JP3197175U - Indwelling needle - Google Patents

Indwelling needle Download PDF

Info

Publication number
JP3197175U
JP3197175U JP2015000632U JP2015000632U JP3197175U JP 3197175 U JP3197175 U JP 3197175U JP 2015000632 U JP2015000632 U JP 2015000632U JP 2015000632 U JP2015000632 U JP 2015000632U JP 3197175 U JP3197175 U JP 3197175U
Authority
JP
Japan
Prior art keywords
needle
base
caulking pin
synthetic resin
indwelling
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
JP2015000632U
Other languages
Japanese (ja)
Inventor
典雄 宮城
典雄 宮城
Original Assignee
典雄 宮城
典雄 宮城
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
Application filed by 典雄 宮城, 典雄 宮城 filed Critical 典雄 宮城
Priority to JP2015000632U priority Critical patent/JP3197175U/en
Application granted granted Critical
Publication of JP3197175U publication Critical patent/JP3197175U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

【課題】人体内に流れ込み問題を生じるおそれのある金属片の発生がないように、内針及びカシメピンを合成樹脂にて製造した留置針を提供する。【解決手段】液、輸血、採血、人工透析等を行うために使用され、内部空間21を有する基部22と、基部に配されて内部空間の一端を閉鎖する内栓25と、基部の先端から延出し、内部空間と連通する貫通孔27を有する合成樹脂からなる外針24と、内栓、内部空間及び貫通孔を貫通して外針から延出する内針31と、基部に配され、内針を基部に移動自在に保持するカシメピン26とを少なくとも具備する留置針1において、内針31及びカシメピン26を、合成樹脂によって形成した。【選択図】図1An indwelling needle in which an inner needle and a caulking pin are made of a synthetic resin so as to prevent generation of a metal piece that may flow into the human body and cause a problem. A base 22 having an internal space 21 used for performing liquid, blood transfusion, blood collection, artificial dialysis, etc., an inner plug 25 disposed on the base and closing one end of the internal space, and a tip of the base An outer needle 24 made of a synthetic resin having a through-hole 27 extending and communicating with the inner space, an inner needle 31 penetrating from the outer needle through the inner plug, the inner space and the through-hole, In the indwelling needle 1 including at least the caulking pin 26 that holds the inner needle movably at the base, the inner needle 31 and the caulking pin 26 are formed of a synthetic resin. [Selection] Figure 1

Description

本考案は、輸液、輸血、採血、人工透析等を行うために使用される留置針に関する。   The present invention relates to an indwelling needle used for performing infusion, blood transfusion, blood collection, artificial dialysis and the like.

特許文献1(実開平2−1160号公報)に開示される留置針は、金属製の内針とプラスチック製の外針を有し、前記プラスチック針の針基に折り曲げ可能な程度の硬度を有する半硬質の翼を一体的に形成したものである。このように、この特許文献1は、留置針が、金属製の内針とプラスチック製の外針を具備することを開示する。   The indwelling needle disclosed in Patent Document 1 (Japanese Utility Model Laid-Open No. 2-1160) has a metal inner needle and a plastic outer needle, and has a hardness that can be bent to the needle base of the plastic needle. A semi-rigid wing is integrally formed. Thus, this patent document 1 discloses that the indwelling needle comprises a metal inner needle and a plastic outer needle.

特許文献2(特開2004−305467号公報)は、留置針及びハウジングが、同一のプラスチック材料により、それぞれ射出成形されることを開示する。また、この特許文献2は、雌ルアーのガイド、栓体、留置針に挿脱自在に挿通されて、留置針から前方に突出する穿刺針が開示され、この穿刺針がステンレスやニッケル・チタン合金により一体に形成されていることが開示される。また、穿刺針を保持するガイドが、ステンレスやニッケル・チタン合金等により一体形成されていることも開示する。   Patent document 2 (Unexamined-Japanese-Patent No. 2004-305467) discloses that an indwelling needle and a housing are each injection-molded with the same plastic material. Further, this Patent Document 2 discloses a puncture needle that is detachably inserted into a female luer guide, a plug, and an indwelling needle and protrudes forward from the indwelling needle. The puncture needle is made of stainless steel or nickel / titanium alloy. It is disclosed that they are integrally formed. It is also disclosed that the guide for holding the puncture needle is integrally formed of stainless steel, nickel / titanium alloy, or the like.

