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JP2009268777A - Forceps plug for endoscope - Google Patents

Forceps plug for endoscope Download PDF

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Publication number
JP2009268777A
JP2009268777A JP2008123063A JP2008123063A JP2009268777A JP 2009268777 A JP2009268777 A JP 2009268777A JP 2008123063 A JP2008123063 A JP 2008123063A JP 2008123063 A JP2008123063 A JP 2008123063A JP 2009268777 A JP2009268777 A JP 2009268777A
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main body
stopper member
plug
treatment tool
forceps
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Ryo Ishikawa
諒 石川
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Fujinon Corp
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Fujinon Corp
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    • 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

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Abstract

<P>PROBLEM TO BE SOLVED: To easily fix a treatment tool with a simple configuration without significantly changing a forceps opening part, and also to easily fix the treatment tool at a desired insertion position. <P>SOLUTION: In the forceps plug 12 made of an elastic material, a plug 14 is made freely attachable/detachable to/from a main body 13. A stopper member 22 composed of a columnar block body made of an elastic rubber material is integrally formed with the body 13 via a connection part 21. A notch (a pinch part) 24 is formed from the center to the outer periphery of the stopper member 22. The stopper member 22 pinches the treatment tool 16 by the notch part 24. While pinching, a fitting recession 22a is fitted to a disk shape projection 14b, thereby arranging the treatment tool 16 in the center space 24a of the notch 24. Consequently, the treatment tool 16 is fixed so as not to be moved in an inserting/extracting direction. The stopper member may be freely attachable/detachable to/from the body 13. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は処置具を導入する鉗子口に取り付けられる内視鏡の鉗子栓、特にこの鉗子栓に通される処置具が動かないようにするための構成に関する。   The present invention relates to a forceps plug of an endoscope attached to a forceps port for introducing a treatment tool, and particularly to a configuration for preventing the treatment tool passed through the forceps plug from moving.

図６には、従来の内視鏡の構成が示されており、この内視鏡は、例えば固体撮像素子を備えた先端部１Ａ、湾曲部１Ｂ、そして操作部１Ｃ等を有する。この操作部１Ｃには、鉗子栓を有する鉗子口（処置具挿通チャンネル導入口）３が設けられ、この鉗子口３から先端部１Ａの先端面まで、処置具挿通チャンネル４が配設される。この処置具挿通チャンネル４には、被観察体内の流体物等を吸引するための吸引管５が接続されており、上記処置具挿通チャンネル４は吸引管としても機能するようになっている。また、上記操作部１Ｃには、湾曲操作ノブ６が設けられると共に、吸引ボタン７等が配置される。   FIG. 6 shows a configuration of a conventional endoscope, and the endoscope includes, for example, a distal end portion 1A provided with a solid-state imaging device, a bending portion 1B, an operation portion 1C, and the like. The operation portion 1C is provided with a forceps port (treatment tool insertion channel introduction port) 3 having a forceps plug, and a treatment tool insertion channel 4 is disposed from the forceps port 3 to the distal end surface of the distal end portion 1A. The treatment instrument insertion channel 4 is connected to a suction tube 5 for sucking fluids and the like in the observed body, and the treatment instrument insertion channel 4 also functions as a suction tube. The operation unit 1C is provided with a bending operation knob 6 and a suction button 7 and the like.

図７には、上記鉗子口部分の構成の一例が示されており、上述の鉗子口３に、弾性ゴム材質の鉗子栓８が取り付けられる。この鉗子栓８は、本体８ａの上部に蓋体８ｂを着脱自在にする構成とされ、この本体８ａの中心部に処置具を通すことのできる直線状の第１スリットＳ１が形成され、上記蓋体８ｂの中心部にも同様の第２スリットＳ２が形成されている。 FIG. 7 shows an example of the configuration of the forceps opening portion, and a forceps stopper 8 made of an elastic rubber material is attached to the forceps opening 3 described above. The forceps plug 8 is configured to detachably lid 8b at the top of the body 8a, the first slit S 1 straight capable of passing the treatment instrument in the center of the main body 8a are formed, the the second slit S 2 similar to the central portion of the lid 8b are formed.

このような鉗子栓によれば、上記スリットＳ１，Ｓ２を押し開けながら、処置具を処置具挿通チャンネル４内へ導入することができ、この処置具は内視鏡の先端部１Ａから被観察体内へ導かれることにより、各種の処置が可能となる。また、処置具を抜いて取り外した時には、スリットＳ１，Ｓ２が閉じることで、処置具挿通チャンネル４内の密閉性が維持され、上記吸引ボタン７の操作によって、処置具挿通チャンネル４を介した吸引が可能になる。 According to such a forceps plug, the treatment tool can be introduced into the treatment tool insertion channel 4 while pushing open the slits S 1 and S 2 , and the treatment tool can be introduced from the distal end portion 1A of the endoscope. Various treatments are possible by being guided into the observation body. Further, when the treatment tool is pulled out and removed, the slits S 1 and S 2 are closed, so that the sealing property in the treatment tool insertion channel 4 is maintained, and the operation of the suction button 7 causes the treatment tool insertion channel 4 to pass through. Suction is possible.

