封止板９３１から半径方向に突出するのではなく、封止板９３１からキャップ９３０の軸に沿って突出していてもよい。キャップ９３０にタブ９３３が設けられていなくてもよい。キャップ９３０の封止板９３１は、外筒９１５の外径より大きな外径を有していてもよい。キャップ９３０をコネクタ主部９１０に装着したとき（図４Ｃ、図１０Ｂ、図１４Ｂ参照）、オス部材９１１の流路９１９に挿入されて、オス部材９１１の内周面に液密に密着する突起（封止突起）が、キャップ９３０に設けられていてもよい。キャップ９３０は、この封止突起を備える場合、封止筒９３２を更に備えていてもよく、あるいは、備えていなくてもよい。バンド９３５はコネクタ本体９０１から導出されていなくてもよい。例えば、バンド９３５の基端にリング９３７と同様のリング（環状体）を設け、当該リングにチューブ９０９を挿入してもよい。この場合、リングはチューブ９０９の長手方向に沿って自由に移動できてもよく、あるいは、移動できなくてもよい。グリップ部９２３は、略四角柱形状を有している必要はなく、例えば円筒形状の接続筒９２１から長軸方向（Ｙ軸方向）に沿って互いに反対向きに延びた一対の薄板であってもよい。あるいは、グリップ部９２３が、接続筒９２１を取り囲む円筒形状を有していてもよい。基端部９２０が、グリップ部９２３を備えずに、単に円筒形状の接続筒９２１のみで構成されていてもよい。コネクタ本体９０１の全体が硬質材料で構成されている必要はない。例えば、メスコネクタ９５０との接続に直接関与しない部分（例えば基端部９２０）が、比較的変形が容易な軟質材料で構成されていてもよい。 The configuration of the male connector 900 to which the cover is attached is not limited to the above embodiment. The cover may be changed as appropriate depending on the male connector. For example, in the cap 930, the tab 933 may protrude from the sealing plate 931 along the axis of the cap 930 instead of protruding from the sealing plate 931 in the radial direction. The cap 930 may not be provided with a tab 933. The sealing plate 931 of the cap 930 may have an outer diameter larger than the outer diameter of the outer cylinder 915. When the cap 930 is attached to the connector main portion 910 (see FIGS. 4C, 10B, 14B), a protrusion (see FIG. 4C, FIG. 10B, FIG. 14B) that is inserted into the flow path 919 of the male member 911 and closely adheres to the inner peripheral surface of the male member 911. A sealing protrusion) may be provided on the cap 930. When the cap 930 is provided with the sealing protrusion, the cap 930 may or may not be further provided with the sealing cylinder 932. The band 935 does not have to be derived from the connector body 901. For example, a ring (annular body) similar to the ring 937 may be provided at the base end of the band 935, and the tube 909 may be inserted into the ring. In this case, the ring may or may not move freely along the longitudinal direction of the tube 909. The grip portion 923 does not have to have a substantially quadrangular prism shape, and may be, for example, a pair of thin plates extending in opposite directions along the long axis direction (Y axis direction) from the cylindrical connection cylinder 921. good. Alternatively, the grip portion 923 may have a cylindrical shape surrounding the connection cylinder 921. The base end portion 920 may be composed of only a cylindrical connection cylinder 921 without providing a grip portion 923. The entire connector body 901 does not have to be made of a rigid material. For example, a portion that is not directly involved in the connection with the female connector 950 (for example, the base end portion 920) may be made of a soft material that is relatively easily deformed.
　上記の実施形態のカバーは、経鼻経管栄養に使用されるオスコネクタ９００に着脱されたが、本発明はこれに限定されない。本発明のカバーが適用されるオスコネクタは、患者に留置されるチューブに設けられる任意のオスコネクタであってもよい。具体的には、当該オスコネクタは、例えば経鼻チューブ以外の経管栄養に使用されるチューブに設けられるオスコネクタであってもよい。あるいは、患者に留置されるチューブに接続されるチューブ（延長チューブ）の上流側端に設けられるオスコネクタであってもよい。本発明のカバーは、患者に留置されないオスコネクタに適用されてもよい。 The cover of the above embodiment is attached to and detached from the male connector 900 used for nasal tube feeding, but the present invention is not limited thereto. The male connector to which the cover of the present invention is applied may be any male connector provided on the tube indwelled in the patient. Specifically, the male connector may be, for example, a male connector provided in a tube used for tube feeding other than a nasal tube. Alternatively, it may be a male connector provided at the upstream end of a tube (extension tube) connected to the tube indwelled in the patient. The covers of the present invention may be applied to male connectors that are not placed in the patient.
