JP4986223B2 - Endoscope tip cap and endoscope - Google Patents
Endoscope tip cap and endoscope Download PDFInfo
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- JP4986223B2 JP4986223B2 JP2007056542A JP2007056542A JP4986223B2 JP 4986223 B2 JP4986223 B2 JP 4986223B2 JP 2007056542 A JP2007056542 A JP 2007056542A JP 2007056542 A JP2007056542 A JP 2007056542A JP 4986223 B2 JP4986223 B2 JP 4986223B2
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本発明は、内視鏡の挿入部の先端部に着脱可能な内視鏡用先端キャップ及び内視鏡に関する。 The present invention relates to an endoscope distal end cap and an endoscope that can be attached to and detached from the distal end portion of an insertion portion of an endoscope.
医療用内視鏡は一般的に、操作部から延びる挿入部の先端面に対物レンズ、送水穴、送気穴、及び処置具挿通口を具備している（処置具挿通口は吸引穴を兼ねている）。
このような医療用内視鏡で出血している患部を観察する場合、従来は挿入部の先端面の送水穴から患部付近に送水し、この水圧で血液を洗い流していた。このようすれば、術者は対物レンズを通して患部を明瞭に観察できるようになるので、処置具挿通口から突出させた処置具によって患部を正確に処置できる。
In the case of observing an affected part bleeding with such a medical endoscope, conventionally, water is supplied from the water supply hole on the distal end surface of the insertion part to the vicinity of the affected part, and the blood is washed away with this water pressure. In this way, the surgeon can clearly observe the affected area through the objective lens, and thus the affected area can be accurately treated with the treatment tool protruding from the treatment tool insertion port.
しかし、患部周囲の体腔が狭い場合に水を利用して出血を除去すると、体腔内に水が溜まってしまう。そのため体腔が狭い場合には、術者は患部の処置を行いながら体腔に溜まった水を挿入部先端の吸引穴（処置具挿通口）から頻繁に吸引しなければならなかった。 However, if the body cavity around the affected area is narrow and bleeding is removed using water, water accumulates in the body cavity. For this reason, when the body cavity is narrow, the surgeon has to frequently suck water accumulated in the body cavity from the suction hole (treatment tool insertion port) at the distal end of the insertion portion while treating the affected part.
本発明は、水の吸引等の煩わしい作業を要することなく、患部からの出血を簡単に除去できる内視鏡用先端キャップ及び内視鏡を提供することを目的とする。 An object of the present invention is to provide an endoscope distal end cap and an endoscope that can easily remove bleeding from an affected area without requiring troublesome work such as water suction.
本発明の内視鏡用先端キャップは、挿入部の先端部に送気穴及び処置具挿通穴を有する内視鏡の該先端部に着脱可能なキャップ本体と、該キャップ本体に設けた開口部を気密状態で塞ぎ、かつ該キャップ本体を上記先端部に装着したときに該先端部に設けた対物レンズと対向する圧接部を有する弾性材料からなる透光性膜材と、上記圧接部に設けた、上記キャップ本体を上記先端部に装着したときに、上記処置具挿通穴の直前に位置させることが可能な指標と、を備え、上記圧接部は、自由状態においては扁平をなし、上記送気穴から排出された空気圧によって弾性変形可能で、かつ、上記処置具挿通穴から出没可能な処置具によって破ることが可能であるとを特徴としている。 An endoscope tip cap according to the present invention includes a cap body detachably attached to the distal end portion of an endoscope having an air supply hole and a treatment instrument insertion hole at the distal end portion of the insertion portion , and an opening provided in the cap body. A transparent film material made of an elastic material having a pressure contact portion facing the objective lens provided at the tip when the cap body is mounted on the tip, and provided at the pressure contact and, the cap body when mounted on the distal end portion, and a indicator that can be positioned immediately before the treatment instrument insertion hole, the pressure contact portion is in the form a flat in a free state, the feed It is characterized in that it can be elastically deformed by the air pressure discharged from the air hole, and can be torn by a treatment tool that can protrude and retract from the treatment tool insertion hole .
上記キャップ本体が上記先端部に気密状態で装着可能であるのが好ましい。 It is preferable that the cap body can be attached to the tip portion in an airtight state.
