JP4029851B2 - Wing needle protector - Google Patents

Wing needle protector Download PDF

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JP4029851B2
JP4029851B2 JP2004080261A JP2004080261A JP4029851B2 JP 4029851 B2 JP4029851 B2 JP 4029851B2 JP 2004080261 A JP2004080261 A JP 2004080261A JP 2004080261 A JP2004080261 A JP 2004080261A JP 4029851 B2 JP4029851 B2 JP 4029851B2
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protector
slit
winged needle
needle
main body
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JP2004298622A5 (en
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猛史 森
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Nipro Corp
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    • 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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/06—Body-piercing guide needles or the like
    • A61M25/0612—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders
    • A61M25/0631—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders having means for fully covering the needle after its withdrawal, e.g. needle being withdrawn inside the handle or a cover being advanced over the needle
    • 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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/06—Body-piercing guide needles or the like
    • A61M25/0612—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders
    • A61M25/0637—Butterfly or winged devices, e.g. for facilitating handling or for attachment to the skin

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  • Health & Medical Sciences (AREA)
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  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
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  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Description

本発明は翼付針のプロテクターに関し、さらに詳細には使用後の翼付針による針刺し事故を防止するために、プロテクターを翼付針の基端側からスライドさせることにより翼付針の針管および刃先を収納しうるプロテクターに関する。   The present invention relates to a protector for a winged needle, and more specifically, in order to prevent a needle stick accident caused by a winged needle after use, by sliding the protector from the proximal end side of the winged needle, the needle tube and the cutting edge of the winged needle are provided. It is related with the protector which can store.

従来、翼付針と該翼付針の針管および刃先を収納するためのプロテクターは完全に別体とされており、使用後に該翼付針を刃先からプロテクター内部に挿入して針管および刃先を保護するものであった。したがって、このようなプロテクターを使用することにより、刃先でプロテクターを保持している指を穿刺してしまう、所謂誤穿刺事故が多発しており、医療従事者がエイズや肝炎などに感染するおそれがあった。   Conventionally, the winged needle and the protector for storing the needle tube and blade edge of the winged needle have been completely separated. After use, the winged needle is inserted into the protector from the blade edge to protect the needle tube and the blade edge. It was something to do. Therefore, by using such a protector, so-called false puncture accidents that puncture the finger holding the protector at the blade edge frequently occur, and there is a risk that medical personnel may be infected with AIDS, hepatitis, etc. there were.

そこで、このような誤穿刺事故を防止する目的で、スライド式のプロテクターが多数開発されている。その一例としては、スリットを有するプロテクターを翼付針の基端側に接続されたチューブ上に配置し、該翼付針使用後、該プロテクターを先端側へスライドさせて該翼付針の針管および刃先を該プロテクター内に収納して保護するプロテクターがある（例えば、特許文献１参照。）。
前記プロテクターは側壁に翼付針の翼が挿入されるためのスリットが設けられており、先端側へスライドさせるだけで容易に翼付針の針管および刃先を保護しうるものである。しかし、該スリットはプロテクターの軸に平行に直線状に設けられており、該翼付針は該プロテクターの軸中心に配置されるため、該スリットと該翼付針の針管は平行に配置されることになる。このようにスリットと針管が配置されるプロテクターは、翼付針または該翼付針の基端側に接続されたチューブの動きによっては、プロテクター内に収納された針管および刃先が該スリットから突出するおそれがある。 Therefore, many slide-type protectors have been developed for the purpose of preventing such erroneous puncture accidents. As an example, a protector having a slit is arranged on a tube connected to the proximal end side of the winged needle, and after using the winged needle, the protector is slid to the distal end side, and the needle tube of the winged needle and There exists a protector which accommodates and protects a blade edge | tip in this protector (for example, refer patent document 1).
The protector is provided with a slit for inserting a blade of a winged needle on the side wall, and can easily protect the needle tube and the blade edge of the winged needle only by sliding to the tip side. However, since the slit is provided in a straight line parallel to the axis of the protector, and the winged needle is arranged at the axis center of the protector, the slit and the needle tube of the winged needle are arranged in parallel. It will be. In the protector in which the slit and the needle tube are arranged in this way, depending on the movement of the winged needle or the tube connected to the proximal end side of the winged needle, the needle tube and the blade edge housed in the protector protrude from the slit. There is a fear.

