JPH0556969B2 - - Google Patents
Info
- Publication number
- JPH0556969B2 JPH0556969B2 JP59209455A JP20945584A JPH0556969B2 JP H0556969 B2 JPH0556969 B2 JP H0556969B2 JP 59209455 A JP59209455 A JP 59209455A JP 20945584 A JP20945584 A JP 20945584A JP H0556969 B2 JPH0556969 B2 JP H0556969B2
- Authority
- JP
- Japan
- Prior art keywords
- slit
- forceps plug
- forceps
- insertion port
- 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.)
- Expired - Lifetime
Links
- 238000003780 insertion Methods 0.000 claims description 23
- 230000037431 insertion Effects 0.000 claims description 23
- 238000011282 treatment Methods 0.000 claims description 11
- 230000000694 effects Effects 0.000 description 6
- 238000007789 sealing Methods 0.000 description 4
- 102100027340 Slit homolog 2 protein Human genes 0.000 description 3
- 101710133576 Slit homolog 2 protein Proteins 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000013013 elastic material Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000008155 medical solution Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 230000008674 spewing Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Landscapes
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Endoscopes (AREA)
Description
【発明の詳細な説明】
［発明の技術分野］
本発明は、処置具挿入用チヤンネルの挿入口を
閉塞するための内視鏡用鉗子栓に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an endoscope forceps plug for closing an insertion opening of a channel for inserting a treatment instrument.
［発明の技術的背景とその問題点］
一般に内視鏡を用いた医療検査および手術等に
おいては、内視鏡を通して患者の体内に薬液を注
入したり、病変部位を切除、採取するといつた
種々の処置を行つている。このため、内視鏡には
上記処置をするための処置具を挿通する鉗子チヤ
ンネルが設けられているが、体腔内圧の変化によ
つて体腔内の空気や汚物が鉗子チヤンネルを通つ
て外部へ洩れ出すことがある。このため、鉗子挿
入口に特開昭59−55502号公報に開示されるよう
な鉗子栓を設けて、空気や汚物の洩出を防止して
いる。この鉗子栓はゴムなどの弾性材料で作ら
れ、処置具を挿通するためのスリツトが設けられ
ている。このスリツトは通常気密に閉じていて、
処置具を押し当てることによつて開き、処置具を
チヤンネル内に通することができる。[Technical Background of the Invention and Problems Therein] Generally, in medical examinations and surgeries using endoscopes, there are various procedures such as injecting medical solutions into the patient's body through the endoscope, and cutting and collecting diseased parts. We are taking the following measures. For this reason, endoscopes are equipped with a forceps channel through which the treatment tools for performing the above treatments are inserted, but due to changes in the pressure inside the body cavity, air and dirt inside the body cavity leak through the forceps channel to the outside. Sometimes it comes out. For this reason, a forceps plug as disclosed in Japanese Unexamined Patent Publication No. 59-55502 is provided in the forceps insertion port to prevent air and dirt from leaking out. This forceps plug is made of an elastic material such as rubber, and is provided with a slit through which a treatment tool is inserted. This slit is usually closed airtight,
It can be opened by pressing the treatment instrument against it, and the treatment instrument can be passed into the channel.
そして、第６図に見られる従来例の上記鉗子栓
１のスリツト２の装着前の幅は、鉗子栓１の上面
３と下面４において同一である。また、嵌合部５
の内径は鉗子挿入口６の外径より小さくて装着性
を良くしている為、鉗子挿入口６に装着した場
合、鉗子栓１の下面４側に矢印の方向に引張力を
受け、第６図に示されるように下面４側のスリツ
ト２の幅が広がつてしまい、スリツト２の密封効
果が損われしまつた。従つて、スリツトから汚物
のが噴出し、術者にかかるという問題があつた。 The width of the conventional forceps plug 1 shown in FIG. 6 before the slit 2 is attached is the same on the upper surface 3 and the lower surface 4 of the forceps plug 1. In addition, the fitting part 5
The inner diameter of the forceps plug 1 is smaller than the outer diameter of the forceps insertion port 6, making it easy to install. As shown in the figure, the width of the slit 2 on the lower surface 4 side has increased, and the sealing effect of the slit 2 has been impaired. Therefore, there was a problem in that filth spewed out from the slit and fell on the operator.
［発明の目的］
本発明は、汚物の噴出しを防止できる内視鏡用
鉗子栓を提供することを目的とする。[Object of the Invention] An object of the present invention is to provide a forceps plug for an endoscope that can prevent the ejection of filth.
