JPH08238246A - Sampling blade structure for treating device for endoscope - Google Patents
Sampling blade structure for treating device for endoscopeInfo
- Publication number
- JPH08238246A JPH08238246A JP7043254A JP4325495A JPH08238246A JP H08238246 A JPH08238246 A JP H08238246A JP 7043254 A JP7043254 A JP 7043254A JP 4325495 A JP4325495 A JP 4325495A JP H08238246 A JPH08238246 A JP H08238246A
- Authority
- JP
- Japan
- Prior art keywords
- blade
- endoscope
- grinding
- line
- extending direction
- 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.)
- Granted
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） 両採取刃体の耐久性を向上させて
体内組織の採取を確実に行う。この点も手術や医療検査
などの技術向上に必要である。ところが、従来の内視鏡
用処置具においては、一般に、図６に示すように、両採
取刃体１３，１４の刃先部２７が研削により設けられ、
その環状刃線２８の延設方向Ａに対し研削目Ｇの延設方
向Ｂが平行になっている。これは研削の容易性を考慮し
たものであるが、逆に下記（イ）〜（ロ）の欠点があ
る。(B) The durability of both sampling blades is improved to reliably collect internal tissue. This point is also necessary for improving techniques such as surgery and medical examinations. However, in a conventional endoscopic treatment tool, generally, as shown in FIG. 6, the blade tips 27 of both the sampling blades 13 and 14 are provided by grinding,
The extending direction B of the grinding stitch G is parallel to the extending direction A of the annular blade line 28. This is because the ease of grinding is taken into consideration, but conversely, it has the following disadvantages (a) to (b).
【０００５】（イ） 両採取刃体１３，１４において、
その刃先部２７にできる山２７ａと谷２７ｂとがその環
状刃線２８に対し平行になっているとともに、この環状
刃線２８に沿って山２８ａまたは谷２８ｂが延びる。従
って、切断時にこれらの山２７ａ，２８ａが切断抵抗と
なるため、両採取刃体１３，１４の切れ味が悪くなって
体内組織の採取を確実に行うことができない。(A) In both sampling blades 13 and 14,
The peaks 27a and valleys 27b formed on the cutting edge portion 27 are parallel to the annular blade line 28, and the peaks 28a or valleys 28b extend along the annular blade line 28. Therefore, since the peaks 27a and 28a act as cutting resistance during cutting, the sharpness of both the sampling blades 13 and 14 becomes poor, and the internal tissue cannot be reliably collected.
【０００６】（ロ） 図６（ｄ）（ｅ）に示すように刃
線２８の延設方向Ａに対し直交する平面Ｐ上で、図６
（ｃ）の矢印方向の曲げ力ＦＰが生じた場合、その曲げ
力ＦＰに対し変形し易くなる。一方、図６（ｃ）（ｄ）
（ｅ）に示すように刃線２８の延設方向Ａに対し平行な
平面Ｑ上で、矢印方向の曲げ力ＦＱが生じた場合につい
ては、刃先部２７が環状であるため、刃先部２７やその
刃線２８の形状に関係なく曲げ強度は大きい。従って、
刃先部２７やその刃線２８の耐久性は前記曲げ力ＦＰに
対し弱くなる。(B) As shown in FIGS. 6D and 6E, on the plane P orthogonal to the extending direction A of the blade line 28,
When the bending force FP in the direction of the arrow (c) is generated, the bending force FP easily deforms. On the other hand, FIG. 6 (c) (d)
As shown in (e), when the bending force FQ in the direction of the arrow is generated on the plane Q parallel to the extending direction A of the blade line 28, the blade tip portion 27 is annular, and therefore the blade tip portion 27 or The bending strength is high regardless of the shape of the blade line 28. Therefore,
The durability of the blade tip portion 27 and the blade line 28 thereof is weak against the bending force FP.
【０００７】本発明は、上記留意点に鑑み、切れ味や耐
久性を向上させる刃体構造を提供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 an object thereof is to provide a blade structure which improves sharpness and durability.
【０００８】[0008]
【課題を解決するための手段】後記実施例の図面（図１
〜５）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）が研削により設
けられている。BRIEF DESCRIPTION OF THE DRAWINGS FIG.
The present invention will be described with reference to the symbols (5) to (5). 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). In both of the sampling blade bodies (13, 14), a blade tip portion (27) that comes into contact with and separates from each other as they are opened and closed is provided by grinding.
【０００９】特に、この両採取刃体（１３，１４）の刃
先部（２７）のうち少なくとも一方のものにあっては、
その刃線（２８）の延設方向（Ａ）に対し研削目（Ｇ）
の延設方向（Ｂ）を交差させた。In particular, at least one of the cutting edge portions (27) of both sampling blade bodies (13, 14) is
Grinding marks (G) with respect to the extending direction (A) of the blade line (28)
The extending direction (B) was crossed.
