JPS62164432A - Endoscope - Google Patents
EndoscopeInfo
- Publication number
- JPS62164432A JPS62164432A JP61007474A JP747486A JPS62164432A JP S62164432 A JPS62164432 A JP S62164432A JP 61007474 A JP61007474 A JP 61007474A JP 747486 A JP747486 A JP 747486A JP S62164432 A JPS62164432 A JP S62164432A
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- Japan
- Prior art keywords
- section
- bending
- bending operation
- insertion section
- endoscope
- 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.)
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Links
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- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Endoscopes (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
［産業上の利用分野コ
本発明は湾曲操作ワイヤで挿入部の湾曲管を湾曲操作す
るようにした内視鏡に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an endoscope in which a bending tube of an insertion section is bent by a bending operation wire.
［従来の技術］
一般に、内視鏡は手元操作部に連結した挿入部を可撓管
、湾曲管および先端構成部から構成し、この挿入部に挿
通して湾曲管の先端に対して左右および上下それぞれの
湾曲操作ワイヤの先端を取着するとともに、これらの湾
曲操作ワイヤの基端側を手元操作部の本体内に回転可能
に設けたドラムに巻装したものである。そして、上記ド
ラムを回転操作することにより湾曲操作ワイヤの巻き込
みと巻き戻しを行ない、各湾曲操作ワイヤを押し引きす
れば、上記湾曲管を所要方向へ湾曲させ得るようになっ
ている。[Prior Art] In general, an endoscope has an insertion section connected to a hand-operated operation section that includes a flexible tube, a curved tube, and a tip component, and is inserted through the insertion section to the left, right, and right sides with respect to the tip of the curved tube. The tips of the upper and lower bending operation wires are attached, and the proximal ends of these bending operation wires are wound around a drum rotatably provided within the main body of the hand operation section. By rotating the drum, the bending operation wires are wound in and unwound, and by pushing and pulling each bending operation wire, the bending tube can be bent in a desired direction.
ところで、湾曲操作ワイヤにたるみ（遊び）があると、
術者の操作する手が受ける感覚に微妙な影響を与え、感
違いによる誤操作を招き、危険な場合がある。このため
、湾曲操作ワイヤのたるみを可及的に少なくして組み立
てておかなければならない。By the way, if there is slack (play) in the bending operation wire,
It has a subtle effect on the sensation felt by the operator's operating hand, leading to erroneous operation due to misunderstanding, which can be dangerous. Therefore, it is necessary to assemble the bending operation wire with as little slack as possible.
しかしながら、この装置を反復使用する間において湾曲
操作ワイヤの伸び、あるいは連結管等の関連機構部材の
形状変化によって使用初期の操作量に対する湾曲操作ワ
イヤの実際の移動量に変化をきたす傾向がある。このよ
うに経時的使用によって操作上の遊びが生じる。このよ
うな遊びを放置すると、予め設定した操作部材の操作量
域をもってしては先端構成部の湾曲範囲が減少（アング
ルダウン）して観察範囲が挟まりまたは希望する細胞採
取などの処置に困難をきたす。However, during repeated use of this device, the actual amount of movement of the bending operation wire tends to change with respect to the amount of operation at the beginning of use due to elongation of the bending operation wire or changes in the shape of related mechanical members such as connecting pipes. In this way, operational play occurs due to use over time. If such play is left unaddressed, the range of curvature of the tip component will decrease (angle down) within the preset operating range of the operating member, resulting in the observation range being pinched or making it difficult to perform desired procedures such as cell collection. Come.
したがって、従来の内視鏡においては手元操作部の本体
においてワイヤの長さを縮めたりそのドラムと移動体と
の連結位置の再設定を遊びが生じるごとに逐次行なう必
要があった。そして、この作業はその操作部の本体をわ
ざわざ分解して行なう大がかりなものであり、はなはだ
厄介なものであった。Therefore, in the conventional endoscope, it was necessary to shorten the length of the wire in the main body of the hand-operated part and to reset the connection position between the drum and the movable body every time play occurred. This work was a large-scale operation that required disassembling the main body of the operating section, and was extremely troublesome.