［発明の概要］
内視鏡用鉗子栓に設けたスリツトの鉗子栓下面
側の幅を上面側の幅より狭くして、汚物等の噴出
物を防止できるものである。[Summary of the Invention] The width of the slit provided on the forceps plug for an endoscope on the lower surface side of the forceps plug is made narrower than the width on the upper surface side, thereby making it possible to prevent ejected materials such as filth.
［発明の実施例］
以下に本発明の一実施例を第１図から第３図に
基づいて説明する。第２図は内視鏡全体を示す図
で、内視鏡本体１０は操作部１２と挿入部１４と
からなり、操作部１２には、ライトガイド等を挿
通するユニバーサルコード１６が連結され、その
先端は図示しない光源に接続される。また、挿入
部１４の先端には弯曲部１８を介して先端構成部
２０が連結してなり、上記弯曲部１８は操作部１
２に設けた図示しないアングル操作ノブにより遠
隔的に弯曲操作ができるようになつている。ま
た、上記操作部１２には送気・送水切換装置２２
と吸引切換装置２４が設けられ、先端構成部２０
より送気・送水及び吸引ができる。さらに、操作
部１２には、鉗子等の処置具２６を挿入するため
の処置具挿入口２８をもつ挿入口体３０が設けら
れ、この挿入口体３０には挿入部１４、弯曲部１
６の内部を通つて先端構成部２０の先端に一端が
開口するチヤンネル３２の他端が接続されてい
る。尚、挿入口体３０には挿入口２８を閉塞する
鉗子栓３４が設けられている。[Embodiment of the Invention] An embodiment of the present invention will be described below based on FIGS. 1 to 3. FIG. 2 is a diagram showing the entire endoscope. The endoscope main body 10 consists of an operating section 12 and an insertion section 14. A universal cord 16 through which a light guide or the like is inserted is connected to the operating section 12. The tip is connected to a light source (not shown). Further, a distal end component 20 is connected to the distal end of the insertion section 14 via a curved section 18, and the curved section 18 is connected to the operating section 1.
An angle operation knob (not shown) provided at 2 allows remote bending operation. In addition, the operation section 12 includes an air supply/water supply switching device 22.
and a suction switching device 24 are provided, and the tip component 20
Air/water supply and suction are possible. Further, the operation section 12 is provided with an insertion port body 30 having a treatment instrument insertion port 28 for inserting a treatment instrument 26 such as forceps, and this insertion port body 30 includes the insertion section 14 and the curved section 1.
The other end of a channel 32, one end of which is open, is connected to the distal end of the distal end component 20 through the interior of the channel 6. Note that the insertion port body 30 is provided with a forceps plug 34 that closes the insertion port 28.
次に第１図は、鉗子栓３４の断面図、第３図
は、挿入口体３０に鉗子栓３４を取り付けたとき
の断面図である。鉗子栓３４は、シリコンゴム、
フツ素ゴム、ニトリルブチルゴム等の弾性材料で
作られており、その形状は略円筒状で上面は球面
状の凹面３６があり、下面には挿入口体３０と嵌
合自在な嵌合部３８が設けられている。さらに鉗
子栓３４の中央部にはスリツト４０が設けられて
いる。このスリツト４０は極薄の刃物等であけら
れ、通常は極薄の為及び鉗子栓３４の弾性力によ
つて密着状態を保つている。また、鉗子栓３４を
挿入口体３０に取り付けない状態では、凹面３６
側（上面）のスリツト幅1と嵌合部３８側（下
面）のスリツト幅2との幅の長さの関係は1＞
2となつていて、挿入口体３０に取り付けると、
1≒2になるようになつている。さらに、鉗子
栓３４の嵌合部３８には内径L1の溝部４２と内
径L2のフランジ部４４があり、挿入口体３０に
設けられた外径L1′のフランジ部４６と外径L2′
の溝部４８とそれぞれが嵌合するようになつてい
る。この場合、鉗子栓３４に設けられた溝部４２
のL1とフランジ部４４のL2と、挿入口体３０に
設けられたフランジ部４６のL1′と溝部４８の
L2′との径の関係は、L1＜1′，L2＜2′となつてい
る。 Next, FIG. 1 is a cross-sectional view of the forceps plug 34, and FIG. 3 is a cross-sectional view when the forceps plug 34 is attached to the insertion port body 30. The forceps plug 34 is made of silicone rubber,
It is made of an elastic material such as fluorine rubber or nitrile butyl rubber, and has a substantially cylindrical shape with a spherical concave surface 36 on the upper surface, and a fitting part 38 that can freely fit with the insertion opening body 30 on the lower surface. It is provided. Furthermore, a slit 40 is provided in the center of the forceps plug 34. This slit 40 is made with an extremely thin knife or the like, and is normally kept in close contact due to its extremely thin shape and the elastic force of the forceps plug 34. In addition, when the forceps plug 34 is not attached to the insertion port body 30, the concave surface 36
The relationship between the slit width 1 on the side (top surface) and the slit width 2 on the fitting part 38 side (bottom surface) is 1 >
2 , and when attached to the insertion port body 30,
1 ≒ 2 . Further, the fitting portion 38 of the forceps plug 34 has a groove portion 42 with an inner diameter L 1 and a flange portion 44 with an inner diameter L 2 , and a flange portion 46 with an outer diameter L 1 ′ provided on the insertion port body 30 and a flange portion 46 with an outer diameter L 2 ′
These grooves 48 are adapted to fit into each other. In this case, the groove 42 provided in the forceps plug 34
L 1 of the flange portion 44 , L 1 ′ of the flange portion 46 provided on the insertion port body 30 and the groove portion 48 .
