WO2015015675A1 - コネクタ及び輸液セット - Google Patents
コネクタ及び輸液セット Download PDFInfo
- Publication number
- WO2015015675A1 WO2015015675A1 PCT/JP2014/001747 JP2014001747W WO2015015675A1 WO 2015015675 A1 WO2015015675 A1 WO 2015015675A1 JP 2014001747 W JP2014001747 W JP 2014001747W WO 2015015675 A1 WO2015015675 A1 WO 2015015675A1
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- WO
- WIPO (PCT)
- Prior art keywords
- flow path
- connector
- male connector
- cap
- valve body
- Prior art date
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Classifications
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16804—Flow controllers
- A61M5/16813—Flow controllers by controlling the degree of opening of the flow line
-
- 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
- A61M39/22—Valves or arrangement of valves
- A61M39/223—Multiway valves
-
- 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
- A61M39/10—Tube connectors; Tube couplings
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/1413—Modular systems comprising interconnecting elements
-
- 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
- A61M39/10—Tube connectors; Tube couplings
- A61M2039/1072—Tube connectors; Tube couplings with a septum present in the connector
-
- 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
- A61M39/10—Tube connectors; Tube couplings
- A61M2039/1077—Adapters, e.g. couplings adapting a connector to one or several other connectors
-
- 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
- A61M39/10—Tube connectors; Tube couplings
- A61M2039/1083—Tube connectors; Tube couplings having a plurality of female connectors, e.g. Luer connectors
-
- 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
- A61M39/10—Tube connectors; Tube couplings
- A61M2039/1088—Tube connectors; Tube couplings having a plurality of male connectors, e.g. Luer connectors
-
- 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
- A61M39/22—Valves or arrangement of valves
- A61M2039/229—Stopcocks
-
- 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
- A61M39/22—Valves or arrangement of valves
- A61M39/24—Check- or non-return valves
- A61M2039/2426—Slit valve
Definitions
- the present invention relates to a connector and an infusion set, and more particularly, to a connector that can be connected to a male connector such as various medical devices and an infusion container, and an infusion set including the connector.
- the liquid is sent into the body using a medical tube.
- a connector capable of liquid-tightly connecting a male connector such as a syringe or a luer taper member and a medical tube is used.
- a male connector such as a syringe or luer taper member may be referred to as a male luer
- a connector connected to the male luer may be referred to as a female luer.
- Patent Document 1 A connector to which such a male connector can be connected is disclosed in Patent Document 1, for example.
- Patent Document 1 discloses a disc-shaped valve having an insertion hole formed in the central portion, a pedestal that supports a lower peripheral portion leaving the central portion of the back side surface of the valve, and a central portion on the front side surface of the valve.
- a co-infusion port as a connector having a cover that covers at least the peripheral upper portion of the valve and holds the valve.
- Patent Document 1 discloses a cover in which a circular fitting hole is formed in the center.
- the edge of the cover forming the fitting hole serves as a locking means for locking the insert, and the insert is fitted to the valve insertion hole and the cover. Locked by the hole.
- an object of the present invention is to provide a connector capable of suppressing the male connector from being inserted excessively inside the connector, and an infusion set including the connector.
- a connector in order to achieve the above object, includes an insertion portion into which a male connector is inserted from the outside, a housing that defines a flow path communicating with the insertion portion, and a slit.
- An elastic valve body that closes the insertion portion, and the housing receives a distal end portion of the male connector inserted through the slit of the elastic valve body on an inner wall that defines the flow path.
- the tip receiving portion is orthogonal to the insertion direction of the male connector, and is provided only on a part of the inner wall in a cross section including at least a part of the tip receiving portion. is there.
- the tip receiving portion is preferably adjacent to the flow path.
- the tip receiving portion is a protruding portion protruding toward the flow path in a direction orthogonal to the insertion direction.
- the tip receiving surface that receives the tip of the male connector among the protrusions has a protrusion amount toward the flow path in a direction orthogonal to the insertion direction as it goes in the insertion direction. It is preferable to have an extending portion that extends to be larger.
- the protruding portion has a structure that gradually decreases from the base toward the top when viewed in the insertion direction.
- the protrusions are provided to face each other across the flow path.
- the inner wall has the protruding portion and an arc-shaped portion continuous on both sides of the protruding portion.
- the housing holds the elastic valve body and divides the flow path in a direction perpendicular to the insertion direction of the male connector and a branch port portion that partitions the flow path.
- the housing includes a substantially cylindrical holder body, and a cock that divides a hollow portion together with an inner wall of the holder body is rotatably accommodated in the holder body.
- the flow path is the first flow path
- the outer wall of the holder main body holds the elastic valve body, and a branch port portion that defines the first flow path that can communicate with the hollow portion;
- An upstream port section that defines a substantially cylindrical second flow path that communicates with the hollow section, and a downstream port section that defines a substantially cylindrical third flow path capable of communicating with the hollow section is provided. It is preferable that the liquid flowing in the second flow path can be supplied to the third flow path through the hollow portion and the first flow path.
- the housing has a partition wall that divides the flow path defined by the branch port portion into two in a direction orthogonal to the insertion direction of the male connector inserted into the branch port portion. It is preferable that the tip portion and the partition wall are not in contact with each other when the tip receiving portion receives the tip portion of the male connector.
- the tip receiving portion receives the tip portion of the male connector via the elastic valve body.
- a second aspect of the present invention is an infusion set including the connector.
- the connector of the present invention and the infusion set including the connector can suppress the insertion length of the male connector from becoming excessively long when the male connector is inserted.
- FIG. 3 is a perspective view of each member constituting the connector 1.
- FIG. 2A shows the top surface of the elastic valve body 3 used in the connector 1
- FIG. 2B shows the bottom surface.
- 3A shows a side view of the elastic valve body 3 as seen from the I direction in FIG. 2B
- FIG. 3B shows a side view as seen from the II direction in FIG. 2B.
- 4A is a cross-sectional view taken along the line III-III of the elastic valve body 3 shown in FIG. 2B
- FIG. 4B is a cross-sectional view taken along the line IV-IV in FIG. 2B.
- 4 is an enlarged cross-sectional view of a branch port portion 13 of the connector 1.
- FIG. 1 shows the top surface of the elastic valve body 3 used in the connector 1
- FIG. 2B shows the bottom surface.