一方、プロテクターに収納された翼付針の針管および刃先がスリットから突出することを防止しうるプロテクターとして、翼付針収納後にスリットおよび先端開口を閉鎖するロック機構を備えたプロテクター（例えば、特許文献２参照。）や、翼付針のハブがプロテクターの機能を兼ねることでプロテクターに翼挿入用のスリットを設ける必要のない翼付針（例えば、特許文献３参照。）、プロテクターのスリットの基端部をプロテクターの軸とは平行でない方向に設けることによって収納された針管をプロテクターの軸中心から外れた位置に配置しうるプロテクター（例えば、特許文献４参照。）などが提案されている。   On the other hand, as a protector that can prevent the needle tube and blade edge of the winged needle housed in the protector from protruding from the slit, a protector having a lock mechanism that closes the slit and the tip opening after the winged needle is housed (for example, Patent Documents) 2), or a winged needle that does not require a wing insertion slit in the protector because the winged needle hub also functions as a protector (see, for example, Patent Document 3), the base end of the protector slit There has been proposed a protector (see, for example, Patent Document 4) in which the needle tube accommodated by providing the portion in a direction not parallel to the protector axis can be disposed at a position deviated from the protector axis center.

しかしながら、前記ロック機構を備えたプロテクターは、スリットから翼付針の針管および刃先が突出することを防止するためのロック機構を設ける必要があるため、構造が複雑で、かつ、成形が容易でない。
また、ハブがプロテクターの機能を兼ねた翼付針は、ハブ自体の形状が大きなものになるため、医療従事者による操作性が悪い上に、翼を用いて患者に固定することが困難である。
一方、針管をプロテクターの軸中心から外れた位置に配置して収納するプロテクターは、翼付針の針管および刃先がスリットから突出するおそれはないが、翼付針または該翼付針の基端側に接続されたチューブの動きにより、該針管の刃先がプロテクター内壁に突き刺さるおそれがあり、場合によっては該刃先が該プロテクターの側壁を貫通して突出するおそれがある。 However, the protector provided with the lock mechanism needs to be provided with a lock mechanism for preventing the needle tube and blade edge of the winged needle from protruding from the slit, so that the structure is complicated and the molding is not easy.
In addition, the winged needle in which the hub also functions as a protector has a large shape of the hub itself, so that the operability by the medical staff is poor and it is difficult to fix to the patient using the wing. .
On the other hand, a protector that stores and arranges the needle tube at a position off the center of the protector has no possibility that the needle tube and blade edge of the winged needle protrude from the slit, but the winged needle or the proximal end side of the winged needle There is a possibility that the cutting edge of the needle tube may pierce the inner wall of the protector due to the movement of the tube connected to, and in some cases, the cutting edge may protrude through the side wall of the protector.

特許第２６７３６８２号公報Japanese Patent No. 2673682 特開平６−６３１３７号公報JP-A-6-63137 特開平７−７５６７１号公報JP-A-7-75671 米国特許第５７７２６３８号明細書US Pat. No. 5,772,638

上記事情に鑑み、本発明の目的は、構造が簡単で操作性がよく、患者への固定が容易で、かつ、収納した翼付針の針管および刃先が突出するおそれがない翼付針用プロテクターを提供することにある。   In view of the above circumstances, an object of the present invention is to provide a protector for a winged needle that has a simple structure, is easy to operate, can be easily fixed to a patient, and has no possibility of protruding a needle tube and a blade edge of a stored winged needle. Is to provide.

本発明者は、種々鋭意検討した結果、側壁に設けられるスリットの基端部が本体の軸に平行に設けられ、かつ、該スリットの先端部が筒状本体の軸に平行でない方向に設けられたプロテクターが上記課題を解決しうるものであることを見出し、本発明に到達した。   As a result of various earnest studies, the inventor has provided the base end portion of the slit provided on the side wall in parallel to the axis of the main body and the tip end portion of the slit provided in a direction not parallel to the axis of the cylindrical main body. The present inventors have found that a protector can solve the above problems, and have reached the present invention.

