JPH08238247A - Treating part structure for treating device for endoscope - Google Patents
Treating part structure for treating device for endoscopeInfo
- Publication number
- JPH08238247A JPH08238247A JP7044546A JP4454695A JPH08238247A JP H08238247 A JPH08238247 A JP H08238247A JP 7044546 A JP7044546 A JP 7044546A JP 4454695 A JP4454695 A JP 4454695A JP H08238247 A JPH08238247 A JP H08238247A
- Authority
- JP
- Japan
- Prior art keywords
- endoscope
- treating
- sliding contact
- sliding parts
- contact surfaces
- 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
Abstract
Description
【0001】[0001]
【産業上の利用分野】この発明は、手術や医療検査など
に用いられる内視鏡用処置具において、内視鏡を介して
体内に挿入される連動索の先端部に設けた処置部の構造
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a treatment instrument for an endoscope used for surgery or medical examinations, which has a structure of a treatment portion provided at a distal end portion of an interlocking cord inserted into the body through the endoscope. It is about.
【0002】[0002]
【従来の技術及び発明が解決しようとする課題】実開昭
64ー26017号公報に示す従来の内視鏡用処置具に
おいては、内視鏡を介して体内に挿入される連動索(密
巻コイル製シースや操作ワイヤなど)の先端部に設けら
れた処置部の両採取刃体(生検カップ)が操作部により
遠隔操作されて開閉するようになっている。2. Description of the Related Art In the conventional endoscopic treatment tool disclosed in Japanese Utility Model Laid-Open No. 64-26017, an interlocking cord (closely wound) inserted into the body through the endoscope is disclosed. Both sampling blades (biopsy cups) of the treatment section provided at the distal end of the coiled sheath, operation wire, etc. are opened and closed by being remotely operated by the operation section.
【0003】このような内視鏡用処置具では、下記
(イ)の点に留意しなければならない。 (イ) 処置部の両採取刃体の動きを滑らかにして体内
組織の採取を確実に行う。この点は手術や医療検査など
の技術向上に必要である。In such an endoscopic treatment tool, attention must be paid to the following point (a). (B) Smoothly move the two collection blades of the treatment section to collect the internal tissue reliably. This point is necessary for improving techniques such as surgery and medical examinations.
【0004】本発明は、上記留意点に鑑み、処置部の動
きを滑らかにすることを目的としている。The present invention has been made in view of the above points and aims to smooth the movement of the treatment portion.
【0005】[0005]
【課題を解決するための手段】後記実施例の図面(図1
〜4)の符号を援用して本発明を説明する。内視鏡用処
置具においては、内視鏡を介して体内に挿入される連動
索(6)の先端部に設けられた処置部(10)が、操作
部(1)により遠隔操作されて作動されるようになって
いる。BRIEF DESCRIPTION OF THE DRAWINGS FIG.
The present invention will be described with reference to the symbols (4) to (4). In the treatment tool for an endoscope, a treatment section (10) provided at a distal end portion of an interlocking cord (6) inserted into the body via the endoscope is operated by being remotely operated by the operation section (1). It is supposed to be done.
【0006】特に、前記処理部(10)に設けられた各
種摺動部品(11,15,16,17,18,19,2
0,21,22,23)の摺接面にフッ素樹脂コーティ
ングが施されている。In particular, various sliding parts (11, 15, 16, 17, 18, 19, 2 provided on the processing section (10).
0, 21, 22, 23) has a fluororesin coating on its sliding contact surface.
【0007】[0007]
【作用】前記各種摺動部品(11,15,16,17,
18,19,20,21,22,23)の摺接面上にフ
ッ素樹脂コーティングが施されていると、両摺接面間の
摩擦係数が低くなり、各種摺動部品(11,15,1
6,17,18,19,20,21,22,23)が滑
らかに動く。[Function] The various sliding parts (11, 15, 16, 17,
When the fluororesin coating is applied to the sliding contact surfaces of 18, 19, 20, 21, 21, 23 and 23), the friction coefficient between the sliding contact surfaces becomes low and various sliding parts (11, 15, 1)
6, 17, 18, 19, 20, 21, 21, 23) move smoothly.
