JPH0610961Y2 - High frequency incision tool - Google Patents
High frequency incision toolInfo
- Publication number
- JPH0610961Y2 JPH0610961Y2 JP1988052815U JP5281588U JPH0610961Y2 JP H0610961 Y2 JPH0610961 Y2 JP H0610961Y2 JP 1988052815 U JP1988052815 U JP 1988052815U JP 5281588 U JP5281588 U JP 5281588U JP H0610961 Y2 JPH0610961 Y2 JP H0610961Y2
- Authority
- JP
- Japan
- Prior art keywords
- passage
- flexible sheath
- treatment
- cross
- sectional shape
- 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］ 本考案は内視鏡の挿通チャンネルを通じて導入し、生体
組織の切開等の処置を行なう高周波切開具に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a high-frequency incision instrument that is introduced through an insertion channel of an endoscope and performs treatment such as incision of living tissue.
［従来の技術］ たとえば十二指腸乳頭部を切開するための高周波切開具
が知られている。従来、実公昭５８−８９０１１号公報
や実開昭５８−１５２９１２号公報で知られている高周
波切開具は電気的絶縁性の可撓性シース内に導電性ワイ
ヤを挿通してなり、そのワイヤの先端部付近の途中を可
撓性シースの側壁に開口した一対の側孔を通じて外へ露
出し、この露出部分により高周波切開部を構成してい
る。[Prior Art] For example, a high-frequency incision tool for incising the duodenal papilla is known. Conventionally, the high-frequency incision devices known in Japanese Utility Model Publication No. 58-89011 and Japanese Utility Model Publication No. 58-152912 are made by inserting a conductive wire into an electrically insulating flexible sheath. A part of the vicinity of the tip portion is exposed to the outside through a pair of side holes opened in the side wall of the flexible sheath, and the exposed portion constitutes a high-frequency incision portion.
また、この高周波切開具はそのシース内を利用して他の
処置にも使用する。たとえば、この可撓性シースは膵胆
管へ造影剤を注入するためにも使用する。つまり、内視
鏡による観察下で可撓性シースの先端を膵管または胆管
に差し込み、造影剤を注入するものである。The high-frequency incision device is also used for other treatments by utilizing the inside of the sheath. For example, the flexible sheath is also used to inject a contrast agent into the pancreaticobiliary duct. That is, the tip of the flexible sheath is inserted into the pancreatic duct or the bile duct under observation with an endoscope and a contrast agent is injected.
［考案が解決しようとする課題］ しかしながら、この高周波切開具を他の処置、膵胆管へ
造影剤を注入するためにも使用すると、その造影剤が導
電性ワイヤに付着し、その導電性ワイヤの進退動作を損
なわせたり、切除能力を劣化させたりする不都合が生じ
る。さらに、上記各側孔から造影剤が漏れ出し、膵胆管
以外の箇所に漏れ、確実に注入できなかったり、造影効
果を損ったりすることがあった。[Problems to be solved by the invention] However, when this high-frequency dissection instrument is used for other treatments, such as injecting a contrast agent into the pancreaticobiliary duct, the contrast agent adheres to the conductive wire and There are inconveniences such as impairing the forward / backward movement and deteriorating the cutting ability. Further, the contrast agent may leak from each of the side holes and leak to a portion other than the pancreaticobiliary duct, which may prevent reliable injection or impair the contrast effect.
また、使用後、可撓性シース内の造影剤を洗い落とす洗
浄時において、導電性ワイヤが邪魔になり、洗浄作業性
を悪くしていた。In addition, after the use, the conductive wire is an obstacle during the cleaning for washing away the contrast agent in the flexible sheath, which deteriorates the cleaning workability.
本考案は上記課題に着目してなされたもので、その目的
とするところは１つの可撓性シースを利用して複数の処
置を独立して互いに阻害し合うこなく処置することがで
きるとともに、その可撓性シースの細径化および可撓性
を確保して可撓性シースを有効に利用して複数の処置を
行なうことができ、さらに、可撓性シースの湾曲指向性
が付与されることによる処置具の操作が容易な高周波切
開具を提供することにある。The present invention has been made in view of the above-mentioned problems, and the purpose thereof is to be able to perform a plurality of treatments independently by using one flexible sheath without interfering with each other. A plurality of treatments can be performed by effectively utilizing the flexible sheath by ensuring the thinning and flexibility of the flexible sheath, and further, the bending directivity of the flexible sheath is imparted. An object of the present invention is to provide a high-frequency incision tool which facilitates the operation of the treatment tool.