- 3A shows a side view of the elastic valve body 3 as seen from the I direction in FIG. 2B
- FIG. 3B shows a side view as seen from the II direction in FIG
- FIG. 2 is a perspective view of a holder 8 alone of the connector 1.
- FIG. It is the perspective view which expanded the cap support part 14 among FIG. It is a figure which shows one modification of the connector. It is a figure which shows another modification of the connector.
- FIG. 2 is a cross-sectional view of the connector 1 with a male connector inserted. It is an expanded sectional view of the front-end
- FIG. 1A is a cross-sectional view showing a three-way cock 1a as a connector 1 in the present embodiment.
- FIG. 1B is a perspective view in the state which decomposed
- the connector 1 includes a housing 2, an elastic valve body 3 attached to the housing 2, and a cock 4 accommodated in the housing 2.
- the housing 2 includes an insertion portion 5 into which a male connector 100 (see FIG. 11) is inserted from the outside, and a flow path 6 that communicates with the insertion portion 5 in the insertion direction A of the male connector 100. It is partitioned.
- the elastic valve body 3 has a slit 7 so that the male connector 100 can be elastically deformed and opened and closed when the male connector 100 is attached to and detached from the connector 1, and closes the insertion portion 5 defined by the housing 2.
- the insertion portion 5 of the housing 2 is a space in which the elastic valve body 3 is located in a state where the male connector 100 is not inserted. Therefore, the flow path 6 of the housing 2 is located on the inner side of the elastic valve body 3 in the same state.
- the insertion part 5 and the flow path 6 “communicate” means that both spaces are connected, and not only the two spaces are directly connected but also connected through another space. It is meant to include.
- the housing 2 in this embodiment includes a holder 8 and a cap 9.
- the holder 8 includes a substantially cylindrical holder main body 10 that accommodates the cock 4, an upstream port portion 11 provided on the outer wall of the holder main body 10, and the holder main body 10 between the upstream port portion 11 and the opposite side.
- a downstream port portion 12 provided on the outer wall of the holder main body 10 at a position, and a cap support portion 14 provided on the outer wall of the holder main body 10, constituting a branch port portion 13 together with the cap 9, and supporting the cap 9. ing.
- a substantially cylindrical lock having a thread formed on the inner peripheral surface used for connecting the downstream port portion 12 to another connector.
- a connector 120 is attached.
- the branch port portion 13 of the housing 2 defines the insertion portion 5 and the flow path 6 described above.
- the cap 9 that partitions the insertion portion 5 holds the elastic valve body 3, whereby the elastic valve body 3 closes the insertion portion 5.
- the cap 9 includes a top cap 15 and a bottom cap 16, and the insertion portion 5 is partitioned by a part of the inner wall of the top cap 15 and a part of the inner wall of the bottom cap 16. ing.
- the elastic valve element 3 is held in the insertion portion 5 by being sandwiched between the top cap 15 and the bottom cap 16, and the position is fixed.
- the flow path 6 in the present embodiment is partitioned by the bottom cap 16 and the cap support portion 14.
- the holder body 10 has a function of connecting the flow paths defined by the upstream port portion 11, the downstream port portion 12, and the branch port portion 13 in a state where the cock 4 is accommodated therein. It is what you have.
- the cock 4 has a groove portion 50 (see FIG. 1B) formed in a part of the outer peripheral surface thereof, and a substantially cylindrical channel switching unit 51 accommodated in the holder body 10, and the channel switching unit.
- a grip portion 52 (see FIG.
- the hollow portion 53 that connects the flow paths defined by the upstream port portion 11, the downstream port portion 12, and the branch port portion 13 to each other is defined.
- the flow path 6 defined by the branch port section 13 is referred to as a first flow path.
- the substantially cylindrical flow path defined by the flow path 17 and the upstream port part 11 is referred to as a second flow path 18, and the substantially cylindrical flow path defined by the downstream port part 12 is referred to as a third flow path 19.
- the cap support portion 14 supports a top cap 15 and a bottom cap 16 as the cap 9.
- both the top cap 15 and the bottom cap 16 are configured to be in contact with and supported by the cap support portion 14, but the bottom cap 16 is held by the top cap 15 and the top cap 15 is supported.
- a configuration may be adopted in which only the cap support portion 14 is brought into contact with the cap support portion 14 and supported by the cap support portion 14.
- the top cap 15 may be held by the bottom cap 16 and only the bottom cap 16 may be brought into contact with the cap support portion 14 and supported by the cap support portion 14.
- Examples of the material of the holder main body 10 as the holder 8 constituting the housing 2, the upstream port portion 11, the downstream port portion 12, the cap support portion 14, and the top cap 15 and the bottom cap 16 as the cap 9 include polyethylene.
- Polyolefins such as polypropylene, ethylene-propylene copolymer; ethylene-vinyl acetate copolymer (EVA); polyvinyl chloride; polyvinylidene chloride; polystyrene; polyamide; polyimide; polyamideimide; -1); ionomer; acrylic resin; polymethyl methacrylate; acrylonitrile-butadiene-styrene copolymer (ABS resin); acrylonitrile-styrene copolymer (AS resin); butadiene-styrene copolymer; polyethylene Polyesters such as terephthalate (PET), polybutylene terephthalate (PBT), polycyclohexane terephthalate (PCT
- the elastic valve body 3 is molded and formed to be elastically deformable.
- the material of the elastic valve body 3 include natural rubber, isoprene rubber, butadiene rubber, styrene-butadiene rubber, nitrile rubber, chloroprene rubber, butyl rubber, acrylic rubber, ethylene-propylene rubber, hydrin rubber, urethane rubber, silicone rubber, Various rubber materials such as fluoro rubber, various heat such as styrene, polyolefin, polyvinyl chloride, polyurethane, polyester, polyamide, polybutadiene, trans polyisoprene, fluoro rubber, chlorinated polyethylene, etc.
- a plastic elastomer may be mentioned, and one or a mixture of two or more of these may be used.
- the hardness of the elastic valve body 3 is preferably 20 to 60 ° (A hardness). Thereby, since an appropriate elastic force can be ensured in the elastic valve body 3, the elastic deformation described later can be caused in the elastic valve body 3.
- the same material as that of the housing 2 described above can be used.
- FIGS. 3A and 3B are views showing the top surface 20 and the bottom surface 21 of the elastic valve body 3 alone, respectively.