上記キャップ本体が弾性材料からなり、かつ自由状態における径が上記先端部より小径の筒状であるのが好ましい。 It is preferable that the cap body is made of an elastic material and has a cylindrical shape whose diameter in a free state is smaller than that of the tip portion.
上記透光性膜材は、例えば無色透明とすることができる。 The translucent film material can be colorless and transparent, for example.
本発明の内視鏡は、先端部に対物レンズ、送気穴、及び、処置具挿通穴を備える挿入部と、該挿入部の上記先端部に着脱可能なキャップ本体、及び、該キャップ本体に設けた開口部を気密状態で塞ぎ、かつ該キャップ本体を上記先端部に装着したときに上記対物レンズと対向する圧接部を有する弾性材料からなる透光性膜材と、を有する内視鏡用先端キャップ、とを備え、上記圧接部に、上記キャップ本体を上記先端部に装着したときに、上記処置具挿通穴の直前に位置させることが可能な指標を設け、上記圧接部は、自由状態においては扁平をなし、上記送気穴から排出された空気圧によって弾性変形可能で、かつ、上記処置具挿通穴から出没可能な処置具によって破ることが可能であることを特徴としている。 An endoscope according to the present invention includes an insertion portion including an objective lens, an air supply hole, and a treatment instrument insertion hole at a distal end portion, a cap main body that can be attached to and detached from the distal end portion of the insertion portion, and the cap main body. A transparent membrane material made of an elastic material that closes the provided opening in an airtight state and has a pressure contact portion facing the objective lens when the cap body is mounted on the tip portion; A distal end cap, and the pressure contact portion is provided with an index that can be positioned immediately before the treatment instrument insertion hole when the cap body is mounted on the distal end portion. Is flat, can be elastically deformed by the air pressure discharged from the air supply hole, and can be torn by a treatment tool that can protrude and retract from the treatment tool insertion hole .
請求項１及び請求項５の発明によれば、内視鏡の挿入部の先端部に本発明の内視鏡用先端キャップを装着し、その圧接部（透光性膜材）を出血中の患部に圧接すると、その圧力により患部から流れ出た血液が圧接部（透光性膜材）の外側に押し出される。従って、術者は対物レンズが透光性膜材を通して観察した患部を明瞭に視認でき、患部を容易に処置することが可能になる。
圧接部（透光性膜材）の弾力を利用することにより血液をより簡単に除去できるようになる。
さらに、術者が誤ってキャップ本体内に大量の空気を注入したとしても透光性膜材は簡単には破れないので、空気圧を利用した作業をより簡単に行えるようになる。
空気圧によって圧接部（透光性膜材）を膨張させることが可能になる。
圧接部（透光性膜材）を患部に押しつけた状態で、この圧接部（透光性膜材）を処置具により破くことができるようになる。従って、内視鏡用先端キャップを挿入部先端から取り外すことなく、処置具により患部を処置できるようになる。
術者は指標を頼りに処置具挿通穴の位置を容易に把握できるので、処置具の操作が容易になる。
According to the first and fifth aspects of the present invention, the distal end cap for an endoscope of the present invention is attached to the distal end portion of the insertion portion of the endoscope, and the pressure contact portion (translucent membrane material) is bleeding. When pressed against the affected area, the blood flowing out from the affected area is pushed out of the pressed area (translucent film material) by the pressure . Therefore, the surgeon can clearly see the affected part observed by the objective lens through the translucent film material, and can easily treat the affected part.
By using the elasticity of the pressure contact portion (translucent membrane material), blood can be removed more easily.
Furthermore, even if an operator mistakenly injects a large amount of air into the cap body, the translucent film material cannot be easily broken, so that the operation using air pressure can be performed more easily.
The pressure contact portion (translucent film material) can be expanded by air pressure.
In a state where the pressure contact part (translucent film material) is pressed against the affected part, the pressure contact part (translucent film material) can be broken by the treatment instrument. Accordingly, the affected part can be treated with the treatment tool without removing the endoscope distal end cap from the distal end of the insertion part.
Since the surgeon can easily grasp the position of the treatment tool insertion hole by using the index, the operation of the treatment tool becomes easy.
