JPS63130038A - Forcept plug for endoscope - Google Patents
Forcept plug for endoscopeInfo
- Publication number
- JPS63130038A JPS63130038A JP61277672A JP27767286A JPS63130038A JP S63130038 A JPS63130038 A JP S63130038A JP 61277672 A JP61277672 A JP 61277672A JP 27767286 A JP27767286 A JP 27767286A JP S63130038 A JPS63130038 A JP S63130038A
- Authority
- JP
- Japan
- Prior art keywords
- forceps
- slit
- plug
- endoscope
- elastic
- 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
- 238000003780 insertion Methods 0.000 claims description 13
- 230000037431 insertion Effects 0.000 claims description 13
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 102100027340 Slit homolog 2 protein Human genes 0.000 description 6
- 101710133576 Slit homolog 2 protein Proteins 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000001574 biopsy Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Landscapes
- Endoscopes (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、内視鏡用鉗子栓、詳しくは、内視鏡の処置具
挿入口に取付られて、同挿入口の気密を保持する内視鏡
用鉗子栓に関する。Detailed Description of the Invention [Industrial Field of Application] The present invention relates to a forceps plug for an endoscope, and more specifically, a forceps plug for an endoscope, which is attached to a treatment tool insertion port of an endoscope to maintain the airtightness of the insertion port. Regarding forceps plugs for endoscopes.
［従来の技術］
第６図に示すように、従来の内視鏡用鉗子栓２２は、鉗
子挿入口の鉗子保持枠２４に嵌Ｑ’Ｊされており、鉗子
保持枠２４は内視鏡旦の操作部本体２３内および体腔内
挿入部２５内を貫通して設けられている鉗子チャンネル
（図示されず）の基端部の上記操作部本体２３に設けら
れている。この内視鏡用鉗子栓２２は、周知のように吸
引操作等を行なうときは処置具挿通口で外部に対してチ
ャンネル内を気密的にシールすると共に、処置具や送液
のための注射筒等を挿入する際には開口するという機能
が要求されている。なお、第６図において、符号２６は
接眼部、２７は吸引パイプ、２８は吸引装置を夫々示し
ている。[Prior Art] As shown in FIG. 6, a conventional forceps plug 22 for an endoscope is fitted into a forceps holding frame 24 of a forceps insertion port, and the forceps holding frame 24 is inserted into a forceps holding frame 24 of an endoscope. The forceps channel (not shown) is provided in the operating section main body 23 at the proximal end of a forceps channel (not shown) that is provided to penetrate the operating section main body 23 and the body cavity insertion section 25 . As is well known, the endoscope forceps plug 22 airtightly seals the inside of the channel from the outside through the treatment instrument insertion port when performing suction operations, etc. When inserting a device, etc., the function of opening is required. In FIG. 6, reference numeral 26 indicates an eyepiece, 27 indicates a suction pipe, and 28 indicates a suction device.
従来、この種の内視鏡用鉗子栓２２としては、第７．第
８図に示すように、断面形状がＭ字状のゴムＨ等の弾性
部材からなり、その上面中央の球面状凹部２２ａの底壁
の中心部には直径方向のスリット２９が穿設されている
も、１′、生はその弾力性によりスリット２９の両壁は
密着して閉じられるようになっている。そして、この鉗
子栓２２は、鉗子挿入口の鉗子保持枠２４に弾力的に着
脱自在に１されるようになっている。このように鉗子栓
２２が嵌着された内視鏡の鉗子挿入口に、第７図に示す
ように生検鉗子３０等を挿入する場合は、同生検鉗子３
０の先端部を上記鉗子栓２２のスリット２９内にその弾
力に抗して進入させるが、鉗子３０を挿入しても両者は
弾力的に密着している、ので、外部に対する気密性は保
持されるようになっている。又、上記従来技術において
、史に気密性を高めるためにスリット部分の肉厚を変形
したもの（特開昭６１−１３１７２３号公報参照）や、
スリット部の密着が弾性栓体のへクリによって低下する
のを防止するために弾性栓体のスリット部外周全周に保
持枠内周を密着、あるいは押圧させたもの（実開昭６１
−５７９０１号公報参照）等が提案されている。Conventionally, as this type of forceps plug 22 for an endoscope, No. 7. As shown in FIG. 8, it is made of an elastic member such as rubber H having an M-shaped cross section, and a diametrical slit 29 is bored in the center of the bottom wall of the spherical recess 22a at the center of the upper surface. Due to its elasticity, both walls of the slit 29 are tightly closed. The forceps plug 22 is elastically attached to and detachable from a forceps holding frame 24 of the forceps insertion opening. When inserting biopsy forceps 30 or the like into the forceps insertion opening of the endoscope into which the forceps plug 22 is fitted as shown in FIG.