The relationship between the diameter and L 2 ′ is L 1 < 1 ′, L 2 < 2 ′.
次に上記構成による作用を述べる。まづ、鉗子
栓３４を内視鏡１０の挿入口体３０に装着する。
鉗子栓３４の嵌合部３８の内径L1，L2と挿入口
体３０の外径L1′，L2′の関係はL1＜1′，L2＜2′で
あるため、鉗子栓３４は第３図の矢印に示すスリ
ツトを広げるような引張力を嵌合部３８の部分を
受ける。そのため、鉗子栓３４のスリツト４０の
嵌合部側（下面）のスリツト幅2は引張られて、
凹面側（上面）のスリツト幅1とほぼ同じ長さ
となる。 Next, the effects of the above configuration will be described. First, the forceps plug 34 is attached to the insertion port body 30 of the endoscope 10.
Since the relationship between the inner diameters L 1 and L 2 of the fitting portion 38 of the forceps plug 34 and the outer diameters L 1 ′ and L 2 ′ of the insertion port body 30 is L 1 < 1 ′ and L 2 < 2 ′, the forceps plug 34 34 receives a tensile force at the fitting portion 38 to widen the slit shown by the arrow in FIG. Therefore, the slit width 2 on the fitting part side (lower surface) of the slit 40 of the forceps plug 34 is stretched.
The length is approximately the same as the slit width 1 on the concave side (top side).
上述のように、鉗子栓３４に設けられたスリツ
ト４０の凹面側（上面）のスリツト幅1に対し
て、嵌合部側（下面）のスリツト幅2を狭くし
たことにより、鉗子栓３４を挿入口体３０に取り
付けた時、スリツト幅1と2の長さが1≒2
となり、スリツト４０に対する引張力による密封
効果の低下を抑えることができる。そのため、ス
リツト４０から汚物等が噴出して、術者にかかる
ことを防止できる。 As described above, the forceps plug 34 can be inserted by making the slit width 2 on the fitting side (lower surface) narrower than the slit width 1 on the concave side (upper surface) of the slit 40 provided in the forceps plug 34. When attached to the mouth body 30, the length of slit widths 1 and 2 is 1 ≒ 2
Therefore, the deterioration of the sealing effect due to the tensile force on the slit 40 can be suppressed. Therefore, it is possible to prevent dirt and the like from spewing out from the slit 40 and hitting the operator.
尚、スリツト幅1＜2の比は鉗子栓３４の形
状・硬度及び挿入口体３０の形状によつて変わ
る。 Note that the ratio of slit width 1 < 2 varies depending on the shape and hardness of the forceps plug 34 and the shape of the insertion port body 30.
次に第４図、第５図は本発明の他の実施例を示
す図である。尚、前記実施例と同一の部分には同
一の符号を付して説明を省略する。鉗子栓５０に
設けられたスリツト５２の形状は、第４図に示す
ように、鉗子栓５０の凹面３６側（上面）では
１の幅があるが、嵌合部３８側（下面）に行くに
従つてその幅は徐々に狭くなり、嵌合部３８側
（下面）でピンポール５４となる。 Next, FIGS. 4 and 5 are diagrams showing other embodiments of the present invention. Incidentally, the same parts as in the above embodiment are given the same reference numerals, and the explanation thereof will be omitted. The shape of the slit 52 provided in the forceps plug 50 is as shown in FIG.
1 , but the width gradually becomes narrower toward the fitting portion 38 side (lower surface), and becomes a pin pole 54 on the fitting portion 38 side (lower surface).