そして、従来では、上記の鉗子栓を介して挿入される処置具を固定することが行われており、例えば下記特許文献１の内視鏡の処置具固定機構では、処置具挿通チャンネルの入口の処置具挿入口金の側壁部に、切り欠き孔を形成し、この切り欠き孔から内部へ向けてブレーキ部材を配置し、このブレーキ部材を処置具の側面に当接させることで、処置具を固定することができる。   Conventionally, the treatment instrument inserted through the forceps plug is fixed. For example, in the endoscope treatment instrument fixing mechanism disclosed in Patent Document 1, the entrance of the treatment instrument insertion channel is provided. A notch hole is formed in the side wall portion of the treatment instrument insertion base, a brake member is arranged inward from the notch hole, and the brake member is brought into contact with the side surface of the treatment instrument to fix the treatment instrument. can do.

また、下記特許文献２の内視鏡鉗子口用アダプタでは、鉗子口に設けられた鉗子栓に、管状のアダプタ連結部材を着脱自在に設け、このアダプタ連結部材は、内部に配置された弾性の処置具一体部材を押圧部材で密着固定することで、処置具の移動を規制するように構成し、またこのアダプタ連結部材の先端側に、処置具位置変更部材を着脱自在に設け、これによって処置具の位置を段階的に調整するものが開示されている。
特開２００７−７５４０５号公報 特開２００３−３８４２７号公報 In the endoscope forceps port adapter of Patent Document 2 below, a tubular adapter connection member is detachably provided on a forceps plug provided in the forceps port, and the adapter connection member is an elastic member disposed inside. The treatment instrument integrated member is tightly fixed by the pressing member to restrict the movement of the treatment instrument, and the treatment instrument position changing member is detachably provided on the distal end side of the adapter connecting member, thereby treating the treatment instrument. What adjusts the position of a tool in steps is disclosed.
JP 2007-75405 A JP 2003-38427 A

しかしながら、上記特許文献１の内視鏡の処置具固定機構では、ブレーキ部材を配置するために、切り欠き孔が形成された形状の処置具挿通管路を内視鏡の鉗子口部分に設ける必要があり、内視鏡の鉗子口部分を大幅に変更しなければならず、また構成が複雑になるというという問題がある。一方、上記特許文献２の内視鏡鉗子口用アダプタでは、構成が複雑であると共に、処置具位置変更部材を用いて処置具の挿入位置を段階的に調整することは可能であるが、所望の挿入位置への微調整ができないという問題がある。   However, in the endoscope treatment tool fixing mechanism disclosed in Patent Document 1, it is necessary to provide a treatment tool insertion conduit having a shape with a cutout hole in the forceps port portion of the endoscope in order to dispose the brake member. However, there is a problem that the forceps opening portion of the endoscope must be significantly changed and the configuration becomes complicated. On the other hand, the endoscope forceps port adapter of Patent Document 2 has a complicated configuration, and it is possible to adjust the insertion position of the treatment instrument step by step using the treatment instrument position changing member. There is a problem that fine adjustment to the insertion position cannot be performed.

本発明は上記問題点に鑑みてなされたものであり、その目的は、鉗子口部分の大幅な変更をすることなく、簡単な構成にて処置具を固定することができ、また処置具位置変更部材を用いることなく、処置具を所望の挿入位置で容易に固定することが可能となる内視鏡の鉗子栓を提供することにある。   The present invention has been made in view of the above-described problems, and the object thereof is to fix the treatment instrument with a simple configuration without significantly changing the forceps opening portion, and to change the position of the treatment instrument. An object of the present invention is to provide an endoscopic forceps plug that can easily fix a treatment instrument at a desired insertion position without using a member.

