JPH08238245A - Sampling blade structure for treating device for endoscope - Google Patents
Sampling blade structure for treating device for endoscopeInfo
- Publication number
- JPH08238245A JPH08238245A JP7043253A JP4325395A JPH08238245A JP H08238245 A JPH08238245 A JP H08238245A JP 7043253 A JP7043253 A JP 7043253A JP 4325395 A JP4325395 A JP 4325395A JP H08238245 A JPH08238245 A JP H08238245A
- Authority
- JP
- Japan
- Prior art keywords
- sampling
- edge parts
- endoscope
- opening
- blades
- 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
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/06—Biopsy forceps, e.g. with cup-shaped jaws
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/04—Endoscopic instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B17/295—Forceps for use in minimally invasive surgery combined with cutting implements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00526—Methods of manufacturing
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採取
刃体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 an endoscopic treatment tool used for surgery, medical examinations, etc., for collecting a treatment portion provided at the distal end of an interlocking cord inserted into the body through an endoscope. It relates to a blade structure.
【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）〜（ロ）の点に留意しなければならない。 （イ） 両採取刃体の切れ味を向上させて体内組織の採
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 instrument, the following points (a) to (b) must be noted. (B) Improve the sharpness of both sampling blades and collect the internal tissue reliably. This point is necessary for improving techniques such as surgery and medical examinations.
【０００４】（ロ） 使用後に両採取刃体の内外面の洗
浄を容易かつ確実に行う。この点は衛生上必要である。 本発明は上記留意点に鑑み採取刃体構造を改良したもの
である。(B) The inner and outer surfaces of both sampling blades are easily and surely cleaned after use. This point is necessary for hygiene. The present invention has improved the structure of the sampling blade in view of the above points.
【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。前記処置部（１０）にあっては、前記連動索
（６）の操作ワイヤ（７）により両採取刃体（１３，１
４）が開閉機構（１２）を介して開閉可能に設けられて
いる。この両採取刃体（１３，１４）にあっては、それ
らの開閉に伴い接離する刃先部（２７）が設けられてい
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. In the treatment section (10), the operation wires (7) of the interlocking rope (6) are used to remove both sampling blades (13, 1).
4) is provided so as to be openable / closable via an opening / closing mechanism (12). Each of these sampling blade bodies (13, 14) is provided with a blade tip portion (27) that comes into contact with and separates from each other as they open and close.
【０００６】特に、この両採取刃体（１３，１４）のう
ち少なくとも刃先部（２７）に電解研摩が施されてい
る。[0006] In particular, at least the cutting edge portion (27) of the two collecting blade bodies (13, 14) is electrolytically polished.
【０００７】[0007]
【作用】この電解研摩により、両採取刃体（１３，１
４）においてその刃先部（２７）の面が鏡面仕上げさ
れ、切断時の摩擦抵抗が小さくなるとともに、表面あら
さが非常に小さくなる。Function: By this electrolytic polishing, both sampling blades (13, 1)
In 4), the surface of the cutting edge portion (27) is mirror-finished, the frictional resistance during cutting becomes small, and the surface roughness becomes extremely small.
【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（リンク機構）を介して支持されている。
この開閉機構１２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１
５，１６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 protective coil 9, and both sampling blade bodies 13 and 14 are supported by the both arm portions 11 via an opening / closing mechanism 12 (link mechanism). .
In the opening / closing mechanism 12, the levers 15 and 16 of the sampling blades 13 and 14 are rotatably supported between the arm portions 11 by a fixed center shaft 17 on the arm portions 11.
Links 18 and 19 are rotatably supported by the permanent central shafts 20 and 21, respectively, at the distal ends of the links 5 and 16, and the distal ends of the links 18 and 19 are connected to the permanent central shaft 22.