請求項２のように構成すれば、挿入部の先端部の送気穴からの空気圧を利用して透光性膜材を患部側に膨張させることが出来る。従って、膨張した透光性膜材を患部に押しつければ、患部の出血をより確実に除去することが可能である。 If comprised like Claim 2, the translucent film | membrane material can be expanded to the affected part side using the air pressure from the air supply hole of the front-end | tip part of an insertion part. Therefore, if the expanded translucent membrane material is pressed against the affected part, bleeding of the affected part can be more reliably removed.
請求項３のように構成すれば、キャップ本体を挿入部の先端部に装着した際に、キャップ本体と挿入部の先端部の間が確実に気密状態となる。従って、空気圧を利用して透光性膜材を膨張させる場合は、透光性膜材を容易に膨張させられるようになる。 If comprised like Claim 3, when a cap main body is mounted | worn with the front-end | tip part of an insertion part, between a cap main body and the front-end | tip part of an insertion part will be in an airtight state reliably. Therefore, when the translucent film material is expanded using air pressure, the translucent film material can be easily expanded.
請求項４のように構成すれば、患部をより明瞭に視認できる。 If it comprises like Claim 4 , an affected part can be visually recognized more clearly.
以下、本発明の一実施形態について添付図面を参照しながら説明する。
図１に示すように、本実施形態の内視鏡１０は医療用の電子内視鏡であり、操作者が把持する操作部１１と、操作部１１から前方に延出する可撓性のある挿入部１２と、操作部１１から挿入部１２と反対側に延び図示を省略したプロセッサに接続されるユニバーサルチューブ１３と、を備えている。挿入部１２の先端部１４は円柱形状をなす硬質部材から構成してあり、その先端面１５には、図２に示すように、対物レンズ１６と、一対の照明用レンズ１７と、送気穴１８と、送水穴１９と、処置具挿通穴２０とが設けてある。さらに、図４から図６に示すように、先端部１４の周面には環状突部２１が一体的に突設してある。図示するように、この環状突部２１は、その前方部分及び後方部分（先端部１４）より大径である。
Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.
As shown in FIG. 1, an endoscope 10 according to the present embodiment is a medical electronic endoscope, and has an operation unit 11 held by an operator and a flexible extending forward from the operation unit 11. An insertion portion 12 and a universal tube 13 extending from the operation portion 11 to the opposite side of the insertion portion 12 and connected to a processor (not shown) are provided. The distal end portion 14 of the insertion portion 12 is composed of a cylindrical hard member. As shown in FIG. 2, the distal end surface 15 has an objective lens 16, a pair of illumination lenses 17, and an air supply hole. 18, a water supply hole 19, and a treatment instrument insertion hole 20 are provided. Further, as shown in FIGS. 4 to 6, an annular protrusion 21 is integrally projected on the peripheral surface of the tip portion 14. As shown in the figure, the annular protrusion 21 has a larger diameter than the front part and the rear part (tip part 14).
先端部１４の内部には対物レンズ１６の直後に位置する撮像素子（図示略）が設けてあり、この撮像素子から延びる信号線（図示略）は、挿入部１２、操作部１１及びユニバーサルチューブ１３を通って上記プロセッサと接続している。従って、対物レンズ１６で観察された像は、撮像素子による撮像及びプロセッサによる画像処理を経た後にプロセッサに接続するモニタ（図示略）に映し出される。 An image pickup device (not shown) located immediately after the objective lens 16 is provided inside the distal end portion 14, and signal lines (not shown) extending from the image pickup device are the insertion portion 12, the operation portion 11, and the universal tube 13. And is connected to the processor. Therefore, the image observed by the objective lens 16 is displayed on a monitor (not shown) connected to the processor after being imaged by the image sensor and image processing by the processor.