一方、実公昭５９−３１２０２号公報ではアングルワイ
ヤを固設したねじ部とその摺動体によりアングルワイヤ
の調節を行なうものであるが、これはその調節機構が複
雑で多大な空間部を必要とする。さらに、上記同様に操
作部の本体をわざわざ分解して行なうことから同じよう
な欠点かある。On the other hand, in Japanese Utility Model Publication No. 59-31202, the angle wire is adjusted using a threaded part to which the angle wire is fixed and its sliding body, but the adjustment mechanism is complicated and requires a large amount of space. . Furthermore, similar to the above, since the main body of the operating section is disassembled, there are similar drawbacks.
［発明が解決しようとする問題点］
上記従来の技術においては、いずれも手元操作部の本体
を少なくとも分解しなければ、湾曲操作ワイヤの遊びを
除去する調整作業を行なうことができない。したがって
、はなはだ厄介なものであった。さらに、その調整機構
を設けるとすれば、構造がきわめて複雑になり、また、
多大な空間部を必要とする欠点があった。[Problems to be Solved by the Invention] In all of the above-mentioned conventional techniques, adjustment work to eliminate play in the bending operation wire cannot be performed without at least disassembling the main body of the hand operation section. Therefore, it was extremely troublesome. Furthermore, if such an adjustment mechanism were to be provided, the structure would be extremely complicated, and
It has the disadvantage of requiring a large amount of space.
本発明は上記事情に着目してなされたもので、その目的
とするところは比較的簡単な構成でありながら大がかり
な分解作業を伴うことなく、外部からの簡単な作業によ
り湾曲操作ワイヤの張り具合を容易に修正することがで
きる内視鏡を提供することにある。The present invention has been made in view of the above-mentioned circumstances, and its purpose is to provide a relatively simple structure that does not involve large-scale disassembly work, and allows easy operation from the outside to adjust the tension of the bending operation wire. The object of the present invention is to provide an endoscope that can be easily modified.
［問題点を解決するための手段および作用コ本発明は操
作部における操作により湾曲操作ワイヤを押し引きして
挿入部の湾曲管部分を湾曲操作する内視鏡において、上
記挿入部とこれを支持する操作部の連結部本体部分とを
合わせた上記湾曲操作ワイヤに沿う長さを調整する機構
を設けたものである。[Means and effects for solving the problem] The present invention provides an endoscope in which a bending operation wire is pushed and pulled by an operation in an operation section to bend a bending tube portion of an insertion section, and the present invention provides an endoscope for bending a bending tube portion of an insertion section. A mechanism is provided for adjusting the length along the bending operation wire including the connecting portion main body portion of the operation portion.
そして、この調整する機構によりその挿入部とこれを支
持する操作部の連結部本体部分とを合わせた長さを調整
することにより湾曲操作ワイヤの張り具合を調整できる
ようになっている。The tension of the bending operation wire can be adjusted by adjusting the total length of the insertion section and the connecting section main body of the operation section that supports the insertion section using this adjusting mechanism.
［実施例］
第１図および第３図は本発明の第１の実施例を示すもの
である。[Embodiment] FIGS. 1 and 3 show a first embodiment of the present invention.
