JPH0613741Y2 - Tube with medical puncture needle - Google Patents
Tube with medical puncture needleInfo
- Publication number
- JPH0613741Y2 JPH0613741Y2 JP1987162470U JP16247087U JPH0613741Y2 JP H0613741 Y2 JPH0613741 Y2 JP H0613741Y2 JP 1987162470 U JP1987162470 U JP 1987162470U JP 16247087 U JP16247087 U JP 16247087U JP H0613741 Y2 JPH0613741 Y2 JP H0613741Y2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- puncture needle
- handle
- inner tube
- tip
- 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 - Lifetime
Links
- 239000003814 drug Substances 0.000 description 3
- 229940079593 drug Drugs 0.000 description 3
- -1 fluororesin Polymers 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 208000000624 Esophageal and Gastric Varices Diseases 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 208000007536 Thrombosis Diseases 0.000 description 1
- 206010046996 Varicose vein Diseases 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 208000024170 esophageal varices Diseases 0.000 description 1
- 201000010120 esophageal varix Diseases 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007632 sclerotherapy Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、食道静脈瘤等の処理において、静脈瘤に薬剤
を注入して局所的に血栓を生じさせ硬化させる療法に用
いる穿刺針用具に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a puncture needle device used for therapy of injecting a drug into a varicose vein to locally cause a blood clot to cure in the treatment of an esophageal varix or the like. It is a thing.
従来、これらの硬化療法に用いる穿刺針用具としては、
細径のチューブからなる外管および内管から構成されて
おり、内管チューブは先端に穿刺針、後端には薬剤注入
口を有し、外管チューブは後端部より内管チューブを挿
入させ、内管チューブ後端の薬剤注入口部を外管チュー
ブの後端部に圧入接合できる構造のものが市販されてい
る。これらの穿刺針用具は、上述した如く、内管チュー
ブを前進、後退させることにより、先端部の針を外管チ
ューブの先端部より出し入れして使用している。しか
し、これらの穿刺針の内管チューブの前進限を決めるの
は、外管チューブの後端部に対する圧入接合のみで、固
定も確実でなく、また、後退限も定まる構造になってい
ないため、操作性、安全性に欠ける問題があった。Conventionally, as a puncture needle tool used for these sclerotherapy,
It consists of an outer tube and an inner tube consisting of a small diameter tube.The inner tube has a puncture needle at the tip and a drug injection port at the rear end, and the outer tube inserts the inner tube from the rear end. Then, a structure in which the drug injection port at the rear end of the inner tube can be press-fitted and joined to the rear end of the outer tube is commercially available. As described above, these puncture needle tools are used by advancing and retracting the inner tube so that the needle at the tip is taken in and out from the tip of the outer tube. However, the advance limit of the inner tube of these puncture needles is determined only by press-fitting and joining to the rear end of the outer tube, fixing is not reliable, and the retract limit is not fixed. There was a problem of lack of operability and safety.
本考案は、従来の穿刺針用具のこのような問題点を解消
して、内管チューブの前進限と後退限を明確に決めると
共に、それぞれの位置で確実に固定することができ、操
作性と安全性に優れた医療用穿刺針付チューブを提供す
ることを目的としたものである。The present invention solves the above problems of the conventional puncture needle device, clearly determines the forward and backward limits of the inner tube, and securely fixes them at their respective positions. It is intended to provide a tube with a medical puncture needle having excellent safety.
以下、図面を用いて本考案を詳細に説明する。 Hereinafter, the present invention will be described in detail with reference to the drawings.
本考案の穿刺針付チューブは、先端に穿刺針(1)を有
し、後端には内側把手(5)を取付けた内管チューブ(2)
と、先端には穿刺針(1)の突出量を一定にするためのス
トッパー(4)を有し、後端には外側把手(6)を取付けた外
管チューブ(3)とから構成され、内管チューブ(2)は外管
チューブ(3)の内腔に前進、後退可能に収納されてい
る。The tube with a puncture needle of the present invention has an inner tube (2) having a puncture needle (1) at the tip and an inner handle (5) attached at the rear end.
And an outer tube (3) having a stopper (4) at the tip for making the protrusion amount of the puncture needle (1) constant and an outer handle (6) attached at the rear end, The inner tube (2) is housed in the inner cavity of the outer tube (3) so as to be able to move forward and backward.
