JP4648744B2 - Endoscope forceps plug - Google Patents

Endoscope forceps plug Download PDF

Info

Publication number
JP4648744B2
JP4648744B2 JP2005114172A JP2005114172A JP4648744B2 JP 4648744 B2 JP4648744 B2 JP 4648744B2 JP 2005114172 A JP2005114172 A JP 2005114172A JP 2005114172 A JP2005114172 A JP 2005114172A JP 4648744 B2 JP4648744 B2 JP 4648744B2
Authority
JP
Japan
Prior art keywords
wall portion
forceps plug
slit
treatment instrument
insertion channel
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 - Fee Related
Application number
JP2005114172A
Other languages
Japanese (ja)
Other versions
JP2006288780A (en
Inventor
矢寿子 石井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoya Corp
Original Assignee
Hoya Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hoya Corp filed Critical Hoya Corp
Priority to JP2005114172A priority Critical patent/JP4648744B2/en
Publication of JP2006288780A publication Critical patent/JP2006288780A/en
Application granted granted Critical
Publication of JP4648744B2 publication Critical patent/JP4648744B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00131—Accessories for endoscopes
    • A61B1/00137—End pieces at either end of the endoscope, e.g. caps, seals or forceps plugs

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biomedical Technology (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biophysics (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Endoscopes (AREA)

Description

この発明は、内視鏡の処置具挿通チャンネルを通って逆流する体内汚液等が処置具挿通チャンネルの入口部から吹き出さないようにするための内視鏡の鉗子栓に関する。   The present invention relates to a forceps plug of an endoscope for preventing in-vivo sewage or the like flowing backward through a treatment instrument insertion channel of an endoscope from being blown out from an inlet portion of the treatment instrument insertion channel.

内視鏡の鉗子栓は一般に、処置具挿通チャンネルに連通する状態に処置具挿通チャンネルの入口に取り付けられる筒状の鉗子栓本体と、その鉗子栓本体の突端側開口部に着脱自在な蓋体とを有していて、鉗子栓本体内と蓋体の各々に形成された閉鎖膜に、処置具挿通チャンネルに挿脱される処置具の通過により押し広げられるスリットが形成されている。   In general, a forceps plug of an endoscope is a cylindrical forceps plug main body that is attached to an entrance of a treatment instrument insertion channel so as to communicate with the treatment instrument insertion channel, and a lid body that is detachable from a protruding end side opening of the forceps plug main body. In the closure membrane formed in each of the forceps plug main body and the lid body, a slit is formed that is spread by passing the treatment instrument inserted into and removed from the treatment instrument insertion channel.

そして従来、そのような内視鏡の鉗子栓の閉鎖膜は、内方に凸の球面壁状に形成されたり、内方に凸の築山突出部状に形成されていた（例えば、特許文献１）。
実公平７−１５５２２ Conventionally, the closure membrane of the forceps plug of such an endoscope has been formed in a spherical wall shape that is convex inward, or is formed in the shape of a protruding ridge that is convex inward (for example, Patent Document 1). ).
Reality 7-15522

鉗子栓本体内に形成された閉鎖膜は、処置具挿通チャンネル内の圧力を直接受けるので、そのスリットに隙間ができると体内からの逆流汚液等が患者のゲップ等により蓋体の閉鎖膜との間の空間に吹き出し、その後の処置具の挿脱等に伴って蓋体のスリットから外部に流出して周囲を汚染する恐れがある。   The closure membrane formed in the forceps plug body directly receives the pressure in the treatment instrument insertion channel, so if there is a gap in the slit, the backflow sewage from the body and the closure membrane of the lid will be There is a risk that it will blow out into the space between the two, and will flow out to the outside from the slit of the lid body with the subsequent insertion and removal of the treatment tool, etc., and contaminate the surroundings.

しかし、上述のように閉鎖膜が内方に凸の球面壁状或いは築山突出部状に形成された従来の内視鏡の鉗子栓においては、処置具の挿脱によって、鉗子栓本体内の閉鎖膜に形成されているスリットに摩耗や亀裂が発生し易かった。   However, in the forceps plug of the conventional endoscope in which the closing film is formed in the shape of a spherical wall or convex portion protruding inward as described above, the closure inside the forceps plug main body is achieved by inserting and removing the treatment tool. Wear and cracks were easily generated in the slit formed in the film.