The tip of the forceps 30 is inserted into the slit 29 of the forceps plug 22 against its elasticity, but even when the forceps 30 are inserted, the two remain elastically in close contact with each other, so airtightness from the outside is maintained. It has become so. In addition, in the above-mentioned prior art, there are those in which the thickness of the slit portion is modified to improve airtightness (see Japanese Patent Application Laid-open No. 131723/1983),
In order to prevent the adhesion of the slit from decreasing due to bending of the elastic plug, the inner periphery of the holding frame is brought into close contact with or pressed against the entire outer periphery of the slit of the elastic plug.
-57901) etc. have been proposed.
［発明が解決しようとする問題点］
ところで上述したように、鉗子栓の気密性を確保するた
めに種々の対策は採られてはいるものの、内視鏡チャン
ネルには、施術処置や送液・施薬のために頬繁に処置具
や注射筒がスリットが押し広げて挿入・挿脱されるので
、スリット部が摩耗やヘタリによって密着性が悪化し、
気密性が低下してしまう。その結果として、吸引操作を
行なった場合に、外部からの気密をスリットから吸引し
てチャンネル先端の吸引能力を低下させたり、又、患者
の体内より吸引した汚物がスリットから外部に洩れたり
、気管支鏡では患者が咳こむと気管支内の汚物が吹き出
したりして術者を汚染するという不具合があった。又、
上記スリット部の摩耗やヘタリによる気密性の低下を防
止するために、スリット部のの肉厚を更に厚くしたり、
弾性栓体のスリット部外周全周に保持枠内周を更に密着
または押圧させるようにすると、スリットの密着性につ
いては向上し改善されるものの、今度はスリットの開口
性が悪化してしまうので、処ｉｉ！ｉ’具や注射筒等の
挿入性が悪くなってしまい、処置具の破損や送液操作性
を低下させてしまうという欠点が生じてしまうという問
題点があった。[Problems to be Solved by the Invention] As mentioned above, although various measures have been taken to ensure the airtightness of the forceps plug, the endoscope channel cannot be used for surgical procedures, fluid supply, or As treatment tools and syringes are often inserted and removed in order to administer medication, the slit is pushed wide open, causing the slit to wear out and become loose, resulting in poor adhesion.
Airtightness will deteriorate. As a result, when a suction operation is performed, the airtightness from the outside is sucked through the slit, reducing the suction ability at the tip of the channel, and the dirt sucked from the patient's body leaks to the outside through the slit. The mirror had a problem in that when the patient coughed, the dirt in the bronchial tubes would blow out and contaminate the operator. or,
In order to prevent the deterioration of airtightness due to wear and deformation of the slit part, the wall thickness of the slit part is made thicker.
If the inner periphery of the holding frame is further brought into close contact with or pressed against the entire outer periphery of the slit portion of the elastic plug, the adhesion of the slit will be improved, but the openness of the slit will deteriorate. Treatment ii! There have been problems in that the ease of inserting the i' tool, the syringe, etc. becomes poor, resulting in damage to the treatment tool and reduced operability for fluid delivery.
従って、本発明の目的は、気密性を史に向上させると共
に、上述したような操作性の低下も生じない内視鏡用鉗
子栓を提供するにある。Therefore, an object of the present invention is to provide a forceps plug for an endoscope that has improved airtightness and does not cause the above-mentioned deterioration in operability.