［課題を解決するための手段および作用］ 上記課題を解決するために本考案の高周波切開具は、可
撓性シース内に、２つの処置具用通路を形成し、一方の
処置用通路の断面形状を円形にし、この一方の通路にワ
イヤを挿通し、他方の処置用通路の断面形状を三ケ月状
に形成し、前記円形の処置用通路は他方の処置用通路の
断面形状の三ケ月の欠けた側に位置するようにしたもの
である。そして、断面形状が円形の処置用通路を利用し
てワイヤを挿通し、他方の断面形状が三ケ月状の処置用
通路を利用して例えば造影剤を供給する。この場合、各
処置用通路が隔離されているので、各作用が干渉しな
い。また、ワイヤを通す通路側に他方の通路を利用して
供給する例えば造影剤が漏れ入ることがない。[Means and Actions for Solving the Problems] In order to solve the above problems, the high-frequency incision device of the present invention forms two treatment instrument passages in a flexible sheath, and a cross section of one treatment passage. The shape is made circular, a wire is inserted through this one passage, the cross-sectional shape of the other treatment passage is formed into a crescent shape, and the circular treatment passage has three months of the cross-sectional shape of the other treatment passage. It is located on the side. Then, the wire is inserted using the treatment passage having a circular cross-sectional shape, and, for example, a contrast agent is supplied using the treatment passage having a crescent-shaped cross-section. In this case, since each treatment passage is isolated, each action does not interfere. Further, for example, a contrast agent supplied using the other passage will not leak into the passage side through which the wire passes.
さらに、断面形状が円形の処置用通路は、断面形状が三
ケ月の処置用通路に対してその断面形状の三ケ月の欠け
た側に位置するから、可撓性シースは三ケ月の欠けた側
へ曲り易くその向きへの湾曲安定性がよい。また、同じ
理由で、可撓性シースを極力細くできる一方、通路の断
面積を確保できる。また、可撓性シースの壁の厚さを極
力薄くできるため、その可撓性シースの可撓性を高める
ことができる。Furthermore, since the treatment passage having a circular cross-sectional shape is located on the side where the cross-sectional shape of the crescent is missing for the treatment passage having the cross-section of three months, the flexible sheath is easily bent to the lacking side of the crescent. Good bending stability in that direction. For the same reason, the flexible sheath can be made as thin as possible while ensuring the cross-sectional area of the passage. Moreover, since the wall thickness of the flexible sheath can be made as thin as possible, the flexibility of the flexible sheath can be enhanced.
さらに、ワイヤを通す通路の断面形状が円形であるか
ら、その通路内面とワイヤとのクリアランスを適当な大
きさに設定することにより、ワイヤの操作性が向上す
る。そして、断面形状が円形の処置用通路に合わせて断
面形状が三ケ月形状の通路をより大きなものとして作る
ことができ、液体等の供給能力を向上できる。Further, since the cross-sectional shape of the passage through which the wire passes is circular, the operability of the wire is improved by setting the clearance between the inner surface of the passage and the wire to an appropriate size. Then, a passage having a crescent-shaped cross section can be made larger in accordance with the treatment passage having a circular cross-sectional shape, and the supply capability of liquid or the like can be improved.
［実施例］ 図面は本考案の一実施例を示すものである。[Embodiment] The drawings show an embodiment of the present invention.
