JPH1085331A - Endoscope injection tool - Google Patents
Endoscope injection toolInfo
- Publication number
- JPH1085331A JPH1085331A JP9022267A JP2226797A JPH1085331A JP H1085331 A JPH1085331 A JP H1085331A JP 9022267 A JP9022267 A JP 9022267A JP 2226797 A JP2226797 A JP 2226797A JP H1085331 A JPH1085331 A JP H1085331A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- injection
- endoscope
- inner tube
- outer tube
- 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.)
- Pending
Links
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Endoscopes (AREA)
Abstract
(57)【要約】
【課題】目標とする患部に対して術者が容易かつ正確に
穿刺をすることのできる安全性の高い内視鏡用注射具を
提供すること。
【解決手段】先端に注射針２３が設けられた可撓性チュ
ーブからなる内管２２を軸線方向に進退自在に外套管２
１内に挿通して、上記外套管２１の手元側端部側から上
記内管２２を進退操作させることにより上記注射針２３
が上記外套管２１の先端から突没するようにした内視鏡
用注射具において、上記内管２２を軸線方向に進退操作
するための操作部２５を上記外套管２１の手元側端部に
連結すると共に、上記内管２２の手元側部分を上記操作
部２５から外方に延出させて、上記内管２２の手元側端
部に薬液注入部２７を設けた。
(57) [Problem] To provide a highly safe endoscope injection tool that allows an operator to easily and accurately puncture a target affected part. An outer tube (2) is provided so that an inner tube (22) made of a flexible tube provided with an injection needle (23) at the tip can freely advance and retreat in an axial direction.
1, the inner needle 22 is advanced and retracted from the proximal end side of the outer tube 21 so that the injection needle 23
In the endoscope injection tool configured to protrude and retract from the distal end of the outer tube 21, an operation unit 25 for operating the inner tube 22 in the axial direction is connected to the proximal end of the outer tube 21. At the same time, the proximal portion of the inner tube 22 was extended outward from the operation portion 25, and a chemical solution injection portion 27 was provided at the proximal end of the inner tube 22.
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、内視鏡を介して
体腔内に薬液等を注射するための内視鏡用注射具に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an endoscope injection device for injecting a drug solution or the like into a body cavity through an endoscope.
【０００２】[0002]
【従来の技術】内視鏡用注射具は、一般に、先端に注射
針が設けられた可撓性チューブからなる内管を軸線方向
に進退自在に外套管内に挿通して、外套管の手元側端部
側から内管を進退操作させることにより、注射針が外套
管の先端から突没するようになっている（実公昭６３−
３４６９９号、実公平５−３０７６５号等）。2. Description of the Related Art In general, an endoscope injection tool is configured such that an inner tube composed of a flexible tube having a syringe needle at the distal end is inserted into an outer tube so as to be able to advance and retreat in the axial direction, and a proximal side of the outer tube. By moving the inner tube forward and backward from the end side, the injection needle protrudes and sinks from the tip of the outer tube (Japanese Utility Model Publication No. 63-63).
No. 34699, No. 5-30765, etc.).
【０００３】[0003]
【発明が解決しようとする課題】内視鏡用注射具を使用
するときは、まず内視鏡を操作する術者が、注射針を外
套管内に引っ込めた状態の注射具を内視鏡の鉗子チャン
ネルに挿入する。このとき術者は、左手で内視鏡の操作
部を握り、右手の指先で注射具の外套管を摘んで挿入操
作を行う。When using an endoscope injection tool, an operator operating the endoscope first inserts the injection tool with the injection needle retracted into the outer tube into forceps of the endoscope. Insert into channel. At this time, the surgeon grasps the operation unit of the endoscope with his left hand, picks up the outer tube of the syringe with the fingertip of his right hand, and performs an insertion operation.
【０００４】注射具の先端が内視鏡の先端から突出して
内視鏡の観察視野内に入ったら、注射針を外套管から突
き出すが、それには、手元側で外套管に対して内管を押
し込む必要がある。しかし、その操作を術者が行うのは
困難であり、助手が術者の指示に従ってその操作を行
う。When the tip of the injection tool projects from the tip of the endoscope and enters the observation field of view of the endoscope, the injection needle is protruded from the mantle tube. You need to push it. However, it is difficult for the operator to perform the operation, and the assistant performs the operation according to the instruction of the operator.