第２図は内視鏡１を示し、この内視鏡１は操作部２と挿
入部３とからなり、上記操作部２にはライトガイドケー
ブル４が連結されている。上記挿入部３は可撓管５の先
端に湾曲管６を介して先端部７を連結してなり、上記湾
曲管８はその操作部２から挿入部３にわたって挿通され
た複数の湾曲操作ワイヤ８・・・を押し引きすることに
より湾曲させられるようになっている。この各湾曲操作
ワイヤ８・・・の先端は湾曲管６の先端または先端部７
に連結されている。また、この湾曲操作ワイヤ８・・・
の各基端側はそれぞれ操作部２内に設けた牽引操作機構
（図示しない）に連結されていて、外部に設けた操作ノ
ブ９によりその牽引操作機構を操作して各湾曲操作ワイ
ヤ８・・・を押し引きするようになっている。FIG. 2 shows an endoscope 1, which includes an operating section 2 and an insertion section 3, and a light guide cable 4 is connected to the operating section 2. The insertion section 3 is formed by connecting a distal end section 7 to the distal end of a flexible tube 5 via a bending tube 6, and the bending tube 8 has a plurality of bending operation wires 8 inserted from the operation section 2 to the insertion section 3. It can be curved by pushing and pulling... The tip of each bending operation wire 8... is the tip of the bending tube 6 or the tip 7
is connected to. In addition, this bending operation wire 8...
Each proximal end side of each of the bending operation wires 8 is connected to a traction operation mechanism (not shown) provided in the operating section 2, and the traction operation mechanism is operated by an operation knob 9 provided outside to bend each bending operation wire 8...・It is designed to push and pull.
また、第１図で示すように上記挿入部３の基端は操作部
２における連結部本体１１に対して連結されている。す
なわち、挿入部３の基端に連結金具［２を取着し、この
連結金具１２は止めリング１８により連結部本体１１に
締結して固定されている。Further, as shown in FIG. 1, the proximal end of the insertion portion 3 is connected to a connecting portion main body 11 in the operating portion 2. As shown in FIG. That is, a connecting fitting [2 is attached to the base end of the insertion portion 3, and this connecting fitting 12 is fastened and fixed to the connecting portion main body 11 with a retaining ring 18.
さらに、挿入部３における可撓管５の基端付近は折止め
用チューブ１４により被嵌されている。そして、この折
止め用チューブ１４で被嵌される上記可撓管５の基端付
近は連結金具１２側の基端部分１５と延出部分１６とに
分割されている。この基端部分１５と延出部分１６との
各突合せ端部外周には逆ねじのねじ部１７．１８が形成
されている。たとえば基端部分１５のねじ部１７には右
ねじ、延出部分１６のねじ部１８には左ねじが刻設され
ている。また、この各ねじ部１７．１８には筒状の調整
ねじ１９がそれぞれねじ込まれている。つまり、調整ね
じ１９の基端側部分の内周には右ねじのねじ部１７が螺
合するねじ部２１が形成され、また、先端側部分の内周
には左ねじのねじ部ｊ８が螺合するねじ部２２が形成さ
れている。さらに、この調整ねじ１９は上記各ねじ部１
７、ｔｉｌｌに被嵌螺合する緩止めリング２３ 、２４
により押え付けられている。そして、第２図で示すよう
に可撓管５の基端部分１５と延出部分１６が突き当る状
態で組み立てられている。Furthermore, the vicinity of the proximal end of the flexible tube 5 in the insertion portion 3 is fitted with a securing tube 14 . The vicinity of the proximal end of the flexible tube 5, which is fitted with the securing tube 14, is divided into a proximal end portion 15 on the side of the connecting fitting 12 and an extending portion 16. Reverse thread threads 17 and 18 are formed on the outer periphery of each abutting end of the base end portion 15 and the extension portion 16. For example, the threaded portion 17 of the proximal end portion 15 has a right-handed thread, and the threaded portion 18 of the extension portion 16 has a left-handed thread. Further, a cylindrical adjusting screw 19 is screwed into each of the threaded portions 17,18. That is, a threaded portion 21 into which the right-handed threaded portion 17 is screwed is formed on the inner periphery of the proximal end portion of the adjustment screw 19, and a left-handed threaded portion j8 is threaded on the inner periphery of the distal end portion. A mating threaded portion 22 is formed. Furthermore, this adjusting screw 19 is
7. Loosening rings 23 and 24 that are screwed into the till
is being held down by As shown in FIG. 2, the flexible tube 5 is assembled in such a manner that the proximal end portion 15 and the extending portion 16 abut against each other.