図中１は電気的絶縁性の材料から形成した可撓性シース
である。この可撓性シース１は図示しない内視鏡の挿通
チャンネルに挿通して体腔内に導入できるようになって
いる。この可撓性シース１にはその長手方向に沿う２つ
の通路２，３を形成してある。つまり、この可撓性シー
ス１を形成する単一の可撓性部材自体に上記各通路２，
３を分離独立して形成し、その一方の通路２は第３図で
示すように断面形状が円形に形成され、もう一方の通路
３は上記通路２より大きな三ケ月状の断面形状に形成さ
れている。In the figure, 1 is a flexible sheath formed of an electrically insulating material. This flexible sheath 1 can be inserted into an insertion channel of an endoscope (not shown) and introduced into the body cavity. The flexible sheath 1 is formed with two passages 2 and 3 along its longitudinal direction. That is, each of the passages 2, 2 is formed in the single flexible member itself forming the flexible sheath 1.
3 are formed independently of each other, one of the passages 2 is formed to have a circular sectional shape as shown in FIG. 3, and the other passage 3 is formed to have a crescent-shaped sectional shape larger than the passage 2. There is.
可撓性シース１の先端部にはその小さい方の通路２に通
じる一対の側孔４，５が、前後にずれて開口されてい
る。そして，第１図で示すように、その側孔４，５には
高周波切開用の導電性ワイヤ６の先端部が挿通され、こ
の先端部の途中部分が可撓性シース１の外部に露出し、
これにより高周波切開部７を構成している。導電性ワイ
ヤ６の先端は可撓性シース１の小さい方の通路２の先端
部内に取付け固定された止め部材８に対して取着固定さ
れている。A pair of side holes 4 and 5 communicating with the smaller passage 2 are opened at the distal end of the flexible sheath 1 so as to be displaced in the front-rear direction. Then, as shown in FIG. 1, the tip of the conductive wire 6 for high-frequency incision is inserted into the side holes 4 and 5, and the middle part of the tip is exposed to the outside of the flexible sheath 1. ,
This constitutes the high-frequency incision section 7. The tip of the conductive wire 6 is attached and fixed to a stopper member 8 which is attached and fixed in the tip of the smaller passage 2 of the flexible sheath 1.
また、第２図で示すように、導電性ワイヤ６の基端側は
上記通路２を通じて可撓性シース１の手元側に導かれ
る。そして、可撓性シース１の手元側端部に連結された
操作部本体１０に導かれるとともに、図示しない操作用
スライダに連結されている。そして、導電性ワイヤ６は
その操作用スライダにより進退操作されるようになって
いる。Further, as shown in FIG. 2, the proximal end side of the conductive wire 6 is guided to the proximal side of the flexible sheath 1 through the passage 2. Then, the flexible sheath 1 is guided to the operation portion main body 10 connected to the proximal end portion of the flexible sheath 1 and is also connected to an operation slider (not shown). The conductive wire 6 is moved back and forth by the operating slider.
他方の通路３は可撓性シース１の先端で開口し、また、
基端側は操作部本体１０に設けた口部材１１に対し、チ
ューブ１２を介して接続されている。つまり、他方の通
路３は操作部本体１０の口部材１１からなる口部１３に
連通している。The other passage 3 opens at the tip of the flexible sheath 1, and
The base end side is connected to a mouth member 11 provided in the operation portion main body 10 via a tube 12. That is, the other passage 3 communicates with the mouth portion 13 formed of the mouth member 11 of the operation portion main body 10.
しかして、上記内視鏡用処置具を用いて十二指腸乳頭部
の狭窄部分を切開する場合には次のようにして行なう。
すなわち、あらかじめ体腔内に導き入れた内視鏡の挿通
チャンネルを通じてその可撓性シース１の先端を十二指
腸乳頭部の狭窄部分に導き入れる。さらに、内視鏡によ
る観察下でその可撓性シース１の先端を乳頭部から胆管
または膵管内へ挿入する。この場合、可撓性シース１に
形成した一方の通路３はその断面形状を三ケ月状に形成
したから、可撓性シース１は曲り易い方向が決まる。し
たがって、その向きを考慮して容易に挿入することがで
きる。Then, when the stricture part of the duodenal papilla is incised using the above endoscopic treatment tool, it is performed as follows.
That is, the distal end of the flexible sheath 1 is introduced into the narrowed portion of the duodenal papilla through the insertion channel of the endoscope which is previously introduced into the body cavity. Further, the tip of the flexible sheath 1 is inserted into the bile duct or pancreatic duct from the papilla under observation with an endoscope. In this case, since the one passage 3 formed in the flexible sheath 1 has a crescent-shaped cross-section, the flexible sheath 1 is determined to bend easily. Therefore, it can be easily inserted in consideration of its orientation.