そこで本発明は、鉗子栓本体内の閉鎖膜に形成されているスリットに、処置具の挿脱による摩耗や亀裂が発生し難い内視鏡の鉗子栓を提供することを目的とする。   Therefore, an object of the present invention is to provide an endoscopic forceps plug in which wear and cracks due to insertion and removal of a treatment tool hardly occur in a slit formed in a closing membrane in a forceps plug body.

上記の目的を達成するため、本発明の内視鏡の鉗子栓は、内視鏡の処置具挿通チャンネルに連通する状態に基端側が処置具挿通チャンネルの入口に取り付けられる筒状の鉗子栓本体と、鉗子栓本体の突端側開口部に着脱自在な蓋体とを有し、鉗子栓本体内に形成されて処置具挿通チャンネル内の圧力を直接受ける弾力性のある材料からなる内側閉鎖膜に、常態では閉じていて処置具挿通チャンネルに挿脱される処置具の通過により押し広げられる第１のスリットが形成されると共に、蓋体に形成された弾力性のある材料からなる外側閉鎖膜に、常態では閉じていて処置具挿通チャンネルに挿脱される処置具の通過により押し広げられる第２のスリットが形成された内視鏡の鉗子栓において、鉗子栓本体内に形成された内側閉鎖膜が、第１のスリットが形成された細長い長方形状の底壁部と、第１のスリットに対して垂直な断面において底壁部を頂点として突端側開口部側へ次第に広がる二等辺三角形の二等辺状のＶ状壁部と、Ｖ状壁部の二つの壁部の側縁どうしを気密に連結する側壁部とにより形成されているものである。   In order to achieve the above object, the forceps plug of the endoscope of the present invention is a cylindrical forceps plug main body whose proximal end is attached to the entrance of the treatment instrument insertion channel so as to communicate with the treatment instrument insertion channel of the endoscope. And an inner closure membrane made of a resilient material that is formed in the forceps plug body and directly receives the pressure in the treatment instrument insertion channel. In the normal state, a first slit is formed which is expanded by the passage of the treatment instrument that is closed and inserted into and removed from the treatment instrument insertion channel, and is formed on the outer closing membrane made of a resilient material formed on the lid. In an endoscopic forceps plug in which a second slit is formed which is normally closed and is pushed and spread by passage of the treatment tool inserted into and removed from the treatment tool insertion channel, an inner closing film formed in the forceps plug body But the first An isosceles V-shape that is an isosceles triangle that gradually spreads toward the tip side opening portion with the bottom wall as a vertex in a cross section perpendicular to the first slit. It is formed by the wall part and the side wall part which airtightly connects the side edges of the two wall parts of the V-shaped wall part.

なお、内側閉鎖膜のＶ状壁部が、第１のスリットに対して垂直な断面において底壁部を頂点として突端側開口部側へ次第に広がる正三角形の二辺状に形成されていてもよい。
そして、Ｖ状壁部と側壁部の壁厚が各々、一定の壁厚であるか或いは底壁部側へ次第に薄く形成されていてもよく、Ｖ状壁部と側壁部の壁厚が各々１ｍｍ以下であるとよい。 Note that the V-shaped wall portion of the inner closing membrane may be formed in the shape of two sides of an equilateral triangle that gradually spreads from the bottom wall portion to the tip side opening portion side in a cross section perpendicular to the first slit. .
The wall thickness of the V-shaped wall portion and the side wall portion may be a constant wall thickness or may be formed gradually thinner toward the bottom wall portion side, and the wall thickness of the V-shaped wall portion and the side wall portion may be 1 mm each. It may be the following.

なお、第１のスリットと第２のスリットとが、直交する方向に形成されていてもよい。   Note that the first slit and the second slit may be formed in orthogonal directions.