すなわち、本発明は、
（１） 鋭利な刃先を有する針管と、該針管の基端部に固着されたハブと、該ハブに設けられた翼とを有する翼付針を収納しうるプロテクターであって、該プロテクターは、筒状の本体を有してなり、該本体の側壁に少なくとも３本のスリットが設けられてなり、該スリットは、翼付針の針管を本体の軸に平行に配置しうるように翼を受け入れる形状であって、本体の側壁に該本体の軸と平行な方向に設けられた閉鎖端部をもつスロット部分を有する基端部と、筒状本体の軸と平行なスリットを有する中間部と、最先端が、本体の先端開口部を形成するように本体の軸方向において外側へ向かって広がっていて、針管の刃先を受け入れる形状であって、かつ、逆への字形状またはアーチ形状を示すスリットを有する先端部とからなる翼付針用プロテクター、
（２） 前記スリットの基端部は、本体の軸に平行に設けられてなる、（１）に記載の翼付針用プロテクター、
（３） 前記スリットの基端部は、前記翼付針がプロテクター内に収納されたときに翼が配置される部分のみを構成する、（１）〜（２）のいずれかに記載の翼付針用プロテクター、
（４） 前記スリットの先端部は、翼付針がプロテクター内に収納されたときに針管の刃先が配置される部分のみを構成する（１）〜（３）のいずれかに記載の翼付針用プロテクター、
（５） 前記スリットは、さらに翼付針がプロテクター内に収納される位置で翼を位置決めしうる機構を有してなる（１）〜（４）のいずれかに記載の翼付針用プロテクター、
（６） 前記翼の位置決め機構は、翼が配置される部分のみスリットの幅が太く形成されるスロットによるものである、（５）に記載の翼付針用プロテクター、
（７） 前記翼の位置決め機構は、スリットの翼が配置される基端部の先端側に設けられる突起によるものである、（５）に記載の翼付針用プロテクター、
（８） 前記スリットは、スリットの向きが変化する部分がゆるいカーブを描くように形成されてなる（１）〜（７）のいずれかに記載の翼付針用プロテクター、
（９） 前記筒状の本体は、基端開口部を有する把持部をその基端部に結合してなる、（１）〜（８）のいずれかに記載の翼付針用プロテクターに関する。 That is, the present invention
(1) A protector capable of storing a winged needle having a needle tube having a sharp cutting edge, a hub fixed to a proximal end portion of the needle tube, and a wing provided on the hub, the protector comprising: It has a cylindrical main body, and at least three slits are provided on the side wall of the main body , and the slit receives the wing so that the needle tube of the winged needle can be arranged parallel to the axis of the main body. A base end portion having a slot portion having a closed end portion provided on a side wall of the main body in a direction parallel to the axis of the main body, and an intermediate portion having a slit parallel to the axis of the cylindrical main body, The most advanced slit extends outward in the axial direction of the main body so as to form the distal end opening of the main body, is a shape that accepts the cutting edge of the needle tube, and shows a reverse letter shape or an arch shape Wing needle needle comprising a tip having a tip Protector,
(2) The winged needle protector according to (1), wherein a base end portion of the slit is provided in parallel to the axis of the main body.
(3) The base end portion of the slit constitutes only a portion where the wing is disposed when the winged needle is housed in a protector, with the wing according to any one of (1) to (2) Needle protector,
(4) The tip of the slit constitutes only the part where the cutting edge of the needle tube is disposed when the winged needle is housed in the protector. (1) to (3) Protector for the
(5) The slit has a mechanism capable of positioning the wing at a position where the winged needle is housed in the protector, and the winged needle protector according to any one of (1) to (4) ,
(6) positioning mechanism of the blade is due to the slot width of the slit only part blade are disposed is formed thick, winged needle protector according to (5),
(7) The wing positioning mechanism is based on a protrusion provided on the distal end side of the base end where the blade of the slit is disposed, The winged needle protector according to (5) ,
(8) The winged needle protector according to any one of (1) to (7) , wherein the slit is formed so that a portion where the direction of the slit changes draws a loose curve.
(9) The cylindrical main body relates to the winged needle protector according to any one of (1) to (8) , in which a grip portion having a base end opening is coupled to the base end.