しかして、上記内視鏡１を使用し、湾曲管６の湾曲操作
を繰り返すことにより湾曲操作ワイヤ８・・・自体、あ
るいはこの連結部分が延び、その湾曲操作ワイヤ８・・
・にたるみが生じることがある。By repeating the bending operation of the bending tube 6 using the endoscope 1, the bending operation wire 8 itself or its connecting portion is extended, and the bending operation wire 8...
・Sagging may occur.
そこで、このたるみを除去し、湾曲操作ワイヤ８・・・
に初期設定時と同じ緊張力を与える場合には、折止めチ
ューブ１４を取外しあるいはずらして調整ねじ１９を設
けた挿入部３の基端付近を露出させる。Therefore, this slack is removed and the bending operation wire 8...
When applying the same tension as at the time of initial setting, the bending tube 14 is removed or shifted to expose the vicinity of the proximal end of the insertion portion 3 provided with the adjustment screw 19.
そして、緩止めリング２３．２４を緩めてこの調整ねじ
１９を廻わして第３図で示すように基端部分１５と延出
部分１６を引き離す。つまり、ねじ部１７．１８は逆ね
じの関係にあるから、その調整ねじ１９を回転すること
により第３図で示すようにその基端部分１５と延出部分
１６を引き離すことができる。そして、湾曲操作ワイヤ
８・・−に初期設定時と同じ緊張力を与えたところで緩
止めリング２３．２４を締めてその調整ねじ１９をその
位置に固定する。最後に折止めチューブ１４を元に戻す
。The locking rings 23, 24 are then loosened and the adjusting screw 19 is turned to separate the proximal portion 15 and the extending portion 16 as shown in FIG. That is, since the threaded portions 17, 18 are in a reverse threaded relationship, by rotating the adjusting screw 19, the proximal end portion 15 and the extending portion 16 can be separated as shown in FIG. Then, when the same tension as at the time of initial setting is applied to the bending operation wires 8...-, the locking rings 23 and 24 are tightened to fix the adjustment screw 19 in that position. Finally, return the folded tube 14 to its original position.
しかして、上記構成によれば、挿入部３の可撓管６自体
の長さを調整でき、これにより湾曲操作ワイヤ８・・・
の緊張力を再び初期設定時と同じくできる。しかも、こ
の調整作業は操作部２を分解することなく、外部から直
接的に行なうことができる。また、その調整する機構が
簡単な構成であるとともに多大なスペースをとらずに構
成できる。According to the above configuration, the length of the flexible tube 6 itself of the insertion section 3 can be adjusted, and thereby the bending operation wire 8...
The tension can be set again to the same as the initial setting. Furthermore, this adjustment work can be performed directly from the outside without disassembling the operating section 2. Further, the adjusting mechanism has a simple structure and can be constructed without taking up a large amount of space.
第４図ないし第６図は本発明の第２の実施例を示すもの
である。4 to 6 show a second embodiment of the present invention.
この実施例は挿入部３における可撓管５の基端に筒状の
つなぎ部材３１を取着してなり、このつなぎ部材３１は
操作部２側の連結部本体１１に設けた連結用筒状部３２
に対して摺動自在で密に被嵌するものである。さらに、
つなぎ部材３１には挿入部３の軸方向に沿う長孔３３，
３３が形成されている。また、連結用筒状部３２には上
記長孔３３．３３をそれぞれ貫通する止めねじ３４．３
４が植設されている。そして、この止めねじ３４，３４
によりそのつなぎ部材３１を締め付けて固定するように
なっている。In this embodiment, a cylindrical connecting member 31 is attached to the proximal end of the flexible tube 5 in the insertion section 3. Part 32
It is slidable and tightly fitted into the holder. moreover,
The connecting member 31 has a long hole 33 along the axial direction of the insertion portion 3,
33 is formed. Further, the connecting cylindrical part 32 has set screws 34.3 passing through the elongated holes 33.33, respectively.