【００１０】[0010]
【作用】両採取刃体（１３，１４）において、その刃先
部（２７）に山（２７ａ）と谷（２７ｂ）、特にその刃
線（２８）に山（２８ａ）と谷（２８ｂ）とができるの
で、切断時に刃先部（２７）やその刃線（２８）と体内
組織との切断抵抗が小さくなるとともに、切断後の体内
組織が刃先部（２７）やその刃線（２８）の山（２７
ａ，２８ａ）及び谷（２７ｂ，２８ｂ）に案内されて付
着しにくくなる。また、刃線（２８）の延設方向（Ａ）
に対し交差する平面（Ｐ）上で曲げ力（ＦＰ）が生じた
場合、その曲げ力（ＦＰ）に対し変形しにくくなる。In the two sampling blades (13, 14), the cutting edge portion (27) has peaks (27a) and valleys (27b), and especially the blade line (28) has peaks (28a) and valleys (28b). Therefore, the cutting resistance between the blade tip portion (27) and its blade line (28) and the body tissue at the time of cutting becomes small, and the body tissue after the cutting has a mountain portion of the blade tip portion (27) and the blade line (28) ( 27
a, 28a) and the valleys (27b, 28b) make it difficult to adhere. Also, the extending direction (A) of the blade line (28)
When a bending force (FP) is generated on a plane (P) that intersects with, the deformation becomes difficult with respect to the bending force (FP).
【００１１】[0011]
【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１〜５を参照して説明する。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 FIGS.
【００１２】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。As shown in FIG. 1, the operating section 1 comprises a cylinder body 2, a mouth body 3, a first finger hook 4 and a second finger hook 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. The second finger hook 5 is supported on the tube body 2 so as to be movable in the extending direction.
【００１３】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.
【００１４】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.
【００１５】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.
【００１６】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 as to come close to the first finger hanging body 4 to operate the operation wire. 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.
【００１７】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の環状周縁で外面
に砥石により刃付けが行われて前記刃先部２７が形成さ
れている。この場合、図５（ａ）に示すように、この両
採取刃体１３，１４の刃先部２７にあっては、その環状
刃線２８の延設方向Ａに対し研削目Ｇの延設方向Ｂ（両
カップ体２４，２５の開閉方向と一致）が直交して交差
している。従って、図５（ｂ）に示すようにこの刃先部
２７では研削目Ｇの山２７ａと谷２７ｂとがこの延設方
向Ｂへ延びてこの環状刃線２８に至り、図５（ｃ）
（ｄ）に示すようにこの環状刃線２８の外面がその山２
８ａと谷２８ｂとで極めて浅い波形状になる。In both of the sampling blade bodies 13 and 14, the outer peripheral surface of the open portion 26a of the cup bodies 24 and 25 is bladed with a grindstone on the outer surface to form the blade tip portion 27. In this case, as shown in FIG. 5 (a), in the cutting edge portions 27 of both the sampling blade bodies 13 and 14, the extending direction B of the grinding stitch G with respect to the extending direction A of the annular blade line 28 thereof. (Matching with the opening / closing direction of both cup bodies 24 and 25) intersects at right angles. Therefore, as shown in FIG. 5B, in the cutting edge portion 27, the ridges 27a and the valleys 27b of the ground stitch G extend in the extending direction B to reach the annular blade line 28, and FIG.
As shown in (d), the outer surface of the annular blade line 28 is the mountain 2
An extremely shallow wave shape is formed between 8a and the valley 28b.
【００１８】本実施例は下記（イ）〜（ロ）の特徴を有
する。 （イ） 両採取刃体１３，１４のカップ体２４，２５に
おいて、その刃先部２７に山２７ａと谷２７ｂ、特にそ
の環状刃線２８に山２８ａと谷２８ｂとができるので、
切断時に刃先部２７やその刃線２８と体内組織との切断
抵抗が小さくなるとともに、切断後の体内組織が刃先部
２７やその刃線２８の山２７ａ，２８ａ及び谷２７ｂ，
２８ｂに案内されて付着しにくくなる。従って、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 the cup bodies 24, 25 of both the sampling blade bodies 13, 14, since the ridges 27a and the valleys 27b are formed on the blade edge portion 27, and especially the ridges 28a and the valleys 28b are formed on the annular blade line 28,
At the time of cutting, the cutting resistance between the blade tip portion 27 and its blade line 28 and the body tissue becomes small, and the body tissue after cutting has the peaks 27a, 28a and valleys 27b of the blade tip portion 27 and its blade line 28,
28b makes it difficult to adhere. Therefore, the sharpness of both the collecting blades 13 and 14 is improved, and the internal tissue can be surely collected, which is useful for improving the technique such as surgery and medical examination.