上記目的を達成するために、請求項１の発明に係る内視鏡の鉗子栓は、処置具を通す挿通路が形成された本体、及びこの本体の挿通路入口に着脱自在となる栓部を有する内視鏡の鉗子栓において、上記本体に連結部を介して一体的に形成され、外周から中心へ向けた切り欠き部（挟持部）が形成された弾性材料のブロック状（塊状）体からなり、上記本体挿通路に通された処置具を上記切り欠き部により挟んで該処置具を固定するためのストッパ部材を設けたことを特徴とする。
請求項２の発明は、上記ストッパ部材を上記本体又は該本体に装着の栓部に固定するために、凸部と凹部の結合形式の固定構造を設けたことを特徴とする。
請求項３の発明は、上記栓部を上記本体に固定するために、凸部と凹部の結合形式の固定構造を設けると共に、上記ストッパ部材に、上記固定構造の一方を設け、上記ストッパ部材を上記本体に固定できるようにしたことを特徴とする。
請求項４の発明は、上記本体の上部に形成した固定構造の一方を上記栓部の上部にも設け、上記本体と栓部の両方に対し上記ストッパ部材を選択的に固定できるようにしたことを特徴とする。 In order to achieve the above object, an endoscope forceps plug according to the invention of claim 1 includes a main body in which an insertion passage through which a treatment tool is passed is formed, and a plug portion that is detachable at the insertion passage inlet of the main body. In a forceps plug of an endoscope having a block-like (lumped) body of an elastic material that is integrally formed with the main body via a connecting portion and has a notch (clamping portion) from the outer periphery toward the center Thus, a stopper member is provided for fixing the treatment instrument by sandwiching the treatment instrument passed through the main body insertion passage by the notch portion.
According to a second aspect of the present invention, there is provided a fixing structure in which a convex portion and a concave portion are coupled in order to fix the stopper member to the main body or the plug portion attached to the main body.
According to a third aspect of the present invention, in order to fix the plug portion to the main body, a fixing structure of a combination of a convex portion and a concave portion is provided, and one of the fixing structures is provided on the stopper member, and the stopper member is provided. It can be fixed to the main body.
According to the invention of claim 4, one of the fixing structures formed on the upper portion of the main body is also provided on the upper portion of the plug portion so that the stopper member can be selectively fixed to both the main body and the plug portion. It is characterized by.

本発明の構成によれば、処置具は、蓋部を開けた状態の鉗子栓本体から又は蓋部を閉じた状態の蓋部から、鉗子口を介して処置具挿通チャンネル内へ挿入されるが、この処置具をストッパ部材の切り欠き部で挟み、このストッパ部材を本体又は蓋部の上部に当接して取り付ければ、処置具が少なくとも先端側へ移動しない固定状態にすることができる。   According to the configuration of the present invention, the treatment instrument is inserted into the treatment instrument insertion channel from the forceps plug main body with the lid opened or from the lid with the lid closed through the forceps opening. If the treatment tool is sandwiched between the notch portions of the stopper member and the stopper member is attached in contact with the upper portion of the main body or the lid portion, the treatment tool can be fixed at least so as not to move to the distal end side.

請求項２，３の構成によれば、上記切り欠き部で処置具を挟みながら、例えばストッパ部材の下側中央部に設けられた凸部又は凹部を、本体又は栓部の上側中央部に設けられた凹部又は凸部に嵌合・係止することで、ストッパ部材が本体又は栓部の上側に固定されることになり、この結果、処置具が設定した挿入位置で（挿抜方向において）移動しない固定状態となる。   According to the second and third aspects of the present invention, for example, the convex portion or the concave portion provided in the lower central portion of the stopper member is provided in the upper central portion of the main body or the plug portion while the treatment tool is sandwiched between the notches. The stopper member is fixed to the upper side of the main body or the plug portion by fitting and locking to the recessed portion or the protruding portion, and as a result, the treatment instrument moves at the set insertion position (in the insertion / extraction direction). Will not be fixed.

本発明の内視鏡の鉗子栓によれば、切り欠き部を形成した弾性材料のストッパ部材を鉗子栓本体に一体的に設けたので、内視鏡の鉗子口部分の大幅な変更、改造をすることなく、簡単な構成で、処置具を固定することができ、また、処置具位置変更部材を用いることなく、微調整が可能となり、処置具を所望の挿入位置で容易に固定することができるという効果がある。   According to the forceps plug of the endoscope of the present invention, since the stopper member of the elastic material having the cutout portion is integrally provided in the forceps plug body, the forceps port portion of the endoscope is greatly changed or modified. The treatment instrument can be fixed with a simple configuration without any need, and fine adjustment is possible without using the treatment instrument position changing member, and the treatment instrument can be easily fixed at a desired insertion position. There is an effect that can be done.