　本発明は、医療分野において広範囲に利用することができる。中でも、本発明は、患者に留置されるチューブの上流側端に設けられるオスコネクタに着脱可能に装着されるカバーとして利用することができる。 The present invention can be widely used in the medical field. Above all, the present invention can be used as a cover that is detachably attached to a male connector provided at the upstream end of a tube placed in a patient.
１，１'，２，３，４　カバー
１０　収容部
１１　連結部
１２　溝
１５　カバー本体
１８　凹部
１１９　孔
２１６　カバーの側面
２１９　貫通孔
２２０　スカート
２２１　対向部
２２５　段差面（係合構造）
２３０　カラー
３２３　切り欠き
３２７，４２７　平坦面
９００　オスコネクタ
９０１　コネクタ本体
９０５　コネクタの段差
９０９　チューブ
９１０　コネクタ主部
９２０　基端部
９２３　グリップ部
９２４　グリップ面（基端部の長軸に沿った面）
９３０　キャップ
９３１　封止板
９３３　タブ
９３５　バンド
Ｌ１　第１外寸法
Ｌ２　第２外寸法
Ｌ３　第３外寸法 1,1', 2,3,4 Cover 10 Accommodating part 11 Connecting part 12 Groove 15 Cover body 18 Recessed part 119 Hole 216 Cover side surface 219 Through hole 220 Skirt 221 Opposing part 225 Stepped surface (engagement structure)
230 Color 323 Notch 327,427 Flat surface 900 Male connector 901 Connector body 905 Connector step 909 Tube 910 Connector main part 920 Base end 923 Grip part 924 Grip surface (face along the long axis of the base end)
930 Cap 931 Sealing plate 933 Tab 935 Band L1 First outer dimension L2 Second outer dimension L3 Third outer dimension

Claims (21)

  1. 　一端に円筒形状のコネクタ主部を有し、他端に柔軟なチューブが導出された基端部を有するコネクタ本体と、前記コネクタ主部の先端に着脱可能なキャップと、前記コネクタ本体又は前記チューブとキャップとをつなぐバンドとを備えたオスコネクタに着脱することができるオスコネクタ用カバーであって、
    　前記カバーは、クッション性を有する材料からなり、
    　前記カバーは、前記コネクタ主部を収容可能な収容部と、前記カバーを前記オスコネクタに装着したとき前記コネクタ主部の周方向に沿って延びるように設けられた連結部とを備え、
    　前記カバーを前記オスコネクタに装着し且つ前記キャップを前記コネクタ主部に装着していないとき、前記コネクタ主部の先端を前記オスコネクタの軸方向に外界に向かって露出させることができ、且つ、前記バンドは前記連結部に対して前記基端部側に配置されることを特徴とするオスコネクタ用カバー。     A connector main body having a cylindrical connector main portion at one end and a base end portion from which a flexible tube is led out at the other end, a removable cap at the tip of the connector main portion, and the connector main body or the tube. A cover for a male connector that can be attached to and detached from a male connector that has a band that connects the cap and the cap.
    The cover is made of a material having cushioning properties.
    The cover includes an accommodating portion capable of accommodating the connector main portion and a connecting portion provided so as to extend along the circumferential direction of the connector main portion when the cover is attached to the male connector.
    When the cover is attached to the male connector and the cap is not attached to the connector main portion, the tip of the connector main portion can be exposed toward the outside in the axial direction of the male connector, and A cover for a male connector, wherein the band is arranged on the base end side with respect to the connecting portion.
  2. 　前記カバーは、前記カバーの軸に沿って見た形状が略弧形状であるカバー本体を更に備え、
    　前記連結部は、前記カバー本体の対向する端面をつなぎ、
    　前記カバー本体と前記連結部とが前記収容部を構成する請求項１に記載のオスコネクタ用カバー。     The cover further comprises a cover body having a substantially arcuate shape as viewed along the axis of the cover.