- FIGS. 3A and 3B are views of the elastic valve body 3 viewed from I and II shown in FIG. 2B, respectively. A side view is shown.
- 4A and 4B are views respectively showing III-III and IV-IV sectional views of the elastic valve body 3 in FIG. 2B.
- the elastic valve body 3 is a disk-shaped valve body having a disk-shaped outer shape
- the top surface 20 includes a planar top surface center region 22 and a center of the top surface.
- the top surface outer region 23 is located radially outside the partial region 22.
- the top surface center region 22 has a shape protruding outward from the top surface outer region 23 (upward in FIGS. 3 and 4), and a single-character slit 7 at the center of the top surface center region 22. Is formed.
- the slit 7 is formed by molding, and does not penetrate to the bottom surface 21 at the time of molding, but penetrates to the bottom surface 21 when, for example, the first male connector 100 (see FIG. 11) is inserted after molding. It is configured.
- the top surface center region 22 is located on the longitudinal direction (extending direction) side of the slit 7 in a state where the elastic valve body 3 is not accommodated in the insertion portion 5 (see FIG. 1). It has a short axis and is formed in an elliptical shape having a long axis in a direction orthogonal to the longitudinal direction of the slit 7.
- the top surface center region 22 has a circular shape in which the long axis side of the ellipse is pushed by the inner wall 35 (see FIG. 1).
- the inner surfaces are tightly closed.
- the slit 7 is not depicted as being in close contact with each other in order to facilitate understanding of the configuration.
- a top surface annular groove 24 is formed in the top surface outer region 23 so as to surround the center region 22 of the top surface, and a locking projection 34 (see FIG. 5) of the top surface cap 15 described later.
- the groove wall on the top surface center region 22 side is formed in an arc shape in a sectional view of FIG.
- the restoring performance of the elastic valve body 3 can be improved.
- the groove wall of 24 is also comprised, the position and shape of the top
- the slit 7 is not formed in the bottom center region 26, as described above, for example, when the first male connector 100 (see FIG. 11) is inserted, the tip of the slit 7 formed on the top surface 20 and The slit 7 communicates from the top surface center region 23 to the bottom surface center region 26 when the portion between the bottom surface center region 26 is torn.
- the thick part region 27 protrudes outward (downward in FIGS.
- an annular thick portion region 27 is formed so as to surround the slit 7 formed on the top surface 20, and among them,
- the wall thickness at the outer side in the longitudinal direction of the slit 7 is the thickest.
- FIG. 5 is an enlarged cross-sectional view of the branch port portion 13 in the connector 1, and shows a state where the elastic valve body 3 described above is sandwiched between the top cap 15 and the bottom cap 16.
- the configuration of the top cap 15, the bottom cap 16, and the cap support 14 will be described below with reference to FIG.
- the top cap 15 is configured by a substantially cylindrical hollow cylinder part 30 and a flange part 31 provided on one end side of the hollow cylinder part 30.
- the upper surface (the upper surface in FIG. 5) which is the other end side of the hollow cylindrical portion 30 has a substantially circular insertion port which is one end of the insertion portion 5 into which the male connector 100 is inserted from the outside.
- the flange portion 31 is a part molded integrally with the hollow cylinder portion 30, and the top cap 15 is held by the cap support portion 14 by engaging the flange portion 31 with the cap support portion 14 of the holder 8 described later. It is the composition which is done.
- the projection protrudes in the insertion direction A of the male connector 100 and enters the top surface annular groove 24 of the elastic valve body 3 described above.
- a locking projection 34 for compressing the elastic valve body 3 is provided.
- the male connector 100 when the male connector 100 is not inserted, the top surface center region 22 is fitted into the space surrounded by the inner wall 35, and when the male connector 100 is inserted, the male connector 100 is inserted into the ceiling by the cylindrical inner wall 35.
- the face cap 15 is fitted.
- the inner wall 35 in this embodiment is a cylindrical shape parallel to the insertion direction A, it is good also as a taper shape in which an internal diameter decreases gradually toward the insertion direction A according to the external shape of the male connector 100.
- the upper surface of the hollow cylinder portion 30 includes the edge portion 32 described above and a planar extension portion 36 surrounding the edge portion 32.
- the bottom cap 16 is configured to include a substantially cylindrical hollow cylinder portion 37 and a flange portion 38 provided on one end side of the hollow cylinder portion 37.
- the other end of the hollow cylindrical portion 37 protrudes in the direction opposite to the insertion direction A of the male connector 100, enters the bottom annular groove 29 of the elastic valve body 3 described above, compresses the elastic valve body 3, and A locking projection 39 that clamps the elastic valve body 3 is provided together with the locking projection 34 of the face cap 15.
- the bottom cap 16 is held by the top cap 15 by ultrasonic bonding to the inner surface of the hollow cylindrical portion 30 of the top cap 15 and / or the lower surface of the flange portion 31 (the lower surface in FIG. 5).
- the position is fixed by supporting the flange part 38 of this by the cap support part 14 mentioned later.
- the cap support portion 14 of the holder 8 supports the top cap 15 and the bottom cap 16, and defines a part of the first flow path 17 (flow path 6) therein.
- the cap support portion 14 of the present embodiment supports both the top surface cap 15 and the bottom surface cap 16 by directly contacting them.
- the cap support portion 14 does not contact the top surface cap 15 and the bottom surface cap 15 does not contact the top surface cap 15.
- the top cap 15 may be in direct contact with only the bottom cap 16 and the bottom cap 16 may be in contact with and supported by the bottom cap 16. That is, the cap support portion 14 may be configured to directly contact and support either the top cap 15 or the bottom cap 16 and not to contact the other.
- the top cap 15 and the bottom cap 16 sandwich the elastic valve body 3 and hold the elastic valve body 3 in the insertion portion 5.
- the cap support portion 14 The bottom cap 16 may be integrated with the bottom cap 16, that is, the bottom cap 16 may be a part of the holder 8.
- the insertion portion 5 communicates with the first flow path 17 defined by the bottom cap 16 and the cap support portion 14 in a state where the male connector 100 is not inserted.
- the distal end portion 101 of the male connector 100 enters the first flow path 17 through the insertion section 5, and the liquid flow path in the male connector 100 and the first flow path 17 (flow)
- the cap support part flow path 80 defined by the cap support part 14 in the path 6) communicates.