【0008】[0008]
【実施例】以下、本発明の一実施例にかかる内視鏡用処
置具を図面を参照して説明する。図1に示すように、操
作部1は、筒体2と口体3と第一指掛け体4と第二指掛
け体5とを備えている。この口体3は筒体2の先端部に
嵌着されている。この第一指掛け体4は筒体2の基端部
に挿嵌され、筒体2の延設方向回りで回動可能に支持さ
れている。この第二指掛け体5は筒体2に対しその延設
方向へ移動可能に支持されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An endoscopic treatment tool according to an embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the operation unit 1 includes a tubular body 2, a mouth body 3, a first finger hanging body 4, and a second finger hanging body 5. The mouth 3 is fitted to the tip of the cylinder 2. The first finger hook 4 is inserted into the base end of the tubular body 2 and is rotatably supported around the extending direction of the tubular body 2. The second finger hook 5 is supported on the tube body 2 so as to be movable in the extending direction.
【0009】図1に示す連動策6は、内視鏡(図示せ
ず)を介して体内に挿入されるものであって、操作ワイ
ヤ7(図2参照)と保護パイプ8と保護コイル9とから
なる。前記筒体2内でこの操作ワイヤ7の基端部が保護
パイプ8内に挿入されて半田付けされている。この操作
ワイヤ7及び保護パイプ8は前記第二指掛け体5に挿入
されて連結されている。この保護コイル9は操作ワイヤ
7及び保護パイプ8の外周に巻装され、この保護コイル
9の基端部が前記口体3内で半田付けされてこの口体3
から引き出されている。この保護コイル9の先端部に処
置部10が取り付けられている。The interlocking mechanism 6 shown in FIG. 1 is inserted into the body through an endoscope (not shown), and includes an operating wire 7 (see FIG. 2), a protective pipe 8 and a protective coil 9. Consists of. The proximal end of the operating wire 7 is inserted into the protective pipe 8 and soldered in the tubular body 2. The operation wire 7 and the protection pipe 8 are inserted and connected to the second finger hook body 5. The protective coil 9 is wound around the outer periphery of the operation wire 7 and the protective pipe 8, and the base end portion of the protective coil 9 is soldered in the mouth body 3 so that the mouth body 3 is protected.
Is derived from. A treatment section 10 is attached to the tip of the protective coil 9.
【0010】この処置部10においては、図2及び図3
に示すように、保護コイル9の先端部に両腕部11が取
着され、この両腕部11に対し両採取刃体13,14が
開閉機構12を介して支持されている。この開閉機構1
2においては、両腕部11間で両採取刃体13,14の
レバー15,16が両腕部11上の固定中心軸17によ
り回動可能に支持され、この両レバー15,16の先端
部にそれぞれリンク18,19が永久中心軸20,21
により回動可能に支持されているとともに、この両リン
ク18,19の先端部が永久中心軸22により回動可能
に連結されている。この永久中心軸22には前記操作ワ
イヤ7の先端部が連結体23により取着されている。2 and 3 in this treatment section 10.
As shown in FIG. 2, both arm portions 11 are attached to the tip end portion of the protection coil 9, and both sampling blade bodies 13 and 14 are supported by the both arm portions 11 via an opening / closing mechanism 12. This opening / closing mechanism 1
In FIG. 2, the levers 15 and 16 of both sampling blades 13 and 14 are rotatably supported by the fixed center shaft 17 on both arm portions 11 between both arm portions 11, and the tip portions of both levers 15 and 16 are rotatably supported. Links 18 and 19 are respectively attached to the central axes 20 and 21.
Is rotatably supported by, and the tip ends of both links 18 and 19 are rotatably connected by a permanent central shaft 22. The distal end of the operation wire 7 is attached to the permanent central shaft 22 by a connecting body 23.
【0011】図4に示すように、前記両採取刃体13,
14はカップ体24,25を有し、それらの外面から前
記レバー15,16が延設されている。この両カップ体
24,25はその内側に採取室26を有し、この採取室
26が開放されてその開放部26aの環状周縁に刃先部
27が形成されている。As shown in FIG. 4, the two sampling blades 13,
14 has cup bodies 24 and 25, and the levers 15 and 16 extend from the outer surfaces thereof. Each of the cup bodies 24 and 25 has a collection chamber 26 inside thereof, and the collection chamber 26 is opened to form a cutting edge portion 27 on the annular peripheral edge of the open portion 26a.