図１及び図２には、第１実施例に係る内視鏡の鉗子栓の構成が示されており、実施例の内視鏡は、図６で説明したものと同様となっている。図１に示されるように、鉗子口１０に、鉗子栓１２が取り付けられており、この鉗子栓１２は、弾性ゴム材料からなり、円柱状の本体１３とこの本体の上部に着脱自在に取り付けられる栓部（蓋部）１４を有している。即ち、図２に示されるように、鉗子栓１２の本体１３の下部には、円柱状空間の上に直径が大きい円板状空間を重ねてなる嵌合凹部１３ａが設けられ、この嵌合凹部１３ａを鉗子口１０の上部の円板状（フランジ状）凸部に嵌め入れることで、鉗子栓１２が鉗子口１０に取り付けられる。   FIGS. 1 and 2 show the configuration of the forceps plug of the endoscope according to the first embodiment. The endoscope of the embodiment is the same as that described in FIG. As shown in FIG. 1, a forceps plug 12 is attached to the forceps opening 10, and the forceps plug 12 is made of an elastic rubber material and is detachably attached to a cylindrical main body 13 and an upper portion of the main body. It has a plug part (lid part) 14. That is, as shown in FIG. 2, a fitting recess 13a is provided at the lower portion of the main body 13 of the forceps plug 12 by overlapping a disk-shaped space having a large diameter on a cylindrical space. The forceps plug 12 is attached to the forceps port 10 by fitting 13 a into a disk-shaped (flange-shaped) convex portion at the top of the forceps port 10.

また、上記本体１３の内部が処置具１６の挿通路となるが、この挿通路に処置具１６を密着状態で通すためのスリット１７が設けられ、そのスリット１７の上側に、円板状空間の上に逆円錐台形状空間を重ねてなる嵌合凹部１３ｂが形成される。一方、栓部１４は、本体１３に、連結部（帯状体の曲げ部）１８を介して一体に形成されており、この栓部１４の内側に、上記嵌合凹部１３ｂに嵌合する形状の円板状凸部（円錐台形の上に円板を重ねたものを下向きに形成したもの）１４ａが形成され、外側にも、円錐台形の上に該円錐台形上部よりも直径が大きい（外周が張り出す）円板を重ねてなる円板状凸部１４ｂが形成される。この栓部１４の凸部１４ａ，１４ｂの中央には、スリット１９が形成されており、このスリット１９は、通常では完全に閉じられて栓の役割をする一方、処置具１６を通過させることができるものである。   The inside of the main body 13 serves as an insertion path for the treatment instrument 16. A slit 17 for allowing the treatment instrument 16 to pass through the insertion path is provided in the insertion path, and a disk-shaped space is formed above the slit 17. A fitting recess 13b is formed by overlapping the inverted frustoconical space. On the other hand, the plug portion 14 is formed integrally with the main body 13 via a connecting portion (bending portion of the belt-like body) 18 and has a shape that fits into the fitting recess 13b inside the plug portion 14. A disc-shaped convex portion (a disc-shaped conical shape formed by stacking discs facing downward) 14a is formed, and the outer diameter is larger on the frustoconical shape than the upper portion of the frustoconical shape. A disk-like convex portion 14b is formed by overlapping the overhanging disks. A slit 19 is formed at the center of the convex portions 14a and 14b of the stopper portion 14, and the slit 19 is normally completely closed and functions as a stopper, while allowing the treatment instrument 16 to pass therethrough. It can be done.

そして、第１実施例では、上記本体１３に、帯状体の連結部２１を介してストッパ部材２２が設けられており、このストッパ部材２２は、鉗子栓１２と同じ弾性ゴム材料から円柱ブロック状に形成され、その下部に、上記栓部１４の円板状凸部１４ｂに嵌合する嵌合凹部２２ａが設けられる。即ち、この嵌合凹部２２ａは、円錐台形状空間の上に円板状空間を重ねた凹部となる。また、このストッパ部材２２には、円柱の外周から中心へ向けて長手方向（処置具挿抜方向）全体にわたって切り欠いた（スリットを入れた）もので、中心部に処置具１６の直径よりも小さな直径の円柱状中央空間部２４ａを有する切り欠き部（挟持部）２４が形成されており、この切り欠き部２４は、処置具１６の外周に密着して該処置具１６をしっかりと挟むことができるようになっている。上記中央空間２４ａは、必須のものではない。   In the first embodiment, the main body 13 is provided with a stopper member 22 via a belt-like connecting portion 21, and the stopper member 22 is formed in the shape of a cylindrical block from the same elastic rubber material as that of the forceps plug 12. A fitting recess 22a that is formed and is fitted to the disk-like convex portion 14b of the plug portion 14 is provided at the lower portion thereof. That is, the fitting recess 22a is a recess in which a disk-shaped space is superimposed on a truncated cone-shaped space. The stopper member 22 is notched (with a slit) in the entire length direction (treatment tool insertion / extraction direction) from the outer periphery to the center of the cylinder, and is smaller than the diameter of the treatment tool 16 at the center. A notch portion (clamping portion) 24 having a cylindrical central space portion 24 a having a diameter is formed, and the notch portion 24 can be in close contact with the outer periphery of the treatment instrument 16 to securely sandwich the treatment instrument 16. It can be done. The central space 24a is not essential.