本発明によれば、鉗子栓本体内に形成された内側閉鎖膜が、第１のスリットが形成された細長い長方形状の底壁部と、第１のスリットに対して垂直な断面において底壁部を頂点として突端側開口部側へ次第に広がる二等辺三角形の二等辺状のＶ状壁部と、Ｖ状壁部の二つの壁部の側縁どうしを気密に連結する側壁部とにより形成されていることにより、使用時に処置具が挿入されるとその処置具の外形形状や横振れの動作等に追従して内側閉鎖膜全体が容易に変形し、第１のスリットに処置具の挿脱による摩耗や亀裂が発生し難い。   According to the present invention, the inner closure membrane formed in the forceps plug body includes an elongated rectangular bottom wall portion in which the first slit is formed, and a bottom wall portion in a cross section perpendicular to the first slit. Is an isosceles triangle isosceles V-shaped wall portion that gradually spreads toward the tip side opening side, and a side wall portion that airtightly connects the side edges of the two wall portions of the V-shaped wall portion. Therefore, when the treatment instrument is inserted at the time of use, the entire inner closure membrane easily deforms following the outer shape of the treatment instrument, the lateral movement, etc., and the treatment instrument is inserted into and removed from the first slit. Less likely to wear or crack.

内視鏡の処置具挿通チャンネルに連通する状態に基端側が処置具挿通チャンネルの入口に取り付けられる筒状の鉗子栓本体と、鉗子栓本体の突端側開口部に着脱自在な蓋体とを有し、鉗子栓本体内に形成されて処置具挿通チャンネル内の圧力を直接受ける弾力性のある材料からなる内側閉鎖膜に、常態では閉じていて処置具挿通チャンネルに挿脱される処置具の通過により押し広げられる第１のスリットが形成されると共に、蓋体に形成された弾力性のある材料からなる外側閉鎖膜に、常態では閉じていて処置具挿通チャンネルに挿脱される処置具の通過により押し広げられる第２のスリットが形成された内視鏡の鉗子栓において、鉗子栓本体内に形成された内側閉鎖膜が、第１のスリットが形成された細長い長方形状の底壁部と、第１のスリットに対して垂直な断面において底壁部を頂点として突端側開口部側へ次第に広がる二等辺三角形の二等辺状のＶ状壁部と、Ｖ状壁部の二つの壁部の側縁どうしを気密に連結する側壁部とにより形成されている。   A cylindrical forceps plug body whose proximal end is attached to the entrance of the treatment instrument insertion channel so as to communicate with the treatment instrument insertion channel of the endoscope, and a detachable lid on the projecting end opening of the forceps plug body. And the passage of the treatment tool that is normally closed and inserted into and removed from the treatment instrument insertion channel is formed in the inner closure membrane made of a resilient material that is formed in the forceps plug body and directly receives the pressure in the treatment instrument insertion channel. The first slit that is spread by the step is formed, and the treatment instrument that is normally closed and inserted into and removed from the treatment instrument insertion channel is formed on the outer closure film made of a resilient material formed on the lid. In the endoscopic forceps plug formed with the second slit to be spread by the inner closure membrane formed in the forceps plug main body, an elongated rectangular bottom wall portion in which the first slit is formed; First The isosceles V-shaped wall portion of an isosceles triangle that gradually spreads toward the tip side opening portion with the bottom wall as a vertex in a cross section perpendicular to the grid, and the side edges of the two wall portions of the V-shaped wall portion. And a side wall portion that hermetically connects the two.

図面を参照して本発明の実施例を説明する。
図３において、１は内視鏡の挿入部、２は、挿入部１の基端に連結された操作部である。 Embodiments of the present invention will be described with reference to the drawings.
In FIG. 3, reference numeral 1 denotes an insertion portion of the endoscope, and 2 denotes an operation portion connected to the proximal end of the insertion portion 1.

挿入部１内には、処置具５０を挿通するための処置具挿通チャンネル３が全長にわたって挿通配置されていて、操作部２の下端部に配置された処置具挿通チャンネル３の入口開口部には、処置具挿通チャンネル３内を通って逆流する体内汚液等が外方に吹き出さないようにするための鉗子栓１０が着脱自在に取り付けられている。   A treatment instrument insertion channel 3 for inserting the treatment instrument 50 is inserted through the entire length of the insertion section 1, and an inlet opening of the treatment instrument insertion channel 3 disposed at the lower end of the operation section 2 is disposed in the insertion section 1. A forceps plug 10 is detachably attached to prevent the body sewage or the like flowing backward through the treatment instrument insertion channel 3 from blowing out.