本発明のプロテクターは、本体の軸に平行に設けられた基端部と該軸に平行でない方向に設けられた先端部とからなるスリットを設けたことにより、プロテクター内に収納された翼付針の針管および刃先が該スリットから突出するおそれがない。また、前記プロテクターは該針管および刃先の突出を防止するために特別な機構を設ける必要がないため、構造が簡単で成形が容易に行える。さらに、本発明のプロテクターは、従来の翼付針に取り付けて使用することができるものであり、ハブの構造が大きくなることもないため、操作性がよく、患者への固定も容易に行いうる。   The protector of the present invention has a winged needle housed in the protector by providing a slit having a base end portion provided in parallel to the axis of the main body and a tip portion provided in a direction not parallel to the axis. There is no possibility that the needle tube and the blade edge protrude from the slit. Further, since the protector does not need to be provided with a special mechanism for preventing the needle tube and the cutting edge from protruding, the structure is simple and the molding can be easily performed. Furthermore, the protector of the present invention can be used by attaching to a conventional winged needle, and since the structure of the hub does not increase, the operability is good and the patient can be easily fixed. .

以下に、本発明のプロテクターを添付図面に示す好適な実施例に基づいて詳細に説明するが、本発明はこれらの実施例に限定されるものではない。
図１は本発明の翼付針用プロテクターの一実施例を示す斜視図であり、図２は図１に示されるプロテクターの側面図、図３は図１に示されるプロテクターの翼付針収納時の状態を示す説明図である。図４（ａ）は翼付針をプロテクターに収納する前の状態を示す説明図であり、図４（ｂ）は翼付針をプロテクターに収納した後の状態を示す説明図である。また、図５は翼付針用プロテクターの他の実施例（参考例）を示す側面図であり、図６は本発明の翼付針用プロテクターの別の実施例を示す側面図である。図７は本発明の翼付針用プロテクターのさらに別の実施例を示す側面図である。 Below, the protector of this invention is demonstrated in detail based on the suitable Example shown to an accompanying drawing, However, This invention is not limited to these Examples.
1 is a perspective view showing an embodiment of a winged needle protector according to the present invention, FIG. 2 is a side view of the protector shown in FIG. 1, and FIG. 3 is when the protector shown in FIG. It is explanatory drawing which shows the state of. FIG. 4A is an explanatory view showing a state before the winged needle is stored in the protector, and FIG. 4B is an explanatory view showing a state after the winged needle is stored in the protector. Further, FIG. 5 is a side view showing another embodiment of a winged needle protector (Reference Example), FIG. 6 is a side view showing another embodiment of a winged needle protector of the present invention. Figure 7 is a side view showing a further embodiment of the winged needle protector of the present invention.

図１および図２に示されるように、本発明のプロテクター１は、筒状の本体２を有してなる。該本体２の先端側の内径は、翼付針のハブおよび針管が挿通可能な大きさを有し、該本体２の基端側の内径は、該翼付針の基端側に接続されるチューブが挿通可能な大きさを有してなる。また、本体２の長さは、通常、翼付針の長さよりも長く、好ましくは約１０〜２０ｍｍ程度長く、厚さは約５〜２０ｍｍ程度である。   As shown in FIGS. 1 and 2, the protector 1 of the present invention has a cylindrical main body 2. The inner diameter on the distal end side of the main body 2 has such a size that the hub and needle tube of the winged needle can be inserted, and the inner diameter on the proximal end side of the main body 2 is connected to the proximal end side of the winged needle. The tube is large enough to be inserted. Moreover, the length of the main body 2 is usually longer than the length of the winged needle, preferably about 10 to 20 mm longer, and the thickness is about 5 to 20 mm.

前記本体２は、本体２の外径および内径が先端部に向かって減少するテーパー形状であってもよいし（図６参照）、または先端側に向かって径が減少するように、その先端部のみがテーパー状に形成されていてもよい（図１〜４、７参照）。筒状の本体２は、また、その軸方向において先端部に向かってテーパー状であり、好ましくは外側に向かって広がった先端開口部２２を有する。また、把持部４が本体２の基端部３１において結合され、基端開口部２１を有する。
前記本体２は、外力によって若干変形しうる柔軟な材料、たとえばポリプロピレン、ポリスチレン、ポリアセタール、ポリカーボネート、アクリロニトリル−ブタジエン−スチレン共重合体などの熱可塑性樹脂などによって成形されたものである。 The main body 2 may have a tapered shape in which the outer diameter and inner diameter of the main body 2 decrease toward the distal end (see FIG. 6), or the distal end thereof so that the diameter decreases toward the distal end side. Only may be formed in a tapered shape (see FIGS. 1 to 4 and 7). The cylindrical main body 2 is also tapered toward the tip in the axial direction, and preferably has a tip opening 22 that extends outward. Further, the grip portion 4 is coupled at the base end portion 31 of the main body 2 and has a base end opening 21.
The main body 2 is formed of a flexible material that can be slightly deformed by an external force, for example, a thermoplastic resin such as polypropylene, polystyrene, polyacetal, polycarbonate, acrylonitrile-butadiene-styrene copolymer, or the like.