第１実施例は以上の構成からなり、この例では、栓部１４を開けた状態で、本体１３のスリット１７を介して処置具１６を挿入することもできると共に、図１（Ａ），図２に示されるように、栓部１４を閉じた状態で、スリット１９、１７を介して処置具１６を鉗子口から処置具挿通チャンネル内へ挿入することができる。そして、処置具１６が所望の挿入位置にセットされた後、図１（Ｂ）に示されるように、ストッパ部材２２の切り欠き部２４で処置具１６を挟みながら、嵌合凹部２２ａを円板状凸部１４ｂに嵌め入れ、切り欠き部２４の中央空間部２４ａに処置具１６を配置する。この結果、ストッパ部材２２は処置具１６をしっかりと挟持することができ、これによって、処置具１６は挿抜方向に動かないように固定される。   The first embodiment has the above-described configuration. In this example, the treatment tool 16 can be inserted through the slit 17 of the main body 13 with the plug portion 14 opened, as shown in FIGS. As shown in FIG. 2, the treatment tool 16 can be inserted into the treatment tool insertion channel through the slits 19 and 17 through the slits 19 and 17 with the plug portion 14 closed. Then, after the treatment instrument 16 is set at a desired insertion position, the fitting recess 22a is disc-shaped while the treatment instrument 16 is sandwiched between the notches 24 of the stopper member 22, as shown in FIG. The treatment tool 16 is placed in the central space 24 a of the notch 24 by fitting into the convex portion 14 b. As a result, the stopper member 22 can firmly hold the treatment instrument 16, and thereby the treatment instrument 16 is fixed so as not to move in the insertion / removal direction.

このように、通常は鉗子栓１２だけに処置具１６が挿通された状態で処置具１６を操作し、処置具１６を挿抜方向における所定位置で固定したいときには、処置具１６を鉗子栓１２から抜き取ることなく、処置具１６の側方から切欠き部２４を嵌め込むだけの操作で簡単に処置具１６を固定することができる。   As described above, normally, when the treatment tool 16 is operated with the treatment tool 16 inserted only into the forceps plug 12 and the treatment tool 16 is to be fixed at a predetermined position in the insertion / removal direction, the treatment tool 16 is removed from the forceps plug 12. The treatment tool 16 can be easily fixed by an operation of merely fitting the notch 24 from the side of the treatment tool 16 without any problem.

なお、第１実施例では、円板状凸部１４ｂと嵌合凹部２２ａによって、ストッパ部材２２を固定するようにしたが、これらの固定構造を設けず、単にストッパ部材２２を栓部１４の上面に当接配置することで、処置具１６の挿入方向（先端へ向かう一方向）の動きのみを停止することもできる。   In the first embodiment, the stopper member 22 is fixed by the disc-like convex portion 14b and the fitting concave portion 22a. However, these stopper structures are not provided, and the stopper member 22 is simply attached to the upper surface of the plug portion 14. It is also possible to stop only the movement of the treatment instrument 16 in the insertion direction (one direction toward the distal end).

図３及び図４には、第２実施例に係る内視鏡の鉗子栓の構成が示されており、この第２実施例は、ストッパ部材を本体に着脱自在にしたものである。図３（Ａ），図４に示されるように、鉗子栓２６の本体１３は第１実施例の場合と同様であり、スリット１７、下部の嵌合凹部１３ａが設けられると共に、上部に、円板状空間の上に逆円錐台形状空間を重ねてなる嵌合凹部１３ｂが形成される。一方、この本体１３に対し連結部１８を介して栓部２７が一体形成され、この栓部２７の内側に、上記嵌合凹部１３ｂに嵌合する形状の円板状凸部２７ａが設けられると共に、この栓部２７の凸部２７ａの中央に、スリット２８が形成されている。なお、このスリット２８は必須のものではない。   3 and 4 show the configuration of the forceps plug of the endoscope according to the second embodiment. In the second embodiment, the stopper member is detachably attached to the main body. As shown in FIGS. 3A and 4, the main body 13 of the forceps plug 26 is the same as that of the first embodiment, and is provided with a slit 17 and a lower fitting recess 13a. A fitting recess 13b is formed by overlapping an inverted frustoconical space on the plate space. On the other hand, a plug portion 27 is formed integrally with the main body 13 via a connecting portion 18, and a disk-shaped convex portion 27 a having a shape that fits into the fitting concave portion 13 b is provided inside the plug portion 27. A slit 28 is formed in the center of the convex portion 27 a of the plug portion 27. The slit 28 is not essential.