図１と図２は、鉗子栓１０の正面断面図と側面断面図であり、鉗子栓１０は、処置具挿通チャンネル３の入口口金４に取り付けられる樽形の筒状に形成された鉗子栓本体１１と、鉗子栓本体１１の突端側開口部に着脱自在な蓋体１２とを有していて、全体が弾力性のあるゴム材等によって構成されている。   FIGS. 1 and 2 are a front sectional view and a side sectional view of the forceps plug 10, and the forceps plug 10 is formed into a barrel-shaped cylinder attached to the inlet cap 4 of the treatment instrument insertion channel 3. 11 and a detachable lid 12 at the opening on the protruding end side of the forceps plug main body 11, and the whole is constituted by a rubber material or the like having elasticity.

鉗子栓本体１１の内面の基端寄りの部分には、処置具挿通チャンネル３の入口口金４に対して係脱自在な小径部１３が形成されており、小径部１３を弾性変形させて、入口口金４を締め付ける状態に取り付け或いは取り外すことができる。なお、図１及び図２には、小径部１３の弾性変形していない形状が入口口金４と重ねて図示されている。   A portion of the inner surface of the forceps plug main body 11 near the proximal end is formed with a small diameter portion 13 that can be engaged with and disengaged from the inlet base 4 of the treatment instrument insertion channel 3. The base 4 can be attached or removed in a tightened state. In FIGS. 1 and 2, the shape of the small diameter portion 13 that is not elastically deformed is overlapped with the inlet base 4.

蓋体１２は、弾力性のあるゴム材で蓋体１２と一体に形成された連結紐状部材１４により鉗子栓本体１１の基部と連結されていて、鉗子栓本体１１から取り外されてもその近くにぶら下げられた状態になるようになっている。   The lid 12 is connected to the base of the forceps plug main body 11 by a connecting string-like member 14 formed integrally with the lid 12 with an elastic rubber material. It comes to be in the state hung by.

また、鉗子栓本体１１の突端側開口部近くの外面には円周溝１５が形成されていて、それに係合する周状の内方突起部１６が蓋体１２側に形成されている。したがって、蓋体１２の内方突起部１６を弾性変形させて円周溝１５に対し係脱させることにより、蓋体１２を鉗子栓本体１１に対して取り付け及び取り外しすることができる。   A circumferential groove 15 is formed on the outer surface of the forceps plug main body 11 near the projecting end side opening, and a circumferential inward projection 16 that engages with the groove 15 is formed on the lid 12 side. Therefore, the lid 12 can be attached to and detached from the forceps plug body 11 by elastically deforming the inward projection 16 of the lid 12 and engaging / disengaging it with the circumferential groove 15.

そのように構成された鉗子栓本体１１内と蓋体１２とには各々、常態では閉じていて処置具挿通チャンネル３に挿脱される処置具５０の通過により押し広げられるスリット１８，２０を有する閉鎖膜１７（１７ａ，１７ｂ，１７ｃ），１９が形成されている。   Each of the forceps plug body 11 and the lid body 12 thus configured has slits 18 and 20 that are normally closed and pushed and expanded by passage of the treatment instrument 50 inserted into and removed from the treatment instrument insertion channel 3. Closure membranes 17 (17a, 17b, 17c) and 19 are formed.

鉗子栓本体１１内の内側閉鎖膜１７に形成された第１のスリット１８は、処置具挿通チャンネル３の入口口金４の開口に対向する位置に配置されていて処置具挿通チャンネル３内の圧力を直接受け、蓋体１２の外側閉鎖膜１９に形成された第２のスリット２０は、第１のスリット１８に対して直交する状態、即ち入口口金４の軸線方向から第１のスリット１８と第２のスリット２０とを重ねて見ると＋状になる位置関係に形成されている。   The first slit 18 formed in the inner closing membrane 17 in the forceps plug main body 11 is disposed at a position facing the opening of the inlet base 4 of the treatment instrument insertion channel 3 and applies pressure in the treatment instrument insertion channel 3. The second slit 20 formed directly on the outer closing film 19 of the lid 12 is perpendicular to the first slit 18, that is, from the axial direction of the inlet cap 4, the first slit 18 and the second slit 20. When the slits 20 are overlapped with each other, they are formed in a positional relationship that becomes +.