- the cap support part flow path 80 defined by the cap support part 14 is, in the insertion direction A of the male connector, a bottom cap flow path 81 defined by the bottom cap 16 of the first flow path 17 and a substantially cylindrical holder.
- the hollow portion is connected to the internal space of the main body 10 (see FIG. 1) and is adjacent to the distal end receiving portion 40 that receives the distal end portion 101 of the male connector 100 inserted from the outside.
- the cap support portion flow path 80 includes a holder main body side flow path 41 that directly communicates with the internal space of the substantially cylindrical holder main body 10, and the holder main body side flow path 41 and the bottom cap in the insertion direction A of the male connector.
- the holder body side channel 41 and the bottom cap channel 81 are connected to each other and are inserted from the outside through the slit 7 of the elastic valve body 3 in the direction B orthogonal to the insertion direction A.
- the cap support part 14 of this embodiment is provided with the partition wall 43 which divides the holder main body side flow path 41 into two flow paths. Therefore, the holder main body side channel 41 has an inflow channel 44 located on the upstream port portion 11 (see FIG. 1) side with the partition wall 43 interposed therebetween, and a downstream port unit 12 (see FIG. 1) with the partition wall 43 in between. ) Side outflow passage 45. Details of the partition wall 43 will be described later.
- FIG. 6 is a view of the holder 8 alone with the top cap 15 and the bottom cap 16 (see FIG. 1B, etc.) removed as viewed in the insertion direction A of the male connector.
- the cross section of the cap support portion 14 shown in FIG. 5 is the VV cross section in FIG.
- FIG. 7 is a perspective view showing the entire holder 8 alone
- FIG. 8 is a perspective view showing the cap support portion 14 in the holder 8. Details of the tip receiving portion 40 will be described below with reference to FIGS.
- the distal end receiving portion 40 receives the distal end portion 101 of the male connector 100 inserted from the outside through the slit 7 of the elastic valve body 3, so that the male connector 100 is connected to the connector in the insertion direction A of the male connector. It suppresses being excessively inserted into the inside of 1.
- the tip receiving portion 40 is provided on an inner wall 46 that partitions the connection flow path 42. Further, as shown in FIGS. 6 to 8, the tip receiving portion 40 has a cross section perpendicular to the insertion direction A of the male connector having a substantially circular shape, which is a cross section of the connection flow path 42 (in this embodiment, an elastic valve body).
- FIG. 5 and FIG. 6 are cross sections of the connection flow path 42 at the end portion on the 3 side, and in other words, define one end of the connection flow path 42 on the surface of the cap support portion 14 on the elastic valve body 3 side.
- the tip receiving portion 40 is provided only on a part of the inner wall 46 that divides the connection flow path 42.
- the tip receiving part 40 is provided only on a part of the inner wall 46. It is not provided over the entire inner wall 46 in the same cross section. Further, in the same cross section, the tip receiving portion 40 is adjacent to the connection flow path 42 in the cap support section flow path 80. That is, the periphery of the tip receiving part 40 in the same cross section is a flow path for the infusion agent, and a part of the infusion agent branches and flows so as to sandwich the tip receiving part 40 as described later.
- the tip receiving part 40 is provided on the inner wall 46 that defines the cap support part flow path 80 in the first flow path 17. It is good also as a structure provided in the inner wall of the bottom face cap 16 which divides.
- the tip receiving portion 40 when viewed in the male connector insertion direction A, is connected to the connection channel 42 side (in FIG. 6) in the direction B perpendicular to the male connector insertion direction A. Is a protruding portion 40a protruding in the same manner as the holder main body side channel 41 side. More specifically, the tip receiving portion 40 in the present embodiment has a connection flow path 42 in the same direction B among the inner walls 46 defining the connection flow path 42 when the tip receiving portion 40 is viewed in the insertion direction A. It is a part protruding to the side.
- the inner wall 46 has an arc shape that is continuous between the protruding portion 40a and both sides of the protruding portion 40a. Part 57.
- the tip receiving portion 40 has a tip receiving surface 47 that receives the tip 101 of the male connector 100 inserted from the outside.
- the tip receiving surface 47 of the present embodiment is a surface on the elastic valve body 3 side of the protruding portion 40 a as the tip receiving portion 40, and extends from the base 48 to the top 49 of the protruding portion 40 a. It is extended. Specifically, the tip receiving surface 47 projects in the direction B perpendicular to the insertion direction A toward the connection flow path 42 in the insertion direction A of the side male connector 100 (in this embodiment, in the insertion direction A).
- the first extending portion 55 which is a surface extending so that the length from the edge 54 in the direction B perpendicular to the first extending portion 55 is increased, and the end portion on the top 49 side of the first extending portion 55 continuously.
- a second extending portion 56 having a plane perpendicular to the insertion direction A and extending to the top portion 49.
- the distal end portion 101 of the male connector 100 is configured to abut against the first extending portion 55 via the elastic valve body 3, and details of this point will be described later (see FIGS. 11 and 12). .
- first extending portion 55 and the second extending portion 56 are both configured by planar surfaces.
- the present invention is not limited to this.
- the first extending portion 55 and the second extending portion 56 It is also possible to configure the second extending portion 56 with an arcuate surface.
- the protruding portion 40 a when the protruding portion 40 a is viewed in the insertion direction A of the male connector, the protruding portion 40 a has a shape that gradually decreases from the base portion 48 toward the top portion 49.
- the top 49 side thinner than the base 48 side, that is, by reducing the width W in the circumferential direction C in this embodiment, the area of the connection flow path 42 in the cross section orthogonal to the insertion direction A is suppressed.
- the base 48 side is made thicker than the top 49 side, that is, in the present embodiment, the width W in the circumferential direction C can be increased to ensure the strength for receiving the distal end portion 101 of the male connector 100. Become.
- the outer shape of the protruding portion 40a when viewed in the insertion direction A of the male connector has a curved shape such as a sine wave curve, and the top portion 49 has an arc shape.
- the shape is not limited to a simple shape, and for example, a shape having a portion constituted by a straight line may be used.
- a plurality of protrusions 40a are provided in the circumferential direction C.
- the number of the protrusions 40a is two. It is not restricted to, It is also possible to use three or more.
- the two protruding portions 40a in the present embodiment are provided to face each other across the connection flow path 42 in the direction B orthogonal to the insertion direction A.