【0012】前記第一指掛け体4と第二指掛け体5とに
指を掛け、この第二指掛け体5を第一指掛け体4に近付
けるように筒体2の延設方向へ移動させて操作ワイヤ7
を引くと、図1(a)及び図2(a)に示すように、前
記開閉機構12においてその固定中心軸17から永久中
心軸22が離れ、前記両カップ体24,25が互いに閉
じてその刃先部17が当接する。一方、この第二指掛け
体5を第一指掛け体4から離すように筒体2の延設方向
へ押すと、これに前記保護コイル9の戻り力も加わり、
図1(b)及び図2(b)に示すように、前記開閉機構
12においてその固定中心軸17に永久中心軸22が近
付き、前記両カップ体24,25が互いに開いてその刃
先部27が離れる。A finger is placed on the first finger-hanging body 4 and the second finger-hanging body 5, and the second finger-hanging body 5 is moved in the extending direction of the tubular body 2 so that the second finger-hanging body 5 approaches the first finger-hanging body 4. 7
1A and 2A, the permanent central shaft 22 is separated from the fixed central shaft 17 of the opening / closing mechanism 12, and the cup bodies 24 and 25 are closed to each other, as shown in FIGS. The cutting edge portion 17 abuts. On the other hand, when the second finger hanging body 5 is pushed in the extending direction of the cylindrical body 2 so as to be separated from the first finger hanging body 4, the return force of the protection coil 9 is also added to this.
As shown in FIGS. 1 (b) and 2 (b), in the opening / closing mechanism 12, the permanent central axis 22 approaches the fixed central axis 17 of the opening / closing mechanism 12, the cup bodies 24 and 25 are opened to each other, and the cutting edge portion 27 thereof is opened. Leave.
【0013】前記処置部10においては、その各種摺動
部品が互いに摺接する。この各種摺動部品の摺接面とし
ては、 開閉機構12中にある両採取刃体13,14のレバ
ー15,16や両リンク18,19やワイヤ連結体23
と両腕部11との間の摺接面、 この両レバー15,16と固定中心軸17との間の
摺接面、 この両レバー15,16や両リンク18,19やワ
イヤ連結体23と各永久中心軸20,21,22との間
の摺接面、 この両レバー15,16と両リンク18,19とワ
イヤ連結体23との間の摺接面などを挙げることができ
る。In the treatment section 10, the various sliding parts are in sliding contact with each other. The sliding contact surfaces of these various sliding parts include levers 15 and 16 of both sampling blades 13 and 14 in the opening / closing mechanism 12, both links 18 and 19, and a wire connecting body 23.
And the two arm portions 11, the sliding contact surface between the levers 15 and 16 and the fixed central shaft 17, the levers 15 and 16, the links 18 and 19, and the wire connecting body 23. The sliding contact surface between the permanent central shafts 20, 21, 22 and the sliding contact surface between the levers 15, 16 and the links 18, 19 and the wire connecting body 23 may be mentioned.
【0014】これらの摺接面にフッ素樹脂コーティング
が施されている。このフッ素樹脂としては、ポリ四フッ
化エチレン(テフロン)を利用している。本実施例は下
記(イ)〜(ロ)の特徴を有する。A fluororesin coating is applied to these sliding contact surfaces. Polytetrafluoroethylene (Teflon) is used as the fluororesin. This embodiment has the following characteristics (a) to (b).
【0015】(イ) 前記各種摺動部品(腕部11並び
に開閉機構12のレバー15,16、固定中心軸17、
リンク18,19、永久中心軸20,21,22及びワ
イヤ連結体23)の摺接面上にフッ素樹脂コーティング
が施されていると、各摺接面間の摩擦係数が低くなり、
各種摺動部品が滑らかに動く。従って、両採取刃体1
3,14の開閉動作が円滑になって体内組織の採取を確
実に行うことができ、手術や医療検査などの技術向上に
役立つ。(A) The various sliding parts (the arms 15 and the levers 15 and 16 of the opening / closing mechanism 12, the fixed center shaft 17,
If the fluororesin coating is applied to the sliding contact surfaces of the links 18, 19, the permanent central shafts 20, 21, 22 and the wire connecting body 23), the friction coefficient between the sliding contact surfaces becomes low,
Various sliding parts move smoothly. Therefore, both sampling blades 1
The opening and closing operations of the parts 3 and 14 can be smoothly performed, and the internal tissue can be surely collected, which is useful for improving techniques such as surgery and medical examination.
【0016】(ロ) 前記各種摺動部品の摺接面上に施
されているフッ素樹脂コーティングは、耐熱性や耐薬品
性に著しく優れている。 前記実施例以外にも下記(イ)〜(ハ)のように構成し
てもよい。(B) The fluororesin coating provided on the sliding contact surfaces of the various sliding parts is remarkably excellent in heat resistance and chemical resistance. In addition to the above-mentioned embodiment, the following (a) to (c) may be adopted.