    The connecting portion connects the facing end faces of the cover body, and the connecting portion connects the facing ends thereof.
    The cover for a male connector according to claim 1, wherein the cover main body and the connecting portion constitute the accommodating portion.
  3. 　前記バンドは、前記コネクタ本体から導出されている請求項１又は２に記載のオスコネクタ用カバー。 The band is a cover for a male connector according to claim 1 or 2, which is derived from the connector body.
  4. 　前記カバーを前記オスコネクタに装着し且つ前記キャップを前記コネクタ主部に装着したとき、前記バンドが前記連結部をまたいで前記コネクタ主部の先端側へ延びる請求項１～３のいずれか一項に記載のオスコネクタ用カバー。 One of claims 1 to 3, wherein when the cover is attached to the male connector and the cap is attached to the connector main portion, the band extends across the connecting portion toward the tip end side of the connector main portion. Cover for male connector described in.
  5. 　前記カバーは、前記連結部の外面を底面とする溝を更に備え、
    　前記カバーを前記オスコネクタに装着し且つ前記キャップを前記コネクタ主部に装着したとき、前記バンドは前記溝に収容される請求項１～４のいずれか一項に記載のオスコネクタ用カバー。     The cover is further provided with a groove having an outer surface of the connecting portion as a bottom surface.
    The cover for a male connector according to any one of claims 1 to 4, wherein when the cover is attached to the male connector and the cap is attached to the connector main portion, the band is accommodated in the groove.
  6. 　前記カバーは、半径方向に沿った凹部を更に備え、
    　前記カバーを前記オスコネクタに装着し且つ前記キャップを前記コネクタ主部に装着していないとき、前記カバーが前記オスコネクタに対して回転しないように前記凹部が前記バンドに係合する請求項１～５のいずれか一項に記載のオスコネクタ用カバー。     The cover further comprises a concave portion along the radial direction.
    The recess 1 to engage the band so that the cover does not rotate with respect to the male connector when the cover is attached to the male connector and the cap is not attached to the connector main portion. The cover for a male connector according to any one of 5.
  7. 　前記キャップは、前記コネクタ主部の先端を覆うことができる円形の封止板と、前記封止板から半径方向外向きに突出したタブとを備え、
    　前記バンドは、前記封止板の前記タブとは反対側の位置に接続されており、
    　前記カバーを前記オスコネクタに装着し且つ前記キャップを前記コネクタ主部に装着したとき、前記タブが前記カバーより半径方向外向きに突出しない請求項１～６のいずれか一項に記載のオスコネクタ用カバー。     The cap comprises a circular encapsulating plate capable of covering the tip of the connector main portion and a tab protruding radially outward from the encapsulating plate.
    The band is connected to a position of the sealing plate opposite to the tab.
    The male connector according to any one of claims 1 to 6, wherein the tab does not protrude radially outward from the cover when the cover is attached to the male connector and the cap is attached to the connector main portion. Cover for.
  8. 　前記カバーは、前記カバーの軸に平行な第３方向に沿った第３外寸法と、前記第３方向に垂直である第１方向に沿った第１外寸法と、前記第１方向及び前記第３方向に垂直な第２方向に沿った第２外寸法とを有し、
    　前記カバーは、前記第２外寸法及び前記第３外寸法より前記第１外寸法が小さな扁平形状を有する請求項１～７のいずれか一項に記載のオスコネクタ用カバー。     The cover has a third outer dimension along a third direction parallel to the axis of the cover, a first outer dimension along a first direction perpendicular to the third direction, and the first direction and the first. It has a second outer dimension along a second direction perpendicular to the three directions,
    The cover for a male connector according to any one of claims 1 to 7, wherein the cover has a flat shape in which the first outer dimension is smaller than the second outer dimension and the third outer dimension.
  9. 　前記基端部は、前記オスコネクタの軸に垂直な長軸を有し、
    　前記カバーは、前記カバーの前記第２方向を前記基端部の前記長軸に平行にして前記オスコネクタに装着することができる請求項８に記載のオスコネクタ用カバー。     The proximal end has a long axis perpendicular to the axis of the male connector.