【０００５】注射針が外套管の先端から突出したら、注
射針を患部に突き刺す。この操作は内視鏡の鉗子チャン
ネルに対して外套管を押し込むことによって行われ、術
者が行うものである。When the injection needle protrudes from the distal end of the mantle tube, the injection needle is pierced into the affected part. This operation is performed by pushing the mantle tube into the forceps channel of the endoscope, and is performed by the operator.
【０００６】注射針が患部に穿刺されたら、内管に手元
側から薬液を注入して患部内に送り込む。この薬液注入
操作は、内管の手元側に接続された注射筒から行われる
ものであり、術者の指示に従って助手によって行われ
る。[0006] When the injection needle is punctured into the affected part, a drug solution is injected into the inner tube from the proximal side and sent into the affected part. This drug solution injection operation is performed from a syringe connected to the proximal side of the inner tube, and is performed by an assistant in accordance with an operator's instruction.
【０００７】薬液注入が済んだら、術者は外套管を少し
引っ張って針先を患部から抜く。そして、助手に外套管
の先から注射針を引っ込めさせ、さらに外套管を大きく
引っ張らせて、内視鏡の鉗子チャンネルから注射具を引
き出す。After the injection of the medicinal solution, the operator pulls the mantle tube a little and pulls out the needle tip from the affected part. Then, the assistant retracts the injection needle from the tip of the mantle tube, further pulls the mantle tube greatly, and pulls out the injection tool from the forceps channel of the endoscope.
【０００８】内視鏡用注射具の使用には、上述のように
術者と助手による連携操作が必要であるが、微妙な操作
が必要な患部への穿刺の際に、注射針を外套管から突き
出す操作とそれに続いて患部に穿刺する操作までが両者
に別れているため、実際に穿刺操作を正確に行うのは非
常に難しく、特別に熟練を必要とした。[0008] As described above, the use of the endoscope injection tool requires the cooperative operation of the operator and the assistant. However, when puncturing the affected part which requires delicate operation, the injection needle is inserted into the outer tube. Since the operation of protruding from the target and the operation of subsequently puncturing the affected part are separated into two, it is extremely difficult to accurately perform the actual puncturing operation, and special skill is required.
【０００９】そこで本発明は、目標とする患部に対して
術者が容易かつ正確に穿刺をすることのできる安全性の
高い内視鏡用注射具を提供することを目的とする。SUMMARY OF THE INVENTION It is an object of the present invention to provide a highly safe endoscope injection tool that allows an operator to easily and accurately puncture a target affected area.
【００１０】[0010]
【課題を解決するための手段】上記の目的を達成するた
め、本発明の内視鏡用注射具は、先端に注射針が設けら
れた可撓性チューブからなる内管を軸線方向に進退自在
に外套管内に挿通して、上記外套管の手元側端部側から
上記内管を進退操作させることにより上記注射針が上記
外套管の先端から突没するようにした内視鏡用注射具に
おいて、上記内管を軸線方向に進退操作するための操作
部を上記外套管の手元側端部に連結すると共に、上記内
管の手元側部分を上記操作部から外方に延出させて、上
記内管の手元側端部に薬液注入部を設けたことを特徴と
する。In order to achieve the above object, an endoscope injection device according to the present invention is capable of axially moving an inner tube made of a flexible tube provided with an injection needle at an end thereof. In the endoscope injection tool, the injection needle is inserted into the outer tube and the inner tube is advanced and retracted from the proximal end side of the outer tube so that the injection needle protrudes and retracts from the tip of the outer tube. Connecting an operating portion for operating the inner tube in the axial direction to the proximal end of the outer tube, and extending the proximal portion of the inner tube outward from the operating portion, It is characterized in that a chemical solution injection section is provided at the proximal end of the inner tube.
【００１１】なお、上記注射針の突出長さを規制するた
めのストッパが、上記外套管の先端部分に設けられてい
てもよく、上記注射針が上記ストッパによって突出が規
制された状態のときに、上記操作部においては、上記内
管を先側に押し込むための操作ストロークが残っている
とよい。[0011] A stopper for regulating the protruding length of the injection needle may be provided at the distal end of the outer tube, and when the protrusion of the injection needle is regulated by the stopper. In the operation section, it is preferable that an operation stroke for pushing the inner tube toward the front side remains.