- the present invention is not limited to this, and the insertion direction A In a direction B perpendicular to the direction B, it may be provided at a position that is not opposed across the connection channel 42.
- the protruding portion 40 a of the present embodiment is configured such that the first protruding portion 401 a on the upstream port portion 11 side and the second protruding portion 402 a on the downstream port portion 12 side face each other. .
- the three-way cock 1a is described as the connector 1.
- the tip receiving portion 40 is not limited to the three-way cock, and for example, only a linear flow path as shown in FIG.
- the present invention can also be applied to a linear connector 1b having a T and a T-shaped connector 1c having a T-shaped channel without a cock as shown in FIG.
- the linear connector 1b is mainly different from the three-way cock 1a in the present embodiment in that the shape of the holder is different, and the same components as the three-way cock 1a are the same in FIG. Is used.
- the holder 8b of the linear connector 1b includes a substantially cylindrical tube portion 90 having an inner peripheral surface provided with a screw thread for a lock connector, and a male luer portion 91 provided in a hollow portion of the tube portion 90. .
- the inner wall of the male luer portion 91 in the holder 8b defines a substantially cylindrical flow path 92.
- the inner wall of the holder 8 b defines a connection channel 93 that connects the channel 92 and the bottom cap channel 81.
- the inner wall of the holder 8b that divides the connection channel 93 has the same shape as the connection channel 42 of the three-way cock 1a shown in FIGS. 5 to 8, and is provided with a protruding portion 40a as the tip receiving portion 40.
- the T-shaped connector 1c is mainly different from the three-way cock 1a in the present embodiment in that it does not have a cock, and the holder has a different shape by not having a cock.
- the same reference numerals are used in FIG. 10 for the same components as the three-way stopcock 1a.
- the holder 8c of the T-shaped connector 1c holds the elastic valve body 3 and divides the flow path 94 in the direction B perpendicular to the insertion direction A of the male connector 100 and the branch port portion 13c that partitions the flow path 94.
- An upstream port portion 11c located on one side and a downstream port portion 12c located on the other side across the flow path 94 are provided.
- the upstream port portion 11c defines the substantially cylindrical second flow path 96 communicating with the first flow path 95
- the downstream port portion 12c is the first flow path 95
- a substantially cylindrical third flow path 97 communicating with the flow path 95 is defined.
- the T-shaped connector 1c allows the infusion agent to be inserted into the insertion portion 5 when the infusion agent is allowed to flow from the second flow path 96 to the third flow path 97 in a state where the male connector 100 is not inserted into the insertion section 5.
- a partition wall 43 c that leads to the side is provided between the second flow path 96 and the third flow path 97.
- the first flow path 95 includes a bottom cap flow path 81 defined by the bottom cap 16 and a holder flow path 98 defined by the holder 8c.
- a tip receiving portion 40 that receives the tip 101 of the male connector 100 inserted from the side is provided.
- the tip receiving portion 40 is provided only on a part of the inner wall of the holder 8c in a cross section that is orthogonal to the insertion direction A of the male connector and includes at least a part of the tip receiving portion 40.
- the tip receiving portion 40 can be applied not only to the three-way cock 1a as the connector 1, but also to the straight connector 1b and the T-shaped connector 1c. It is particularly effective to be used in the three-way cock 1a of the present embodiment that can be used as a part of the main line of the infusion line or the above-described T-shaped connector 1c even if it is not.
- the first flow path 17 that the branch port portion 13 defines even when the male connector 100 is not inserted In addition to the function of receiving the distal end portion 101 of the male connector 100 when the male connector 100 is inserted, the first flow path 17 that the branch port portion 13 defines even when the male connector 100 is not inserted.
- the protrusion 40a is orthogonal to the insertion direction A of the male connector 100, and is connected to the first flow path 17 (flow path 6) in a cross section including at least a part of the protrusion 40a (for example, a VI-VI cross section in FIG. 5). Adjacent to the channel 42. More specifically, both sides of the protruding portion 40a in the circumferential direction C are connection channels 42 of the first channel 17 (channel 6).
- the first protrusion 401a (see FIGS. 5 to 8) is a part of the infusion that flows from the inflow passage 44 into the bottom cap passage 81 (see FIG. 5). Branch in the direction. That is, a part of the infusion flowing from the inflow channel 44 toward the bottom cap channel 81 is branched in a plurality of directions along the outer wall of the first protruding portion 401a, and each of the branched flows is different. It goes to the bottom cap channel 81 via the route.
- the turbulent flow of the infusate can be formed by the first protrusion 401a and the second protrusion 402a in or near the bottom cap channel 81, for example, the inner wall of the bottom cap 16 or the elastic valve body 3 can be reduced.
- the infusion agent that flows through the flow passages located on both sides in the circumferential direction C with respect to the first protrusion 401a is moved into the bottom cap flow passage 81 toward the inner wall of the hollow cylindrical portion 37 in the bottom cap 16.
- the inner wall 60 of the cap support portion 14 that defines flow paths located on both sides in the circumferential direction C of the first protrusion 401a when viewed in the section VII-VII shown in FIG. It connects with the inner wall of the hollow cylinder part 37 so that a big level
- the infusion agent that has flowed into the bottom cap channel 81 is used when the branch port portion 13 is used in either the upward (vertical direction) or the lateral direction (horizontal direction).
- the VII-VII cross section is a cross section different from the cross section shown in FIG. 5, but for convenience of explanation, the inner wall of the cap support portion 14 in the VII-VII cross section is shown by a broken line in FIG.
- the flow paths located on both sides in the circumferential direction C with respect to the second protrusion 402a also have the same configuration as the flow paths located on both sides in the circumferential direction C with respect to the first protrusion 401a.
- the inner wall of the cap support portion 14 divides a flow path located on both sides in the circumferential direction C of the second protrusion 402a.
- the infusion agent is likely to accumulate on the inner wall of the hollow cylinder portion 37 due to gravity, so that the step is not formed as described above. It is effective to configure.
- Partition wall 43 As shown in FIG. 1, the partition wall 43 in the present embodiment is formed from the second flow path 18 defined by the upstream port portion 11 in a state where the male connector 100 (see FIG. 11) is not inserted into the branch port portion 13.
- the infusion agent toward the third flow path 19 defined by the downstream port portion 12 can be passed through to the bottom cap flow path 81 of the first flow path 17 defined by the branch port portion 13.