4 have been planted. And these set screws 34, 34
The connecting member 31 is tightened and fixed.
そして、初期設定時においては第４図および第５図で示
すようにつなぎ部材３１を連結用筒状部３２に最も深く
差し込んだ位置において止めねじ３４．３４を締め付け
、その両者を固定する。このとき連結部本体１１と挿入
部３とを合せた長さは最も短かい。At the time of initial setting, as shown in FIGS. 4 and 5, the set screws 34 and 34 are tightened at the position where the connecting member 31 is inserted the deepest into the connecting cylindrical portion 32 to fix both. At this time, the combined length of the connecting portion main body 11 and the insertion portion 3 is the shortest.
また、湾曲操作ワイヤ８・・・にたるみが生じた場合に
は折止めチューブ１４およびこれを支持する部材３５を
前方にずらす。そして、止めねじ３４．３４を緩め、つ
なぎ部材３１を前方へ移動し、湾曲操作ワイヤ８・・・
に初期設定時と同じ緊張力を与えたところで止め、たと
えば第６図で示す位置において止めねじ３４，３４を再
び締め付けてつなぎ部材３１を連結用筒状部３２に固定
する。そして、再び折止めチューブ１４およびこれを支
持する部材３５を元の位置に戻す。Further, when the bending operation wires 8 are slackened, the bending tube 14 and the member 35 that supports it are shifted forward. Then, loosen the setscrews 34, 34, move the connecting member 31 forward, and bend the operating wire 8...
The connecting member 31 is fixed to the connecting cylindrical portion 32 by applying the same tension as at the time of initial setting and then tightening the setscrews 34 again at the position shown in FIG. 6, for example. Then, the folded tube 14 and the member 35 supporting it are returned to their original positions.
［発明の効果］
以上説明したように本発明によれば、操作部内における
湾曲操作ワイヤの連結部を修正する面倒がなく、挿入部
とこれを支持する操作部の連結部本体部分とを合せた長
さを容易に調整して湾曲操作ワイヤの緊張力を初期設定
時間と同じく与えることができる。[Effects of the Invention] As explained above, according to the present invention, there is no need to modify the connecting portion of the bending operation wire in the operating section, and the insertion section and the connecting section main body portion of the operating section that supports it can be combined. By easily adjusting the length, the tension force of the bending operation wire can be applied at the same time as the initial setting time.
第１図は第１の実施例における要部の側断面図、第２図
は同じくその実施例における内視鏡全体の側面図、第３
図は同じくその実施例における挿入部の基端付近の側断
面図、第４図は第２の実施例における要部の側断面図、
第５図および第６図は同じくその実施例における挿入部
の基端連結部の異なる状態における平面図である。
■・・・内視鏡、３・・・挿入部、５・・・可撓管、６
・・・湾曲管、８・・・湾曲操作ワイヤ、１１・・・連
結部本体、１５・・・基端部分、１６・・・延出部分、
１７・・・ね、じ部、１８・・・ねじ部、１９・・・調
整ねじ、２１・・・ねじ部、２２・・・ねじ部、３１・
・・つなぎ部材、３２・・・連結用筒状部、３３・・長
孔、３４・・・止めねじ。
出願人代理人 弁理士 坪井 淳
第４図
第５図
第６図
＝１０Ｑ−FIG. 1 is a side sectional view of the main parts in the first embodiment, FIG. 2 is a side view of the entire endoscope in the same embodiment, and FIG.
The figure is a side sectional view of the vicinity of the proximal end of the insertion portion in the same embodiment, and FIG. 4 is a side sectional view of the main part in the second embodiment.
5 and 6 are plan views of the proximal connecting portion of the insertion portion in different states in the same embodiment. ■... Endoscope, 3... Insertion section, 5... Flexible tube, 6
... Curving tube, 8... Curving operation wire, 11... Connecting portion main body, 15... Base end portion, 16... Extending portion,
17...Threaded part, 18...Threaded part, 19...Adjustment screw, 21...Threaded part, 22...Threaded part, 31...