【００１２】また、上記外套管の先端面が、上記注射針
による被穿刺部の表面に押し付けられたときにその表面
に喰い込む形状に形成されていてもよい。Further, the distal end surface of the outer tube may be formed into a shape that bites into the surface of the punctured portion when pressed by the injection needle.
【００１３】[0013]
【発明の実施の形態】図面を参照して本発明の実施の形
態を説明する。図１は内視鏡用注射具２０を示してお
り、２１は、内視鏡の鉗子チャンネルに対して挿脱自在
な外套管であり、可撓性のあるチューブ（例えば四フッ
化エチレン樹脂）によって形成されている。ただし、金
属製コイルパイプ等で外套管２１を形成してもよい。Embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows an endoscope injection device 20, and 21 is an outer tube that can be inserted into and removed from a forceps channel of the endoscope, and is a flexible tube (for example, tetrafluoroethylene resin). Is formed by However, the mantle tube 21 may be formed of a metal coil pipe or the like.
【００１４】外套管２１内には、可撓性チューブからな
る内管２２が軸線方向に進退自在に挿通配置されてい
て、その内管２２の先端には注射針２３が接続固着され
ている。したがって、内管２２を外套管２１内で軸線方
向に進退させることによって、注射針２３が外套管２１
の先端から突没する。An inner tube 22 made of a flexible tube is inserted through the outer tube 21 so as to be able to advance and retreat in the axial direction, and an injection needle 23 is connected and fixed to the tip of the inner tube 22. Therefore, by moving the inner tube 22 back and forth in the axial direction in the outer tube 21, the injection needle 23 is moved to the outer tube 21.
Protrude from the tip of.
【００１５】ただし、外套管２１の先端内面には、注射
針２３が突出しすぎるのを規制するためのストッパ２４
が形成されており、図２に示されるように、注射針２３
の基部側に形成された鍔部２３ａがストッパ２４に当接
すると、注射針２３は先端が外套管２１から所定の長さ
突出した状態になって、それ以上突出できないようにな
っている。なお、その際の注射針２３の移動ストローク
をＬ１とする。However, a stopper 24 is provided on the inner surface of the distal end of the outer tube 21 to prevent the injection needle 23 from protruding too much.
Are formed, and as shown in FIG.
When the flange 23a formed on the base side of the needle abuts against the stopper 24, the tip of the injection needle 23 projects from the outer tube 21 by a predetermined length, so that the injection needle 23 cannot protrude further. The movement stroke of the injection needle 23 at this time is defined as L1.
【００１６】図１において、２５は、内管２２を軸線方
向に進退操作するための操作部であり、一対の鍔２５
１，２５１の間に第１の指掛け２５２が形成された操作
部本体２５３に、外套管２１の手元側端部が押さえナッ
ト２５４によって連結固定されている。In FIG. 1, reference numeral 25 denotes an operating portion for operating the inner tube 22 in the axial direction.
The proximal end of the mantle tube 21 is connected and fixed by a holding nut 254 to an operation unit main body 253 in which a first finger hook 252 is formed between the first and second arms 251.
【００１７】操作部本体２５３の内部は筒状の空洞にな
っていて、手元側端部に第２の指掛け２５５が形成され
たスライダ２５６の先側の棒状部が、軸線方向に進退自
在に操作部本体２５３に嵌挿されている。The inside of the operation section main body 253 is a cylindrical cavity, and the rod-like section at the front end of the slider 256 having the second finger hook 255 formed at the proximal end is operated so as to be able to advance and retreat in the axial direction. The main body 253 is fitted.
【００１８】スライダ２５６には、内管２２の外周面が
固着されている。また、操作部本体２５３内に位置する
部分においては、補強パイプ２６が内管２２を囲むよう
に取り付けられていて、補強パイプ２６の一端側はスラ
イダ２５６に固着され、他端側は外套管２１内に達して
いる。The outer peripheral surface of the inner tube 22 is fixed to the slider 256. Further, in a portion located inside the operation portion main body 253, a reinforcing pipe 26 is attached so as to surround the inner pipe 22, one end of the reinforcing pipe 26 is fixed to the slider 256, and the other end is the outer pipe 21. Has reached within.