［問題点を解決するための手段および作用］上述したよ
うな従来の鉗子栓が有していた問題点を解決するために
本発明においては、弾性栓体のスリットに対応する外周
部の、スリットと略直角方向に位置する中央部分のみ、
スリラットを閉りる方向に局部的に押圧する付勢手段を
設けると共に、弾性栓体のスリット外周部と保持枠との
間に空隙を設けることにより密着性と開口性を両立させ
るようにしたことを特徴とする。[Means and effects for solving the problems] In order to solve the problems of the conventional forceps plug as described above, the present invention provides a slit in the outer circumference corresponding to the slit of the elastic plug body. Only the central part located approximately perpendicular to
A biasing means for locally pressing the slit in the closing direction is provided, and a gap is provided between the slit outer circumference of the elastic stopper and the holding frame to achieve both adhesion and openness. It is characterized by
［実 施 例］ 以下、本発明を図示の実施例に基づいて説明する。[Example] Hereinafter, the present invention will be explained based on illustrated embodiments.
第１図は、本発明の一実施例を示す鉗子栓の縦断された
右半部の斜視図、第２図は」二記鉗ｒ栓が鉗子保持枠に
嵌着された状態を示す縦断面図である。この鉗子栓１は
第１．第２図に示すように、その断面形状がＭ字状のゴ
ム、軟質プラスチック材等からなる弾性部材からなり、
その１．曲中央部の球面状凹部１ａの底壁中心部には直
、径方向のスリット２が穿設されている。そして、その
側周面−Ｌ方寄りの部分、即ち、スリット２が穿設され
た部分の外周面に対応する部分の、上記スリット２と略
直角方向位置にはスリット２の長さより小さい区間で半
球状の突起３が設けられている（第３図参照）。なお第
２図中、符号４は内視鏡操作部本体の鉗子挿入口の鉗子
保持枠、５は−１−記鉗子保持枠４内に鉗子栓１と共に
嵌着される内弁、６は鉗子栓１の突起３の形成された外
周面と、これが嵌着される鉗子保持枠４の内周面との間
に形成される空隙をそれぞれ示している。FIG. 1 is a perspective view of the right half of a forceps plug according to an embodiment of the present invention, taken in longitudinal section, and FIG. It is a diagram. This forceps plug 1 is the first. As shown in Fig. 2, it is made of an elastic member made of rubber, soft plastic material, etc. whose cross-sectional shape is M-shaped.
Part 1. A straight and radial slit 2 is bored in the center of the bottom wall of the spherical recess 1a at the center of the curve. Then, in a portion of the side circumferential surface closer to −L, that is, a portion corresponding to the outer circumferential surface of the portion where the slit 2 is bored, a section smaller than the length of the slit 2 is located at a position approximately perpendicular to the slit 2. A hemispherical protrusion 3 is provided (see Fig. 3). In FIG. 2, reference numeral 4 indicates a forceps holding frame of the forceps insertion opening of the endoscope operating section main body, 5 indicates an inner valve that is fitted into the forceps holding frame 4 marked -1- together with the forceps plug 1, and 6 indicates a forceps. The gaps formed between the outer circumferential surface of the stopper 1 on which the protrusions 3 are formed and the inner circumferential surface of the forceps holding frame 4 into which the protrusions 3 are fitted are shown.