特許文献3(特開2006−246985号公報)は、留置針が、プラスチック製の外筒針と、アルミ、アルミ合金、チタン及びチタン合金などからなる金属製の内針とを有することを開示する。   Patent document 3 (Unexamined-Japanese-Patent No. 2006-246985) discloses that the indwelling needle has a plastic outer cylinder needle and a metal inner needle made of aluminum, aluminum alloy, titanium, titanium alloy, or the like.

実開平2−1160号公報Japanese Utility Model Publication No.2-1160 特開2004−305467号公報JP 2004-305467 A 特開2006−246985号公報JP 2006-246985 A

以上のように、従来の留置針において、外針がプラスチック製であるのに対して内針は金属製であり、この金属製の内針をガイドするガイド部、いわゆるカシメピンも金属製である場合が多い。この場合、内針を外針に対して抜き差しすると、内針と前記カシメピンとが擦れることから、微細な金属片が発生するというおそれが生じる。この微細な金属片が輸血血液や薬剤に紛れて人体内に流れ込み問題を生じる場合が想定される。さらに、これを防止するためにカシメピンの内側や内針の外側にシリコンを塗布して金属と金属の摩擦発生を防ぐ対策をとっているが、余分な工程とコストアップにつながるという問題点がある。   As described above, in the conventional indwelling needle, the outer needle is made of plastic, whereas the inner needle is made of metal, and the guide portion for guiding the metal inner needle, so-called caulking pin, is also made of metal. There are many. In this case, when the inner needle is inserted into and removed from the outer needle, the inner needle and the caulking pin rub against each other, so that a fine metal piece may be generated. It is assumed that this fine metal piece is mixed with blood transfusions or drugs and flows into the human body, causing problems. Furthermore, in order to prevent this, silicon is applied to the inner side of the caulking pin and the outer side of the inner needle to prevent the friction between metal and metal, but there is a problem that it leads to an extra process and cost increase. .

以上のことから、本考案は、留置針において、金属片の発生がないように、内針及びカシメピンを合成樹脂にて製造した留置針を提供するものである。   In view of the above, the present invention provides an indwelling needle in which an inner needle and a caulking pin are manufactured from a synthetic resin so that no metal pieces are generated in the indwelling needle.

本考案は、輸液、輸血、採血、人工透析等を行うために使用され、内部空間を有する基部と、該基部に配されて前記内部空間の一端を閉鎖する内栓と、前記基部の先端から延出し、前記内部空間と連通する貫通孔を有する合成樹脂からなる外針と、前記内栓、前記内部空間及び前記貫通孔を貫通して前記外針から延出する内針と、前記基部に配され、前記内針を前記基部に移動自在に保持するカシメピンとを少なくとも具備する留置針において、前記内針及び前記カシメピンを、合成樹脂によって形成したことにある。   The present invention is used for performing infusion, blood transfusion, blood collection, artificial dialysis, etc., and has a base portion having an internal space, an inner plug disposed on the base portion and closing one end of the internal space, from the tip of the base portion An outer needle made of a synthetic resin having a through hole extending and communicating with the inner space; an inner needle extending through the inner plug, the inner space and the through hole, and extending from the outer needle; and In the indwelling needle that is arranged and includes at least a caulking pin that holds the inner needle movably on the base, the inner needle and the caulking pin are formed of a synthetic resin.

これによって、内針と内針を移動自在に保持するカシメピンとを合成樹脂によって形成したことにより、金属片の発生を防止できるものである。   As a result, the formation of the metal piece can be prevented by forming the inner needle and the caulking pin for holding the inner needle movably with the synthetic resin.

本考案によれば、内針と内針を移動自在に保持するカシメピンとを合成樹脂により形成したことにより、金属片の発生を防止できるため、微細な金属片の混入によって被験者の身体に及ぼす悪影響を防止できるものである。   According to the present invention, the formation of the metal piece can be prevented by forming the inner needle and the caulking pin that holds the inner needle movably with the synthetic resin, and therefore the adverse effect on the body of the subject due to the mixing of the fine metal piece. Can be prevented.

図1は本考案に係る留置針の一例を示した説明断面図である。FIG. 1 is an explanatory sectional view showing an example of an indwelling needle according to the present invention. 図2は、図1で示された例に基づく留置針の内針を引き抜く段階を示した説明断面図である。FIG. 2 is an explanatory cross-sectional view showing a step of pulling out the inner needle of the indwelling needle based on the example shown in FIG. 図3(a)は、図1で示した例に基づく留置針の外針部を示した説明断面図であり、図3(b)は、図1で示した例に基づく留置針の内針部を示した説明断面図である。3A is an explanatory sectional view showing an outer needle portion of the indwelling needle based on the example shown in FIG. 1, and FIG. 3B is an inner needle of the indwelling needle based on the example shown in FIG. It is explanatory sectional drawing which showed the part.