操作部１１には送気送水ボタン２２が出没可能に突設してある。この送気送水ボタン２２は、操作部１１内に埋設したシリンダ（図示略）にスライド可能に支持されている。送気送水ボタン２２には、その一端が送気送水ボタン２２の上端面において開口し他端がシリンダ内において開口するリーク穴（図示略）が穿設してある。挿入部１２、操作部１１及びユニバーサルチューブ１３の内部には、その前端が送気穴１８と連通し他端が圧縮空気源（図示略）に接続する送気用管路（図示略）と、その前端が送水穴１９と連通し他端が送水源（図示略）と連通する送水用管路が設けてあり、これら送気用管路及び送水用管路の中間部は上記シリンダと連通している。従って、術者が送気送水ボタン２２のリーク穴を指で塞ぐと、圧縮空気源の空気が送気用通路を介して送気穴１８から排出され、術者がリーク穴を指で塞ぎながら送気送水ボタン２２を操作部１１内に押し込むと、送水源の水が送水用通路を介して送水穴１９から排出される。
処置具挿通穴２０は、挿入部１２内に配設された処置具用管路を通じて内視鏡１０に設けた鉗子口２３と連通している。
An air / water supply button 22 protrudes from the operation unit 11 so as to appear and disappear. The air / water supply button 22 is slidably supported by a cylinder (not shown) embedded in the operation unit 11. The air / water button 22 has a leak hole (not shown) having one end opened at the upper end surface of the air / water button 22 and the other end opened in the cylinder. Inside the insertion portion 12, the operation portion 11 and the universal tube 13, an air supply conduit (not shown) whose front end communicates with the air supply hole 18 and whose other end is connected to a compressed air source (not shown); A water supply conduit whose front end communicates with the water supply hole 19 and the other end communicates with a water supply source (not shown) is provided, and an intermediate portion of the air supply conduit and the water supply conduit communicates with the cylinder. ing. Accordingly, when the operator closes the leak hole of the air / water supply button 22 with a finger, the air of the compressed air source is discharged from the air supply hole 18 through the air supply passage, and the operator closes the leak hole with the finger. When the air / water supply button 22 is pushed into the operation unit 11, the water of the water supply source is discharged from the water supply hole 19 through the water supply passage.
The treatment instrument insertion hole 20 communicates with a forceps port 23 provided in the endoscope 10 through a treatment instrument conduit disposed in the insertion portion 12.
先端部１４に着脱可能な先端キャップ３０は、前後両面が開口する円筒形状のキャップ本体３１と、キャップ本体３１の前面開口部を気密状態で塞ぐ透光性膜材３５とからなる。
キャップ本体３１は硬質ゴム製であり、その内径は自由状態において先端部１４（及び環状突部２１）より僅かに小径である。キャップ本体３１の外周面の前端部には環状凹部３２が凹設してあり、環状凹部３２の後端部にはその前方部分よりさらに深く凹設された環状の係合凹部３３が形成してある。
透光性膜材３５は、正面視円形かつ無色透明の弾性材料（例えば、ポリエチレン、ポリプロピレン、透明シリコン樹脂）からなり、その肉厚はキャップ本体３１より薄い。透光性膜材３５は、その中央部を構成する正面視円形の圧接部３６と、圧接部３６の外周側に位置し環状凹部３２に気密状態で被せられる外周部３７と、外周部３７の周縁に形成した係合凹部３３に気密状態で嵌合固定される環状の係合突部３８とを有している。図８に示すように、圧接部３６には指標３９が印刷してある。さらに、透光性膜材３５をキャップ本体３１に固定すると、図４に示すように圧接部３６は扁平となる。
The distal end cap 30 that can be attached to and detached from the distal end portion 14 includes a cylindrical cap body 31 having both front and rear openings, and a translucent film material 35 that closes the front opening of the cap body 31 in an airtight state.
The cap body 31 is made of hard rubber, and its inner diameter is slightly smaller than that of the distal end portion 14 (and the annular protrusion 21) in a free state. An annular recess 32 is formed in the front end portion of the outer peripheral surface of the cap body 31, and an annular engagement recess 33 is formed in the rear end portion of the annular recess 32 so as to be deeper than the front portion thereof. is there.