そして、第２実施例では、上記本体１３に帯状体の連結部２１を介してストッパ部材３０が設けられ、このストッパ部材３０は、弾性ゴム材料からなる円柱ブロック状体の下部に、上記本体１３の嵌合凹部１３ｂに嵌合する円板状凸部３０ａが設けられる。この円板状凸部３０ａは、円板状凸部２７ａと同様に、逆円錐台形の下に該円錐台形下部よりも直径が大きい円板を重ねた形状とされる。また、このストッパ部材３０には、円柱の外周から中心へ向けて縦方向で切り欠き、中心部に処置具１６の直径よりも小さな直径の中央空間部３１ａを有する切り欠き部３１が形成されている。   And in 2nd Example, the stopper member 30 is provided in the said main body 13 via the connection part 21 of the strip | belt-shaped body, This stopper member 30 is the said main body 13 in the lower part of the cylindrical block-shaped body which consists of elastic rubber materials. The disc-shaped convex part 30a fitted to the fitting concave part 13b is provided. Similar to the disc-like convex portion 27a, the disc-like convex portion 30a has a shape in which a disc having a diameter larger than that of the lower portion of the frustoconical shape is stacked under the inverted truncated cone shape. Further, the stopper member 30 is formed with a cutout portion 31 having a central space portion 31a having a diameter smaller than the diameter of the treatment instrument 16 at the center portion, notched in the vertical direction from the outer periphery to the center of the cylinder. Yes.

第２実施例は以上の構成からなり、この例でも、栓部２７を開けた状態、栓部２７を閉じた状態の両方で、スリット１７、２８を介して処置具１６を鉗子口から処置具挿通チャンネル内へ挿入することができる。そして、この第２実施例では、栓部２７を開けた状態で、本体２３に対し処置具１６を挿入し、所望の位置にセットしたとき、図３（Ｂ）に示されるように、ストッパ部材３０の切り欠き部３１で処置具１６を挟みながら、円板状凸部３０ａを嵌合凹部１３ｂに嵌め入れ、切り欠き部３１の中央空間部３１ａに処置具１６を配置することで、ストッパ部材２２が処置具１６を挟持し、これによって、挿抜方向に動かないように処置具１６がしっかりと固定される。   The second embodiment has the above-described configuration. In this example as well, the treatment tool 16 can be removed from the forceps port through the slits 17 and 28 in both the opened state of the stopper portion 27 and the closed state of the stopper portion 27. It can be inserted into the insertion channel. And in this 2nd Example, when the treatment tool 16 is inserted with respect to the main body 23 in the state which opened the stopper part 27 and set to the desired position, as shown in FIG.3 (B), a stopper member The disc-shaped convex portion 30a is fitted into the fitting concave portion 13b while the treatment tool 16 is sandwiched between the notch portions 31 of the 30, and the treatment tool 16 is disposed in the central space portion 31a of the notch portion 31 to thereby provide a stopper member. 22 clamps the treatment tool 16, and thereby the treatment tool 16 is firmly fixed so as not to move in the insertion / extraction direction.

図５には、第３実施例の構成が示されており、この第３実施例は、ストッパ部材を本体と栓部の両方に着脱自在となるようにしたものである。この第３実施例の鉗子栓３２では、本体１３に連結部１８を介して一体形成された栓部３３において、内側に第２実施例の場合と同様の円板状凸部３３ａが設けられ、かつ外側に本体１３の嵌合凹部１３ｂと同一形状の嵌合凹部３３ｂが形成される。そして、連結部２１を介して配置されるストッパ部材３０は、第２実施例と同一のものであり、下部には、上記嵌合凹部１３ｂと３３ｂの両方に嵌合する円板状凸部３０ａが設けられている。   FIG. 5 shows the configuration of the third embodiment. In the third embodiment, the stopper member is detachably attached to both the main body and the plug portion. In the forceps plug 32 of the third embodiment, in the plug portion 33 integrally formed with the main body 13 via the connecting portion 18, a disk-like convex portion 33a similar to that of the second embodiment is provided inside, And the fitting recessed part 33b of the same shape as the fitting recessed part 13b of the main body 13 is formed in the outer side. And the stopper member 30 arrange | positioned via the connection part 21 is the same as that of 2nd Example, and the disk-shaped convex part 30a fitted to both the said fitting recessed parts 13b and 33b is provided in the lower part. Is provided.