【００１９】スライダ２５６の棒状部の外周面には、距
離Ｌ２の間をあけて一対の円周溝２５７，２５８が形成
されている。そして、その係合溝２５７，２５８に係合
する弾力性のあるＯリング２５９が、操作部本体２５３
の内周面部に装着されている。A pair of circumferential grooves 257 and 258 are formed on the outer peripheral surface of the rod portion of the slider 256 at a distance L2. An elastic O-ring 259 that engages with the engagement grooves 257 and 258 is
Is mounted on the inner peripheral surface of the.
【００２０】その結果、スライダ２５６を進退操作する
と、Ｏリング２５９が係合溝２５７，２５８に係合する
位置でいわゆるクリックが入り、操作部本体２５３に対
してスライダ２５６がある程度の力で固定された状態に
なる。As a result, when the slider 256 is moved forward and backward, a so-called click is made at a position where the O-ring 259 is engaged with the engagement grooves 257 and 258, and the slider 256 is fixed to the operation section main body 253 with a certain force. State.
【００２１】したがって、操作によるスライダ２５６の
移動範囲は、Ｏリング２５９が二つの係合溝２５７，２
５８に係合する間の範囲であり、その操作ストロークは
Ｌ２である。Therefore, the range of movement of the slider 256 by the operation is such that the O-ring 259 has two engagement grooves 257 and 2.
The operation stroke is L2.
【００２２】このスライダ２５６の操作ストロークＬ２
は、先端側における注射針２３の移動ストロークＬ１よ
り長くとられており、スライダ２５６を操作部本体２５
３に押し込んでいって注射針２３の鍔部２３ａがストッ
パ２４に当接したとき、Ｏリング２５９はまだ手元側の
係合溝２５８に係合しておらず、さらに内管２２を先側
に押し込むための操作ストロークが残るようになってい
る。The operation stroke L2 of the slider 256
Is longer than the movement stroke L1 of the injection needle 23 on the distal end side, and the slider 256 is
3, the O-ring 259 has not yet been engaged in the engagement groove 258 on the hand side, and the inner tube 22 is further moved forward. An operation stroke for pushing is left.
【００２３】したがって、図２に示されるように、Ｏリ
ング２５９が手元側の係合溝２５８に係合するまでスラ
イダ２５６を押し込むと、内管２２の長さが外套管２１
内で余って、内管２２が蛇行するようになっている。Therefore, as shown in FIG. 2, when the slider 256 is pushed in until the O-ring 259 is engaged with the engagement groove 258 on the hand side, the length of the inner tube 22 is reduced.
The inner tube 22 is meandering in the inside.
【００２４】その結果、外套管２１が屈曲されても注射
針２３の完全な突出が確保されると共に、注射針２３を
患部に穿刺する際に、どのような状態でも注射針２３を
確実に突出させて穿刺を行うことができる。As a result, even if the mantle tube 21 is bent, complete protrusion of the injection needle 23 is ensured, and when the injection needle 23 is punctured into an affected part, the injection needle 23 is reliably projected in any state. Puncturing can be performed.
【００２５】内管２２の手元側は、スライダ２５６から
外方に延出していて、その手元側端部には注射筒受け口
金２７が取り付けられている。したがって、その口金２
７に注射筒２８を接続し、注射筒２８から内管２２内に
薬液を注入することによって、注射針２３の先端から薬
液を送り出すことができる。The proximal side of the inner tube 22 extends outward from the slider 256, and a syringe barrel receiving base 27 is attached to the proximal end thereof. Therefore, its base 2
By connecting a syringe 28 to the tube 7 and injecting the drug solution into the inner tube 22 from the syringe tube 28, the drug solution can be sent out from the tip of the injection needle 23.
【００２６】図３は、上述のように形成された内視鏡用
注射具２０を、内視鏡１を介して使用する状態を示して
おり、この実施の形態においては、内視鏡１の鉗子チャ
ンネル２に挿通されたガイドチューブ１０に注射具２０
が通されている。図３において、３は内視鏡１の挿入
部、４は操作部、５は、対物光学系等が内蔵された先端
部本体である。FIG. 3 shows a state in which the endoscope injection tool 20 formed as described above is used via the endoscope 1. In this embodiment, the endoscope 1 is used. The injection tool 20 is inserted into the guide tube 10 inserted through the forceps channel 2.