外側把手(6)の側壁には、内管チューブ(2)もしくは穿刺
針(1)の位置を固定するためのロック溝(11)、(12)を有す
るスライド溝(9)が設けられている。これらの溝は、内
側把手(5)の側部に設けられた突起(8)を嵌合させ、内側
把手(5)をスライド溝(9)に沿って前後にスライドさせる
と共に、収納ロック溝(11)は穿刺針(1)が最も後退した
位置でロックし、また、先端ロック溝(12)は穿刺針(1)
が最も前進し、突出した位置でロックする働きを有す
る。尚、これらの操作は、一方の手で外側把手(6)を保
持し、もう一方の手で内側把手(5)の後端部を握り、両
手で前進後退させる方法に限られるものではなく、突起
(8)の頭部に指先を当てて内側把手(5)を前後にスライド
させる方法であれば、片手で操作することも可能であ
る。The side wall of the outer handle (6) is provided with a slide groove (9) having lock grooves (11) and (12) for fixing the position of the inner tube (2) or the puncture needle (1). . These grooves are fitted with protrusions (8) provided on the sides of the inner handle (5), slide the inner handle (5) back and forth along the slide groove (9), and store lock groove ( 11) Locks the puncture needle (1) at the most retracted position, and the tip lock groove (12) is the puncture needle (1).
Has the function of locking in the most advanced and protruding position. Incidentally, these operations are not limited to a method of holding the outer handle (6) with one hand, grasping the rear end of the inner handle (5) with the other hand, and moving forward and backward with both hands. Protrusion
If the inner handle (5) is slid back and forth by applying a fingertip to the head of (8), it can be operated with one hand.
第１図および第２図は本考案の一実施例となる穿刺針付
チューブの全体の概要図で、第１図は穿刺針(1)を後退
させ、内側把手(5)の側部に設けられた突起(8)を外側把
手(6)の収納ロック溝(11)にロックして固定した状態、
第２図は穿刺針(1)を最先端まで前進させ、突起(8)を先
端ロック溝(12)にロックして固定した状態を示してい
る。また、第３図はスライド溝(9)の中間の位置に中間
ロック溝(12)を有する他の実施例で、目的によってある
一定の位置まで穿刺針(1)を前進させて針の出具合を調
整し、ロックした状態を示している。中間ロック溝(13)
は調整に必要な任意の数備えてあってもよく、数によっ
てはスライド溝(9)の両側に設けてもなんら差支えな
い。また、外側把手(6)の後端部は、収納ロック溝(11)
に続く後方側に末端溝(14)を設けて端を開口させること
により、製作時に内管チューブを外管チューブ内に組込
むことができる配慮がしてある。もちろん、組込んだら
逆に内管チューブを外し難い仕掛を末端側の溝(14)に付
けてもなんら差支えない。1 and 2 are schematic views of the entire tube with a puncture needle according to an embodiment of the present invention. In FIG. 1, the puncture needle (1) is retracted and provided on the side of the inner handle (5). The protrusion (8) is locked and locked in the storage lock groove (11) of the outer handle (6),
FIG. 2 shows a state in which the puncture needle (1) is advanced to the tip and the projection (8) is locked and fixed in the tip lock groove (12). FIG. 3 shows another embodiment having an intermediate lock groove (12) in the middle position of the slide groove (9). The puncture needle (1) is advanced to a certain position depending on the purpose, and the needle is pushed out. Is adjusted and locked. Intermediate Lock Groove (13)
May be provided in any number necessary for adjustment, and depending on the number, they may be provided on both sides of the slide groove (9). In addition, the rear end of the outer handle (6) has a storage lock groove (11).
It is considered that the inner tube can be incorporated into the outer tube at the time of manufacture by providing an end groove (14) on the rear side subsequent to and opening the end. Of course, once assembled, it does not matter if a device that makes it difficult to remove the inner tube is attached to the groove (14) on the terminal side.
内側把手(5)の先端部は、第４図(a)に示したように内側
チューブ(2)と接続導通しており、後端部のルアー嵌合
コネクター部(7)迄一体となり導通しており、コネクタ
ー(7)からのシリンジ等による薬液等の注入、流通が可
能な構造になっている。また、外側把手(6)の先端部は
外側チューブ(3)と接続導通しており、接続部近傍には
外側チューブ(3)の太さなどによって必要な場合には、
折れ曲りを防ぐための保護管(10)を取り付けてもよい。
内側把手(5)および外側把手(6)の外形形状は、例えば、
第４図(a)のＡ−Ａ′およびＢ−Ｂ′における断面図と
して示した(b)、(c)の様な把み易い形状とするのが望ま
しいが、円形や円形の表面に凹凸を付けた形であっても
何ら差支えはなく、特に限定されるものではない。ま
た、外管チューブ(3)の先端部には、第５図に示したよ
うに、穿刺針(1)を通し、内管チューブ(2)は通さない大
きさの穴を有するストッパー(4)が取付けられている。As shown in Fig. 4 (a), the tip of the inner handle (5) is connected to the inner tube (2) for conduction, and the luer fitting connector (7) at the rear end is also integrally conducted. The connector (7) has a structure such that a chemical solution or the like can be injected and distributed by a syringe or the like. In addition, the tip of the outer handle (6) is connected to the outer tube (3) for conduction, and if necessary due to the thickness of the outer tube (3), etc. near the connection,
A protective tube (10) may be attached to prevent bending.