前記本体２の側壁には、翼付針の翼を挿通するための少なくとも３つのスリット３、好ましくは、３〜５本のスリット３が設けられている。該スリット３は、基端部３１が該翼付針５の針管５２を本体２の軸に平行に配置しうるように翼５１を受け入れる形状を有してなり、例えば、本体２の軸に平行に設けられてなる（図１〜４、６参照）。該翼付針５の針管５２および刃先５３がプロテクター１内に収納される際に、該翼付針５の翼５１は該スリット３に先端側から進入し、該基端部３１の軸に平行な部分に配置される（図４（ａ）および（ｂ）参照）。該基端部３１が本体２の軸に平行であるため、プロテクター１内に収納された針管５２もまた本体２の軸に平行に配置される。 The side wall of the main body 2 is provided with at least three slits 3, preferably 3 to 5 slits 3, for inserting the wings of winged needles. The slit 3 has a shape in which the base end portion 31 receives the wing 51 so that the needle tube 52 of the winged needle 5 can be arranged parallel to the axis of the main body 2, for example, parallel to the axis of the main body 2. (Refer to FIGS. 1 to 4 and 6). When the needle tube 52 and the blade edge 53 of the winged needle 5 are housed in the protector 1, the wing 51 of the winged needle 5 enters the slit 3 from the distal end side and is parallel to the axis of the proximal end portion 31. (See FIGS. 4A and 4B). Since the proximal end portion 31 is parallel to the axis of the main body 2, the needle tube 52 housed in the protector 1 is also arranged parallel to the axis of the main body 2.

前記スリット３は、先端部３２が本体２の軸とは平行でない方向に設けられてなる。該スリット３に先端側から進入した翼５１は、該スリット３の先端部３２と基端部３１の境目、好ましくは中間部３３で進入方向が変化するが、該本体２が柔軟な材料で形成されているため、該スリット３を押し開きながら基端部３１に到達することが可能である。
図３に示されるように、前記プロテクター１内に収納された針管５２は本体２の軸に平行に配置されるため、翼付針５の刃先５３は該スリット３の先端部３２とは平行に配置されない。したがって、該針管５２の動きにより、該針管５２の刃先５３が該スリット３の先端部３２から突出するおそれはない。 The slit 3 is provided in a direction in which the distal end portion 32 is not parallel to the axis of the main body 2. The wing 51 that has entered the slit 3 from the distal end side changes its entry direction at the boundary between the distal end portion 32 and the proximal end portion 31 of the slit 3, preferably the intermediate portion 33, but the main body 2 is formed of a flexible material. Therefore, it is possible to reach the base end portion 31 while pushing the slit 3 open.
As shown in FIG. 3, the needle tube 52 housed in the protector 1 is arranged in parallel to the axis of the main body 2, so that the blade edge 53 of the winged needle 5 is parallel to the tip 32 of the slit 3. Not placed. Therefore, there is no possibility that the cutting edge 53 of the needle tube 52 protrudes from the distal end portion 32 of the slit 3 due to the movement of the needle tube 52.

前記スリット３の形状としては、図１〜４に示されるように、本体２の軸に平行でない方向に設けられる先端部３２が、翼付針がプロテクター１内に収納されたときに針管５２の刃先５３が配置される部分のみを構成し、その他の部分が本体２の軸と平行に設けられる基端部３１を構成していてもよい。   As shown in FIGS. 1 to 4, the shape of the slit 3 is such that the tip 32 provided in a direction not parallel to the axis of the main body 2 is formed by the needle tube 52 when the winged needle is housed in the protector 1. Only the portion where the cutting edge 53 is disposed may be configured, and the other portion may configure the base end portion 31 provided in parallel with the axis of the main body 2.