このように構成された鉗子栓１は、その弾性により第２
図に示すように、金属や硬質のプラスチック等よりなる
鉗子保持枠４に着脱自在に嵌着され、嵌着した状態では
、第３図に示すように、鉗子栓ｌはその突起３と鉗子保
持枠４の内周とによりスリット２の中央部で直角方向に
のみ押圧付勢されている。従って、スリットの密着性は
高く、処置具や注射筒がくり返し挿入され、スリット而
が摩耗したり、ヘタリが生じるような場合でも気密性は
保たれ、吸引力の低下や吸引時の汚物の洩れや吹き出し
等も生ずることはない。史に、スリット２は、その中央
部の小さい区間のみ押圧付勢されているだけであり、直
角方向以外には第３図に示すように変形自在であるため
、処置具や注射筒の挿入性を苦しく妨げるようなことは
ない。The forceps plug 1 configured in this way has a second
As shown in the figure, the forceps stopper l is removably fitted to a forceps holding frame 4 made of metal, hard plastic, etc., and in the fitted state, the forceps stopper l is connected to its protrusion 3 and the forceps holding frame 4, as shown in Fig. 3. The center portion of the slit 2 is pressed only in the right angle direction by the inner periphery of the frame 4. Therefore, the slit has a high degree of adhesion, and even when treatment tools and syringes are inserted repeatedly and the slit becomes worn or sagged, the airtightness is maintained, preventing a drop in suction power and leakage of dirt during suction. There are no bubbles or speech bubbles. Historically, the slit 2 is only pressurized in a small section at its center, and is deformable in directions other than the right angle, as shown in Figure 3, making it difficult to insert treatment instruments and syringe barrels. There is nothing that will hinder you in any way.
第４図（Ａ）は、本発明の他の実施例を示す鉗子栓の斜
視図、第４図（Ｂ）は上記鉗子栓が嵌着される鉗子保持
枠の要部を断面にした斜視図である。FIG. 4(A) is a perspective view of a forceps plug showing another embodiment of the present invention, and FIG. 4(B) is a perspective view in cross section of a main part of a forceps holding frame into which the forceps plug is fitted. It is.
この鉗子栓１１は、上記第１図の鉗子栓１の突起３に相
当する突起が無く、上部フランジのスリット１２方向に
相対する周側に一対の位置決め用切欠部１５が設けられ
ている。そして、鉗子栓上止が嵌着される鉗子保持枠１
４の先端面には、上記鉗子栓１１の切欠部１５に嵌合す
る一対の位置決め用突起部１６が設けられており、保持
枠内周面の上部帯りには、上記一対の突起部１６を結ぶ
直線と直交する向きに一対の半球状の突起１３が互いに
相対して設けられている（第５図参照）。なお、符号１
７は前記第３図の空隙６に相当する空隙を示す。This forceps plug 11 does not have a projection corresponding to the projection 3 of the forceps plug 1 shown in FIG. 1, and has a pair of positioning notches 15 on the circumferential side of the upper flange facing toward the slit 12. and a forceps holding frame 1 into which the forceps stopper is fitted;
4 is provided with a pair of positioning protrusions 16 that fit into the notch 15 of the forceps plug 11, and the upper band of the inner peripheral surface of the holding frame is provided with the pair of protrusions 16. A pair of hemispherical protrusions 13 are provided facing each other in a direction perpendicular to the straight line connecting them (see FIG. 5). In addition, code 1
Reference numeral 7 indicates a gap corresponding to the gap 6 in FIG. 3 above.
このように構成された本実施例における鉗子栓１１は、
鉗子保持枠１４に嵌着された状態では、第５図に示すよ
うに、上記突起１３が鉗子栓１１の外周面を押圧するよ
うに付勢するので、上記第１図における鉗子栓上とその
保持枠４の場合とは逆になっているが、鉗子栓１１のス
リット１２がその中央部のみをスリット１２と直角方向
に押圧付勢されている点は全く同様であり、その作用効
果も全く同様となる。The forceps plug 11 in this embodiment configured in this way is as follows:
When the forceps holding frame 14 is fitted, as shown in FIG. 5, the protrusions 13 press against the outer peripheral surface of the forceps plug 11, so that the forceps plug 11 and the top of the forceps plug shown in FIG. Although it is opposite to the case of the holding frame 4, the slit 12 of the forceps plug 11 is exactly the same in that only the central portion thereof is pressed and biased in the direction perpendicular to the slit 12, and its operation and effect are completely the same. It will be the same.