- the partition wall 43 does not exist, the infusion agent flowing into the first channel 17 from the hollow portion 53 defined by the holder body 10 and the channel switching unit 51 of the cock 4 may not reach the bottom cap channel 81.
- the partition wall 43 by providing the partition wall 43, the infusate flowing into the first flow path 17 can be surely reached the bottom cap flow path 81, and therefore the bottom cap flow path 81 of the first flow path 17 is provided. It can suppress that an infusion solution stagnates around.
- the partition wall 43 divides the holder main body side flow path 41 defined by the branch port portion 13 into two in a direction B orthogonal to the insertion direction A of the male connector 100 inserted into the branch port portion 13.
- the partition wall 43 is held on the inner wall of the cap support portion 14.
- the partition wall 43 includes an inflow channel 44 through which an infusion agent flows from the second channel 18 into the bottom cap channel 81 in the first channel 17, and a bottom surface.
- the outflow channel 45 through which the infusion agent flowing out from the cap channel 81 to the third channel 19 passes is separated.
- the cross-sectional shape orthogonal to the insertion direction A of the male connector of the inflow channel 44 and the outflow channel 45 is a substantially rectangular shape. It is not limited.
- the partition wall 43 is not limited to a flat plate but may be a plate-like member having a curved surface.
- the partition wall 43 and the above-described protruding portion 40a are used in combination.
- the combined use of these two can further suppress the infusion agent or the chemical solution from being stagnated on the inner wall of the bottom cap 16 or the bottom surface of the elastic valve body 3 in a state where the male connector 100 is not inserted. It is particularly effective.
- the distal end portion 101 of the male connector 100 does not contact the partition wall 43. It is a configuration. This point will be described later.
- the flow path switching portion 51 of the cock 4 that partitions the hollow portion 53 together with the inner wall of the holder main body 10 is rotatably accommodated.
- the outer wall of the cylindrical body 2 holds the elastic valve body 3 and defines the first flow path 17 that can communicate with the hollow portion 53, and the substantially cylindrical second flow that communicates with the hollow portion 53.
- An upstream port portion 11 that partitions the passage 18 and a downstream port portion 12 that partitions the substantially cylindrical third flow path 19 that can communicate with the hollow portion 53 are provided.
- the connector 1 can supply the liquid flowing in the second flow path 18 to the third flow path 19 via the hollow portion 53 and the first flow path 17.
- the infusion agent from the infusion bag flows from the second flow path 18 defined by the upstream port portion 11 to the first flow. It flows to the 3rd flow path 19 which the downstream port part 12 partitions through the path
- the infusion agent includes the second flow path 18, the hollow portion 53, the inflow flow path 44 of the holder body side flow path 41 (a part of the cap support section flow path 80). , The connecting flow path 42 (a part of the cap support section flow path 80) in this order, and reaches the bottom cap flow path 81.
- the infusate that has reached the bottom cap channel 81 is in contact with the inner wall of the bottom cap 16 and the like by the turbulent action of the protrusion 40a described above, while being connected to the connection channel 42 (one of the cap support unit channels 80).
- the outflow passage 45 of the holder body side passage 41 (a part of the cap support portion passage 80), the hollow portion 53, and the third passage 19 in this order.
- the connector 1 constitutes a part of the main line of the infusion line in a state where the male connector 100 is not inserted into the branch port portion 13, and includes the protrusion 40a and the partition wall 43 described above. The retention of the infusion solution in the branch port portion 13 is suppressed.
- FIG. 11 is a cross-sectional view showing a state where the male connector 100 is inserted into the branch port portion 13 of the connector 1
- FIG. 12 is an enlarged cross-sectional view of the vicinity of the tip 101 of the male connector 100 in the same state.
- FIG. 11 only the holder 8 and the cap 9 are shown as the connector 1 for convenience.
- connection channel 42 (see FIG. 5) in the cap support 14 is reached.
- the elastic valve body 3 is elastically deformed by insertion of the male connector 100, enters between the inner wall of the bottom cap 16 and the outer wall of the male connector 100, and comes into close contact with the outer surface of the male connector 100. Thereby, it is suppressed that a liquid leaks from the branch port part 13 of the connector 1 outside.
- the distal end portion 101 of the male connector 100 abuts against the distal end receiving portion 40 provided on the inner wall of the cap support portion 14 that defines the connection flow path 42 with the elastic valve body 3 interposed therebetween, and the insertion direction of the male connector Positioning at A is performed.
- the distal end portion 101 of the male connector 100 defines a distal end peripheral surface 101a constituting an outer wall in a direction B orthogonal to the insertion direction A of the male connector, and an outlet of the liquid flow path in the male connector 100
- the male connector 100 includes: a distal end flat surface 101b constituting an outer wall in the insertion direction A of the male connector; and a distal end curved surface 101c having an arcuate cross section connecting the distal peripheral surface 101a and the distal end flat surface 101b in the sectional view of FIG.
- the distal curved surface 101c of the distal end portion 101 of the first end portion 101 presses the distal end receiving surface 47 of the distal end receiving portion 40 via the elastic valve body 3, whereby the insertion of the male connector 100 in the insertion direction A is restricted.
- the position of the distal end portion 101 in the insertion direction A is positioned.
- the tip curved surface 101 c of the male connector 100 is received by the first extending portion 55 of the tip receiving surface 47, but the tip curved surface 101 is received by the second extending portion 56. Also good.
- the tip receiving surface 47 is configured to receive the tip curved surface 101 c of the male connector 100 via the elastic valve body 3, but the tip receiving surface 47 is substituted for the tip curved surface 101 c of the male connector 100.
- the tip peripheral surface 101a and the tip flat surface 101b may be received.
- the tip receiving portion 40 is configured to receive the tip 101 of the male connector 100 via the elastic valve body 3, but the tip receiving portion 40 does not pass through the elastic valve body 3 and is male. The configuration may be such that the front end portion 101 is received by directly contacting any surface of the front end portion 101 of the connector 100.
- the tip 101 of the male connector 100 and the partition wall 43 are not in contact with each other. That is, in a state where the male connector 100 is received by the tip receiving portion 40, the surface of the partition wall 43 on the side of the elastic valve body 3 is not touched with the tip flat surface 101 b of the male connector 100. It is located on the inner side of the connector 1 with respect to the tip receiving surface 47 of the tip receiving portion 40.
