JPH063525Y2 - Endoscope - Google Patents
EndoscopeInfo
- Publication number
- JPH063525Y2 JPH063525Y2 JP1987114579U JP11457987U JPH063525Y2 JP H063525 Y2 JPH063525 Y2 JP H063525Y2 JP 1987114579 U JP1987114579 U JP 1987114579U JP 11457987 U JP11457987 U JP 11457987U JP H063525 Y2 JPH063525 Y2 JP H063525Y2
- Authority
- JP
- Japan
- Prior art keywords
- distal end
- treatment instrument
- endoscope
- end portion
- notch
- 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
Landscapes
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 この考案は、先端構成部に、たとえば鉗子等の処置具誘
導子を備えた内視鏡に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an endoscope including a treatment instrument guider such as forceps in a distal end portion.
生体腔内に挿入する挿入部の先端に設けた先端構成部に
処置具誘導子を設け、この処置具誘導子を処置具挿通用
チャンネルの開口部に回動自在に設け、この処置具誘導
子を操作部で遠隔操作できるようにした内視鏡は、たと
えば特開昭５７−７５６２９号公報に示すように公知で
ある。A treatment instrument guider is provided at the distal end configuration portion provided at the tip of the insertion section to be inserted into the living body cavity, and the treatment instrument guider is rotatably provided at the opening of the treatment instrument insertion channel. An endoscope in which the operating unit can be remotely operated is known as disclosed in, for example, Japanese Patent Application Laid-Open No. 57-75629.
この内視鏡は、挿入部の先端に設けられた先端構成部に
観察光学系、照明光学系とともに処置具挿通用チャンネ
ルの開口部が設けられ、この開口部に対向して処置具誘
導子が枢支ピン等によって回動自在に枢支されている。
一方、操作部には前記処置具誘導子を回動操作する操作
ノブが設けられ、この操作ノブと前記処置具誘導子は挿
入部に内装された操作ワイヤによって連結されている。
そして、操作ノブによって操作ワイヤを押し引きするこ
とによって処置具誘導子を回動させ、処置具挿通チャン
ネルに挿通された鉗子等の処置具の先端部を誘導できる
ようになっている。In this endoscope, an opening portion of a treatment instrument insertion channel is provided together with an observation optical system and an illumination optical system at a distal end configuration portion provided at a distal end of an insertion portion, and a treatment instrument guider is opposed to the opening portion. It is rotatably supported by a pivot pin or the like.
On the other hand, the operation section is provided with an operation knob for rotating the treatment instrument guide, and the operation knob and the treatment instrument guide are connected by an operation wire incorporated in the insertion section.
Then, by pushing and pulling the operation wire with the operation knob, the treatment instrument guide can be rotated to guide the distal end portion of the treatment instrument such as forceps inserted in the treatment instrument insertion channel.
ところが、挿入部に操作ワイヤを内装すると、この操作
ワイヤをガイドするガイド部材の必要となり、また操作
ワイヤを進退させるために、ある程度余裕を持って内装
する必要がある。したがって、挿入部が太くなってしま
い、また挿入部の細径化を図るために操作ワイヤやガイ
ド部材を細くすると耐久性に劣るだけでなく、ガイド部
材と操作ワイヤとのクリアランスに侵入した汚物や粘液
を除去しにくくなり、作動不能になることがある。また
操作ワイヤおよびガイド部材は、一般に金属であるため
硬く曲がりにくいために挿入部に内装された他の内蔵物
（イメージガイドファイバー、ライトガイドファイバー
等）に対して圧迫を与え耐久性を低下させる恐れがあ
る。さらに、先端構成部に処置具誘導子を回動自在に設
けるためには枢支ピンを軸支する部分および処置具誘導
子の回動スペースが必要となり、先端構成部が大径、大
型化するという欠点がある。However, when the operation wire is installed in the insertion portion, a guide member for guiding the operation wire is required, and in order to move the operation wire forward and backward, it is necessary to install the operation wire with some margin. Therefore, the insertion portion becomes thicker, and if the operation wire or the guide member is thinned in order to reduce the diameter of the insertion portion, not only the durability is deteriorated, but also dirt and dirt that has entered the clearance between the guide member and the operation wire It may be difficult to remove the mucus and it may become inoperable. In addition, since the operation wire and guide member are generally made of metal, they are hard and difficult to bend, so there is a risk that they will put pressure on other internal components (image guide fiber, light guide fiber, etc.) installed inside the insertion part and reduce their durability. There is. Furthermore, in order to rotatably install the treatment instrument guider on the distal end constituent portion, a portion for pivotally supporting the pivot pin and a rotation space for the treatment implement guider are required, and the distal end constituent portion becomes large in diameter and large in size. There is a drawback that.