Has been passed. In FIG. 3, reference numeral 3 denotes an insertion portion of the endoscope 1, 4 denotes an operation portion, and 5 denotes a distal end body in which an objective optical system and the like are built.
【００２７】図３に示されるように、内視鏡１の操作部
４は術者の左手で把持されるが、その左手で、注射具２
０の操作部２５を持って、第１と第２の指掛け２５２，
２５５に左手の指を掛けて動かすことができる。As shown in FIG. 3, the operation section 4 of the endoscope 1 is gripped by the operator's left hand.
0, the first and second finger hooks 252,
255 can be moved with the left finger.
【００２８】その結果、術者が左手でスライダ２５６を
矢印Ａに示されるように進退させて、内管２２を介して
外套管２１の先端からの注射針２３の突没操作を行うこ
とができる。As a result, the surgeon can move the slider 256 forward and backward with the left hand as shown by the arrow A, and can perform the operation of projecting and retracting the injection needle 23 from the tip of the outer tube 21 via the inner tube 22. .
【００２９】一方、外套管２１の進退操作は術者が右手
で行うことができるから、この内視鏡用注射具２０を用
いての経内視鏡的注射操作では、助手は注射筒２８の操
作だけを行えばよい。On the other hand, since the operation of the mantle tube 21 can be performed by the surgeon with the right hand, in the endoscopic injection operation using the endoscope injection tool 20, the assistant is You only need to perform the operation.
【００３０】したがって、この内視鏡用注射具２０を使
用する場合には、まず内視鏡の操作部４を左手で把持す
る術者が、注射針２３を外套管２１内に引っ込めた状態
の注射具２０を、右手で内視鏡の鉗子チャンネル２又は
ガイドチューブ１０に挿入する。Therefore, when using the endoscope injection tool 20, an operator holding the operation section 4 of the endoscope with the left hand first retracts the injection needle 23 into the outer tube 21. The injection tool 20 is inserted into the forceps channel 2 of the endoscope or the guide tube 10 with the right hand.
【００３１】そして、注射具２０の先端が内視鏡の観察
視野内に入ったら、術者は右手で外套管２１をさらに押
し出して、図４に示されるように、注射針２３を突出さ
せることなく外套管２１を患部１００に対して押しつ
け、それから左手で、図５に示されるように注射針２３
を外套管２１の先端から突出させて患部１００に突き刺
す。When the tip of the injection tool 20 enters the observation field of view of the endoscope, the surgeon further pushes out the mantle tube 21 with the right hand to project the injection needle 23 as shown in FIG. Without pressing the mantle tube 21 against the affected area 100, and then using the left hand, the injection needle 23 as shown in FIG.
From the distal end of the mantle tube 21 and pierce the affected part 100.
【００３２】このように、この内視鏡用注射具２０を用
いれば、患部１００に対して注射針２３を穿刺する動作
を術者が一人で行うことができる。穿刺ができたら、患
部１００への薬液注入は、術者の指示によって助手が注
射筒２８を操作して行うことになる。As described above, by using the endoscope injection tool 20, the operator can perform the operation of puncturing the affected part 100 with the injection needle 23 alone. When the puncture is completed, the injection of the drug solution into the affected area 100 is performed by the assistant operating the syringe 28 according to the instruction of the operator.
【００３３】患部１００への薬液注入が完了したら、術
者が外套管２１内に注射針２３を引っ込め、内視鏡１か
ら注射具２０を引き抜く操作は、術者又は助手のどちら
が行ってもよい。When the injection of the drug solution into the affected area 100 is completed, the operation of retracting the injection needle 23 into the mantle tube 21 and pulling out the injection tool 20 from the endoscope 1 may be performed by the operator or the assistant. .
【００３４】図６は、本発明の第２の実施の形態の内視
鏡用注射具２０を示しており、外套管２１の先端面２１
ａを、注射針２３が穿刺される被穿刺部の表面に押し付
けられたときにその表面に喰い込むように、鋸の歯状に
形成したものである。FIG. 6 shows an endoscope injection device 20 according to a second embodiment of the present invention.
a is formed in a sawtooth shape so that when the injection needle 23 is pressed against the surface of the punctured part to be punctured, it bites into the surface.