図４と図５は、蓋体１２が取り外された状態の鉗子栓本体１１の正面断面図と側面断面図であり、図６、図７、図８、図９及び図１０は、鉗子栓本体１１に形成された内側閉鎖膜１７の形状を示すために、図１１及び図１２における矢視VI、VII−VII断面、VIII−VIII断面、IX−IX断面及び矢視Ｘを図示したものである。   4 and 5 are a front sectional view and a side sectional view of the forceps plug body 11 with the lid 12 removed, and FIGS. 6, 7, 8, 9, and 10 are the forceps plug body. 11 and FIG. 12 show the arrow VI, the VII-VII cross section, the VIII-VIII cross section, the IX-IX cross section, and the arrow X in FIG. .

内側閉鎖膜１７（１７ａ，１７ｂ，１７ｃ）は、第１のスリット１８が中心部分に真っ直ぐに形成された細長い長方形状の底壁部１７ａと、第１のスリット１８に対して垂直な断面において底壁部１７ａを頂点として鉗子栓本体１１の突端側開口部側へ次第に広がる二等辺三角形の二等辺状のＶ状壁部１７ｂと、Ｖ状壁部１７ｂの二つの壁部の側縁どうしを気密に連結する側壁部１７ｃとにより形成されている。   The inner closing membrane 17 (17 a, 17 b, 17 c) has an elongated rectangular bottom wall portion 17 a in which the first slit 18 is formed straight in the center portion, and a bottom in a cross section perpendicular to the first slit 18. An isosceles triangle isosceles V-shaped wall portion 17b that gradually spreads toward the opening side of the distal end of the forceps plug body 11 with the wall portion 17a as a vertex, and the side edges of the two wall portions of the V-shaped wall portion 17b are airtight And a side wall portion 17c connected to the.

なお、側壁部１７ｃは円筒壁状又は突端側開口部側へ次第に広がる円錐壁状に形成されており、Ｖ状壁部１７ｂは、この実施例では図４に示されるように挟角が６０°の正三角形の二辺状に形成されており、処置具５０の挿脱を非常にスムーズに行うことができる。   The side wall portion 17c is formed in a cylindrical wall shape or a conical wall shape that gradually spreads toward the protruding end side opening side, and the V-shaped wall portion 17b has an included angle of 60 ° as shown in FIG. The treatment instrument 50 can be inserted / removed very smoothly.

底壁部１７ａ、Ｖ状壁部１７ｂ及び側壁部１７ｃの各壁の壁厚は各々１ｍｍ以下であり、Ｖ状壁部１７ｂと側壁部１７ｃは、全体に一定の壁厚であるか、或いは第１のスリット１８が形成されている底壁部１７ａ側へ次第に薄く形成されている。底壁部１７ａは第１のスリット１８を中心にして幅（Ａ）が１．５ｍｍ以下であり、その表裏両面において第１のスリット１８が側壁部１７ｃと干渉しないように形成されている。   The wall thickness of each of the bottom wall portion 17a, the V-shaped wall portion 17b, and the side wall portion 17c is 1 mm or less, and the V-shaped wall portion 17b and the side wall portion 17c have a constant wall thickness as a whole or It is gradually formed thinner toward the bottom wall 17a side where one slit 18 is formed. The bottom wall portion 17a has a width (A) of 1.5 mm or less with the first slit 18 as the center, and is formed so that the first slit 18 does not interfere with the side wall portion 17c on both the front and back surfaces.