Are rotatably connected by. This permanent central axis 22
The distal end of the operation wire 7 is attached to the connection body 23 by means of 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
１７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 the cutting edge portion 17 on the annular peripheral edge of the opening 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】前記両採取刃体１３，１４においては、そ
のカップ体２４，２５の開放部２６ａの環状周縁にまず
荒刃付け加工が行われる。次に、この採取刃体１３，１
４にのみ、又は、この採取刃体１３，１４を組み立てた
処置部１０の全体（この採取刃体１３，１４のほか腕部
１１及び開閉機構１２を含む）に電解研摩が施されて仕
上げ刃付けが行われる。ここに電解研摩とは、一般に、
研摩品を陽極として電解液中に吊るし、適当な条件下で
電解して光輝ある平滑面を得る処理手段である。この電
解研摩は、第一に、機械的仕上げ方法では、加工による
力及び熱のために、工作物の表面に歪みを残したり、あ
るいは組織を変化させたりするなどのいわゆる加工変質
層を生じさせ易いが、このような加工変質層を生じさせ
ないで平滑面を得られること、第二に、複雑な形状のも
のや線やはくなどの研摩ができること、第三に、軟質の
金属の鏡面仕上げが容易にできること、第四に、多数の
工作物を一つの装置で同時に仕上げ得ることなどの特徴
がある。In both of the above-mentioned sampling blades 13 and 14, a rough blade attachment process is first performed on the annular peripheral edge of the open portion 26a of the cup bodies 24 and 25. Next, this sampling blade 13,1
No. 4 or the entire treatment section 10 in which the sampling blades 13 and 14 are assembled (including the sampling blades 13 and 14 as well as the arm 11 and the opening / closing mechanism 12) is subjected to electrolytic polishing to obtain a finishing blade. It is attached. Here, electropolishing generally means
It is a treatment means for suspending an abrasive article as an anode in an electrolytic solution and electrolyzing under an appropriate condition to obtain a bright smooth surface. This electrolytic polishing, in the mechanical finishing method, firstly causes a so-called work-affected layer such as leaving a strain on the surface of the workpiece or changing the structure due to the force and heat by the working. It is easy, but it is possible to obtain a smooth surface without producing such a work-affected layer, secondly, it is possible to polish complicated shapes, lines and foils, and thirdly, mirror finish of soft metal. Fourthly, it is possible to finish many work pieces simultaneously with one device.
【００１４】本実施例は下記（イ）〜（ロ）の特徴を有
する。 （イ） 両採取刃体１３，１４において、そのカップ体
２４，２５の内外面、特に刃先部２７の内外面が鏡面仕
上げされるので、切断時の摩擦抵抗が小さくなり、両採
取刃体１３，１４の切れ味が向上し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。This embodiment has the following characteristics (a) to (b). (A) In both sampling blades 13 and 14, the inner and outer surfaces of the cup bodies 24 and 25, especially the inner and outer surfaces of the blade tip portion 27 are mirror-finished, so that the frictional resistance at the time of cutting becomes small, and the two sampling blades 13 and , 14 can be improved in sharpness and the internal tissues can be surely collected, which is useful for improving techniques such as surgery and medical examination.
【００１５】（ロ） 同じく鏡面仕上げされるので、表
面あらさ（面に残る凹凸の最大高さ）が非常に小さくな
り、使用後に両採取刃体１３，１４の内外面の洗浄を行
ったとき、浅い凹凸内に残る汚れを容易かつ確実に除去
することができ、衛生的である。(B) Since it is also mirror-finished, the surface roughness (the maximum height of the unevenness remaining on the surface) becomes very small, and when the inner and outer surfaces of both sampling blades 13 and 14 are washed after use, It is hygienic because dirt remaining in the shallow unevenness can be easily and reliably removed.
【００１６】前記実施例以外にも下記（イ）のように構
成してもよい。 （イ） 両採取刃体１３，１４のカップ体２４，２５の
うち刃先部２７にのみ電解研摩を施す。In addition to the above embodiment, the following configuration (a) may be adopted. (A) Electrolytic polishing is applied only to the blade tip portion 27 of the cup bodies 24 and 25 of both the sampling blade bodies 13 and 14.
【００１７】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（両採取刃体１３，１４
のほか腕部１１及び開閉機構１２を含む。この開閉機構
１２はレバー１５，１６、固定中心軸１７、リンク１
８，１９、永久中心軸２０，２１，２２及びワイヤ連結
体２３を有する。）に電解研摩を施す。従って、使用後
に処置部１０の洗浄を行ったとき、浅い凹凸内に残る汚
れを容易かつ確実に除去することができ、衛生的であ
る。The technical ideas (other than claims) that can be understood from each embodiment will be described together with the effects. (A) The treatment section 10 according to claim 1 (both sampling blades 13, 14).
In addition, the arm portion 11 and the opening / closing mechanism 12 are included. The opening / closing mechanism 12 includes levers 15 and 16, a fixed central shaft 17, and a link 1.