The translucent film material 35 is made of an elastic material that is circular and colorless and transparent when viewed from the front (for example, polyethylene, polypropylene, or transparent silicon resin), and is thinner than the cap body 31. The translucent film material 35 includes a circular pressure contact portion 36 that forms a central portion of the translucent film material 35, an outer peripheral portion 37 that is positioned on the outer peripheral side of the pressure contact portion 36 and is covered in an airtight manner on the annular recess 32, It has an annular engagement protrusion 38 that is fitted and fixed in an airtight manner to an engagement recess 33 formed on the periphery. As shown in FIG. 8, an index 39 is printed on the pressure contact portion 36. Further, when the translucent film material 35 is fixed to the cap body 31, the press contact portion 36 becomes flat as shown in FIG.
次に内視鏡１０と先端キャップ３０の使用方法について、図４から図８を利用して説明する。
まず、図４に示すように内視鏡１０の挿入部１２の先端部１４に先端キャップ３０を装着する。すると、圧接部３６が対物レンズ１６と対向するので、キャップ本体３１の先端部１４に対する相対回転位置を調整し、圧接部３６に印刷した指標３９を処置具挿通穴２０の直前に位置させる（対向させる）。先端キャップ３０を装着すると、自由状態においては先端部１４（及び環状突部２１）より小径であったキャップ本体３１の後半部が拡径方向に弾性変形するので、キャップ本体３１の内周面が先端部１４及び環状突部２１の外周面に気密状態で圧接する。
このようにして先端キャップ３０を先端部１４に装着したら、挿入部１２を患者の体腔Ａ内に挿入し、モニタに映し出された対物レンズ１６の観察像を見ながら、先端キャップ３０及び先端部１４を体腔Ａ（体腔壁）に出来た患部Ｂの近傍に位置させる。先端キャップ３０及び先端部１４が患部Ｂの近傍に位置すると、図８に示すようにモニタに透明な圧接部３６を通して観察された患部Ｂ及び患部Ｂからの血液Ｃが映し出される。
次いで、送気送水ボタン２２のリーク穴を指で塞いで、送気穴１８から先端キャップ３０内に圧縮空気源で発生した空気を排出する。すると、この排出された空気の圧力により圧接部３６が膨張する（図５参照）。圧接部３６が適度に膨張したら送気送水ボタン２２のリーク穴から指を離し（送気穴１８からの空気の排出を停止し）、圧接部３６を図５の状態に保持する。
Next, how to use the endoscope 10 and the distal end cap 30 will be described with reference to FIGS.
First, as shown in FIG. 4, the distal end cap 30 is attached to the distal end portion 14 of the insertion portion 12 of the endoscope 10. Then, since the pressure contact portion 36 faces the objective lens 16, the relative rotation position of the cap body 31 with respect to the distal end portion 14 is adjusted, and the index 39 printed on the pressure contact portion 36 is positioned immediately before the treatment instrument insertion hole 20 (opposed). ) When the distal end cap 30 is mounted, the rear half of the cap body 31 that is smaller in diameter than the distal end portion 14 (and the annular protrusion 21) in the free state is elastically deformed in the diameter-expanding direction. The outer peripheral surface of the tip portion 14 and the annular protrusion 21 is pressed in an airtight state.
When the distal end cap 30 is attached to the distal end portion 14 in this manner, the insertion portion 12 is inserted into the body cavity A of the patient, and the distal end cap 30 and the distal end portion 14 are viewed while viewing the observation image of the objective lens 16 projected on the monitor. Is located in the vicinity of the affected part B formed in the body cavity A (body cavity wall). When the distal end cap 30 and the distal end portion 14 are located in the vicinity of the affected area B, the affected area B and the blood C from the affected area B, which are observed through the transparent pressure contact portion 36, are displayed on the monitor as shown in FIG.
Next, the leak hole of the air / water supply button 22 is closed with a finger, and the air generated by the compressed air source is discharged from the air supply hole 18 into the tip cap 30. Then, the pressure contact portion 36 expands due to the pressure of the discharged air (see FIG. 5). When the pressure contact portion 36 is appropriately expanded, the finger is removed from the leak hole of the air / water supply button 22 (the discharge of air from the air supply hole 18 is stopped), and the pressure contact portion 36 is held in the state shown in FIG.