- FIG. 13 is a view showing the infusion set 110.
- the infusion set 110 shown in FIG. 13 includes the three-way stopcock 1a as the connector 1, it may be an infusion set including the linear connector 1b and the T-shaped connector 1c described above instead of the three-way stopcock 1a.
- the infusion set 110 including the three-way cock 1a will be described.
- the infusion set 110 forms an infusion line that connects an infusion bag (not shown in FIG. 13) to an indwelling needle (not shown in FIG. 13).
- the infusion set 110 includes a plurality of infusion tubes 111, a drip tube 112 that can visually recognize the flow rate of the infusion solution supplied from the infusion bag, and a clamp 113 that adjusts the flow rate of the infusion agent in the infusion tube 111.
- an air vent filter 114 for discharging (or supplying) air existing in the infusion line, and a clamp 115 for closing the infusion tube 111.
- a three-way cock 1a as the connector 1 is provided between the clamp 113 and the air vent filter 114.
- the connector 1 connects the first infusion tube 111a extending downstream from the drip tube 112 and the second infusion tube 111b extending upstream of the air vent filter 114 so as to be able to circulate. It constitutes a part of the main line flow path.
- a third infusion tube 111c having a male connector 100 at the tip is connected to the branch port portion 13 of the connector 1, and a subline of the infusion line is configured. Therefore, in the connector 1, the main line and the subline of the infusion line are connected.
- the connector 1 is provided between the clamp 113 and the air vent filter 114.
- the connector 1 is not limited to this position, and can be provided at a desired position.
- the infusion set 110 of this embodiment is a structure provided with only one connector 1, it is good also as a structure provided with two or more.
- the present invention relates to a connector and an infusion set, and more particularly, to a connector that can be connected to a male connector such as various medical devices and an infusion container, and an infusion set including the connector.
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Abstract
Description
図2A及び図2Bは、弾性弁体3単体の天面20及び底面21をそれぞれ示した図であり、図3A及び図3Bは、図2Bで示すI及びIIからそれぞれ見た弾性弁体3の側面図を示している。また、図4A及び図4Bは、図2Bにおける弾性弁体3のIII-III及びIV-IV断面図をそれぞれ示した図である。
図5は、コネクタ1における分岐ポート部13の拡大断面図であり、上述した弾性弁体3が、天面キャップ15と底面キャップ16とに挟持されている状態を示すものである。図5を参照しながら天面キャップ15、底面キャップ16、及びキャップ支持部14の構成を以下に説明する。
図5に示すように、底面キャップ16は、天面キャップ15と同様、略円筒状の中空筒部37と、中空筒部37の一端側に設けられたフランジ部38とを備える構成である。中空筒部37の他端側には、オスコネクタ100の挿入方向Aとは反対方向に向かって突出し、上述した弾性弁体3の底面環状溝29に入り込んで弾性弁体3を圧縮し、天面キャップ15の係止突起34と共に弾性弁体3を挟持する係止突起39が設けられている。
図5に示すように、ホルダ8のキャップ支持部14は、天面キャップ15及び底面キャップ16を支持し、その内部に第1流路17(流路6)の一部を区画している。本実施形態のキャップ支持部14は、天面キャップ15及び底面キャップ16と直接接触することにより両者を支持しているが、例えばキャップ支持部14が天面キャップ15とは接触せずに底面キャップ16のみと直接接触し、天面キャップ15は底面キャップ16に接触、支持させる構成としてもよい。すなわちキャップ支持部14が天面キャップ15と底面キャップ16のいずれか一方と直接接触して支持し、他方とは直接接触しない構成としてもよい。なお、直接接触する部材同士は、例えば超音波接着などにより接着するようにすることが好ましい。
次に、キャップ支持部14に設けられた先端受け部40について説明する。図6は、天面キャップ15及び底面キャップ16(図1B等参照)が取り外された状態のホルダ8単体をオスコネクタの挿入方向Aに見た図である。ここで、図5において示されるキャップ支持部14の断面は、図6におけるV-V断面におけるものである。また、図7は、ホルダ8単体の全体を示す斜視図であり、図8は、ホルダ8のうちキャップ支持部14を示す斜視図である。以下、図5~図8を参照して、先端受け部40の詳細について説明する。
図1に示すように、本実施形態における仕切壁43は、オスコネクタ100(図11参照)が分岐ポート部13に挿入されていない状態において、上流ポート部11が区画する第2流路18から下流ポート部12が区画する第3流路19に向かう輸液剤を、分岐ポート部13が区画する第1流路17の底面キャップ流路81まで経由させることを可能にするものである。仕切壁43が存在しないと、ホルダ本体10とコック4の流路切換部51とにより区画される中空部53から第1流路17に流入する輸液剤は、底面キャップ流路81まで到達しない可能性があるが、仕切壁43を設けることにより、第1流路17に流入する輸液剤を確実に底面キャップ流路81まで到達させることができるため、第1流路17の底面キャップ流路81の周辺で輸液剤が停滞してしまうことを抑制できる。