以下、本考案の実施例に係る留置針について、その一例を図面により説明する。   Hereinafter, an example of an indwelling needle according to an embodiment of the present invention will be described with reference to the drawings.

本考案の一例に係る留置針1は、図1乃至図3に示すように、外針部2と内針部3とによって構成される。   An indwelling needle 1 according to an example of the present invention includes an outer needle portion 2 and an inner needle portion 3 as shown in FIGS.

外針部2は、例えば図3(a)に示すように、内部空間21を画成する円筒状の基部22と、この基部22の先端側に漸次縮径されて形成された先端部23と、この先端部23から突出するように形成された外針24と、前記内部空間21の一方を画成する内栓(内栓ゴム)25と、前記先端部23に固着され、下記する内針31を移動自在に保持するカシメピン26とを少なくとも具備する。この実施例では、カシメピン26と前記先端部23との間で、前記外針24の内側端を保持するようにしたものである。   For example, as shown in FIG. 3A, the outer needle portion 2 includes a cylindrical base portion 22 that defines an internal space 21, and a distal end portion 23 that is formed by being gradually reduced in diameter on the distal end side of the base portion 22. The outer needle 24 formed so as to protrude from the distal end portion 23, the inner plug (inner plug rubber) 25 defining one of the inner spaces 21, and the inner needle described below are fixed to the distal end portion 23. And a caulking pin 26 that holds the movably 31 at least. In this embodiment, the inner end of the outer needle 24 is held between the caulking pin 26 and the distal end portion 23.

また、前記内部空間21は、例えば、輸液や輸血等を行う場合に、薬剤や血液を供給するチューブと接続されて、薬剤や血液が収容されるものである。さらに、前記内栓ゴム25は、内針31が内栓ゴム25から引き抜かれた場合に、その弾性力によって内針31が通過するための挿通孔28が閉鎖され、内部空間21からの漏れを防止するようになっている。   Moreover, the said internal space 21 is connected with the tube which supplies a chemical | medical agent and blood, for example, when performing infusion, blood transfusion, etc., and a chemical | medical agent and blood are accommodated. Further, when the inner needle 31 is pulled out from the inner plug rubber 25, the inner plug rubber 25 closes the insertion hole 28 through which the inner needle 31 passes due to its elastic force, and leaks from the inner space 21. It comes to prevent.

前記内針部3は、前記内栓ゴム25から内部空間21、さらにカシメピン26を介して、前記外針24の貫通孔27を貫通して、外針24から延出する内針31と、この内針31の基端部31aを固定保持すると共に前記基部22の後端に装着される基端部32とを少なくとも具備するものであり、この実施例では、さらに前記基端部32に、内針31を抜き差しするためのノブ33を具備するものである。   The inner needle portion 3 includes an inner needle 31 extending from the outer needle 24 through the through hole 27 of the outer needle 24 through the inner space 21 and the caulking pin 26 from the inner plug rubber 25. The base end portion 31a of the inner needle 31 is fixedly held and at least a base end portion 32 attached to the rear end of the base portion 22 is provided. In this embodiment, the base end portion 32 A knob 33 for inserting and removing the needle 31 is provided.

従来、外針部2の基部22、外針24は合成樹脂によって成形されるものであり、内針部3の基端部32及びノブ33も同様に合成樹脂によって成形されている。   Conventionally, the base portion 22 and the outer needle 24 of the outer needle portion 2 are formed of synthetic resin, and the proximal end portion 32 and the knob 33 of the inner needle portion 3 are also formed of synthetic resin.

本考案では、従来金属製であった内針31及びカシメピン26を合成樹脂で形成したものである。これによって、図2に示すように、本考案に係る留置針1は、内針部3を外針部2に対して着脱する場合の微細な金属片の発生を完全に防止することができるものである。   In the present invention, the inner needle 31 and the caulking pin 26, which are conventionally made of metal, are formed of a synthetic resin. Thereby, as shown in FIG. 2, the indwelling needle 1 according to the present invention can completely prevent the generation of fine metal pieces when the inner needle portion 3 is attached to and detached from the outer needle portion 2. It is.