【0017】(イ) 前記フッ素樹脂としては、ポリ四
フッ化エチレン(テフロン)のほかに、例えば、ポリ三
フッ化ー塩化エチレン(Kel-F)やポリフッ化エチレン・
プロピレン(テフロン100)などを利用する。(A) As the fluororesin, in addition to polytetrafluoroethylene (Teflon), for example, polytrifluoro-ethylene chloride (Kel-F) or polyfluoroethylene
Propylene (Teflon 100) or the like is used.
【0018】(ロ) 前記採取刃体13,14(採取
体)以外の処理体に変更する。 (ハ) 前記各種摺動部品の摺接面上のすべてにフッ素
樹脂コーティングを施す必要はなく、その一部にのみフ
ッ素樹脂コーティングを施す。(B) A processing body other than the collection blade bodies 13 and 14 (collection body) is changed. (C) It is not necessary to apply the fluororesin coating to all the sliding contact surfaces of the various sliding parts, and only a part thereof is applied with the fluororesin coating.
【0019】各実施例から把握できる技術的思想(請求
項以外)を効果とともに記載する。 (イ) 請求項1の処置部10にあっては、連動索6の
操作ワイヤ7により両採取体(両採取刃体13,14)
を開閉機構12を介して開閉可能に設け、この開閉機構
12にある各種摺動部品(リンク機構である開閉機構1
2のレバー15,16、固定中心軸17、リンク18,
19、永久中心軸20,21,22及びワイヤ連結体2
3)の摺接面上にフッ素樹脂コーティングを施す。従っ
て、開閉機構12の各摺接面間の摩擦係数が低くなって
各種摺動部品が滑らかに動き、両採取体(両採取刃体1
3,14)の開閉動作が円滑になる。The technical idea (other than claims) that can be understood from each embodiment will be described together with the effects. (A) In the treatment section 10 according to claim 1, both the sampling bodies (both sampling blades 13 and 14) are operated by the operation wire 7 of the interlocking rope 6.
Is provided so as to be opened and closed through the opening / closing mechanism 12, and various sliding parts (opening / closing mechanism 1 which is a link mechanism) in the opening / closing mechanism 12 are provided.
2 levers 15, 16, fixed central shaft 17, link 18,
19, permanent central axes 20, 21, 22 and wire connecting body 2
Fluorine resin coating is applied on the sliding contact surface of 3). Therefore, the friction coefficient between the sliding contact surfaces of the opening / closing mechanism 12 becomes low, and various sliding parts move smoothly, so that both sampling bodies (both sampling blades 1
3, 14) opening and closing operations become smooth.
【0020】[0020]
【発明の効果】本発明にかかる内視鏡用処置具によれ
ば、処置部(10)の各種摺動部品(11,15,1
6,17,18,19,20,21,22,23)がそ
の摺接面上のフッ素樹脂コーティングにより滑らかに動
き、処置部(10)の動作が円滑になって体内組織の採
取を確実に行うことができ、手術や医療検査などの技術
向上に役立つとともに、耐熱性や耐薬品性にも優れてい
る。According to the endoscopic treatment tool of the present invention, various sliding parts (11, 15, 1) of the treatment section (10) are provided.
6,17,18,19,20,21,22,23) move smoothly by the fluororesin coating on the sliding contact surface, the operation of the treatment section (10) becomes smooth, and the collection of body tissue is ensured. It can be performed and is useful for improving techniques such as surgery and medical examinations, and has excellent heat resistance and chemical resistance.
【図1】 (a)は内視鏡用処置具において両採取刃体
の閉状態を示す一部切欠き正面図であり、(b)は同じ
く開状態を示す一部切欠き正断面図である。FIG. 1 (a) is a partially cutaway front view showing a closed state of both sampling blades in a treatment instrument for an endoscope, and FIG. 1 (b) is a partially cutaway front sectional view also showing an opened state. is there.
【図2】 (a)は図1(a)の処置部を示す部分拡大
正断面図であり、(b)は図1(b)の処置部を示す部
分拡大正断面図である。2A is a partially enlarged front sectional view showing the treatment portion of FIG. 1A, and FIG. 2B is a partially enlarged front sectional view showing the treatment portion of FIG. 1B.
【図3】 図1(a)のXーX線視部分拡大図である。FIG. 3 is an enlarged view of a portion taken along line XX of FIG.