即ち、内側閉鎖膜１７の寸法形状に関しては、図４及び図５において、Ａ≦１．５ｍｍ、ｔ≦１ｍｍ、ｔ′≦１ｍｍ、Ｅ≦Ｄ≦Ｆ、角度Ｂ＜角度Ｃ≦９０°、角度Ｂ≦角度Ｇ、角度Ｃ≦角度Ｈである。   That is, regarding the dimensional shape of the inner closing membrane 17, in FIGS. 4 and 5, A ≦ 1.5 mm, t ≦ 1 mm, t ′ ≦ 1 mm, E ≦ D ≦ F, angle B <angle C ≦ 90 °, angle B ≦ angle G, angle C ≦ angle H.

このように構成された鉗子栓１０においては、図１３に示されるように、使用時に処置具５０が挿入されると処置具５０の外形形状や横振れの動作等に追従して内側閉鎖膜１７全体が容易に変形するので、第１のスリット１８の摩耗や亀裂が発生し難く、その結果、患者がゲップ等をして処置具挿通チャンネル３内の圧力が急上昇しても、体内からの逆流汚液等が内側閉鎖膜１７と外側閉鎖膜１９との間の空間に吹き出さない。   In the forceps plug 10 configured as described above, as shown in FIG. 13, when the treatment instrument 50 is inserted during use, the inner closure membrane 17 follows the outer shape of the treatment instrument 50, the lateral movement operation, and the like. Since the whole is easily deformed, it is difficult for the first slit 18 to be worn or cracked. As a result, even if the patient makes a getp or the like and the pressure in the treatment instrument insertion channel 3 rapidly rises, Stain or the like does not blow out into the space between the inner closing film 17 and the outer closing film 19.

本発明の実施例の内視鏡の鉗子栓の正面断面図である。It is front sectional drawing of the forceps stopper of the endoscope of the Example of this invention. 本発明の実施例の内視鏡の鉗子栓の側面断面図である。It is side surface sectional drawing of the forceps stopper of the endoscope of the Example of this invention. 本発明の実施例の内視鏡の外観図である。It is an external view of the endoscope of the Example of this invention. 本発明の実施例の鉗子栓本体の正面断面図である。It is front sectional drawing of the forceps stopper main body of the Example of this invention. 本発明の実施例の鉗子栓本体の側面断面図である。It is side surface sectional drawing of the forceps stopper main body of the Example of this invention. 本発明の実施例の図１１における矢視VI図である。It is arrow VI figure in FIG. 11 of the Example of this invention. 本発明の実施例の図１１におけるVII−VII断面図である。It is VII-VII sectional drawing in FIG. 11 of the Example of this invention. 本発明の実施例の図１２におけるVIII−VIII断面図である。It is VIII-VIII sectional drawing in FIG. 12 of the Example of this invention. 本発明の実施例の図１１におけるIX−IX断面図である。It is IX-IX sectional drawing in FIG. 11 of the Example of this invention. 本発明の実施例の図１１における矢視Ｘ図である。It is arrow X figure in FIG. 11 of the Example of this invention. 本発明の実施例の鉗子栓本体の正面断面図である。It is front sectional drawing of the forceps stopper main body of the Example of this invention. 本発明の実施例の鉗子栓本体の側面断面図である。It is side surface sectional drawing of the forceps stopper main body of the Example of this invention. 本発明の実施例の内視鏡の鉗子栓の使用状態の正面断面図である。It is front sectional drawing of the use condition of the forceps stopper of the endoscope of the Example of this invention.

符号の説明Explanation of symbols

３ 処置具挿通チャンネル
４ 入口口金
１０ 鉗子栓
１１ 鉗子栓本体
１２ 蓋体
１７ 内側閉鎖膜
１７ａ 底壁部
１７ｂ Ｖ状壁部
１７ｃ 側壁部
１８ 第１のスリット
１９ 外側閉鎖膜
２０ 第２のスリット
５０ 処置具 DESCRIPTION OF SYMBOLS 3 Treatment tool insertion channel 4 Inlet cap 10 Forceps stopper 11 Forceps stopper main body 12 Lid body 17 Inner closing membrane 17a Bottom wall portion 17b V-shaped wall portion 17c Side wall portion 18 First slit 19 Outer closing membrane 20 Second slit 50 Treatment Ingredients

Claims (5)