次いで、図６に示すように、内視鏡１０を操作しながら膨張した圧接部３６を患部Ｂ及び血液Ｃに圧接させる。すると、圧接部３６により血液Ｃが圧接部３６の外周側に押し出され、モニタに映し出された画像から血液Ｃが無くなるので、術者はモニタを通じて患部Ｂを明瞭に視認可能となる。
このように患部Ｂが視認出来る状態になったら、指標３９を出血Ｃにあわせるように内視鏡１０を操作した後、鉗子口２３から内視鏡１０の処置具用管路に処置具４０を挿入し、その先端部に形成された一対の開閉爪４１を処置具挿通穴２０から先端キャップ３０内に突出させる。さらに、処置具４０の基端部に設けられた操作部（図示略）を操作して、開閉爪４１によって圧接部３６の患部Ｂに圧接している部分を破る。すると、図７に示すようにこの破られた部分から開閉爪４１にて出血部Ｃ（患部Ｂ）を把持し、開閉爪４１を内視鏡１０側に引きこんだ後、処置具４０に接続された高周波発生装置（不図示）から把持した出血部Ｃ（患部Ｂ）に通電することにより出血部Ｃを止血する。
最後に、体腔Ａ内に挿入した挿入部１２を処置具４０と一緒に体腔Ａから患者の体外に引き抜く。さらに、内視鏡１０の先端部１４からキャップ本体３１を弾性変形させながら取り外し、取り外した先端キャップ３０を廃棄処分する。
Next, as illustrated in FIG. 6, the expanded pressure contact portion 36 is brought into pressure contact with the affected area B and blood C while operating the endoscope 10. Then, the blood C is pushed out to the outer peripheral side of the pressure contact portion 36 by the pressure contact portion 36, and the blood C disappears from the image projected on the monitor, so that the operator can clearly see the affected portion B through the monitor.
When the diseased part B becomes visible in this way, the endoscope 10 is operated so that the index 39 matches the bleeding C, and then the treatment tool 40 is inserted from the forceps port 23 to the treatment tool conduit of the endoscope 10. The pair of opening / closing claws 41 formed at the distal end portion are inserted into the distal end cap 30 from the treatment instrument insertion hole 20. Furthermore, the operation part (not shown) provided in the base end part of the treatment tool 40 is operated, and the part press-contacted to the affected part B of the press-contact part 36 by the opening-and-closing claw 41 is broken. Then, as shown in FIG. 7, the bleeding part C (affected part B) is gripped by the opening / closing nail 41 from the broken portion, and the opening / closing nail 41 is pulled to the endoscope 10 side and then connected to the treatment instrument 40. The bleeding part C is stopped by energizing the bleeding part C (affected part B) gripped from the high-frequency generator (not shown).
Finally, the insertion section 12 inserted into the body cavity A is pulled out of the body cavity A together with the treatment tool 40 from the patient's body. Further, the cap body 31 is removed from the distal end portion 14 of the endoscope 10 while being elastically deformed, and the removed distal end cap 30 is discarded.
以上説明したように本実施形態では空気圧及び透光性膜材３５の弾力を利用することにより患部Ｂ（出血部Ｃ）を簡単かつ確実に処置できる。従って術者は、水を利用する従来の方法により処置を行う場合に比べて、患部Ｂの処置を容易に行うことができる。
また、本実施形態の透光性膜材３５は弾性材料からなるので、空気圧によって膨張させるのが容易である。しかも、仮に術者が先端キャップ３０内に大量の空気を注入し、その結果、先端キャップ３０内の気圧が過大になったとしても、弾性材料からなる透光性膜材３５は簡単に破れることはない。
しかも、圧接部３６は処置具４０の開閉爪４１によって簡単に破ることができるので、先端キャップ３０を先端部１４から取り外すことなく、処置具４０によって患部Ｂを処置することが可能である。
さらに、圧接部３６に指標３９をプリントしたので、術者はモニタを見ることにより、モニタには映し出されない処置具挿通穴２０の位置を的確に把握できる。従って、術者は処置具挿通穴２０から先端キャップ３０内に突出する処置具４０の操作を容易に行うことができる。
As described above, in this embodiment, the affected part B (bleeding part C) can be easily and reliably treated by using the air pressure and the elasticity of the translucent film material 35. Therefore, the surgeon can easily treat the affected area B as compared with the case where the treatment is performed by the conventional method using water.