次々上記構成に上る作用を述べると、鉗子栓５
０を挿入体３０に装着すると、第５図の矢印に示
すような引張力を受ける。しかし、スリツト５２
の形状は、ピンポール５４のため変形しない。そ
のため、鉗子栓５０の密封効果を損うことがな
く、汚物等の噴出を抑えることができる。 To describe the functions of the above configuration one after another, the forceps plug 5
When the 0 is attached to the insert 30, it is subjected to a tensile force as shown by the arrow in FIG. However, slit 52
The shape of is not deformed because of the pin pole 54. Therefore, the sealing effect of the forceps plug 50 is not impaired, and squirting of dirt and the like can be suppressed.
［発明の効果］
以上述べたように、本発明の鉗子栓ではスリツ
トの幅を鉗子栓の上面より下面側を狭くしたこと
により、鉗子栓を内視鏡本体の挿入口体に装着し
ても、スリツトの変形を少なくして密封効果の低
下がなくなり、汚物等が噴出して術者にかかるこ
とがない。[Effects of the Invention] As described above, in the forceps plug of the present invention, the width of the slit is narrower on the lower surface side than on the upper surface of the forceps plug, so that even when the forceps plug is attached to the insertion port body of the endoscope body, , the deformation of the slit is reduced, the sealing effect is not deteriorated, and dirt, etc. does not spout out and fall on the operator.
第１図は、本発明の一実施例を示すスリツトの
そつた断面図、第２図は、本発明の鉗子栓を内視
鏡に装着した全体図、第３図は、一実施例の鉗子
栓を挿入口体に装着した断面図、第４図は、本発
明の他の実施例を示す断面図、第５図は、他の実
施例の鉗子栓を挿入口体に装着した断面図、第６
図は、従来技術を示す図である。
３４，５０……鉗子栓、４０，５２……スリツ
ト、５０……ピンホール。
FIG. 1 is a cross-sectional view with a slit showing one embodiment of the present invention, FIG. 2 is an overall view of the forceps plug of the present invention attached to an endoscope, and FIG. 3 is a view of the forceps of one embodiment. FIG. 4 is a sectional view showing another embodiment of the present invention; FIG. 5 is a sectional view of another embodiment of the forceps plug attached to the insertion port body; 6th
The figure is a diagram showing a conventional technique. 34,50...forceps plug, 40,52...slit, 50...pinhole.
Claims (1)
視鏡に設けられ、上記処置具挿通用チヤンネルの
挿入口を閉塞し、着脱自在に装着可能で、処置具
挿通用のスリツトを有する弾性体よりなる鉗子栓
において、上記スリツトの幅は鉗子栓下面側を鉗
子栓上面側よりも狭くしたことを特徴とする内視
鏡用鉗子栓。1. An elastic body that is provided on an endoscope having a channel for inserting a treatment instrument such as forceps, closes the insertion opening of the channel for inserting the treatment instrument, is removably attachable, and has a slit for inserting the treatment instrument. A forceps plug for an endoscope, characterized in that the width of the slit is narrower on the lower surface side of the forceps plug than on the upper surface side of the forceps plug.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59209455A JPS61131723A (en) | 1984-10-05 | 1984-10-05 | Forcept cock for endoscope |
| US06/773,122 US4653477A (en) | 1984-09-13 | 1985-09-06 | Endoscope forceps stopcock |
| DE3532560A DE3532560C2 (en) | 1984-09-13 | 1985-09-12 | Closure device for the mouthpiece of an endoscope |
| US07/001,157 US4715360A (en) | 1984-09-13 | 1987-01-07 | Endoscope forceps stopcock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59209455A JPS61131723A (en) | 1984-10-05 | 1984-10-05 | Forcept cock for endoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61131723A JPS61131723A (en) | 1986-06-19 |
| JPH0556969B2 true JPH0556969B2 (en) | 1993-08-20 |
Family
ID=16573155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59209455A Granted JPS61131723A (en) | 1984-09-13 | 1984-10-05 | Forcept cock for endoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61131723A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4809679A (en) * | 1986-11-19 | 1989-03-07 | Olympus Optical Co., Ltd. | Forceps plug for endoscopes |
| JP4904194B2 (en) * | 2007-05-08 | 2012-03-28 | Ｈｏｙａ株式会社 | Endoscope forceps plug |
| JP6067567B2 (en) * | 2011-09-28 | 2017-01-25 | テルモ株式会社 | Catheter assembly |
-
1984
- 1984-10-05 JP JP59209455A patent/JPS61131723A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61131723A (en) | 1986-06-19 |
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