［発明の効果］
以上説明したように１、本発明によれば、■従来の鉗子
栓に比し、スリットの密着性が増加して気密性が大幅に
向」ニし、吸引操作等の吸引能力の低下や、スリットか
ら患者の吸引汚物か洩れたり吹き出したりして術者を汚
染するようなことは解消される。■処置具や注射筒を繰
り返し挿入することによってスリットが摩耗したりヘク
リが生ずるようなことがあっても密着性は維持され、気
密性は損なわれない。■更に気密性を維持しつつ、スリ
ットの開口性を著しく損なうようなことはなく、処置具
や注射筒の挿通性を良好に維持することができる。等の
顕著な効果を有する鉗子栓を提供することができる。[Effects of the Invention] As explained above, 1. According to the present invention, ■Compared to conventional forceps plugs, the tightness of the slit is increased and the airtightness is greatly improved, making it easier to perform suction operations such as suction operations. This eliminates problems such as a decrease in performance and contamination of the operator due to suctioned dirt from the patient leaking or blowing out from the slit. ■ Even if the slit is worn or dented due to repeated insertion of the treatment tool or syringe, the adhesion is maintained and airtightness is not impaired. (2) Furthermore, while maintaining airtightness, the opening of the slit is not significantly impaired, and the insertion of the treatment tool and the syringe can be maintained favorably. It is possible to provide a forceps plug that has remarkable effects such as the following.
第１図は、本発明の一実施例を示す鉗子栓の縦断された
右半部の斜視図、
第２図は、上記第１図の鉗子栓が鉗子保持枠に嵌着され
た状態を示す縦断面図
第３図は、」二記第２図における鉗子栓と鉗子保持枠の
作用を示すための線図、
第４図（Ａ）は、本発明の他の実施例を示す鉗子栓の斜
視図、第４図（Ｂ）は上記鉗子栓が嵌着される鉗子保持
枠の縦断された右半部の斜視図、第５図は、上記第４図
（Ａ’） 、 （Ｂ）の鉗子栓と鉗子保持枠の作用を示
すための線図、
第６図は、内視鏡の斜視図、
第７図は、鉗子栓が嵌着された鉗子挿入口に鉗子が挿入
される状態を示す斜視図、
第８図は、従来の鉗子栓の一例を示す縦断面図である。
上、上１・・・・・・鉗子栓 ４，１４・・・・・・
鉗子保持枠２．１２・・・・・・スリット ６，１７・
・・・・・空 隙３．１３・・・・・・突起（付勢手段
）処６図
クア
処７図FIG. 1 is a perspective view of the right half of a forceps plug according to an embodiment of the present invention, taken in longitudinal section. FIG. 2 shows the forceps plug shown in FIG. 1 fitted into a forceps holding frame. 3 is a longitudinal sectional view showing the action of the forceps plug and the forceps holding frame in FIG. 2, and FIG. FIG. 4(B) is a perspective view of the right half of the forceps holding frame in which the forceps plug is fitted, and FIG. 5 is a perspective view of the right half of FIG. 4(A') and (B) above. A diagram showing the functions of the forceps plug and the forceps holding frame. Figure 6 is a perspective view of the endoscope. Figure 7 shows the state in which forceps are inserted into the forceps insertion port with the forceps plug fitted. FIG. 8 is a longitudinal sectional view showing an example of a conventional forceps plug. Upper, Upper 1... Forceps plug 4, 14...
Forceps holding frame 2.12...Slit 6,17.
...Gap 3.13...Protrusion (biasing means) part Fig. 6 Quar part Fig. 7
Claims (4)
の処置具挿入口に取付けられて同挿入口の気密を保持す
る内視鏡用鉗子栓において、 上記弾性栓体の、スリットに対応する外周部であって、
スリットと略直角方向に位置する部分のみ、スリットを
閉じる方向に押圧する付勢手段を設けたことを特徴とす
る内視鏡用鉗子栓。(1) An endoscope forceps stopper that is made of an elastic stopper with a slit and is attached to a treatment instrument insertion port of an endoscope to maintain airtightness of the insertion port, wherein the elastic stopper has a slit. An outer peripheral portion corresponding to
A forceps plug for an endoscope, characterized in that only a portion located substantially perpendicular to the slit is provided with a biasing means for pressing the slit in a direction to close it.