内視鏡の処置具挿通チャンネルに連通する状態に基端側が上記処置具挿通チャンネルの入口に取り付けられる筒状の鉗子栓本体と、上記鉗子栓本体の突端側開口部に着脱自在な蓋体とを有し、上記鉗子栓本体内に形成されて上記処置具挿通チャンネル内の圧力を直接受ける弾力性のある材料からなる内側閉鎖膜に、常態では閉じていて上記処置具挿通チャンネルに挿脱される処置具の通過により押し広げられる第１のスリットが形成されると共に、上記蓋体に形成された弾力性のある材料からなる外側閉鎖膜に、常態では閉じていて上記処置具挿通チャンネルに挿脱される処置具の通過により押し広げられる第２のスリットが形成された内視鏡の鉗子栓において、
上記鉗子栓本体内に形成された上記内側閉鎖膜が、上記第１のスリットが形成された細長い長方形状の底壁部と、上記第１のスリットに対して垂直な断面において上記底壁部を頂点として上記突端側開口部側へ次第に広がる二等辺三角形の二等辺状のＶ状壁部と、上記Ｖ状壁部の二つの壁部の側縁どうしを気密に連結する側壁部とにより形成されていることを特徴とする内視鏡の鉗子栓。 A cylindrical forceps plug main body whose proximal end is attached to the entrance of the treatment instrument insertion channel in a state of communicating with the treatment instrument insertion channel of the endoscope, and a lid body detachably attached to the protrusion side opening of the forceps plug main body; And is normally closed and inserted into and removed from the treatment instrument insertion channel.The inner closure membrane is made of an elastic material that is formed in the forceps plug body and directly receives the pressure in the treatment instrument insertion channel. A first slit that is pushed and spread by the passage of the treatment tool is formed, and is closed to an outer closing membrane made of a resilient material formed on the lid body, and is normally closed and inserted into the treatment tool insertion channel. In the forceps plug of the endoscope in which a second slit is formed which is expanded by passing the treatment tool to be removed,
The inner closing membrane formed in the forceps plug main body has an elongated rectangular bottom wall portion in which the first slit is formed, and the bottom wall portion in a cross section perpendicular to the first slit. It is formed by an isosceles triangle isosceles V-shaped wall portion that gradually spreads toward the tip side opening portion as a vertex, and a side wall portion that airtightly connects the side edges of the two wall portions of the V-shaped wall portion. An endoscopic forceps plug characterized by comprising: 上記内側閉鎖膜の上記Ｖ状壁部が、上記第１のスリットに対して垂直な断面において上記底壁部を頂点として上記突端側開口部側へ次第に広がる正三角形の二辺状に形成されている請求項１記載の内視鏡の鉗子栓。   The V-shaped wall portion of the inner closing membrane is formed in the shape of two sides of an equilateral triangle that gradually spreads toward the tip side opening portion with the bottom wall portion as a vertex in a cross section perpendicular to the first slit. The endoscopic forceps plug according to claim 1. 上記Ｖ状壁部と上記側壁部の壁厚が各々、一定の壁厚であるか或いは上記底壁部側へ次第に薄く形成されている請求項１又は２記載の内視鏡の鉗子栓。   The forceps plug for an endoscope according to claim 1 or 2, wherein the wall thickness of each of the V-shaped wall portion and the side wall portion is a constant wall thickness or gradually thinner toward the bottom wall portion side. 上記Ｖ状壁部と上記側壁部の壁厚が各々１ｍｍ以下である請求項１、２又は３記載の内視鏡の鉗子栓。   The endoscopic forceps plug according to claim 1, 2, or 3, wherein the V-shaped wall portion and the side wall portion each have a wall thickness of 1 mm or less. 上記第１のスリットと上記第２のスリットとが、直交する方向に形成されている請求項１ないし４のいずれかの項に記載の内視鏡の鉗子栓。   The forceps plug for an endoscope according to any one of claims 1 to 4, wherein the first slit and the second slit are formed in a direction orthogonal to each other.
JP2005114172A 2005-04-12 2005-04-12 Endoscope forceps plug Expired - Fee Related JP4648744B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005114172A JP4648744B2 (en) 2005-04-12 2005-04-12 Endoscope forceps plug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005114172A JP4648744B2 (en) 2005-04-12 2005-04-12 Endoscope forceps plug