また大型化は、前記先端構成部のみならず、処置具誘導
子を遠隔操作する操作部においてもラック・ピニオン、
レバー等の機構を組込む必要があることから大型化して
重くなり、術者に負担になっている。In addition, the size of the rack and pinion is increased not only in the tip configuration part but also in the operation part for remotely operating the treatment tool inductor.
Since it is necessary to incorporate a mechanism such as a lever, it becomes large and heavy, which is a burden on the operator.
この考案は、前記事情に着目してなされたもので、その
目的とするところは、挿入部および先端構成部の細径化
により患者に与える苦痛を軽減させるとともに、操作部
の小型化、軽量化を図り、さらに耐久性のある内視鏡を
提供することにある。This invention has been made in view of the above circumstances, and its purpose is to reduce the pain to the patient by reducing the diameter of the insertion portion and the distal end configuration portion, and to reduce the size and weight of the operation portion. And to provide a more durable endoscope.
この考案は、内視鏡の挿入部の先端部に先端構成部を設
け、この先端構成部に観察光学系と処置具挿通用チャン
ネルとを設けた内視鏡において、前記先端構成部には切
欠部が形成され、この切欠部には前記先端構成部の処置
具挿通用チャンネルの開口部が開口し、前記切欠部の形
状と略同一で、略円弧状の各種誘導溝形状を有した複数
の処置具誘導子のうちのひとつを着脱自在に設けたこと
にある。This invention is an endoscope in which a distal end forming portion is provided at a distal end portion of an insertion portion of an endoscope, and an observation optical system and a treatment instrument insertion channel are provided at the distal end forming portion. A portion is formed, and an opening of the treatment instrument insertion channel of the distal end forming portion is opened in this cutout portion, and a plurality of guide grooves having substantially the same arc shape as the cutout portion are formed. One of the treatment instrument inductors is detachably provided.
以下、この考案の一実施例を図面に基づいて説明する。 An embodiment of the present invention will be described below with reference to the drawings.
第１図乃至第５図において、１は内視鏡を示すもので、
この内視鏡１は操作部２、挿入部３およびユニバーサル
コード４とから構成されている。前記操作部２には接眼
部５、アングルノブ６および処置具挿通口７が設けられ
ている。また、挿入部３は可撓管部８、湾曲管部９およ
び先端構成部１０とから構成されている。そして、この
挿入部３にはライトガイドファイバー１１、イメージガ
イドファイバー１２、送気送水管路１３および処置具挿
通用チャンネル１４が内装されている。また、前記先端
構成部１０の側面における先端構成部１０の中心線ｓを
境界とする一側には平坦部１５およびこれと連続して傾
斜部１６が設けられている。そして、この平坦部１５に
は前記ライトガイドファイバー１１と光学的に接続する
照明窓１７および前記イメージガイドファイバー１２と
対物レンズ群１８を介して光学的に接続する観察窓１９
が設けられている。さらに、前記傾斜部１６には前記送
気送水管路１３と連通する送気送水口２０が観察窓１９
に向かって設けられている。In FIGS. 1 to 5, reference numeral 1 denotes an endoscope,
The endoscope 1 is composed of an operation section 2, an insertion section 3 and a universal cord 4. The operation section 2 is provided with an eyepiece section 5, an angle knob 6, and a treatment instrument insertion port 7. Further, the insertion section 3 is composed of a flexible tube section 8, a bending tube section 9 and a tip forming section 10. A light guide fiber 11, an image guide fiber 12, an air / water supply conduit 13 and a treatment tool insertion channel 14 are incorporated in the insertion portion 3. A flat portion 15 and an inclined portion 16 continuous with the flat portion 15 are provided on one side of the side surface of the tip forming portion 10 with the center line s of the tip forming portion 10 as a boundary. An illumination window 17 optically connected to the light guide fiber 11 and an observation window 19 optically connected to the image guide fiber 12 via the objective lens group 18 are connected to the flat portion 15.
Is provided. Further, an air / water supply port 20 communicating with the air / water supply conduit 13 is provided in the inclined portion 16 and an observation window 19 is provided.
It is installed toward.