ついで、操作部本体１０の口部１３に注射器等を接続し
て上記通路３に造影剤を供給し、上記胆管または膵管内
へ造影剤を注入する。この通路３は導電性ワイヤ６を通
す他方の通路２とは完全に分離しているので、この注入
時にその通路２側に造影剤が流れ込むことはない。ま
た、この造影剤を供給するために利用する通路３は他の
通路２より大きな三ケ月状の断面形状に形成されている
ため、そのときの送液抵抗が小さく、しかも、その送液
量が充分に確保され、造影剤を確実に供給できる。Then, a syringe or the like is connected to the mouth portion 13 of the operation portion main body 10 to supply the contrast agent to the passage 3 and inject the contrast agent into the bile duct or the pancreatic duct. Since this passage 3 is completely separated from the other passage 2 through which the conductive wire 6 is passed, the contrast agent does not flow into the passage 2 side during this injection. Further, since the passage 3 used for supplying the contrast medium is formed in a crescent-shaped cross section larger than the other passages 2, the liquid feeding resistance at that time is small, and the liquid feeding amount is sufficient. Therefore, the contrast agent can be reliably supplied.
さらに、造影剤を供給する通路３は導電性ワイヤ６を通
す通路２側と完全に分離しているので、導電性ワイヤ６
側の通路２に造影剤が漏れ出したりすることがない。し
たがって、造影剤を確実に供給できるとともに、その導
電性ワイヤ６の進退動作を阻害したり、高周波切開作用
を損ったりすることがない。Furthermore, since the passage 3 for supplying the contrast agent is completely separated from the passage 2 side through which the conductive wire 6 is passed, the conductive wire 6
The contrast agent does not leak to the side passage 2. Therefore, the contrast agent can be reliably supplied, and the forward / backward movement of the conductive wire 6 is not hindered and the high-frequency incision action is not impaired.
そこで、造影剤を注入した胆管または膵管の走行位置の
状態をＸ線で確認し、その可撓性シース１の先端を差し
込む。そして、導電性ワイヤ６を押し込むことにより高
周波切開部７を突き出し、十二指腸乳頭部の狭窄部分を
高周波切開するのである。Therefore, the state of the running position of the bile duct or pancreatic duct into which the contrast agent has been injected is confirmed by X-ray, and the tip of the flexible sheath 1 is inserted. Then, the high-frequency incision 7 is pushed out by pushing the conductive wire 6, and the high-frequency incision is made in the narrowed portion of the duodenal papilla.
以上説明したように、本考案の高周波切開具は、可撓性
シース内に、２つの処置具用通路を形成し、一方の処置
用通路の断面形状を円形にし、この一方の通路にワイヤ
を挿通し、他方の処置用通路の断面形状を三ケ月状に形
成し、前記円形の処置用通路は他方の処置用通路の断面
形状の三ケ月の欠けた側に位置するようにしたものであ
り、そして、断面形状が円形の処置用通路を利用してワ
イヤを挿通し、他方の断面形状が三ケ月状の処置用通路
を利用して例えば造影剤を供給するが、この場合、各処
置用通路が隔離されているので、各作用が干渉しない。
また、ワイヤを通す通路側に他方の通路を利用して供給
する例えば造影剤が漏れ入ることがない。As described above, the high-frequency incision device of the present invention forms two treatment instrument passages in the flexible sheath, makes one of the treatment passages have a circular cross-sectional shape, and inserts the wire into the one passage. The other treatment passage is formed into a crescent-shaped cross-section, and the circular treatment passage is located on the side of the other treatment passage where the cross-section is crescent-shaped, and , A wire is inserted using a treatment passage having a circular cross-sectional shape, and a contrast agent is supplied using a treatment passage having a crescent-shaped cross-sectional shape on the other side. In this case, each treatment passage is isolated. Therefore, each action does not interfere.
Further, for example, a contrast agent supplied using the other passage will not leak into the passage side through which the wire passes.