このような第３実施例によれば、栓部３３を閉めたときと開けたときの両方で、ストッパ部材３０を使用できることになる。即ち、図５に示されるように、栓部３３を閉めたときは、挿通路に通した処置具１６に対し、円板状凸部３０ａを嵌合凹部３３ｂに嵌め入れることにより、ストッパ部材３０を栓部３３に取り付け、処置具１６の移動を規制することができる。一方、栓部３３を開けたときは、円板状凸部３０ａを嵌合凹部１３ｂに嵌め入れることにより、ストッパ部材３０を本体１３に取り付け、処置具１６の移動を規制することができる。   According to the third embodiment, the stopper member 30 can be used both when the stopper 33 is closed and when the stopper 33 is opened. That is, as shown in FIG. 5, when the stopper portion 33 is closed, the stopper 30 is inserted into the fitting recess 33b by inserting the disc-like protrusion 30a into the treatment instrument 16 passed through the insertion passage. Can be attached to the plug portion 33 to restrict the movement of the treatment instrument 16. On the other hand, when the stopper portion 33 is opened, the stopper 30 can be attached to the main body 13 and the movement of the treatment instrument 16 can be restricted by fitting the disc-like convex portion 30a into the fitting concave portion 13b.

上記第３実施例は、第１実施例の栓部１４とストッパ部材２２において、凸と凹の形状を逆にしたものとなるが、第２実施例（図４）においても、嵌合する凹凸形状を逆にし、本体１３の上部に円板状凸部を設け、栓部２７の内側及びストッパ部材３０の下部に、嵌合凹部を形成するように構成することもできる。   In the third embodiment, the convex portion and the concave shape are reversed in the stopper portion 14 and the stopper member 22 of the first embodiment. The shape may be reversed, and a disc-like convex portion may be provided on the upper portion of the main body 13, and a fitting concave portion may be formed on the inner side of the stopper portion 27 and the lower portion of the stopper member 30.

また、上記各実施例では、ストッパ部材２２，３０を円柱状ブロック体としたが、このストッパ部材２２，３０として、角柱状、円球状等のブロック体を用いるようにしてもよい。更に、ストッパ部材の固定構造を鉗子栓の中央部に配置するようにしたが、処置具１６の挿通路を含まない鉗子栓の外周側部とストッパ部材下部の外周側部に固定構造を設けるようにしてもよい。   In each of the above embodiments, the stopper members 22 and 30 are cylindrical block bodies. However, the stopper members 22 and 30 may be prismatic or spherical block bodies. Furthermore, the stopper member fixing structure is arranged in the central portion of the forceps plug, but the fixing structure is provided on the outer peripheral side portion of the forceps plug not including the insertion path of the treatment instrument 16 and the outer peripheral side portion of the lower portion of the stopper member. It may be.

本発明の第１実施例に係る内視鏡の鉗子栓の構成を示し、図（Ａ）はストッパ部材装着前の斜視図、図（Ｂ）はストッパ部材装着後の斜視図である。The structure of the forceps plug of the endoscope which concerns on 1st Example of this invention is shown, A figure (A) is a perspective view before stopper member mounting | wearing, and a figure (B) is a perspective view after stopper member mounting | wearing. 第１実施例の鉗子栓の断面図である。It is sectional drawing of the forceps stopper of 1st Example. 第２実施例の鉗子栓の構成を示し、図（Ａ）はストッパ部材装着前の斜視図、図（Ｂ）はストッパ部材装着後の斜視図である。The structure of the forceps stopper of 2nd Example is shown, A figure (A) is a perspective view before stopper member mounting | wearing, and a figure (B) is a perspective view after stopper member mounting | wearing. 第２実施例の鉗子栓の断面図である。It is sectional drawing of the forceps stopper of 2nd Example. 第３実施例の鉗子栓の構成を示す断面図である。It is sectional drawing which shows the structure of the forceps stopper of 3rd Example. 従来の内視鏡の構成を示す図である。It is a figure which shows the structure of the conventional endoscope. 従来における内視鏡の鉗子栓の構成を示す断面図である。It is sectional drawing which shows the structure of the forceps stopper of the endoscope in the past.

符号の説明Explanation of symbols

３，１０…鉗子口、 ８，１２，２６，３２…鉗子栓、
８ａ，１３…鉗子栓本体、 ８ｂ，１４，２７，３３…栓部、
１３ａ，１３ｂ，２２ａ，３３ｂ…嵌合凹部、
１４ａ，１４ｂ，２７ａ，３０ａ，３３ａ…円板状凸部、
１６…処置具、 ２２，３０…ストッパ部材、
２４，３１…切り欠き部。 3, 10 ... forceps opening, 8, 12, 26, 32 ... forceps plug,
8a, 13 ... forceps plug body, 8b, 14, 27, 33 ... plug part,
13a, 13b, 22a, 33b ... fitting recess,
14a, 14b, 27a, 30a, 33a ... disk-shaped convex part,
16 ... treatment tool, 22, 30 ... stopper member,
24, 31 ... Notches.