【図4】 (a)は前記処置部の両採取刃体を示す部分
斜視図であり、(b)はこの両採取刃体の閉状態を示す
図2(a)の一部切欠き断面図である。4 (a) is a partial perspective view showing both sampling blades of the treatment section, and FIG. 4 (b) is a partially cutaway sectional view of FIG. 2 (a) showing a closed state of both sampling blades. Is.
1…操作部、6…連動索、7…操作ワイヤ、10…処置
部、11…腕部、12…開閉機構、13…採取刃体、1
4…採取刃体、15…レバー、16…レバー、17…固
定中心軸、18…リンク、19…リンク、20…永久中
心軸、21…永久中心軸、22…永久中心軸、23…ワ
イヤ連結体、24…カップ体、25…カップ体、27…
刃先部。DESCRIPTION OF SYMBOLS 1 ... Operation part, 6 ... Interlocking rope, 7 ... Operation wire, 10 ... Treatment part, 11 ... Arm part, 12 ... Opening / closing mechanism, 13 ... Collection blade, 1
4 ... sampling blade, 15 ... lever, 16 ... lever, 17 ... fixed central axis, 18 ... link, 19 ... link, 20 ... permanent central axis, 21 ... permanent central axis, 22 ... permanent central axis, 23 ... wire connection Body, 24 ... Cup body, 25 ... Cup body, 27 ...
Blade part.
Claims (1)
(6)の先端部に設けた処置部(10)を操作部(1)
により遠隔操作して作動させる内視鏡用処置具におい
て、 前記処置部(10)に設けた各種摺動部品(11,1
5,16,17,18,19,20,21,22,2
3)の摺接面にフッ素樹脂コーティングを施したことを
特徴とする内視鏡用処置具における処置部構造。1. A treatment section (10) provided at a distal end portion of an interlocking cord (6) inserted into a body through an endoscope, and an operation section (1).
In a treatment tool for an endoscope which is remotely operated by means of various types, various sliding parts (11, 1) provided in the treatment section (10) are provided.
5,16,17,18,19,20,21,22,2
3) A treatment section structure in a treatment instrument for endoscope, wherein the sliding contact surface of 3) is coated with a fluororesin.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7044546A JPH08238247A (en) | 1995-03-03 | 1995-03-03 | Treating part structure for treating device for endoscope |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7044546A JPH08238247A (en) | 1995-03-03 | 1995-03-03 | Treating part structure for treating device for endoscope |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH08238247A true JPH08238247A (en) | 1996-09-17 |
Family
ID=12694507
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7044546A Pending JPH08238247A (en) | 1995-03-03 | 1995-03-03 | Treating part structure for treating device for endoscope |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH08238247A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19748017C2 (en) * | 1996-11-01 | 2000-10-26 | Kai R & D Center Co | Surgical instrument |
US6232730B1 (en) | 1998-06-05 | 2001-05-15 | Matsushita Electric Industrial Co., Ltd. | Brushless motor driving circuit and a method of controlling the brushless motor driving circuit |
JP2009101136A (en) * | 2007-08-31 | 2009-05-14 | Tyco Healthcare Group Lp | Surgical instrument having plastic surface |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6389185A (en) * | 1986-09-30 | 1988-04-20 | 長谷川刃物株式会社 | Scissors |
JPS6426017U (en) * | 1987-08-04 | 1989-02-14 | ||
JPH07100270A (en) * | 1993-10-05 | 1995-04-18 | Kaijirushi Hamono Kaihatsu Center:Kk | Blade body of various kinds of blades |
-
1995
- 1995-03-03 JP JP7044546A patent/JPH08238247A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6389185A (en) * | 1986-09-30 | 1988-04-20 | 長谷川刃物株式会社 | Scissors |
JPS6426017U (en) * | 1987-08-04 | 1989-02-14 | ||
JPH07100270A (en) * | 1993-10-05 | 1995-04-18 | Kaijirushi Hamono Kaihatsu Center:Kk | Blade body of various kinds of blades |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19748017C2 (en) * | 1996-11-01 | 2000-10-26 | Kai R & D Center Co | Surgical instrument |
US6232730B1 (en) | 1998-06-05 | 2001-05-15 | Matsushita Electric Industrial Co., Ltd. | Brushless motor driving circuit and a method of controlling the brushless motor driving circuit |
JP2009101136A (en) * | 2007-08-31 | 2009-05-14 | Tyco Healthcare Group Lp | Surgical instrument having plastic surface |
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