また、前記先端構成部１０の中心線ｓを境界とする他側
にはＬ字状に切欠した切欠部２１が設けられていて、側
方に対向する第１の突き当て面２２と前方に対向する第
２の突き当て面２３が形成されている。そして、この切
欠部２１にはこの切欠形状と略同一の処置具誘導子２４
が後述する手段によって先端構成部１０に対して着脱自
在に設けられている。すなわち、前記先端構成部１０に
は前記挿入部３に内装された処置具挿通用チャンネル１
４と挿通する開口部２５が設けられ、この開口部２５は
前記第２の突き当て面２３に開口している。また、前記
処置具誘導子２４には前記開口部２５と対向する略円弧
状の誘導溝２６が設けられ、処置具誘導子２４を第２の
突き当て面２３に突き当てたとき開口部２５と誘導溝２
６とによって前記処置具挿通用チャンネル１４と連通す
る円弧状の処置具挿通路２７が形成される。さらに、前
記処置具誘導子２４には処置具挿通用チャンネル１４の
軸方向と直交する方向に貫通穴２８が穿設されている。
この貫通穴２８は大径部２８ａと小径部２８ｂからな
り、段差部２９を有している。そして、この貫通穴２８
には固定ねじ３０が挿入され、このフランジ部３１の内
面が前記段差部２９に当接し、外面は処置具誘導子２４
の外面と同一の曲率になっている。さらに、前記貫通穴
２８と対向する前記先端構成部１０の切欠部２１に形成
した第１の突き当て面２２にはねじ穴３２が穿設され、
前記固定ねじ３０をねじ込むことによって処置具誘導子
２４が先端構成部１０の切欠部２１に固定されている。
さらに、処置具誘導子２４と第１および第２の突き当て
面２２、２３との間および貫通穴２８と固定ねじ３０と
の間にはクリアランス部３３が形成され、このクリアラ
ンス部３３にはシリコン系の接着剤３４が充填されてい
る。Further, an L-shaped notch portion 21 is provided on the other side of the tip forming portion 10 with the center line s as a boundary, and the first abutting surface 22 that faces the side faces the front side. The second abutting surface 23 is formed. Then, the notch portion 21 has a treatment instrument guide 24 having substantially the same shape as the notch shape.
Is detachably attached to the tip forming portion 10 by means described later. That is, the treatment instrument insertion channel 1 provided in the insertion portion 3 is provided in the distal end configuration portion 10.
4 is provided, and the opening 25 is opened in the second abutting surface 23. Further, the treatment instrument guider 24 is provided with a substantially arcuate guide groove 26 facing the opening 25, and when the treatment instrument guider 24 is abutted against the second abutting surface 23, the opening 25 is formed. Guide groove 2
An arcuate treatment instrument insertion passage 27 that communicates with the treatment instrument insertion channel 14 is formed by 6 and. Further, the treatment instrument guide 24 is provided with a through hole 28 in a direction orthogonal to the axial direction of the treatment instrument insertion channel 14.
The through hole 28 includes a large diameter portion 28a and a small diameter portion 28b, and has a step portion 29. And this through hole 28
A fixing screw 30 is inserted in the inner surface of the flange portion 31 abuts on the step portion 29, and an outer surface thereof is the treatment instrument guide 24.
It has the same curvature as the outer surface of. Further, a screw hole 32 is formed in the first butting surface 22 formed in the cutout portion 21 of the tip forming portion 10 facing the through hole 28.
The treatment instrument guider 24 is fixed to the notch 21 of the distal end forming portion 10 by screwing the fixing screw 30.
Further, a clearance 33 is formed between the treatment instrument guide 24 and the first and second abutting surfaces 22, 23 and between the through hole 28 and the fixing screw 30, and the clearance 33 is made of silicone. A system adhesive 34 is filled.
このように構成された内視鏡１によれば、その挿入部３
の先端に設けた先端構成部１０の切欠部２１に固定され
る処置具誘導子２４は固定ねじ３０によって先端構成部
１０に対して着脱自在であり、誘導溝２６の形状、たと
えば第２図に符号２６ａ、２６ｂに示すように曲率、溝
の断面形状が異なる複数種類の処置具誘導子２４を用意
することによって交換することができる。つまり、処置
具挿通用チャンネル１４に挿通される処置具３５に応じ
て処置具誘導子２４を交換することができ、処置具３５
の先端部を視野内でしかも目的の部位に確実に誘導でき
る。According to the endoscope 1 thus configured, the insertion portion 3
The treatment instrument guider 24 fixed to the notch 21 of the distal end forming portion 10 provided at the distal end of the is removable with respect to the distal end forming portion 10 by a fixing screw 30, and the shape of the guide groove 26, for example, as shown in FIG. As shown by reference numerals 26a and 26b, it is possible to replace them by preparing a plurality of types of treatment tool inductors 24 having different curvatures and groove cross-sectional shapes. That is, the treatment instrument guider 24 can be replaced according to the treatment instrument 35 inserted through the treatment instrument insertion channel 14, and the treatment instrument 35 can be replaced.