Publications (2)

Publication Number Publication Date
JP2006288780A JP2006288780A (en) 2006-10-26
JP4648744B2 true JP4648744B2 (en) 2011-03-09

Family

ID=37410034

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005114172A Expired - Fee Related JP4648744B2 (en) 2005-04-12 2005-04-12 Endoscope forceps plug

Country Status (1)

Country Link
JP (1) JP4648744B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5024988B2 (en) * 2006-12-15 2012-09-12 Ｈｏｙａ株式会社 Endoscope forceps plug
JP5409742B2 (en) 2011-09-30 2014-02-05 富士フイルム株式会社 Plug
WO2019182536A2 (en) * 2017-12-07 2019-09-26 Pergo Medi̇kal Ve İlaç A.Ş. Novelty in biopsy valve cap hole embodiment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0333603U (en) * 1989-08-10 1991-04-03
JP2001231748A (en) * 2000-02-22 2001-08-28 Asahi Optical Co Ltd Forceps plug of endoscope
JP2002143086A (en) * 2000-11-07 2002-05-21 Asahi Optical Co Ltd Forceps valve for endoscope
JP2005000407A (en) * 2003-06-12 2005-01-06 Pentax Corp Endoscopic system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5955502U (en) * 1982-10-06 1984-04-11 オリンパス光学工業株式会社 Endoscope “can”
JP2950640B2 (en) * 1991-04-26 1999-09-20 株式会社東芝 Endoscope
JP3266713B2 (en) * 1993-10-05 2002-03-18 旭光学工業株式会社 Endoscope forceps stopper
JP3450442B2 (en) * 1994-07-15 2003-09-22 ペンタックス株式会社 Endoscope
JPH09215658A (en) * 1995-12-07 1997-08-19 Asahi Optical Co Ltd Forceps plug for endoscope
JPH10192227A (en) * 1997-01-10 1998-07-28 Fuji Photo Optical Co Ltd Forceps plug for endoscope

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0333603U (en) * 1989-08-10 1991-04-03
JP2001231748A (en) * 2000-02-22 2001-08-28 Asahi Optical Co Ltd Forceps plug of endoscope
JP2002143086A (en) * 2000-11-07 2002-05-21 Asahi Optical Co Ltd Forceps valve for endoscope
JP2005000407A (en) * 2003-06-12 2005-01-06 Pentax Corp Endoscopic system

Also Published As

Publication number Publication date
JP2006288780A (en) 2006-10-26

Similar Documents

Publication Publication Date Title
JP4200731B2 (en) Endoscope forceps plug
JP5383312B2 (en) Duckbill valve
CN108601508B (en) Bending operation mechanism of endoscope
JP4648744B2 (en) Endoscope forceps plug
JP4648748B2 (en) Endoscope forceps plug
JP4344734B2 (en) Medical treatment instrument insertion port
JP4761813B2 (en) Endoscope forceps plug
JPWO2018105025A1 (en) Overtube, endoscope system and cap
JP2009028197A (en) Forcipate plug of endoscope
JP4406141B2 (en) Endoscope forceps plug
JP4904195B2 (en) Endoscope forceps plug
KR101589634B1 (en) V-type silicone valve for trocar and the sleeve using it
JP4475718B2 (en) Endoscope forceps plug
JP5024988B2 (en) Endoscope forceps plug
JP4531442B2 (en) Endoscope forceps plug
JP2001218733A (en) Forceps plug of endoscope
JP4338482B2 (en) Endoscope forceps plug
JP4566779B2 (en) Endoscope forceps plug
JP4928929B2 (en) Endoscope forceps plug
JP4904194B2 (en) Endoscope forceps plug
JP4953772B2 (en) Endoscope forceps plug
JP2005000407A (en) Endoscopic system
JP5024987B2 (en) Endoscope forceps plug
JP2009183432A (en) Biopsy port of endoscope
JPH0595501U (en) Endoscopic forceps plug

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20080219

A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A712

Effective date: 20080501

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20101111

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20101118

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20101210

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131217

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

LAPS Cancellation because of no payment of annual fees