1 留置針
2 外針部
3 内針部
21 内部空間
22 基部
23 先端部
24 外針
25 内栓ゴム
26 カシメピン
27 貫通孔
31 内針
32 基端部
33 ノブ
DESCRIPTION OF SYMBOLS 1 Indwelling needle 2 Outer needle part 3 Inner needle part 21 Internal space 22 Base part 23 Tip part 24 Outer needle 25 Inner plug rubber 26 Caulking pin 27 Through-hole 31 Inner needle 32 Base end part 33 Knob

Claims (1)

輸液、輸血、採血、人工透析等を行うために使用され、内部空間を有する基部と、該基部に配されて前記内部空間の一端を閉鎖する内栓と、前記基部の先端から延出し、前記内部空間と連通する貫通孔を有する合成樹脂からなる外針と、前記内栓、前記内部空間及び前記貫通孔を貫通して前記外針から延出する内針と、前記基部に配され、前記内針を前記基部に移動自在に保持するカシメピンとを少なくとも具備する留置針において、
前記内針及び前記カシメピンを、合成樹脂によって形成したことを特徴とする留置針。
Used for performing infusion, blood transfusion, blood collection, artificial dialysis, etc., a base having an internal space, an inner plug disposed on the base and closing one end of the internal space, and extending from the tip of the base, An outer needle made of a synthetic resin having a through-hole communicating with the internal space, an inner needle extending through the inner plug, the internal space and the through-hole, and extending from the outer needle, and arranged on the base, In the indwelling needle comprising at least a caulking pin that holds the inner needle movably on the base,
The indwelling needle characterized in that the inner needle and the caulking pin are formed of a synthetic resin.
JP2015000632U 2015-02-12 2015-02-12 Indwelling needle Expired - Fee Related JP3197175U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2015000632U JP3197175U (en) 2015-02-12 2015-02-12 Indwelling needle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2015000632U JP3197175U (en) 2015-02-12 2015-02-12 Indwelling needle

Publications (1)

Publication Number Publication Date
JP3197175U true JP3197175U (en) 2015-04-23

Family

ID=52986754

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2015000632U Expired - Fee Related JP3197175U (en) 2015-02-12 2015-02-12 Indwelling needle

Country Status (1)

Country Link
JP (1) JP3197175U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018189821A1 (en) * 2017-04-12 2018-10-18 典雄 宮城 Method for forming check valve and indwelling needle having check valve formed by this method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018189821A1 (en) * 2017-04-12 2018-10-18 典雄 宮城 Method for forming check valve and indwelling needle having check valve formed by this method
JPWO2018189821A1 (en) * 2017-04-12 2020-02-20 宮城 典雄 Method of forming check valve and indwelling needle having check valve formed by this method

Similar Documents

Publication Publication Date Title
US11931532B2 (en) Multi-use blood control safety catheter assembly
JP5594520B2 (en) Indwelling needle device
EP1998836B1 (en) Sealing catheter hub attachment
JP6138921B2 (en) Catheter assembly
CN105530989B (en) Catheter valve is controlled using the blood of the actuator with flexible retention arm
JP7174353B2 (en) Valved needle assembly and indwelling needle assembly
JP2004305466A (en) Medical connector set and catheter set for dwelling using the same
JP6617397B2 (en) Hub assembly with bulkhead member
JP2018089070A (en) Needle assembly
EP3369447A1 (en) Grip and syringe assembly
US7060060B1 (en) Dialysis procedure catheter
JP3197175U (en) Indwelling needle
JP7174945B2 (en) indwelling needle device
JP7134410B2 (en) Indwelling needle and indwelling needle assembly
JP6678379B2 (en) Hub assembly with bulkhead
JP3201929U (en) Indwelling needle
JP3199368U (en) Indwelling needle
JP3235889U (en) Indwelling needle
CN209790523U (en) Remaining needle for nuclear magnetic resonance
JPWO2015098590A1 (en) Indwelling needle assembly
WO2018189821A1 (en) Method for forming check valve and indwelling needle having check valve formed by this method
CN114269408B (en) Medical needle and method for manufacturing medical needle
JP3230142U (en) Contrast injection catheter
JP6946634B2 (en) Indwelling needle assembly
JP3116680U (en) Caulking pin for indwelling needle

Legal Events

Date Code Title Description
R150 Certificate of patent or registration of utility model

Ref document number: 3197175

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

LAPS Cancellation because of no payment of annual fees