次に、分岐ポート部13にオスコネクタ100が挿入されていない状態での、コネクタ1内での輸液剤の流れについて図1を用いて説明する。分岐ポート部13にオスコネクタ100が挿入されていない状態では、コネクタ1は、輸液ラインのメインラインの一部を構成する。
ここまでは、主に、オスコネクタ100が挿入されていない状態でのコネクタ1について説明してきた。以下に、オスコネクタ100がコネクタ1の分岐ポート部13に挿入されている状態でのコネクタ1の各部材について説明する。
最後に、本発明の1つの実施形態としての、コネクタ1を備える輸液セット110について説明する。図13は輸液セット110を示す図である。なお、図13で示す輸液セット110は、コネクタ1として三方活栓1aを備えるものとしているが、三方活栓1aに代えて、上述した直線型コネクタ1bやT字型コネクタ1cを備える輸液セットとしてもよいが、説明の便宜上、ここでは三方活栓1aを備えた輸液セット110について説明する。
1a:三方活栓
1b:直線型コネクタ
1c:T字型コネクタ
2:ハウジング
3:弾性弁体
4:コック
5:挿入部
6、17、94、95:第1流路
7: スリット
8、8c:ホルダ
9: キャップ
10:ホルダ本体
11:上流ポート部
12:下流ポート部
13:分岐ポート部
14:キャップ支持部
15:天面キャップ
16:底面キャップ
18、96:第2流路
19、97:第3流路
20:弾性弁体の天面
21:弾性弁体の底面
22:天面中心部領域
23:天面外部領域
24:天面環状溝
25:側壁
26:底面中心部領域
27:厚肉部領域
28:底面外部領域
29:底面環状溝
30:天面キャップの中空筒部
31:天面キャップのフランジ部
32:縁部
33:ねじ山
34:天面キャップの係止突起
35:内壁
36:延在部
37:底面キャップの中空筒部
38:底面キャップのフランジ部
39:底面キャップの係止突起
40:先端受け部
40a:突出部
41:ホルダ本体側流路
42、93:接続流路
43、43c:仕切壁
44:流入流路
45:流出流路
46:接続流路を区画する内壁
47:先端受け面
48:基部
49:頂部
50:溝部
51:流路切換部
52:把持部
53:中空部
54:縁
55:第1延在部
56:第2延在部
57:円弧状部
58:切欠部
60:キャップ支持部の内壁
80:キャップ支持部流路
81:底面キャップ流路
90:筒部
91:オスルアー部
92:流路
98:ホルダ流路
100:オスコネクタ
101:オスコネクタの先端部
101a:先端周面
101b:先端平面
101c:先端曲面
110:輸液セット
111:輸液チューブ
111a:第1輸液チューブ
111b:第2輸液チューブ
111c:第3輸液チューブ
112:点滴筒
113:クレンメ
114:エアベントフィルタ
115:クランプ
120:ロックコネクタ
401a:第1突出部
402a:第2突出部
A:オスコネクタの挿入方向
B:オスコネクタ挿入方向に直交する方向
C:略円形状の断面を有する流路の周方向
D:上流ポート部から下流ポート部に向かう方向
W:周方向Cにおける突出部の幅
Claims (12)
- オスコネクタが外方から挿入される挿入部及び当該挿入部と連通する流路を区画するハウジングと、
スリットを有し、前記挿入部を閉塞する弾性弁体と、を備え、
前記ハウジングは、前記流路を区画する内壁に、前記弾性弁体の前記スリットを通じて挿入された前記オスコネクタの先端部を受ける先端受け部を備え、
前記先端受け部は、前記オスコネクタの挿入方向に直交し、前記先端受け部の少なくとも一部を含む断面において、前記内壁の一部のみに設けられていることを特徴とするコネクタ。 - 前記断面において、前記先端受け部は、前記流路と隣接していることを特徴とする請求項1に記載のコネクタ。
- 前記先端受け部は、前記挿入方向に直交する方向において、前記流路側に突出した突出部であることを特徴とする請求項1又は2に記載のコネクタ。
- 前記突出部のうち前記オスコネクタの前記先端部を受ける先端受け面は、前記挿入方向に向かうにつれ、前記挿入方向に直交する方向における前記流路側への突出量が大きくなるように延在する延在部を有することを特徴とする請求項3に記載のコネクタ。
- 前記突出部は、前記挿入方向で見た場合に、基部から頂部に向かって、漸減的に細くなる構成であることを特徴とする請求項3又は4に記載のコネクタ。
- 前記挿入方向に直交する方向において、前記突出部は、前記流路を挟んで対向して設けられていることを特徴とする請求項3乃至5のいずれか1つに記載のコネクタ。
- 前記断面において、前記内壁は、前記突出部と、前記突出部の両側で連続する円弧状部と、を有することを特徴とする請求項3乃至6のいずれか1つに記載のコネクタ。
- 前記ハウジングは、前記弾性弁体を保持すると共に前記流路を区画する分岐ポート部と、前記オスコネクタの前記挿入方向と直交する方向において、前記流路を挟んで一方側に位置する上流ポート部と、前記流路を挟んで他方側に位置する下流ポート部と、を備え、前記流路を第1流路とした場合に、前記上流ポート部が、前記第1流路と連通する略円柱状の第2流路を区画するとともに、前記下流ポート部が、前記第1流路と連通する略円筒状の第3流路を区画していることを特徴とする請求項1乃至7のいずれか1つに記載のコネクタ。
- 前記ハウジングは、略円筒状のホルダ本体を備え、
前記ホルダ本体の内部には、前記ホルダ本体の内壁と共に中空部を区画するコックが回転可能に収容されており、
前記流路を第1流路とした場合に、前記ホルダ本体の外壁には、前記弾性弁体を保持すると共に、前記中空部と連通可能な前記第1流路を区画する分岐ポート部と、前記中空部に連通可能な、略円柱状の第2流路を区画する上流ポート部と、前記中空部に連通可能な、略円柱状の第3流路を区画する下流ポート部と、が設けられており、
前記第2流路を流れる液体を、前記中空部及び前記第1流路を介して前記第3流路に供給可能な請求項1乃至7のいずれか1つに記載のコネクタ。 - 前記ハウジングは、前記分岐ポート部が区画する前記流路を、当該分岐ポート部に挿入される前記オスコネクタの前記挿入方向と直交する方向において2分割する仕切壁を備え、
前記先端受け部が、前記オスコネクタの前記先端部を受けた状態において、前記先端部と前記仕切壁とは非接触であることを特徴とする請求項8又は9に記載のコネクタ。 - 前記先端受け部は、前記オスコネクタの前記先端部を、前記弾性弁体を介して受けることを特徴とする請求項1乃至10のいずれか1つに記載のコネクタ。
- 請求項1乃至11のいずれか1つに記載のコネクタを備えることを特徴とする輸液セット。
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CN201480042795.0A CN105407959B (zh) | 2013-07-31 | 2014-03-26 | 连接器和输液组件 |
JP2015529326A JP6316294B2 (ja) | 2013-07-31 | 2014-03-26 | コネクタ及び輸液セット |
EP14831873.6A EP3028736B1 (en) | 2013-07-31 | 2014-03-26 | Connector and transfusion set |
US15/010,562 US11065383B2 (en) | 2013-07-31 | 2016-01-29 | Connector and transfusion set |
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US11065383B2 (en) | 2021-07-20 |
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JP6316294B2 (ja) | 2018-04-25 |
CN105407959A (zh) | 2016-03-16 |
JPWO2015015675A1 (ja) | 2017-03-02 |
US20160144110A1 (en) | 2016-05-26 |
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EP3028736A1 (en) | 2016-06-08 |
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