【００３５】このように形成することにより、図７に示
されるように外套管２１の先端面２１ａを患部１００に
押し付けて、図８に示されるように注射針２３で穿刺す
る動作中に、外套管２１の先端面２１ａが患部１００の
表面から滑らないので、正確な位置に注射を行うことが
できる。With this configuration, as shown in FIG. 7, the distal end surface 21a of the mantle tube 21 is pressed against the diseased part 100, and as shown in FIG. Since the distal end surface 21a of the tube 21 does not slip from the surface of the affected part 100, injection can be performed at an accurate position.
【００３６】なお、外套管２１の先端面２１ａを患部１
００等の表面に食い込むようにするには、図９に示され
るように環状の刃状に形成してもよく、図１０に示され
るようにＶ字状の凹みの突端側を尖らせてもよく、或い
は図１１に示されるように、斜めに切り削いだ形状に形
成してもよい。The distal end surface 21a of the mantle tube 21 is attached to the affected part 1
In order to cut into the surface such as 00, it may be formed in an annular blade shape as shown in FIG. 9 or by sharpening the protruding end side of the V-shaped recess as shown in FIG. Alternatively, as shown in FIG. 11, it may be formed in an obliquely cut shape.
【００３７】[0037]
【発明の効果】本発明によれば、外套管内に進退自在に
配置された可撓性チューブからなる内管の先端に注射針
を設け、その内管を進退操作するための操作部を外套管
の手元側端部に連結したことにより、患部に対する注射
針の穿刺操作、即ち内管の進退操作による注射針の突没
操作と外套管の進退操作とを術者が一人で行うことがで
きるので、目標とする患部に対して術者が容易かつ正確
に穿刺をすることができ、内管の手元側部分を操作部か
ら外方に延出させたことにより、内管の手元側端部に設
けられた薬液注入部からの薬液注入を助手が容易に行う
ことができる。According to the present invention, an injection needle is provided at the tip of an inner tube made of a flexible tube which can be freely advanced and retracted in the outer tube, and an operating portion for operating the inner tube forward and backward is provided. By connecting to the proximal end of the injection needle, the surgeon can perform the puncture operation of the injection needle to the affected part, that is, the operation of protruding and retracting the injection needle by the operation of moving the inner tube and the operation of moving the mantle tube alone. The surgeon can easily and accurately puncture the target affected area, and by extending the proximal portion of the inner tube outward from the operation section, The assistant can easily inject the liquid medicine from the provided liquid injection part.
【図１】本発明の第１の実施の形態の注射針が突出して
いない状態の側面断面図である。FIG. 1 is a side sectional view showing a state in which an injection needle according to a first embodiment of the present invention does not protrude.
【図２】本発明の第１の実施の形態の注射針が突出した
状態の側面断面図である。FIG. 2 is a side sectional view of the first embodiment of the present invention in a state where an injection needle is projected.
【図３】本発明の第１の実施の形態の内視鏡用注射具の
使用状態を示す側面図である。FIG. 3 is a side view showing a usage state of the endoscope injection tool according to the first embodiment of the present invention.
【図４】本発明の第１の実施の形態の穿刺の際の先端部
分の側面図である。FIG. 4 is a side view of a tip portion at the time of puncturing according to the first embodiment of the present invention.
【図５】本発明の第１の実施の形態の穿刺の際の先端部
分の側面図である。FIG. 5 is a side view of a distal end portion at the time of puncturing according to the first embodiment of this invention.
【図６】本発明の第２の実施の形態の注射針が突出して
いない状態の側面断面図である。FIG. 6 is a side sectional view of a second embodiment of the present invention in a state where an injection needle does not protrude.
【図７】本発明の第２の実施の形態の穿刺の際の先端部
分の側面図である。FIG. 7 is a side view of a tip portion at the time of puncturing according to the second embodiment of the present invention.
【図８】本発明の第２の実施の形態の穿刺の際の先端部
分の側面図である。FIG. 8 is a side view of a tip portion at the time of puncturing according to the second embodiment of the present invention.