    The cover for a male connector according to claim 8, wherein the cover can be attached to the male connector with the second direction of the cover parallel to the long axis of the base end portion.
  10. 　前記連結部は、前記第１方向に平行に延びる請求項８又は９に記載のオスコネクタ用カバー。 The cover for a male connector according to claim 8 or 9, wherein the connecting portion extends in parallel with the first direction.
  11. 　前記カバーは、前記カバーを前記オスコネクタに装着したとき前記基端部に半径方向に対向するように構成されたスカートを更に備える請求項１～１０のいずれか一項に記載のオスコネクタ用カバー。 The cover for a male connector according to any one of claims 1 to 10, further comprising a skirt configured to face the base end portion in the radial direction when the cover is attached to the male connector. ..
  12. 　前記カバーは、前記カバーの軸に平行な第３方向に沿った第３外寸法と、前記第３方向に垂直である第１方向に沿った第１外寸法と、前記第１方向及び前記第３方向に垂直な第２方向に沿った第２外寸法とを有し、
    　前記カバーは、前記第２外寸法及び前記第３外寸法より前記第１外寸法が小さな扁平形状を有し、
    　前記スカートは、前記第１方向に離間して対向する一対の対向部を備え、
    　前記カバーを前記オスコネクタに装着したとき、前記一対の対向部の間に前記基端部が配置される請求項１１に記載のオスコネクタ用カバー。     The cover has a third outer dimension along a third direction parallel to the axis of the cover, a first outer dimension along a first direction perpendicular to the third direction, and the first direction and the first. It has a second outer dimension along a second direction perpendicular to the three directions,
    The cover has a flat shape in which the first outer dimension is smaller than the second outer dimension and the third outer dimension.
    The skirt comprises a pair of facing portions that are spaced apart from each other in the first direction and face each other.
    The cover for a male connector according to claim 11, wherein the base end portion is arranged between the pair of facing portions when the cover is attached to the male connector.
  13. 　前記カバーは、前記カバーを前記オスコネクタに装着し且つ前記キャップを前記コネクタ主部に装着したとき前記キャップに半径方向に対向するように構成されたカラーを更に備える請求項１～１２のいずれか一項に記載のオスコネクタ用カバー。 One of claims 1 to 12, wherein the cover further comprises a collar configured to face the cap radially when the cover is attached to the male connector and the cap is attached to the connector main body. The cover for the male connector described in item 1.
  14. 　前記カバーは、前記カバーの軸に平行な第３方向に沿った第３外寸法と、前記第３方向に垂直である第１方向に沿った第１外寸法と、前記第１方向及び前記第３方向に垂直な第２方向に沿った第２外寸法とを有し、
    　前記カバーは、前記第２外寸法及び前記第３外寸法より前記第１外寸法が小さな扁平形状を有し、
    　前記カバーを前記オスコネクタに装着し且つ前記キャップを前記コネクタ主部に装着したとき、前記カラーは前記キャップに前記第１方向に対向する請求項１３に記載のオスコネクタ用カバー。     The cover has a third outer dimension along a third direction parallel to the axis of the cover, a first outer dimension along a first direction perpendicular to the third direction, and the first direction and the first. It has a second outer dimension along a second direction perpendicular to the three directions,
    The cover has a flat shape in which the first outer dimension is smaller than the second outer dimension and the third outer dimension.
    The cover for a male connector according to claim 13, wherein when the cover is attached to the male connector and the cap is attached to the connector main portion, the collar faces the cap in the first direction.
  15. 　前記オスコネクタの前記コネクタ主部と前記基端部との間の段差に係合する係合構造を更に備える請求項１～１４のいずれか一項に記載のオスコネクタ用カバー。 The cover for a male connector according to any one of claims 1 to 14, further comprising an engaging structure that engages with a step between the connector main portion and the base end portion of the male connector.
  16. 　前記オスコネクタに装着された前記カバーを、前記カバーの軸と前記連結部とを含む面に垂直な方向に沿って見たとき、前記コネクタ本体は前記カバーからはみ出さない請求項１～１５のいずれか一項に記載のオスコネクタ用カバー。 The connector body does not protrude from the cover when the cover attached to the male connector is viewed along a direction perpendicular to the surface including the axis of the cover and the connecting portion. The cover for the male connector described in any one of the items.