【００１９】（ロ） 同じく刃先部２７の山２７ａと谷
２７ｂ、特にその環状刃線２８の山２８ａと谷２８ｂと
により、曲げ強度が大きくなる。すなわち、図５（ｃ）
（ｄ）に示すように刃線２８の延設方向Ａに対し直交す
る平面Ｐ上で、図４（ｂ）及び図５（ｂ）の矢印方向の
曲げ力ＦＰが生じた場合、その曲げ力ＦＰに対し変形し
にくくなる。一方、図５（ｂ）（ｃ）（ｄ）に示すよう
に刃線２８の延設方向Ａに対し平行な平面Ｑ上で、図５
（ｃ）（ｄ）の矢印方向の曲げ力ＦＱが生じた場合につ
いては、カップ体２４，２５の刃先部２７が環状である
ため、刃先部２７やその刃線２８の形状に関係なく曲げ
強度は大きい。従って、刃先部２７やその刃線２８の耐
久性が向上する。(B) Similarly, the ridges 27a and the valleys 27b of the cutting edge portion 27, and particularly the ridges 28a and the valleys 28b of the annular blade line 28, increase the bending strength. That is, FIG. 5 (c)
When a bending force FP in the arrow direction of FIGS. 4B and 5B is generated on the plane P orthogonal to the extending direction A of the blade line 28 as shown in FIG. It becomes difficult to deform with respect to FP. On the other hand, as shown in FIGS.
(C) In the case where the bending force FQ in the direction of the arrow is generated, since the blade tip portion 27 of the cup bodies 24 and 25 is annular, the bending strength is irrelevant regardless of the shape of the blade tip portion 27 or the blade line 28 thereof. Is big. Therefore, the durability of the blade tip portion 27 and the blade line 28 thereof is improved.
【００２０】前記実施例以外にも下記（イ）〜（ハ）の
ように構成してもよい。 （イ） 前記実施例では両刃先部２７の環状刃線２８の
延設方向Ａに対し研削目Ｇの延設方向Ｂが直交して交差
しているが、この延設方向Ａに対し研削目Ｇの延設方向
Ｂを例えば４５度前後傾斜させて交差させる。この傾斜
方向は両刃先部２７について互いに同一方向にするか又
は逆方向にする。さらに、研削目Ｇの延設方向Ｂは、前
記実施例のように直線的であっても、図示しないが円弧
状であってもよい。この場合にも、上記（イ）（ロ）の
特徴を有する。In addition to the above-mentioned embodiment, the following (a) to (c) may be adopted. (A) In the above-described embodiment, the extending direction B of the grinding edge G intersects the extending direction A of the annular blade line 28 of the double-edged cutting edge portion 27 at a right angle. The extending direction B of G is inclined at 45 degrees, for example, so as to intersect. The inclination directions of the two cutting edge portions 27 are the same or opposite to each other. Further, the extending direction B of the grinding stitch G may be linear as in the above-mentioned embodiment, or may be arcuate although not shown. In this case as well, the characteristics of the above (a) and (b) are provided.
【００２１】（ロ） 前記実施例では刃付けに砥石によ
る研削を利用したが、その他に例えば、ヤスリやバフや
サテン（朱子織の布）などを利用する。一般に狭義の研
削とは、砥石車に回転を与えて高速度で切削を行う加工
法を言うが、本発明に言う研削とは、広義に解して、こ
れらのものも含む。(B) In the above embodiment, grinding with a grindstone was used for the blade attachment, but in addition, a file, buff, satin (satin cloth) or the like may be used. In general, grinding in a narrow sense refers to a processing method in which a grinding wheel is rotated to perform cutting at a high speed, but the grinding referred to in the present invention is broadly understood to include these.
【００２２】（ハ） 前記実施例ではカップ体２４，２
５の開放部２６ａの環状周縁で外面に砥石により刃付け
が行われて刃先部２７が形成されているが、この環状周
縁の内面または内外両面に対し砥石により刃付けを行
う。(C) In the above embodiment, the cup bodies 24, 2
Although the outer peripheral surface of the open portion 26a of No. 5 is bladed with a grindstone on the outer surface to form the blade edge portion 27, the inner surface or both inner and outer surfaces of the annular peripheral edge is grinded with the grindstone.
【００２３】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の刃線２８の延設方向Ａに対し研削目
Ｇの延設方向Ｂをほぼ直交させて交差させた。従って、
切断抵抗が最も小さくなり、切れ味が良くなる。The technical idea (other than claims) that can be understood from each embodiment will be described together with the effects. (A) The extending direction A of the grinding line G is intersected with the extending direction A of the blade line 28 according to the first aspect. Therefore,
Cutting resistance is minimized and sharpness is improved.