【図９】本発明の第３の実施の形態の外套管の先端部分
の側面断面図である。FIG. 9 is a side sectional view of a distal end portion of a mantle tube according to a third embodiment of the present invention.
【図１０】本発明の第４の実施の形態の外套管の先端部
分の側面断面図である。FIG. 10 is a side sectional view of a distal end portion of a mantle tube according to a fourth embodiment of the present invention.
【図１１】本発明の第５の実施の形態の外套管の先端部
分の側面断面図である。FIG. 11 is a side sectional view of a distal end portion of a mantle tube according to a fifth embodiment of the present invention.
２０ 内視鏡用注射具 ２１ 外套管 ２２ 内管 ２３ 注射針 ２５ 操作部 ２７ 薬液注入部 ２８ 注射筒 DESCRIPTION OF SYMBOLS 20 Injection tool for endoscope 21 Outer tube 22 Inner tube 23 Injection needle 25 Operation unit 27 Chemical injection unit 28 Injection cylinder
Claims (4)
からなる内管を軸線方向に進退自在に外套管内に挿通し
て、上記外套管の手元側端部側から上記内管を進退操作
させることにより上記注射針が上記外套管の先端から突
没するようにした内視鏡用注射具において、 上記内管を軸線方向に進退操作するための操作部を上記
外套管の手元側端部に連結すると共に、上記内管の手元
側部分を上記操作部から外方に延出させて、上記内管の
手元側端部に薬液注入部を設けたことを特徴とする内視
鏡用注射具。1. An inner tube made of a flexible tube provided with a syringe needle at its tip is inserted into an outer tube so as to be able to advance and retreat in the axial direction, and the inner tube is advanced and retracted from the proximal end side of the outer tube. In the endoscope injection tool in which the injection needle is made to protrude and retract from the distal end of the outer tube by operating, an operating portion for moving the inner tube forward and backward in the axial direction is a proximal end of the outer tube. End portion of the inner tube extending outward from the operation portion, and a chemical solution injection portion is provided at a proximal end portion of the inner tube. Syringe.
トッパが、上記外套管の先端部分に設けられている請求
項１記載の内視鏡用注射具。2. The endoscope injection device according to claim 1, wherein a stopper for regulating a protruding length of the injection needle is provided at a distal end portion of the outer tube.
規制された状態のときに、上記操作部においては、上記
内管を先側に押し込むための操作ストロークが残ってい
る請求項２記載の内視鏡用注射具。3. An operation stroke for pushing the inner tube toward the front side in the operation portion when the protrusion of the injection needle is restricted by the stopper. Endoscope injection tool.
被穿刺部の表面に押し付けられたときにその表面に喰い
込む形状に形成されている請求項１、２又は３記載の内
視鏡用注射具。4. The endoscope according to claim 1, wherein the distal end surface of the outer tube is formed into a shape that bites into the surface of the portion to be punctured by the injection needle when pressed. Mirror injection tool.
Priority Applications (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9022267A JPH1085331A (en) | 1996-07-26 | 1997-02-05 | Endoscope injection tool |
| US08/835,234 US5964740A (en) | 1996-07-09 | 1997-04-07 | Treatment accessory for an endoscope |
| DK01117388T DK1155708T3 (en) | 1996-07-09 | 1997-04-23 | Injection instrument for an endoscope |
| EP01117388A EP1155708B1 (en) | 1996-07-09 | 1997-04-23 | Injector instrument for an endoscope |
| DK97106755T DK0818208T3 (en) | 1996-07-09 | 1997-04-23 | Injection instrument for an endoscope |
| DE69714153T DE69714153T2 (en) | 1996-07-09 | 1997-04-23 | Injector instrument for an endoscope |
| DE69734740T DE69734740T2 (en) | 1996-07-09 | 1997-04-23 | Injection device for an endoscope |
| EP97106755A EP0818208B1 (en) | 1996-07-09 | 1997-04-23 | Injector instrument for an endoscope |
| US09/369,351 US6210377B1 (en) | 1996-07-09 | 1999-08-06 | Treatment accessory for an endoscope |
| US09/369,346 US6203533B1 (en) | 1995-06-07 | 1999-08-06 | Treatment accessory for an endoscope |
| US09/369,353 US6210378B1 (en) | 1996-07-09 | 1999-08-06 | Treatment accessory for an endoscope |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8-197491 | 1996-07-26 | ||