前記スリット３の軸に平行に設けられる基端部３１の形状は特に限定されないが、針管５２が完全にプロテクター１内に収納される位置で翼５１を位置決めしうるような機構が、基端部３１に設けられていることが好ましい。前記翼５１の位置決め機構としては、具体的には、図１〜５に示されるように、翼５１が配置される部分のみ、スリット３の幅を太くした形状（スロット）や、該翼５１が配置されるスリット３の基端部３１の先端側に、翼５１が先端側へ戻ることを防止しうるように突起３４が形成されたものがあげられる。   The shape of the base end portion 31 provided in parallel with the axis of the slit 3 is not particularly limited, but a mechanism capable of positioning the wing 51 at a position where the needle tube 52 is completely accommodated in the protector 1 is provided at the base end portion. 31 is preferably provided. As the positioning mechanism of the wing 51, specifically, as shown in FIGS. 1 to 5, only the portion where the wing 51 is disposed has a shape (slot) in which the width of the slit 3 is increased. An example in which a protrusion 34 is formed on the distal end side of the proximal end portion 31 of the slit 3 to be disposed so as to prevent the wing 51 from returning to the distal end side is mentioned.

前記スリット３の軸に平行でない方向に設けられる先端部３２の形状は、プロテクター１内に収納された針管５２の刃先５３が突出しない程度に軸に対して角度を有していればよい。したがって、図１〜４に示されるように、軸に対して一定の角度を有する直線状のスリットが複数個連続して形成されたものであってもよい。また、スリットの向きが変化する部分は、ゆるいカーブを描くようにスリットが形成されていると、翼５１の進入に際する抵抗が小さくなって好ましい。１つの具体例としては、先端部３２は逆への字形状またはアーチ形状を示すスリットを有し、針管５２の刃先５３を受け入れる形状を有する。   The shape of the distal end portion 32 provided in a direction not parallel to the axis of the slit 3 only needs to have an angle with respect to the axis so that the cutting edge 53 of the needle tube 52 accommodated in the protector 1 does not protrude. Accordingly, as shown in FIGS. 1 to 4, a plurality of linear slits having a certain angle with respect to the axis may be continuously formed. In addition, it is preferable that the slit in which the direction of the slit changes is formed so as to draw a loose curve, since the resistance when the blade 51 enters is reduced. As one specific example, the distal end portion 32 has a slit showing an inverted character shape or an arch shape, and has a shape for receiving the cutting edge 53 of the needle tube 52.

本発明のスリット３としては、好ましくは翼付針５の針管５２を本体２の軸に平行に配置しうるように翼５１を受け入れる形状であって、本体２の側壁に該本体２の軸と平行な方向に設けられた、閉鎖端部をもつスロット部分を有する基端部３１と、筒状本体２の軸と平行なスリットを有する中間部３３と、針管５２の刃先５３を受け入れる形状であって、逆への字形状またはアーチ形状を示すスリットを有する先端部３２とからなる。   The slit 3 of the present invention preferably has a shape for receiving the wing 51 so that the needle tube 52 of the winged needle 5 can be arranged in parallel to the axis of the main body 2, and the axis of the main body 2 is connected to the side wall of the main body 2. The base end portion 31 having a slot portion having a closed end portion provided in a parallel direction, the intermediate portion 33 having a slit parallel to the axis of the cylindrical main body 2, and the cutting edge 53 of the needle tube 52 are received. And a tip portion 32 having a slit indicating an inverted shape or an arch shape.

本発明のプロテクター１は、従来の一般的な翼付針５に取り付けて使用することが可能である。従来の翼付針５は、鋭利な刃先５３を有する針管５２と、該針管５２の基端部に固着されたハブ５４と、該ハブ５４に設けられた翼５１とを有している。しかし、本発明では、翼付針５は図示されたものに限定されない。該翼付針５は基端側にチューブ５５が接続されて使用されるが、本発明のプロテクター１は翼付針使用時には、該チューブ５５上に配置される（図４（ａ）参照）。前記プロテクター１は柔軟な材料で成形されているため、チューブ５５を狭持しうる程度に先端部の内径を十分に小さく構成することができる。したがって、翼付針使用時にプロテクター１がチューブ５５上を自由に移動することがなく、常に翼付針５を収納しやすい位置に配置させておくことができる。   The protector 1 of the present invention can be used by being attached to a conventional general winged needle 5. The conventional winged needle 5 has a needle tube 52 having a sharp cutting edge 53, a hub 54 fixed to the proximal end portion of the needle tube 52, and a wing 51 provided on the hub 54. However, in the present invention, the winged needle 5 is not limited to the illustrated one. The winged needle 5 is used with a tube 55 connected to the proximal end side, but the protector 1 of the present invention is disposed on the tube 55 when the winged needle is used (see FIG. 4A). Since the protector 1 is formed of a flexible material, the inner diameter of the tip portion can be made sufficiently small so that the tube 55 can be held. Therefore, the protector 1 does not move freely on the tube 55 when the winged needle is used, and the winged needle 5 can always be disposed at a position where it can be easily stored.