Claims (4)

処置具を通す挿通路が形成された本体、及びこの本体の挿通路入口に着脱自在となる栓部を有する内視鏡の鉗子栓において、
上記本体に連結部を介して一体的に形成され、外周から中心へ向けた切り欠き部が形成された弾性材料のブロック状体からなり、上記本体挿通路に通された処置具を上記切り欠き部により挟んで該処置具を固定するためのストッパ部材を設けたことを特徴とする内視鏡の鉗子栓。 In a forceps plug of an endoscope having a main body in which an insertion passage for passing a treatment tool is formed and a plug portion that is detachable at an insertion passage entrance of the main body,
A treatment tool passed through the main body insertion passage is formed by a block-like body made of an elastic material, which is integrally formed with the main body via a connecting portion, and has a notch from the outer periphery toward the center. A forceps plug for an endoscope, comprising a stopper member for fixing the treatment tool sandwiched between portions. 上記ストッパ部材を上記本体又は該本体に装着の栓部に固定するために、凸部と凹部の結合形式の固定構造を設けたことを特徴とする請求項１記載の内視鏡の鉗子栓。   The endoscopic forceps plug according to claim 1, wherein a fixing structure of a combination of a convex portion and a concave portion is provided in order to fix the stopper member to the main body or a plug portion attached to the main body. 上記栓部を上記本体に固定するために、凸部と凹部の結合形式の固定構造を設けると共に、上記ストッパ部材に、上記固定構造の一方を設け、上記ストッパ部材を上記本体に固定できるようにしたことを特徴とする請求項２記載の内視鏡の鉗子栓。   In order to fix the stopper portion to the main body, a fixing structure in which a convex portion and a concave portion are combined is provided, and one of the fixing structures is provided on the stopper member so that the stopper member can be fixed to the main body. The endoscopic forceps plug according to claim 2, wherein: 上記本体の上部に形成した固定構造の一方を上記栓部の上部にも設け、上記本体と栓部の両方に対し上記ストッパ部材を選択的に固定できるようにしたことを特徴とする請求項３記載の内視鏡の鉗子栓。   4. One of the fixing structures formed on the upper portion of the main body is also provided on the upper portion of the plug portion so that the stopper member can be selectively fixed to both the main body and the plug portion. Endoscopic forceps plug according to the description.
JP2008123063A 2008-05-09 2008-05-09 Forceps plug for endoscope Pending JP2009268777A (en)

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US20130053637A1 (en) * 2011-08-29 2013-02-28 Kenji Yamane Forceps plug for endoscope
EP2574270A1 (en) * 2011-09-27 2013-04-03 Fujifilm Corporation Closure device for end opening and endoscope
EP2574272A1 (en) 2011-09-30 2013-04-03 Fujifilm Corporation Endoscope forceps plug
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EP2564758A1 (en) * 2011-08-29 2013-03-06 Fujifilm Corporation Forceps plug for endoscope
JP2013046657A (en) * 2011-08-29 2013-03-07 Fujifilm Corp Forceps plug for endoscope
US20130053637A1 (en) * 2011-08-29 2013-02-28 Kenji Yamane Forceps plug for endoscope
EP2574270A1 (en) * 2011-09-27 2013-04-03 Fujifilm Corporation Closure device for end opening and endoscope
CN103006163A (en) * 2011-09-27 2013-04-03 富士胶片株式会社 Closure device for end opening and endoscope
JP2013070763A (en) * 2011-09-27 2013-04-22 Fujifilm Corp Plug body for endoscope and endoscope including the same
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US11064870B2 (en) 2017-08-11 2021-07-20 Boston Scientific Limited Biopsy cap for use with endoscope
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US11478233B2 (en) 2018-11-02 2022-10-25 Boston Scientific Scimed, Inc. Devices, systems, and methods for providing sealable access to a working channel
US11690499B2 (en) 2018-11-02 2023-07-04 Boston Scientific Limited Biopsy cap and biopsy cap housing
US11771307B2 (en) 2018-11-02 2023-10-03 Boston Scientific Limited Internal seal for biopsy cap
US12070187B2 (en) 2018-11-02 2024-08-27 Boston Scientific Medical Device Limited Devices, systems, and methods for providing sealable access to a working channel
US12256897B2 (en) 2018-11-02 2025-03-25 Boston Scientific Medical Device Limited Biopsy cap and biopsy cap housing
US12256895B2 (en) 2018-11-02 2025-03-25 Boston Scientific Medical Device Limited Attachments for endoscopes
US12342987B2 (en) 2018-11-02 2025-07-01 Boston Scientific Limited Devices, systems, and methods for providing sealable access to a working channel

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