さらに、断面形状が円形の処置用通路は、断面形状が三
ケ月の処置用通路に対してその断面形状の三ケ月の欠け
た側に位置するから、可撓性シースは三ケ月の欠けた側
へ曲り易くその向きへの湾曲安定性がよい。また、同じ
理由で、可撓性シースを極力細くできる一方、通路の断
面積を確保できる。また、可撓性シースの壁の厚さを極
力薄くできるため、その可撓性シースの可撓性を高める
ことができる。Furthermore, since the treatment passage having a circular cross-sectional shape is located on the side where the cross-sectional shape of the crescent is missing for the treatment passage having the cross-section of three months, the flexible sheath is easily bent to the lacking side of the crescent. Good bending stability in that direction. For the same reason, the flexible sheath can be made as thin as possible while ensuring the cross-sectional area of the passage. Moreover, since the wall thickness of the flexible sheath can be made as thin as possible, the flexibility of the flexible sheath can be enhanced.
さらに、ワイヤを通す通路の断面形状が円形であるか
ら、その通路内面とワイヤとのクリアランスを適当な大
きさに設定することにより、ワイヤの操作性が向上す
る。そして、断面形状が円形の処置用通路に合わせて断
面形状が三ケ月形状の通路をより大きなものとして作る
ことができ、液体等の供給能力を向上できる。Further, since the cross-sectional shape of the passage through which the wire passes is circular, the operability of the wire is improved by setting the clearance between the inner surface of the passage and the wire to an appropriate size. Then, a passage having a crescent-shaped cross section can be made larger in accordance with the treatment passage having a circular cross-sectional shape, and the supply capability of liquid or the like can be improved.
第１図は本考案の一実施例における内視鏡用処置具の先
端部分の側断面図、第２図は同じくその手元側部分の側
断面図、第３図は第１図中Ａ−Ａ線に沿う断面図、第４
図は第３図中Ｂ−Ｂ線に沿う断面図である。 １……可撓性シース、２，３……通路、６……導電性ワ
イヤ。FIG. 1 is a side sectional view of a distal end portion of a treatment instrument for an endoscope according to an embodiment of the present invention, FIG. 2 is a side sectional view of a proximal side portion thereof, and FIG. 3 is AA in FIG. Sectional view along line, 4th
The drawing is a sectional view taken along the line BB in FIG. 1 ... Flexible sheath, 2, 3 ... Passage, 6 ... Conductive wire.
Claims (1)
形成し、一方の処置用通路の断面形状を円形にし、この
通路にワイヤを挿通し、他方の処置用通路の断面形状を
三ケ月状に形成し、前記円形の処置用通路は前記三ケ月
形状の欠けた側に位置することを特徴とする高周波切開
具。1. A flexible sheath having two treatment device passages formed therein, one of the treatment passages having a circular cross-sectional shape, a wire inserted through the passage, and the other treatment passage having a cross-sectional shape. Is formed in a crescent shape, and the circular treatment passage is located on the side where the crescent shape is cut off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988052815U JPH0610961Y2 (en) | 1988-04-21 | 1988-04-21 | High frequency incision tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988052815U JPH0610961Y2 (en) | 1988-04-21 | 1988-04-21 | High frequency incision tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63163803U JPS63163803U (en) | 1988-10-26 |
| JPH0610961Y2 true JPH0610961Y2 (en) | 1994-03-23 |
Family
ID=30878321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988052815U Expired - Lifetime JPH0610961Y2 (en) | 1988-04-21 | 1988-04-21 | High frequency incision tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0610961Y2 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5062987U (en) * | 1973-10-03 | 1975-06-09 | ||
| JPS5062988U (en) * | 1973-10-03 | 1975-06-09 | ||
| US4149538A (en) * | 1977-08-15 | 1979-04-17 | American Hospital Supply Corporation | Resectoscope electrode assembly with non-conductive bearing tube and method of making the same |
| JPS58152912U (en) * | 1982-04-06 | 1983-10-13 | 株式会社メドス研究所 | High frequency dissector for endoscope |
-
1988
- 1988-04-21 JP JP1988052815U patent/JPH0610961Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63163803U (en) | 1988-10-26 |
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