本発明のプロテクター１は翼付針使用後には、翼付針５に向かって先端側へスライドさせることにより、該翼付針５の翼５１がプロテクター１のスリット３の先端側から基端側に向かって進入し、翼付針５の針管５２および刃先５３をプロテクター１内に収納する（図４（ｂ）参照）。該プロテクター１内に収納された針管５２は、本体２の軸と平行に配置されるため、軸と平行でない方向に設けられたスリット３の先端部３２とは平行に配置されない。したがって、該針管５２の刃先５３がプロテクター１のスリット３から突出するおそれがない。   After using the winged needle, the protector 1 of the present invention is slid toward the distal end toward the winged needle 5 so that the wing 51 of the winged needle 5 moves from the distal end side to the proximal end side of the slit 3 of the protector 1. The needle tube 52 and the blade edge 53 of the winged needle 5 are accommodated in the protector 1 (see FIG. 4B). Since the needle tube 52 accommodated in the protector 1 is arranged in parallel with the axis of the main body 2, it is not arranged in parallel with the distal end portion 32 of the slit 3 provided in a direction not parallel to the axis. Therefore, there is no possibility that the cutting edge 53 of the needle tube 52 protrudes from the slit 3 of the protector 1.

本発明の翼付針用プロテクターの一実施例を示す斜視図である。It is a perspective view which shows one Example of the protector for winged needles of this invention. 図１に示されるプロテクターの側面図である。It is a side view of the protector shown by FIG. 図１に示されるプロテクターの翼付針収納時の状態を示す説明図である。It is explanatory drawing which shows the state at the time of accommodation of the winged needle | hook of the protector shown by FIG. 図１に示されるプロテクターの翼付針収納前の状態（ａ）および収納後の状態（ｂ）を示す説明図である。It is explanatory drawing which shows the state (a) before accommodation of the winged needle | hook of the protector shown in FIG. 1, and the state (b) after accommodation. 翼付針用プロテクターの他の実施例（参考例）を示す側面図である。It is a side view which shows the other Example (reference example) of the protector for winged needles. 本発明の翼付針用プロテクターの別の実施例を示す側面図である。It is a side view which shows another Example of the protector for winged needles of this invention. 本発明の翼付針用プロテクターのさらに別の実施例を示す側面図である。It is a side view which shows another Example of the protector for winged needles of this invention.

符号の説明Explanation of symbols

１ プロテクター
２ 本体
３ スリット
３１ 基端部
３２ 先端部
３３ 中間部
３４ 突起
４ 把持部
５ 翼付針
５１ 翼
５２ 針管
５３ 刃先
５４ ハブ
５５ チューブ DESCRIPTION OF SYMBOLS 1 Protector 2 Main body 3 Slit 31 Base end part 32 Front end part 33 Intermediate part 34 Projection 4 Gripping part 5 Wing needle 51 Wing 52 Needle tube 53 Cutting edge 54 Hub 55 Tube

Claims (8)