8, 19, permanent shafts 20, 21, 22 and a wire connecting body 23. ) Is electrolytically polished. Therefore, when the treatment section 10 is washed after use, dirt remaining in the shallow unevenness can be easily and surely removed, which is hygienic.
【００１８】[0018]
【発明の効果】本発明にかかる内視鏡用処置具によれ
ば、両採取刃体（１３，１４）の刃先部（２７）の切れ
味が向上し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、使用
後に両採取刃体（１３，１４）の刃先部（２７）の面の
洗浄を行ったとき、浅い凹凸内に残る汚れを容易かつ確
実に除去することができ、衛生的である。According to the endoscopic treatment tool of the present invention, the sharpness of the blade tips (27) of both sampling blades (13, 14) is improved and the internal tissue can be reliably collected. You can
Helps improve techniques such as surgery and medical inspection, and easily and reliably removes stains remaining in shallow unevenness when the surfaces of the blade tips (27) of both sampling blades (13, 14) are cleaned after use. Can be hygienic.
【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斜視
図であり、（ｂ）はこの両採取刃体の閉状態を示す一部
切欠き断面図である。FIG. 4 (a) is a perspective view showing both sampling blades of the treatment section, and FIG. 4 (b) is a partially cutaway sectional view showing the closed state of both sampling blades.
１…操作部、６…連動索、７…操作ワイヤ、１０…処置
部、１２…開閉機構、１３…採取刃体、１４…採取刃
体、２７…刃先部。DESCRIPTION OF SYMBOLS 1 ... Operation part, 6 ... Interlocking rope, 7 ... Operation wire, 10 ... Treatment part, 12 ... Opening / closing mechanism, 13 ... Collection blade body, 14 ... Collection blade body, 27 ... Blade tip 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）にあっては、前記連動索（６）の操
作ワイヤ（７）により両採取刃体（１３，１４）を開閉
機構（１２）を介して開閉可能に設け、 この両採取刃体（１３，１４）にあっては、それらの開
閉に伴い接離する刃先部（２７）を設け、 この両採取刃体（１３，１４）のうち少なくとも刃先部
（２７）に電解研摩を施したことを特徴とする内視鏡用
処置具における採取刃体構造。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 the treatment tool for an endoscope which is remotely operated by means of the above, in the treatment section (10), both collection blades (13, 14) are opened and closed by the operation wire (7) of the interlocking rope (6). The collecting blades (13, 14) are provided so as to be openable and closable via a mechanism (12). , 14), at least the blade tip portion (27) of which is subjected to electrolytic polishing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7043253A JPH08238245A (en) | 1995-03-02 | 1995-03-02 | Sampling blade structure for treating device for endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7043253A JPH08238245A (en) | 1995-03-02 | 1995-03-02 | Sampling blade structure for treating device for endoscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08238245A true JPH08238245A (en) | 1996-09-17 |
Family
ID=12658712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7043253A Pending JPH08238245A (en) | 1995-03-02 | 1995-03-02 | Sampling blade structure for treating device for endoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08238245A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005030063A1 (en) * | 2003-09-26 | 2005-04-07 | Johnson And Johnson Kabushiki Kaisha | Medical treatment instrument |
| WO2012029688A1 (en) | 2010-08-30 | 2012-03-08 | マニー株式会社 | Medical knife |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5369763A (en) * | 1976-12-02 | 1978-06-21 | Matsushita Electric Works Ltd | Outer dege for an electric razor |
| JPS53134557A (en) * | 1977-04-26 | 1978-11-24 | Sanyo Electric Co Ltd | Method of working outer blade of electric razor |
| JPS6426017U (en) * | 1987-08-04 | 1989-02-14 |
-
1995
- 1995-03-02 JP JP7043253A patent/JPH08238245A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5369763A (en) * | 1976-12-02 | 1978-06-21 | Matsushita Electric Works Ltd | Outer dege for an electric razor |
| JPS53134557A (en) * | 1977-04-26 | 1978-11-24 | Sanyo Electric Co Ltd | Method of working outer blade of electric razor |
| JPS6426017U (en) * | 1987-08-04 | 1989-02-14 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005030063A1 (en) * | 2003-09-26 | 2005-04-07 | Johnson And Johnson Kabushiki Kaisha | Medical treatment instrument |
| WO2012029688A1 (en) | 2010-08-30 | 2012-03-08 | マニー株式会社 | Medical knife |
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