  17. 　前記収容部に収容された前記コネクタ主部を見ることができるように前記カバーを貫通する貫通孔が前記カバーに設けられている請求項１～１６のいずれか一項に記載のオスコネクタ用カバー。 The cover for a male connector according to any one of claims 1 to 16, wherein a through hole penetrating the cover is provided in the cover so that the main portion of the connector housed in the housing portion can be seen. ..
  18. 　前記カバーの軸と前記連結部とを含む面に垂直な方向に沿って前記カバーを見たとき、前記カバーは前記カバーの軸に対して非対称である請求項１～１７のいずれか一項に記載のオスコネクタ用カバー。 According to any one of claims 1 to 17, when the cover is viewed along a direction perpendicular to the surface including the axis of the cover and the connecting portion, the cover is asymmetric with respect to the axis of the cover. The cover for the male connector described.
  19. 　前記カバーは、前記カバーを前記オスコネクタに装着したとき前記基端部に半径方向に対向するように構成されたスカートを更に備え、
    　前記カバーの軸と前記連結部とを含む面に垂直な方向に沿って前記カバーを見たとき前記スカートの外周縁が前記カバーの軸に対して非対称になるように、前記カバーに切り欠きが設けられている請求項１８に記載のオスコネクタ用カバー。     The cover further comprises a skirt configured to face the proximal end in a radial direction when the cover is attached to the male connector.
    The cover is notched so that the outer peripheral edge of the skirt is asymmetric with respect to the axis of the cover when the cover is viewed along a direction perpendicular to the plane including the axis of the cover and the connector. The cover for a male connector according to claim 18.
  20. 　前記カバーは、前記カバーの軸に垂直な方向に互いに反対側を向いた一対の側面を備え、
    　前記一対の側面のそれぞれは、凸曲面であり、
    　前記一対の側面は平坦面を介して接続されている請求項１～１９のいずれか一項に記載のオスコネクタ用カバー。     The cover comprises a pair of sides facing each other in a direction perpendicular to the axis of the cover.
    Each of the pair of side surfaces is a convex curved surface.
    The cover for a male connector according to any one of claims 1 to 19, wherein the pair of side surfaces are connected via a flat surface.
  21. 　前記カバーの外面に孔が設けられている請求項１～２０のいずれか一項に記載のオスコネクタ用カバー。 The cover for a male connector according to any one of claims 1 to 20, wherein a hole is provided on the outer surface of the cover.
PCT/JP2021/038284 2020-10-22 2021-10-15 Cover for male connector WO2022085594A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2020177553 2020-10-22
JP2020-177553 2020-10-22
JP2021162832A JP2022068838A (en) 2020-10-22 2021-10-01 Cover for male connector
JP2021-162832 2021-10-01

Publications (1)

Publication Number Publication Date
WO2022085594A1 true WO2022085594A1 (en) 2022-04-28

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PCT/JP2021/038284 WO2022085594A1 (en) 2020-10-22 2021-10-15 Cover for male connector

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WO (1) WO2022085594A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017509430A (en) * 2014-04-02 2017-04-06 フレゼニウス カービ ドイチュラント ゲーエムベーハー Gastrostomy tube with cap assembly
WO2018003923A1 (en) * 2016-06-29 2018-01-04 株式会社ジェイ・エム・エス Cap for connector, and connector with cap
JP2018029753A (en) * 2016-08-24 2018-03-01 株式会社ジェイ・エム・エス Cover for connector
US20190030312A1 (en) * 2014-09-08 2019-01-31 Neomed, Inc. Hub component for vented connector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017509430A (en) * 2014-04-02 2017-04-06 フレゼニウス カービ ドイチュラント ゲーエムベーハー Gastrostomy tube with cap assembly
US20190030312A1 (en) * 2014-09-08 2019-01-31 Neomed, Inc. Hub component for vented connector
WO2018003923A1 (en) * 2016-06-29 2018-01-04 株式会社ジェイ・エム・エス Cap for connector, and connector with cap
JP2018029753A (en) * 2016-08-24 2018-03-01 株式会社ジェイ・エム・エス Cover for connector

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