| JP19749196 | 1996-07-26 | ||
| JP9022267A JPH1085331A (en) | 1996-07-26 | 1997-02-05 | Endoscope injection tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1085331A true JPH1085331A (en) | 1998-04-07 |
Family
ID=26359442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9022267A Pending JPH1085331A (en) | 1995-06-07 | 1997-02-05 | Endoscope injection tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1085331A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005516636A (en) * | 2001-06-22 | 2005-06-09 | ジョンズ・ホプキンス・ユニバーシティ | Methods and devices for subretinal drug delivery |
| EP2106814A4 (en) * | 2007-01-19 | 2010-03-03 | Olympus Medical Systems Corp | TREATMENT DEVICE |
| JPWO2010137256A1 (en) * | 2009-05-26 | 2012-11-12 | 株式会社パイオラックスメディカルデバイス | Suture device |
| JP2014147800A (en) * | 2008-04-08 | 2014-08-21 | Karolinska Institutet Innovations Ab | Endoluminal medical access device |
| EP3967337A4 (en) * | 2019-05-10 | 2023-06-14 | LAKE.E2 Co., Ltd. | Injection tool for endoscope |
-
1997
- 1997-02-05 JP JP9022267A patent/JPH1085331A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005516636A (en) * | 2001-06-22 | 2005-06-09 | ジョンズ・ホプキンス・ユニバーシティ | Methods and devices for subretinal drug delivery |
| EP2106814A4 (en) * | 2007-01-19 | 2010-03-03 | Olympus Medical Systems Corp | TREATMENT DEVICE |
| US8262558B2 (en) | 2007-01-19 | 2012-09-11 | Olympus Medical Systems Corp | Treatment tool |
| JP2014147800A (en) * | 2008-04-08 | 2014-08-21 | Karolinska Institutet Innovations Ab | Endoluminal medical access device |
| JPWO2010137256A1 (en) * | 2009-05-26 | 2012-11-12 | 株式会社パイオラックスメディカルデバイス | Suture device |
| GB2482638B (en) * | 2009-05-26 | 2014-02-12 | Piolax Medical Devices Inc | Suture device |
| EP3967337A4 (en) * | 2019-05-10 | 2023-06-14 | LAKE.E2 Co., Ltd. | Injection tool for endoscope |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3958576A (en) | Surgical instrument for clipping any affected portion of a body cavity | |
| JP5727049B2 (en) | Disposable remote injection needle for endoscope | |
| JP5379249B2 (en) | Tissue collection device | |
| JP4450873B2 (en) | Endoscopic puncture needle operation assist device | |
| US6616638B2 (en) | Hypodermic needle cap and sharps protective cap ejector | |
| US5120309A (en) | Hypodermic syringe with protective shield | |
| US6086565A (en) | Syringe for endoscope | |
| CN105392415B (en) | Endoscopic treatment device | |
| CN110269629B (en) | Single needle type blood collection tube holder | |
| JP6426032B2 (en) | Endoscopic puncture device | |
| JPS6334699Y2 (en) | ||
| JP2013172842A (en) | Puncture needle device for endoscope | |
| JPH1085331A (en) | Endoscope injection tool | |
| JP6562330B2 (en) | Endoscopic treatment tool | |
| ATE361765T1 (en) | SELF-COVERING DENTAL NEEDLE | |
| JP2001170063A (en) | Operating device for treatment tools for endoscopes | |
| JPH05253178A (en) | Injection means for endoscope | |
| JP3676632B2 (en) | Endoscope tissue collection tool operation unit | |
| JP4538247B2 (en) | Endoscopic tissue collection puncture needle device | |
| JP4544002B2 (en) | Lancet with needle protector | |
| JP2001353219A (en) | Endoscope puncture device | |
| JP3548300B2 (en) | Endoscope injection tool | |
| JPH05253299A (en) | Endoscope injection tool | |
| JPH0715551Y2 (en) | Endoscope syringe | |
| JPH06304132A (en) | Injector for endoscope |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20050721 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20050902 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20060119 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20060310 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20060413 |