ットと略直角方向に位置する部分に設けたスリット幅よ
り小さい幅の突起と、この突起を押圧する、上記弾性栓
体を嵌着する保持枠とからなることを特徴とする特許請
求の範囲第１項記載の内視鏡用鉗子栓。(2) The pressing biasing means fits the elastic plug body into a projection having a width smaller than the slit width provided on the outer circumferential surface of the elastic plug body in a direction substantially perpendicular to the slit, and presses the projection. The forceps plug for an endoscope according to claim 1, further comprising a holding frame for attaching the endoscope.
持枠の内面の、スリットと略直角方向に位置する部分に
設けた突起と、弾性栓体外周面とからなることを特徴と
する特許請求の範囲第１項記載の内視鏡用鉗子栓。(3) The pressing biasing means is characterized by comprising a protrusion provided on the inner surface of the holding frame into which the elastic plug is fitted, at a portion located approximately perpendicular to the slit, and the outer peripheral surface of the elastic plug. An endoscope forceps plug according to claim 1.
栓体を嵌着する保持枠の内面との間は、弾性栓体の押圧
付勢される部分を除き、弾性栓体の外側方向への変形を
許容するための空隙が設けられていることを特徴とする
特許請求の範囲第１項記載の内視鏡用鉗子栓。(4) The distance between the outer circumferential surface corresponding to the slit of the elastic wire body and the inner surface of the holding frame into which the elastic stopper is fitted is in the outward direction of the elastic stopper, except for the portion of the elastic stopper that is pressed. The forceps plug for an endoscope according to claim 1, wherein a space is provided to allow the forceps to be deformed.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61277672A JPS63130038A (en) | 1986-11-19 | 1986-11-19 | Forcept plug for endoscope |
| US07/107,946 US4809679A (en) | 1986-11-19 | 1987-10-13 | Forceps plug for endoscopes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61277672A JPS63130038A (en) | 1986-11-19 | 1986-11-19 | Forcept plug for endoscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63130038A true JPS63130038A (en) | 1988-06-02 |
Family
ID=17586691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61277672A Pending JPS63130038A (en) | 1986-11-19 | 1986-11-19 | Forcept plug for endoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63130038A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000084091A (en) * | 1998-09-11 | 2000-03-28 | Nippon Zeon Co Ltd | Medical valve element |
| JP2002143086A (en) * | 2000-11-07 | 2002-05-21 | Asahi Optical Co Ltd | Forceps valve for endoscope |
| JP2006296610A (en) * | 2005-04-19 | 2006-11-02 | Pentax Corp | Forceps plug of endoscope |
| JP2009183432A (en) * | 2008-02-06 | 2009-08-20 | Fujinon Corp | Biopsy port of endoscope |
| JP2018507767A (en) * | 2015-03-16 | 2018-03-22 | 唐 強TANG, Qiang | Multifunctional electric wart treatment device |
-
1986
- 1986-11-19 JP JP61277672A patent/JPS63130038A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000084091A (en) * | 1998-09-11 | 2000-03-28 | Nippon Zeon Co Ltd | Medical valve element |
| JP2002143086A (en) * | 2000-11-07 | 2002-05-21 | Asahi Optical Co Ltd | Forceps valve for endoscope |
| JP4723075B2 (en) * | 2000-11-07 | 2011-07-13 | Ｈｏｙａ株式会社 | Endoscope forceps plug |
| JP2006296610A (en) * | 2005-04-19 | 2006-11-02 | Pentax Corp | Forceps plug of endoscope |
| JP4648748B2 (en) * | 2005-04-19 | 2011-03-09 | Ｈｏｙａ株式会社 | Endoscope forceps plug |
| JP2009183432A (en) * | 2008-02-06 | 2009-08-20 | Fujinon Corp | Biopsy port of endoscope |
| JP2018507767A (en) * | 2015-03-16 | 2018-03-22 | 唐 強TANG, Qiang | Multifunctional electric wart treatment device |
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