Moreover, since the translucent film | membrane material 35 of this embodiment consists of an elastic material, it is easy to expand by air pressure. In addition, even if the surgeon injects a large amount of air into the distal end cap 30 and, as a result, the air pressure in the distal end cap 30 becomes excessive, the translucent film material 35 made of an elastic material can be easily broken. There is no.
Moreover, since the pressure contact portion 36 can be easily broken by the opening / closing claw 41 of the treatment instrument 40, the affected area B can be treated by the treatment instrument 40 without removing the distal end cap 30 from the distal end portion 14.
Further, since the index 39 is printed on the pressure contact portion 36, the operator can accurately grasp the position of the treatment instrument insertion hole 20 that is not displayed on the monitor by looking at the monitor. Therefore, the surgeon can easily operate the treatment tool 40 protruding from the treatment tool insertion hole 20 into the distal end cap 30.
なお、本実施形態では透光性膜材３５が無色透明なので、圧接部３６を介して患部Ｂや血液Ｃを明瞭に視認することができるが、患部Ｂや血液Ｃや体腔壁と識別できる色であれば圧接部３６は無色透明でなくてもよく、例えば有色透明や半透明であってもよい。
また、透光性膜材３５は弾性材料によって成形したものでなくてもよく、例えばビニール樹脂により成形することも可能である。
さらに、先端キャップ３０は電子内視鏡以外の内視鏡にも適用できるのは勿論である。
In this embodiment, since the translucent film material 35 is colorless and transparent, the affected part B and blood C can be clearly seen through the pressure contact part 36, but the color can be distinguished from the affected part B, blood C, and body cavity wall. If so, the pressure contact portion 36 does not have to be colorless and transparent, and may be, for example, colored and transparent.
Moreover, the translucent film | membrane material 35 may not be shape | molded by the elastic material, for example, can also shape | mold by a vinyl resin.
Furthermore, it goes without saying that the tip cap 30 can also be applied to endoscopes other than electronic endoscopes.
１０ 内視鏡
１１ 操作部
１２ 挿入部
１３ ユニバーサルチューブ
１４ 先端部
１５ 先端面
１６ 対物レンズ
１７ 照明用レンズ
１８ 送気穴
１９ 送水穴
２０ 処置具挿通穴
２１ 環状突部
２２ 送気送水ボタン
２３ 鉗子口
３０ 先端キャップ
３１ キャップ本体
３２ 環状凹部
３３ 係合凹部
３５ 透光性膜材
３６ 圧接部
３７ 外周部
３８ 係合突部
３９ 指標
４０ 処置具
４１ 開閉爪
Ａ 体腔
Ｂ 患部
Ｃ 血液
DESCRIPTION OF SYMBOLS 10 Endoscope 11 Operation part 12 Insertion part 13 Universal tube 14 End part 15 End surface 16 Objective lens 17 Illumination lens 18 Air supply hole 19 Water supply hole 20 Treatment tool insertion hole 21 Annular protrusion 22 Air supply / water supply button 23 Forceps port 30 End cap 31 Cap body 32 Annular recess 33 Engaging recess 35 Translucent membrane material 36 Pressure contact part 37 Outer peripheral part 38 Engaging protrusion 39 Index 40 Treatment tool 41 Opening / closing nail A Body cavity B Affected part C
Claims (5)
該キャップ本体に設けた開口部を気密状態で塞ぎ、かつ該キャップ本体を上記先端部に装着したときに該先端部に設けた対物レンズと対向する圧接部を有する弾性材料からなる透光性膜材と、
上記圧接部に設けた、上記キャップ本体を上記先端部に装着したときに、上記処置具挿通穴の直前に位置させることが可能な指標と、
を備え、
上記圧接部は、自由状態においては扁平をなし、上記送気穴から排出された空気圧によって弾性変形可能で、かつ、上記処置具挿通穴から出没可能な処置具によって破ることが可能であることを特徴とする内視鏡用先端キャップ。 A cap body detachably attached to the distal end portion of the endoscope having an air supply hole and a treatment instrument insertion hole at the distal end portion of the insertion portion ;
A translucent film made of an elastic material that closes an opening provided in the cap body in an airtight state and has a pressure contact portion facing an objective lens provided at the tip when the cap body is attached to the tip. Material,
An index that can be positioned immediately before the treatment instrument insertion hole when the cap body provided on the pressure contact portion is attached to the distal end portion;
With
The pressure contact portion is flat in a free state, can be elastically deformed by the air pressure discharged from the air supply hole, and can be torn by a treatment tool that can protrude and retract from the treatment tool insertion hole. Endoscope tip cap that features.