The outer shapes of the inner handle (5) and the outer handle (6) are, for example,
It is desirable to have a shape that is easy to grasp, such as those shown in (b) and (c) of FIG. 4 (a), which are sectional views taken along the lines AA 'and BB'. There is no problem even if the shape is attached, and it is not particularly limited. Further, as shown in FIG. 5, a stopper (4) having a hole through which the puncture needle (1) is passed and the inner tube (2) is not passed is provided at the tip of the outer tube (3). Is installed.
これらの内管チューブ(2)および外管チューブ(3)の材質
は、フッ素樹脂、ポリプロピレン、ポリエチレン等の熱
可塑性樹脂が適しており、機能上からは滑り性、透明性
が優れているものが好ましい。また、把手部の材質は特
別の規定はないが製作上の利点からＡＢＳ樹脂、ポリカ
ーボネート等の熱可塑性樹脂が好ましい。Suitable materials for the inner tube (2) and the outer tube (3) are thermoplastic resins such as fluororesin, polypropylene and polyethylene, and those with excellent slidability and transparency are functionally preferred. preferable. The material of the handle portion is not specified, but a thermoplastic resin such as ABS resin or polycarbonate is preferable from the viewpoint of manufacturing advantages.
最後に、外管チューブ(3)先端部のストッパー(4)は、金
属もしくは硬質のプラスチックで作られており、これを
備えていることにより穿刺針(1)の最大突出量を規制で
きるのみでなく、使用中に穿刺針(1)と内管チューブ(2)
間の接続が万一外れたにしても、このストッパー(4)で
穿刺針(1)の外管チューブ(3)外への脱落を防ぎ、生体臓
器に重大な損傷を与える危険性も防ぐことができ、ま
た、突起(8)の頭部に指先を当てて内側把手(5)を前後に
スライドさせることにより、片手で操作することも可能
で、取扱い、操作性に優れているばかりでなく、安全面
でもより一層優れた構造となっている。Lastly, the stopper (4) at the tip of the outer tube (3) is made of metal or hard plastic, and it is possible to limit the maximum protruding amount of the puncture needle (1) by providing it. Needle needle (1) and inner tube (2) during use
Even if the connection between the two becomes disconnected, the stopper (4) prevents the puncture needle (1) from falling out of the outer tube (3) and the risk of serious damage to living organs. It is also possible to operate with one hand by putting the fingertip on the head of the protrusion (8) and sliding the inner handle (5) back and forth, not only is it excellent in handling and operability. In terms of safety, the structure is even better.
本考案は、内管チューブの把手部を外管チューブ把手部
内で駆動させ、前進端、後退端等で突起をロック溝に嵌
合固定できる機構なので穿刺針を使用しない時は内管チ
ューブを後退させて把手部を外管チューブ把手部端に固
定できるので、針先が不用意に突出することなく不使用
時や保管時、安全であり、また、使用する際は穿刺針を
前進させ突出させて前進端や中間の位置で内管チューブ
を固定できるので、穿刺針を対象物に穿刺する時、針の
戻りや、使用時に外力によって不意に針が後退するのを
防ぐことができ、さらに、片手で操作することも可能で
あり、取扱上安全で、確実な操作ができる簡便で極めて
有用な医療用穿刺針チューブを提供するものである。The present invention is a mechanism in which the handle part of the inner tube is driven inside the outer tube handle part, and the protrusion can be fitted and fixed in the lock groove at the forward end and the backward end, so the inner tube is retracted when the puncture needle is not used. Since the handle can be fixed to the end of the handle of the outer tube, it is safe when not in use or stored without the needle tip protruding inadvertently. Since the inner tube can be fixed at the forward end or the intermediate position, it is possible to prevent the needle from returning when the puncture needle is punctured into the target object and to retract the needle unexpectedly due to external force during use. The present invention provides a simple and extremely useful medical puncture needle tube that can be operated with one hand, is safe in handling, and can be operated reliably.