The tip of the can be reliably guided to the target site within the field of view.
なお、前記一実施例においては、先端構成部１０と処置
具誘導子２４との間および貫通穴２８と固定ねじ３０と
の間のクリアランス部３３に接着剤３４を充填し、汚物
や粘液等の侵入を防止するようにしたが、クリアランス
が生じないように密着させれば接着剤３４を充填させる
必要がなく、処置具誘導子２４の交換が容易に行なえ
る。In the above-described embodiment, the adhesive 34 is filled in the clearance portion 33 between the distal end forming portion 10 and the treatment instrument guider 24 and between the through hole 28 and the fixing screw 30 to remove dirt, mucus, etc. Although the invasion is prevented, it is not necessary to fill the adhesive 34 with the adhesive 34 so that the treatment tool guider 24 can be easily replaced if they are closely attached so that no clearance is generated.
以上説明したように、この考案によれば、先端構成部に
処置具誘導子を着脱自在に固定することによって遠隔操
作のための操作ノブ、操作ワイヤ等が不要となり、挿入
部の細径化と操作部の小型化、軽量化を図ることができ
る。したがって、患者に与える苦痛を軽減できるととも
に術者の操作性を向上できるという効果がある。As described above, according to the present invention, by detachably fixing the treatment tool guider to the distal end configuration section, the operation knob, the operation wire, etc. for remote operation are not required, and the insertion section can be reduced in diameter. It is possible to reduce the size and weight of the operation unit. Therefore, it is possible to reduce the pain to the patient and improve the operability of the operator.
図面はこの考案の一実施例を示すもので、第１図は先端
構成部の平面図、第２図は第１図のII−II線に沿う断面
図、第３図は第１図のIII−III線に沿う断面図、第４図
は第１図のIV−IV線に沿う断面図、第５図は内視鏡全体
の斜視図である。 ３…挿入部、１０…先端構成部、１４…処置具挿入用チ
ャンネル、２４…処置具誘導子、２５…開口部、２６…
誘導溝、３５…処置具。FIG. 1 shows an embodiment of the present invention. FIG. 1 is a plan view of a tip forming portion, FIG. 2 is a sectional view taken along line II-II of FIG. 1, and FIG. 3 is III of FIG. -III is a sectional view taken along the line, FIG. 4 is a sectional view taken along the line IV-IV in FIG. 1, and FIG. 5 is a perspective view of the entire endoscope. 3 ... Insertion part, 10 ... Tip structure part, 14 ... Treatment tool insertion channel, 24 ... Treatment tool inductor, 25 ... Opening part, 26 ...
Guide groove, 35 ... Treatment tool.
Claims (1)
け、この先端構成部に観察光学系と処置具挿通用チャン
ネルとを設けた内視鏡において、前記先端構成部には切
欠部が形成され、この切欠部には前記先端構成部の処置
具挿通用チャンネルの開口部が開口し、前記切欠部の形
状と略同一で、略円弧状の各種誘導溝形状を有した複数
の処置具誘導子のうちのひとつを着脱自在に設けたこと
を特徴とする内視鏡。1. An endoscope in which a distal end portion is provided at a distal end portion of an insertion portion of an endoscope, and an observation optical system and a treatment instrument insertion channel are provided at the distal end portion, the distal end portion being provided with the distal end portion. A notch is formed, and an opening of the treatment instrument insertion channel of the distal end forming portion is opened in the notch, and a plurality of guide grooves having substantially the same arc shape as the notch are formed. An endoscope characterized in that one of the treatment tool inductors is detachably provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987114579U JPH063525Y2 (en) | 1987-07-28 | 1987-07-28 | Endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987114579U JPH063525Y2 (en) | 1987-07-28 | 1987-07-28 | Endoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6420801U JPS6420801U (en) | 1989-02-01 |
| JPH063525Y2 true JPH063525Y2 (en) | 1994-02-02 |
Family
ID=31355455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987114579U Expired - Lifetime JPH063525Y2 (en) | 1987-07-28 | 1987-07-28 | Endoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH063525Y2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0340245Y2 (en) * | 1981-02-25 | 1991-08-23 | ||
| JPS5850884U (en) * | 1981-09-28 | 1983-04-06 | 中浅測器株式会社 | Pen cartridge for recording pen |
| JPS60220031A (en) * | 1984-04-16 | 1985-11-02 | オリンパス光学工業株式会社 | Endoscope |
-
1987
- 1987-07-28 JP JP1987114579U patent/JPH063525Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6420801U (en) | 1989-02-01 |
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