鋭利な刃先を有する針管と、該針管の基端部に固着されたハブと、該ハブに設けられた翼とを有する翼付針を収納しうるプロテクターであって、該プロテクターは、筒状の本体を有してなり、該本体の側壁に少なくとも３本のスリットが設けられてなり、該スリットは、翼付針の針管を本体の縦軸に平行に配置しうるように翼を受け入れる形状であって、本体の側壁に該本体の縦軸と平行な方向に設けられた閉鎖端部をもつスロット部分を有する基端部と、筒状本体の縦軸と平行なスリットを有する中間部と、翼付針がプロテクター内に収納されたときに針管の刃先が配置される、逆への字形状またはアーチ形状を示すスリットを有する先端部とからなり、そして、前記先端部スリットの最先端が本体の先端開口部を形成するように本体の縦軸方向において外側へ向かって広がっている翼付針用プロテクター。 A protector capable of storing a winged needle having a needle tube having a sharp cutting edge, a hub fixed to a proximal end portion of the needle tube, and a wing provided on the hub, wherein the protector has a cylindrical shape A main body, and at least three slits are provided in the side wall of the main body, and the slits are shaped to receive the wings so that the needle tube of the winged needle can be arranged parallel to the longitudinal axis of the main body. there, the intermediate portion having a proximal end portion having a slot portion having a longitudinal axis and a closed end portion provided in a direction parallel to the body on the side wall of the main body, a longitudinal axis parallel to the slit of the tubular body, the cutting edge of the needle tube when the winged needle is accommodated in the protector is placed, Ri Do and a distal portion having a slit indicating the shape or arcuate shape of the hand, and, the leading edge of the tip portion slit The vertical position of the main body so as to form the tip opening of the main body Winged needle protector that has spread toward the outside in the direction. 前記スリットの基端部は、本体の縦軸に平行に設けられてなる、請求項１に記載の翼付針用プロテクター。 The winged needle protector according to claim 1, wherein a base end portion of the slit is provided in parallel to a longitudinal axis of the main body. 前記スリットの基端部は、前記翼付針がプロテクター内に収納されたときに翼が配置される部分のみを構成する、請求項１〜２のいずれかに記載の翼付針用プロテクター。   The winged needle protector according to any one of claims 1 to 2, wherein a base end portion of the slit constitutes only a portion where the wing is disposed when the winged needle is housed in a protector. 前記スリットは、さらに翼付針がプロテクター内に収納される位置で翼を位置決めしうる機構を有してなる請求項１〜３のいずれかに記載の翼付針用プロテクター。 The winged needle protector according to any one of claims 1 to 3 , wherein the slit further includes a mechanism capable of positioning the wing at a position where the winged needle is accommodated in the protector. 前記翼の位置決め機構は、翼が配置される部分のみスリットの幅が太く形成されるスロットによるものである、請求項４に記載の翼付針用プロテクター。 The winged needle protector according to claim 4 , wherein the wing positioning mechanism is a slot in which a slit is formed to have a large width only at a portion where the wing is disposed. 前記翼の位置決め機構は、スリットの翼が配置される基端部の先端側に設けられる突起によるものである、請求項４に記載の翼付針用プロテクター。 5. The winged needle protector according to claim 4 , wherein the wing positioning mechanism is a projection provided on a distal end side of a base end portion on which a wing of a slit is arranged. 前記スリットは、スリットの向きが変化する部分がゆるいカーブを描くように形成されてなる請求項１〜６のいずれかに記載の翼付針用プロテクター。 The winged needle protector according to any one of claims 1 to 6 , wherein the slit is formed so that a portion where the direction of the slit changes draws a loose curve. 前記筒状の本体は、基端開口部を有する把持部をその基端部に結合してなる、請求項１〜７のいずれかに記載の翼付針用プロテクター。 The winged needle protector according to any one of claims 1 to 7 , wherein the cylindrical main body is formed by coupling a grip portion having a base end opening portion to the base end portion.
JP2004080261A 2003-03-20 2004-03-19 Wing needle protector Expired - Lifetime JP4029851B2 (en)

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BRPI0616265B8 (en) * 2005-09-22 2021-06-22 Kpr Us Llc manually retracted safety needle with rigid fin structure
EP2636421B1 (en) * 2012-03-05 2017-08-23 Dentsply IH AB Catheter with partially slitted insertion aid
JP6235030B2 (en) * 2012-10-23 2017-11-22 ポリー メディキュア リミテッド Needle safety assembly
KR102115374B1 (en) * 2016-10-25 2020-05-26 (주)한빛상사 needle sheath, and for wing typic catheter assembleassembly having the same
TWI720808B (en) * 2020-02-05 2021-03-01 善德生化科技股份有限公司 Protective sleeve for wing needle
CN115835899A (en) 2020-06-22 2023-03-21 尼普洛株式会社 Outer needle assembly
WO2024010046A1 (en) * 2022-07-05 2024-01-11 ニプロ株式会社 Needle tip protector for winged needles

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