【００２４】[0024]
【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。また、曲げ強度が大きくなって
刃先部（２７）やその刃線（２８）の耐久性が向上す
る。According to the endoscopic treatment instrument of the present invention, the sharpness of both sampling blades (13, 14) can be improved and the internal tissue can be reliably sampled. Useful for improving technology. Further, the bending strength is increased, and the durability of the blade tip portion (27) and the blade line (28) thereof is improved.
【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.
【図５】 （ａ）は図４（ｂ）のＹ1 ーＹ1 線視概略部
分拡大図であり、（ｂ）は（ａ）のＹ2 ーＹ2 線概略部
分拡大図であり、（ｃ）は（ａ）のＹ3 ーＹ 3 線概略部
分拡大図であり、（ｄ）は（ａ）のＹ4 ーＹ4 線概略部
分拡大図である。5 (a) is Y of FIG. 4 (b).1-Y1Line-of-sight schematic part
It is a minute enlarged view, (b) is Y of (a)2-Y2Line outline part
It is a minute enlarged view, (c) is Y of (a)3-Y 3Line outline part
It is a minute enlarged view, (d) is Y of (a).Four-YFourLine outline part
FIG.
【図６】 （ａ）は従来の内視鏡用処置具において両採
取刃体の閉状態を示す前記図４（ｂ）相当図であり、
（ｂ）は（ａ）のＺ1 ーＺ1 線視概略部分拡大図であ
り、（ｃ）は（ｂ）のＺ2 ーＺ2 線概略部分拡大図であ
り、（ｄ）は（ｂ）のＺ3 ーＺ3 線概略部分拡大図であ
り、（ｅ）は（ｂ）のＺ4 ーＺ4 線概略部分拡大図であ
る。FIG. 6 (a) is a view corresponding to FIG. 4 (b) showing a closed state of both sampling blades in a conventional endoscopic treatment tool;
(B) is a schematic partial enlarged view of (a) taken along line Z 1 -Z 1 , (c) is a schematic partial enlarged view of line (Z 2 -Z 2 ) of (b), and (d) is (b). FIG. 3 is a schematic partially enlarged view of a Z 3 -Z 3 line of FIG. 3 , and (e) is a schematic partially enlarged view of a Z 4 -Z 4 line of (b).
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、２４…カップ体、２５…カップ体、２７…刃先部、
２８…刃線、Ｇ…研削目、Ａ…刃線延設方向、Ｂ…研削
目延設方向。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, 24 ... Cup body, 25 ... Cup body, 27 ... Blade tip Department,
28 ... Blade line, G ... Ground line, A ... Blade line extending direction, B ... Ground line extending direction.
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）を研削により設け、 この両採取刃体（１３，１４）の刃先部（２７）のうち
少なくとも一方のものにあっては、その刃線（２８）の
延設方向（Ａ）に対し研削目（Ｇ）の延設方向（Ｂ）を
交差させ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 two collection blades (13, 14) are provided so as to be openable and closable via a mechanism (12), and blade edges (27) that come into contact with and separate from each other when they are opened and closed are provided by grinding. In at least one of the cutting edge portions (27) of (13, 14), the extending direction (B) of the grinding stitch (G) is set to the extending direction (A) of the blade line (28). A structure of a sampling blade in a treatment tool for an endoscope, which is characterized by intersecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07043254A JP3074122B2 (en) | 1995-03-02 | 1995-03-02 | Sampling blade structure for treatment tools for endoscopes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07043254A JP3074122B2 (en) | 1995-03-02 | 1995-03-02 | Sampling blade structure for treatment tools for endoscopes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08238246A true JPH08238246A (en) | 1996-09-17 |
| JP3074122B2 JP3074122B2 (en) | 2000-08-07 |
Family
ID=12658740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07043254A Expired - Fee Related JP3074122B2 (en) | 1995-03-02 | 1995-03-02 | Sampling blade structure for treatment tools for endoscopes |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3074122B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016049173A (en) * | 2014-08-29 | 2016-04-11 | マニー株式会社 | Medical suture needle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4923393A (en) * | 1972-06-30 | 1974-03-01 | ||
| JPS6426017U (en) * | 1987-08-04 | 1989-02-14 |
-
1995
- 1995-03-02 JP JP07043254A patent/JP3074122B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4923393A (en) * | 1972-06-30 | 1974-03-01 | ||
| JPS6426017U (en) * | 1987-08-04 | 1989-02-14 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016049173A (en) * | 2014-08-29 | 2016-04-11 | マニー株式会社 | Medical suture needle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3074122B2 (en) | 2000-08-07 |
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