第１図〜第３図は本考案の一実施例となる穿刺針付チュ
ーブの全体の概要図で、第１図は穿刺針を後退させて固
定した状態、第２図は穿刺針を前進端まで前進、突出し
て固定した状態、また、第３図は穿刺針の突出量を調整
して中間位置で固定した状態を示す。第４図は本考案に
よる穿刺針付チューブの把手部の一実施例を示す図で、
(a)は把手部の断面図、(b)は(a)図のＡ−Ａ′断面図、
(c)は(a)図のＢ−Ｂ′断面図である。第５図は穿刺針付
チューブの先端部の断面図である。1 to 3 are schematic views of the entire tube with a puncture needle according to an embodiment of the present invention. FIG. 1 shows the state in which the puncture needle is retracted and fixed, and FIG. 2 shows the puncture needle at the forward end. FIG. 3 shows a state in which the puncture needle is moved forward and is projected and fixed, and FIG. FIG. 4 is a view showing an embodiment of the handle portion of the tube with a puncture needle according to the present invention,
(a) is a cross-sectional view of the handle portion, (b) is a cross-sectional view taken along the line AA ′ of (a),
(c) is a sectional view taken along the line BB ′ of FIG. FIG. 5 is a cross-sectional view of the tip of the tube with a puncture needle.
Claims (1)
取付けた内管チューブと、先端には穿刺針の突出量を一
定にするためのストッパーを有し、後端には外側把手を
取付けた外管チューブとから構成され、内管チューブは
外管チューブの内腔に前進、後退可能に収納されてお
り、外側把手の側壁には内管チューブの位置を固定する
ための複数個のロック溝を有するスライド溝が設けられ
ており、また、内側把手の側部には外側把手の溝に嵌合
され、内管チューブを溝に沿ってスライドもしくはロッ
クさせるための突起が設けられていることを特徴とする
医療用穿刺針付チューブ。1. An inner tube tube having a puncture needle at the tip, an inner handle attached to the rear end, and a stopper for keeping the amount of protrusion of the puncture needle constant at the tip, and at the rear end. It is composed of an outer tube attached with an outer handle, and the inner tube is housed in the inner cavity of the outer tube so that it can move forward and backward, and the side wall of the outer handle is used to fix the position of the inner tube. A slide groove having a plurality of lock grooves is provided, and a projection for engaging with the groove of the outer handle and sliding or locking the inner tube along the groove is provided on the side portion of the inner handle. A tube with a medical puncture needle characterized by being provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987162470U JPH0613741Y2 (en) | 1987-10-26 | 1987-10-26 | Tube with medical puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987162470U JPH0613741Y2 (en) | 1987-10-26 | 1987-10-26 | Tube with medical puncture needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0168052U JPH0168052U (en) | 1989-05-01 |
| JPH0613741Y2 true JPH0613741Y2 (en) | 1994-04-13 |
Family
ID=31446327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987162470U Expired - Lifetime JPH0613741Y2 (en) | 1987-10-26 | 1987-10-26 | Tube with medical puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0613741Y2 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5273543A (en) * | 1992-12-14 | 1993-12-28 | Becton, Dickinson And Company | Safety needle syringe |
| US7082106B2 (en) | 1993-01-08 | 2006-07-25 | Multi-Tech Systems, Inc. | Computer-based multi-media communications system and method |
| JP4289078B2 (en) * | 2003-08-21 | 2009-07-01 | 住友ベークライト株式会社 | Endoscopic needle |
| JP4650020B2 (en) * | 2004-08-31 | 2011-03-16 | 住友ベークライト株式会社 | Medical instruments |
| JP4981339B2 (en) * | 2006-03-29 | 2012-07-18 | Ｈｏｙａ株式会社 | Endoscopic syringe |
| US8361039B2 (en) * | 2009-01-26 | 2013-01-29 | Schatz Richard A | Myocardial injector with spring loaded protective array |
| DE102010001506A1 (en) * | 2010-02-02 | 2011-08-04 | Vosseler, Michael, 78073 | Dermal access device |
| JP2017225515A (en) * | 2016-06-20 | 2017-12-28 | 清明 本間 | Operation unit for medical treatment device |
| JP7174154B2 (en) * | 2018-11-27 | 2022-11-17 | テレフレックス ライフ サイエンシズ リミテッド | guide extension catheter |
| JP2020185037A (en) | 2019-05-10 | 2020-11-19 | 株式会社Ｌａｋｅ・Ｅ２ | Injector for endoscope |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6334699Y2 (en) * | 1981-02-02 | 1988-09-14 |
-
1987
- 1987-10-26 JP JP1987162470U patent/JPH0613741Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0168052U (en) | 1989-05-01 |
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