上記キャップ本体が上記先端部に気密状態で装着可能である内視鏡用先端キャップ。 The endoscope distal end cap according to claim 1,
A tip cap for an endoscope, wherein the cap body can be attached to the tip portion in an airtight state.
上記キャップ本体が弾性材料からなり、かつ自由状態における径が上記先端部より小径
の筒状である内視鏡用先端キャップ。 The endoscope front end cap according to claim 1 or 2,
A distal end cap for an endoscope, wherein the cap body is made of an elastic material and has a cylindrical shape whose diameter in a free state is smaller than the distal end portion.
上記透光性膜材が無色透明である内視鏡用先端キャップ。 In the tip cap for endoscopes according to any one of claims 1 to 3,
A tip cap for an endoscope, wherein the translucent film material is colorless and transparent .
該挿入部の上記先端部に着脱可能なキャップ本体、及び、該キャップ本体に設けた開口部を気密状態で塞ぎ、かつ該キャップ本体を上記先端部に装着したときに上記対物レンズと対向する圧接部を有する弾性材料からなる透光性膜材と、を有する内視鏡用先端キャップ、と
を備え、
上記圧接部に、上記キャップ本体を上記先端部に装着したときに、上記処置具挿通穴の直前に位置させることが可能な指標を設け、
上記圧接部は、自由状態においては扁平をなし、上記送気穴から排出された空気圧によって弾性変形可能で、かつ、上記処置具挿通穴から出没可能な処置具によって破ることが可能であることを特徴とする内視鏡。 An insertion portion including an objective lens, an air supply hole, and a treatment instrument insertion hole at the distal end ; and
A cap main body that can be attached to and detached from the distal end portion of the insertion portion, and a pressure contact that opposes the objective lens when the opening provided in the cap main body is sealed in an airtight state and the cap main body is attached to the distal end portion. A translucent film material made of an elastic material having a portion, and a distal end cap for an endoscope,
When the cap body is attached to the distal end portion, the pressure contact portion is provided with an index that can be positioned immediately before the treatment instrument insertion hole,
The pressure contact portion is flat in a free state, can be elastically deformed by the air pressure discharged from the air supply hole, and can be torn by a treatment tool that can protrude and retract from the treatment tool insertion hole. Features an endoscope.
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| KR102292017B1 (en) * | 2011-02-16 | 2021-08-20 | 더 제너럴 하스피탈 코포레이션 | Optical coupler for an endoscope |
| CN103781394B (en) | 2011-04-05 | 2016-09-28 | 可视化气囊有限责任公司 | Inflatable balloon-like access arrangement for endoscope |
| US9833126B2 (en) | 2011-04-05 | 2017-12-05 | Visualization Balloons, Llc | Balloon access device with features for engaging an endoscope |
| JP6235207B2 (en) * | 2012-11-06 | 2017-11-22 | 山本 政和 | Camera head cover |
| US10463235B2 (en) | 2014-02-24 | 2019-11-05 | Visualization Balloons, Llc | Gastrointestinal endoscopy with attachable intestine pleating structures |
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| JPS59135044A (en) * | 1983-01-19 | 1984-08-03 | 住友電気工業株式会社 | Fiberscope with baloon |
| JPS5994316U (en) * | 1982-12-13 | 1984-06-27 | 住友電気工業株式会社 | image fiber device |
| JPS59168833A (en) * | 1983-03-15 | 1984-09-22 | 住友電気工業株式会社 | Fiberscope with baloon |
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| JPH0213423A (en) * | 1988-06-30 | 1990-01-17 | Okamoto Ind Inc | Balloon for catheter and manufacture thereof |
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