... Connecting member, 32 ... Connecting cylindrical part, 33 ... Long hole, 34 ... Set screw. Applicant's agent Patent attorney Jun Tsuboi Figure 4 Figure 5 Figure 6 = 10Q-
Claims (3)
わたって内挿した湾曲操作ワイヤを操作部における操作
により押し引きして上記挿入部の湾曲管部分を湾曲操作
する内視鏡において、上記挿入部とこれを支持する操作
部の連結部本体部分とを合わせた上記湾曲操作ワイヤに
沿う長さを調整する機構を設けたことを特徴とする内視
鏡。(1) An endoscope in which an insertion section is connected to the operation section, and a bending operation wire inserted from the operation section to the insertion section is pushed and pulled by an operation on the operation section to bend the bending tube portion of the insertion section, An endoscope comprising a mechanism for adjusting the length along the bending operation wire of the insertion section and the connecting section main body portion of the operation section that supports the insertion section.
ることを特徴とする特許請求の範囲第１項に記載の内視
鏡。(2) The endoscope according to claim 1, wherein the adjusting mechanism is provided in an intermediate portion of the insertion section.
分に設けてなることを特徴とする特許請求の範囲第１項
に記載の内視鏡。(3) The endoscope according to claim 1, wherein the adjusting mechanism is provided at a portion connecting the insertion section and the operating section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61007474A JPH0642865B2 (en) | 1986-01-17 | 1986-01-17 | Endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61007474A JPH0642865B2 (en) | 1986-01-17 | 1986-01-17 | Endoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62164432A true JPS62164432A (en) | 1987-07-21 |
| JPH0642865B2 JPH0642865B2 (en) | 1994-06-08 |
Family
ID=11666779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61007474A Expired - Fee Related JPH0642865B2 (en) | 1986-01-17 | 1986-01-17 | Endoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0642865B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05228097A (en) * | 1992-02-20 | 1993-09-07 | Fuji Photo Optical Co Ltd | Internal body cavity diagnosing apparatus |
| JP2002360509A (en) * | 2001-06-07 | 2002-12-17 | Pentax Corp | Endoscope having device for raising instrument for medical treatment |
| JP2012065880A (en) * | 2010-09-24 | 2012-04-05 | Fujifilm Corp | Endoscope |
| JP2022537839A (en) * | 2019-08-07 | 2022-08-30 | 湖南省華芯医療器械有限公司 | hand end of endoscope |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5143030U (en) * | 1974-09-26 | 1976-03-30 | ||
| JPS60163414U (en) * | 1984-04-07 | 1985-10-30 | 富士写真光機株式会社 | Connection device between the observation section insertion section and the operation section in an endoscope |
-
1986
- 1986-01-17 JP JP61007474A patent/JPH0642865B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5143030U (en) * | 1974-09-26 | 1976-03-30 | ||
| JPS60163414U (en) * | 1984-04-07 | 1985-10-30 | 富士写真光機株式会社 | Connection device between the observation section insertion section and the operation section in an endoscope |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05228097A (en) * | 1992-02-20 | 1993-09-07 | Fuji Photo Optical Co Ltd | Internal body cavity diagnosing apparatus |
| JP2002360509A (en) * | 2001-06-07 | 2002-12-17 | Pentax Corp | Endoscope having device for raising instrument for medical treatment |
| JP2012065880A (en) * | 2010-09-24 | 2012-04-05 | Fujifilm Corp | Endoscope |
| CN102415868A (en) * | 2010-09-24 | 2012-04-18 | 富士胶片株式会社 | Endoscope |
| JP2022537839A (en) * | 2019-08-07 | 2022-08-30 | 湖南省華芯医療器械有限公司 | hand end of endoscope |
| US11980337B2 (en) | 2019-08-07 | 2024-05-14 | Hunan Vathin Medical Instrument Co., Ltd. | Handle of endoscope with self-locking assembly and insertion end positioning assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0642865B2 (en) | 1994-06-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |