JP5051584B2 - Endoscope forceps plug - Google Patents

Endoscope forceps plug Download PDF

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JP5051584B2
JP5051584B2 JP2008025969A JP2008025969A JP5051584B2 JP 5051584 B2 JP5051584 B2 JP 5051584B2 JP 2008025969 A JP2008025969 A JP 2008025969A JP 2008025969 A JP2008025969 A JP 2008025969A JP 5051584 B2 JP5051584 B2 JP 5051584B2
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syringe
passage
elastic tube
treatment instrument
main body
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JP2009183434A (en
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健二 山根
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Fujifilm Corp
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Fujifilm 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

Description

本発明は、内視鏡内に配設された処置具挿通チャンネルの入口に設けられた内視鏡の鉗子栓、特に密閉性を維持すると共に、処置具の挿入及びシリンジの使用を可能にする鉗子栓の構成に関する。   The present invention maintains an endoscopic forceps plug provided at the entrance of a treatment instrument insertion channel disposed in an endoscope, and in particular, allows the insertion of a treatment instrument and the use of a syringe while maintaining sealing. The present invention relates to a configuration of a forceps stopper.

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部（処置具挿通チャンネル導入口）３が設けられ、この鉗子口部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７ａ、送気送水ボタン７ｂ、カメラシャッタボタン７ｃ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 portion (treatment tool insertion channel introduction port) 3 having a forceps plug, and a treatment tool insertion channel 4 is disposed from the forceps port portion 3 to the distal end surface of the distal end portion 1A. The 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 section 1C is provided with a bending operation knob 6, and a suction button 7a, an air / water supply button 7b, a camera shutter button 7c, and the like are arranged.

図７には、上記鉗子口部３の構成の一例が示されており、上述の処置具挿通チャンネル４の入口に、ゴム材質の鉗子栓８が取り付けられる。この鉗子栓８は、下側本体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、蓋体８ｂの中心部にも同様の第２スリットＳ２が形成されており、これらのスリットＳ１，Ｓ２は、処置具挿通チャンネル４内の密閉性を維持すると共に、処置具挿通チャンネル４への処置具の挿入を可能にするものである。 FIG. 7 shows an example of the configuration of the forceps opening 3, and a rubber forceps plug 8 is attached to the entrance of the treatment instrument insertion channel 4. The forceps plug 8 is first slit S 1 is formed straight, which can be passed through the treatment instrument in the center of the lower body 8a, a second slit S 2 similar to the central portion of the lid 8b are formed The slits S 1 and S 2 maintain the sealing property in the treatment instrument insertion channel 4 and enable the treatment instrument to be inserted into the treatment instrument insertion channel 4.

このような内視鏡によれば、上記吸引ボタン７ａの操作により、処置具挿通チャンネル４と吸引管５を介して被観察体の内容物を吸引することができ、また鉗子栓８を有する鉗子口部３から処置具（鉗子等）を導入し、先端部１Ａまで導くことにより、被観察体内の各種の処置を行うことが可能になる。このとき、上記鉗子栓８では、蓋体８ｂを外した状態で第１スリットＳ１のみから処置具を挿入したり、或いは蓋体８ｂを着けた状態で第１スリットＳ１及び第２スリットＳ２の両方から処置具を挿入したりすることができる。
特開平３−７３１２７号公報 特開平２−２００２３４号公報 According to such an endoscope, by operating the suction button 7a, the contents of the object to be observed can be sucked through the treatment instrument insertion channel 4 and the suction tube 5, and a forceps having a forceps plug 8 is provided. By introducing a treatment tool (forceps or the like) from the mouth portion 3 and guiding it to the distal end portion 1A, it is possible to perform various treatments in the observed body. At this time, in the forceps plug 8, only to insert the treatment instrument from the first slit S 1 in a state in which the cover body is removed 8b, or the first slits S 1 and a second slit S in a state of wearing the lid 8b The treatment instrument can be inserted from both of the two .
JP-A-3-73127 Japanese Patent Laid-Open No. 2-200234

ところで、従来の内視鏡では、上記特許文献１又は２に開示されるように、鉗子栓８からシリンジ（注射器）を処置具挿通チャンネル入口に挿入し、生理食塩水、薬液、空気等を被観察体内へ送ることが行われているが、従来の鉗子栓８では、処置具又はシリンジのいずれか一方しか使用することができない。即ち、処置具を挿入・使用しているときは、この処置具を引き抜かなければ、シリンジを挿入することができず、不便な場合があるという問題があった。   By the way, in the conventional endoscope, as disclosed in Patent Document 1 or 2, a syringe (syringe) is inserted from the forceps plug 8 into the treatment instrument insertion channel inlet, and physiological saline, drug solution, air, etc. are covered. Although it is sent into the observation body, the conventional forceps plug 8 can use only one of the treatment tool and the syringe. That is, when the treatment tool is inserted and used, there is a problem that the syringe cannot be inserted unless the treatment tool is pulled out, which may be inconvenient.

この問題点の解決方法として、処置具の挿入口とシリンジの挿入口の２つを形成することが考えられるが、この場合には、処置具挿通チャンネル内の密閉性を維持するために、２箇所に手動栓（蓋体８ｂ）を設けなければならず、構成が複雑になると共に、２つの栓を手動で開閉することから、開閉操作が煩雑になるという不都合がある。   As a method for solving this problem, it is conceivable to form two treatment tool insertion ports and syringe insertion ports. In this case, in order to maintain the sealing property in the treatment tool insertion channel, 2 A manual plug (cover body 8b) must be provided at the location, and the configuration is complicated. In addition, since the two plugs are manually opened and closed, the opening / closing operation is complicated.

また、上記特許文献１に開示されているように、２つのスリット（Ｓ１，Ｓ２）を設けた鉗子栓８の構造の場合、シリンジを通路に斜めに押し込むことにより、スリット部分（膜）が切れて脱落することが生じる。 Further, as disclosed in Patent Document 1, in the case of the structure of the forceps plug 8 provided with two slits (S 1 , S 2 ), a slit portion (membrane) is formed by pushing the syringe obliquely into the passage. It will be cut off and fall off.

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、２箇所に手動栓を設けることなく、処置具とシリンジの両方を同時に使用することができ、またシリンジの挿入によってスリットの破損が生じることのない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-mentioned problems, and the object thereof is to provide both a treatment instrument and a syringe at the same time without providing manual stoppers at two locations. An object of the present invention is to provide an endoscopic forceps plug that does not cause breakage.

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、内視鏡処置具挿通チャンネルに連通する挿通路を有する本体と、この本体挿通路に連通するように形成され、シリンジ口を有するシリンジ用通路と、このシリンジ用通路の上記本体挿通路側出口を塞ぐように、上記本体挿通路に密着配置し、かつ処置具が挿通可能な通路を確保する弾性チューブを含み、該チューブの上記挿通路上側位置に処置具を通過させかつ栓として機能するスリット栓部を一体形成した弾性チューブ体とを設け、シリンジが上記シリンジ口に接続可能となると共に、処置具が上記スリットから導入可能となるように構成したことを特徴とする。
請求項２の発明は、上記弾性チューブ体の上方に、フランジ状の突出部を形成し、上記本体挿通路には係合溝を形成し、この係合溝に上記突出部を係合させることにより、弾性チューブ体を本体挿通路に固定することを特徴とする。 To achieve the above object, an endoscope forceps plug according to the invention of claim 1 is formed so as to communicate with a main body having an insertion passage communicating with an endoscope treatment instrument insertion channel and the main body insertion passage. A syringe passage having a syringe port, and an elastic tube that is arranged in close contact with the main body insertion passage so as to close the main body insertion passage side outlet of the syringe passage and secures a passage through which a treatment instrument can be inserted. Including an elastic tube body integrally formed with a slit plug portion that passes the treatment tool and functions as a stopper at the upper position of the insertion path of the tube, and the syringe can be connected to the syringe port, and the treatment tool It is characterized in that it can be introduced from the slit.
In the invention of claim 2, a flange-like protrusion is formed above the elastic tube body, an engagement groove is formed in the main body insertion passage, and the protrusion is engaged with the engagement groove. Thus, the elastic tube body is fixed to the main body insertion passage.

本発明の構成によれば、弾性チューブ体の上部に設けられたスリット栓部から処置具を処置具挿通チャンネルへ挿入し、この処置具を内視鏡先端部から被観察体内へ導出することができ、このとき、開いたスリットはその弾性により処置具の側面に密着するので、処置具の使用中でも所期の密閉性が確保される。また、このスリット栓部に処置具を挿入した状態又は挿入しない状態で、シリンジ口からシリンジを挿入すると、このシリンジの先端注入管が弾性チューブ体の側面（円筒側面）を押すことにより、又はシリンジから供給される流体によって弾性チューブ体の側面を押すことにより、その側面部が押し潰されるように変形し、シリンジ用通路が自動的に開状態となる。この結果、シリンジ内の流体が処置具挿通チャンネルを介して被観察体へ送給される。一方、シリンジを抜いた後には、弾性チューブ体が元の円筒形状に復元してシリンジ用通路を塞ぐので、処置具も抜くことにより、処置具挿通チャンネル内を完全に密閉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 slit plug portion provided on the upper portion of the elastic tube body, and the treatment instrument is led out from the distal end portion of the endoscope into the observed body. At this time, the open slit is in close contact with the side surface of the treatment instrument due to its elasticity, so that the desired sealing performance is ensured even during use of the treatment instrument. In addition, when a syringe is inserted from a syringe port with or without a treatment tool inserted into the slit stopper, the tip injection tube of the syringe pushes the side surface (cylindrical side surface) of the elastic tube body, or the syringe. By pushing the side surface of the elastic tube body with the fluid supplied from the tube, the side surface portion is deformed so as to be crushed, and the syringe passage is automatically opened. As a result, the fluid in the syringe is fed to the object to be observed through the treatment instrument insertion channel. On the other hand, after the syringe is pulled out, the elastic tube body is restored to its original cylindrical shape and closes the syringe passage, so that the treatment tool insertion channel can be completely sealed by removing the treatment tool. .

請求項２の構成によれば、フランジ状の突出部と係合溝の係合によって弾性チューブ体が本体挿通路にしっかりと固定され、これによって、弾性チューブ体の変形、復元の動作がスムーズに行われる。   According to the configuration of the second aspect, the elastic tube body is firmly fixed to the main body insertion passage by the engagement of the flange-shaped protrusion and the engagement groove, thereby smoothly performing the deformation and restoration operations of the elastic tube body. Done.

本発明の内視鏡の鉗子栓によれば、変形及び復元する弾性チューブ体によってシリンジ用通路の開閉が自動的に行われるので、２箇所に手動栓を設けることなく、処置具とシリンジの両方を同時に使用することが可能になる。また、シリンジの斜めの挿入等によってスリットの破損が生じることもないという利点がある。更に、１つの弾性チューブ体に、シリンジ用通路の開閉機能とスリット栓機能の両方を持たせるので、製作が容易になると共に、弾力性が低下して開閉機能又は栓機能が低下した場合等には、弾性チューブ体の交換のみで鉗子栓を継続して使用することができ、経済的かつ無駄のない鉗子栓が得られるという効果がある。   According to the forceps plug of the endoscope of the present invention, since the syringe passage is automatically opened and closed by the elastic tube body that is deformed and restored, both the treatment instrument and the syringe are provided without providing manual stoppers at two locations. Can be used simultaneously. In addition, there is an advantage that the slit is not broken due to oblique insertion of the syringe or the like. In addition, since one elastic tube body has both the opening / closing function of the syringe passage and the slit stopper function, it is easy to manufacture, and when the opening / closing function or stopper function is reduced due to a decrease in elasticity. Since the forceps plug can be continuously used only by replacing the elastic tube body, there is an effect that an economical and lean forceps plug can be obtained.

請求項２の構成によれば、弾性チューブ体が本体挿通路に対ししっかりと固定され、弾性チューブ体の変形、復元の動作がスムーズに行われるので、シリンジ用通路の開閉動作が安定して行われるという効果がある。   According to the configuration of claim 2, the elastic tube body is firmly fixed to the main body insertion passage, and the elastic tube body is smoothly deformed and restored, so that the opening and closing operation of the syringe passage is stably performed. Has the effect of being

図１乃至図５には、実施例に係る内視鏡の鉗子栓の構成が示されており、図１は鉗子栓１２の断面、図３及び図４は内視鏡操作部（図６の１Ｃ）に設けられる鉗子口部の構成、図５は鉗子口部の断面である。図３乃至図５に示されるように、鉗子口部１０は操作部の外装体１１の側面から分岐し、内部の処置具挿通チャンネルＣｈの導入口となるように設けられ、この鉗子口部１０に鉗子栓１２が取り付けられる。   FIGS. 1 to 5 show a configuration of a forceps plug of an endoscope according to the embodiment. FIG. 1 is a cross-sectional view of a forceps plug 12, and FIGS. 3 and 4 are endoscope operation units (FIG. 6). FIG. 5 is a cross-sectional view of the forceps opening provided in 1C). As shown in FIGS. 3 to 5, the forceps port portion 10 is provided so as to branch from the side surface of the exterior body 11 of the operation portion and serve as an introduction port for the internal treatment instrument insertion channel Ch. A forceps stopper 12 is attached to the head.

図１に示されるように、上記鉗子栓１２は、例えばゴム材質の本体１４を備え、この本体１４に、その中心部を上下方向に貫くように管状挿通路１４ｈが形成されると共に、この挿通路１４ｈの下部へ向けて本体側面上方から斜めに貫通し、該挿通路１４ｈに連通するシリンジ用通路１４ｓが形成される。   As shown in FIG. 1, the forceps plug 12 includes a main body 14 made of, for example, rubber, and a tubular insertion passage 14h is formed in the main body 14 so as to penetrate the central portion in the vertical direction. A syringe passage 14s that penetrates obliquely from above the side surface of the main body toward the lower portion of the passage 14h and communicates with the insertion passage 14h is formed.

そして、上記挿通路１４ｈに、シリンジ用通路１４ｓの開閉機能と鉗子栓１２の栓機能を果たす弾性チューブ体１６が配置されており、この弾性チューブ体１６は、シリコン、フッ素樹脂等によって円筒状に形成され、挿通路１４ｈの内周に嵌合する大きさ（径）の外周を持ち、かつ上記シリンジ用通路１４ｓを塞ぐことができる長さとされる。この弾性チューブ体１６によれば、その側面に圧力が加えられたとき、側面部が潰れるように変形すると共に、円筒状であるため、中心から径方向へ向かう付勢力によって即座に復元することができ、密閉力も高くなる。   An elastic tube body 16 that performs the opening / closing function of the syringe passage 14s and the plugging function of the forceps plug 12 is disposed in the insertion path 14h. The elastic tube body 16 is cylindrically formed of silicon, fluororesin, or the like. It is formed, has an outer periphery of a size (diameter) fitted to the inner periphery of the insertion passage 14h, and has a length capable of closing the syringe passage 14s. According to the elastic tube body 16, when pressure is applied to the side surface, the side surface portion is deformed so as to be crushed, and since it is cylindrical, it can be immediately restored by a biasing force in the radial direction from the center. And the sealing force is increased.

また、上記弾性チューブ体１６には、その円筒管の上部に、処置具（１７）を挿入できる大きさのスリット（切込み部）１８を有するスリット栓部が形成されており、このスリット栓部は、円筒管の上部に形成され、挿通路１４ｈの内径よりも大きな外径の所定肉厚の円柱閉塞部の中心にスリット１８を切り込み形成してなる。この円柱閉塞部のスリット栓部は、本体１４側から付勢力を受けることで（図３）、挿通路１４ｈに密着する。そして、上記スリット１８は、処置具を挿入する一方で栓機能を果たしており、処置具の挿入時には、挿通路１４ｈ（処置具挿通チャンネルＣｈ）内を所期の密閉状態、処置具を抜去したときは、挿通路１４ｈ内を完全に密閉状態にすることができる。   Further, the elastic tube body 16 is formed with a slit plug portion having a slit (cut portion) 18 having a size capable of inserting the treatment instrument (17) at the upper portion of the cylindrical tube. The slit 18 is formed at the center of a cylindrical closed portion having a predetermined thickness and an outer diameter larger than the inner diameter of the insertion passage 14h. The slit plug portion of the cylindrical blocking portion is in close contact with the insertion passage 14h by receiving a biasing force from the main body 14 side (FIG. 3). The slit 18 functions as a plug while inserting the treatment instrument. When the treatment instrument is inserted, the slit 18 is sealed in the insertion path 14h (treatment instrument insertion channel Ch), and the treatment instrument is removed. Can completely seal the inside of the insertion passage 14h.

上記挿通路１４ｈの上部に配置された弾性チューブ体１６のスリット１８は、鉗子栓１２の入口（処置具挿通チャンネルＣｈの導入口）Ｅａとなるが、上記シリンジ用通路１４ｓの上部はシリンジ口Ｅｂとなり、このシリンジ口Ｅｂ及び通路１４ｓの内径は、シリンジ（注射器）２０の先端注入管（注入口）２０ａが挿入・嵌合可能となる大きさに設定される。   The slit 18 of the elastic tube body 16 disposed at the upper part of the insertion passage 14h serves as the inlet (introduction port of the treatment instrument insertion channel Ch) Ea of the forceps plug 12, while the upper part of the syringe passage 14s has the syringe opening Eb. Thus, the inner diameter of the syringe port Eb and the passage 14s is set to a size that allows the distal end injection tube (injection port) 20a of the syringe (injector) 20 to be inserted and fitted.

更に、上記弾性チューブ体１６には、その円筒管の上方外周にフランジ状（つば状）突出部１６ａが設けられる。一方、本体１４の挿通路１４ｈの壁面には、上記フランジ状突出部１６ａに嵌合（係合）する環状の係合溝１４ｃが形成されており、この係合溝１４ｃに突出部１６ａが嵌合することで、弾性チューブ体１６が挿通路１４ｈにしっかりと固定される。即ち、上記フランジ状突出部１６ａは、位置固定のための部材であると共に、上記スリット栓部と共にチューブ上側を潰れ難くしており、シリンジ使用時に潰れたチューブ側面の復帰を確実かつ迅速に行う役目を担うものとなる。   Further, the elastic tube body 16 is provided with a flange-shaped (collar-shaped) protruding portion 16a on the upper outer periphery of the cylindrical tube. On the other hand, on the wall surface of the insertion passage 14h of the main body 14, an annular engagement groove 14c that is fitted (engaged) with the flange-like protrusion 16a is formed, and the protrusion 16a is fitted into the engagement groove 14c. By joining, the elastic tube body 16 is firmly fixed to the insertion path 14h. That is, the flange-like protruding portion 16a is a member for fixing the position, and it is difficult to crush the upper side of the tube together with the slit plug portion, so that the side surface of the crushed tube side can be reliably and quickly restored when the syringe is used. Will be responsible.

このような鉗子栓１２は、図１（Ａ），（Ｂ）に示されるように、本体１４の挿通路１４ｈに対し突出部１６ａを係合溝１４ｃに係合しながら弾性チューブ体１６を装着し、この本体１４を処置具挿通チャンネルＣｈの管部材１９の先端に取り付けることで、図３乃至図５に示される状態の鉗子口部１０が製作される。   As shown in FIGS. 1A and 1B, such a forceps plug 12 has an elastic tube body 16 attached to the insertion passage 14h of the main body 14 while engaging the protrusion 16a with the engagement groove 14c. Then, by attaching this main body 14 to the distal end of the tube member 19 of the treatment instrument insertion channel Ch, the forceps port portion 10 in the state shown in FIGS. 3 to 5 is manufactured.

実施例は以上の構成からなり、通常の観察状態又は吸引を行う場合は、図１（Ｂ）及び図３に示されるように、スリット１８が閉じられると共に、弾性チューブ体１６の外周面が本体１４の挿通路１４ｈ内面に密着してシリンジ用通路１４ｓ（挿通路１４ｈ側出口）を閉塞するので、処置具挿通チャンネルＣｈ内やこのチャンネルＣｈに連通する吸引管内が高い密閉（気密）状態に保たれ、被観察体内の空気や流体物が内視鏡先端部から処置具挿通チャンネルＣｈを介して漏れたり流出したりすることが防止される。   The embodiment is configured as described above, and when performing normal observation or suction, the slit 18 is closed and the outer peripheral surface of the elastic tube body 16 is the main body as shown in FIGS. 14 close to the inner surface of the insertion passage 14h and closes the syringe passage 14s (exit on the insertion passage 14h side), so that the inside of the treatment instrument insertion channel Ch and the inside of the suction pipe communicating with the channel Ch are kept in a highly sealed (airtight) state. As a result, it is possible to prevent the air and fluid in the observed body from leaking or flowing out from the distal end portion of the endoscope through the treatment instrument insertion channel Ch.

一方、各種の処置を行う場合は、図２，図４及び図５に示されるように、処置具１７（鉗子等）を鉗子栓１２の入口Ｅａとなる弾性チューブ体１６のスリット１８から挿通路１４ｈへ向けて挿入すれば、弾性チューブ体１６の内部を通り処置具挿通チャンネルＣｈを介して処置具１７を内視鏡先端部まで導くことができ、これによって被観察体の処置が可能となる。   On the other hand, when performing various treatments, as shown in FIGS. 2, 4, and 5, the treatment tool 17 (forceps or the like) is inserted from the slit 18 of the elastic tube body 16 serving as the inlet Ea of the forceps plug 12. If it is inserted toward 14h, the treatment tool 17 can be guided to the distal end portion of the endoscope through the treatment tool insertion channel Ch through the inside of the elastic tube body 16, and the treatment of the object to be observed becomes possible. .

そして、図示されるように、シリンジ２０を用いる場合は、シリンジ口Ｅｂからシリンジ用通路１４ｓにシリンジ２０の先端注入管２０ａを挿入すると、この注入管２０ａが弾性チューブ体１６の側面を押し、更に生理食塩水等の流体を流すことで、この弾性チューブ体１６の側面が押し潰されるように変形し（図２，図５）、流体が処置具挿通チャンネルＣｈを介して被観察体へ送られる。実施例では、シリンジ用通路１４ｓの長さを先端注入管２０ａの長さよりも短くし、この先端注入管２０ａで弾性チューブ体１６の側面を押すようにしているが、この弾性チューブ体１６は、注入される流体の流力によっても変形させることができるので、シリンジ用通路１４ｓの長さは先端注入管２０ａよりも長くしてもよい。   As shown in the figure, when the syringe 20 is used, when the distal end injection tube 20a of the syringe 20 is inserted from the syringe port Eb into the syringe passage 14s, the injection tube 20a pushes the side surface of the elastic tube body 16, and further By flowing a fluid such as physiological saline, the side surface of the elastic tube body 16 is deformed so as to be crushed (FIGS. 2 and 5), and the fluid is sent to the object to be observed through the treatment instrument insertion channel Ch. . In the embodiment, the length of the syringe passage 14s is made shorter than the length of the tip injection tube 20a, and the side of the elastic tube body 16 is pushed by the tip injection tube 20a. Since it can be also deformed by the flow force of the fluid to be injected, the length of the syringe passage 14s may be longer than that of the distal end injection tube 20a.

また、上記シリンジ２０を抜いた後は、弾性チューブ体１６の変形が即座に復元し、この弾性チューブ体１６と挿通路１４ｈの密着によって処置具挿通チャンネルＣｈ内の密閉状態が確保される。このようにして、実施例では、シリンジ２０による流体注入を、手動栓の開閉を行うことなく自動的に、また処置具１７の挿入とは関係なく単独で行うことができ、従って処置具１７とシリンジ２０とを同時に挿入し使用することが可能となる。   Further, after the syringe 20 is pulled out, the deformation of the elastic tube body 16 is immediately restored, and the sealed state in the treatment instrument insertion channel Ch is ensured by the close contact between the elastic tube body 16 and the insertion passage 14h. In this way, in the embodiment, fluid injection by the syringe 20 can be performed automatically without opening and closing the manual stopper and independently of insertion of the treatment instrument 17, and therefore the treatment instrument 17 The syringe 20 can be inserted and used at the same time.

このような実施例の弾性チューブ体１６は、円筒状であるため、中心から径方向全体に付勢力がかかり、密閉力、復元力が高いという利点がある。例えば、上記シリンジ用通路１４ｓだけを塞ぐ弁を設けることも考えられるが、この場合は、使用回数が多いと、復元力がなくなり密閉力が低下する。   Since the elastic tube body 16 of such an example is cylindrical, an urging force is applied to the entire radial direction from the center, and there is an advantage that the sealing force and the restoring force are high. For example, it is conceivable to provide a valve for closing only the syringe passage 14s. In this case, if the number of times of use is large, the restoring force is lost and the sealing force is reduced.

上記実施例では、鉗子栓１２の入口Ｅａに、弾性チューブ体１６の１つのスリット１８を設けた例を示したが、図７に示したように、本体１４の上側に蓋体（８ｂ）を形成することで、２重にスリットを設けることができる。また、上記弾弾性チューブ体１６は、その材質や厚さを適宜選択することで、潰れ変形に対する復元力が高くなるようにしているが、この弾性チューブ体１６内にスポンジのような他の弾性部材を入れることで、復元力を高めるようにしてもよい。   In the above embodiment, an example in which one slit 18 of the elastic tube body 16 is provided at the entrance Ea of the forceps plug 12 is shown. However, as shown in FIG. By forming, double slits can be provided. Further, the elastic elastic tube body 16 has an appropriate selection of the material and thickness so as to increase the restoring force against the crushing deformation. The restoring force may be increased by inserting a member.

本発明の実施例に係る内視鏡の鉗子栓の構成を示し、図（Ａ）は分解断面図、図（Ｂ）は弾性チューブ部を取り付けた後の分解断面図である。The structure of the forceps plug of the endoscope which concerns on the Example of this invention is shown, A figure (A) is an exploded sectional view, A figure (B) is an exploded sectional view after attaching an elastic tube part. 実施例の鉗子栓に対し処置具とシリンジを挿入したときの状態を示す断面図である。It is sectional drawing which shows a state when a treatment tool and a syringe are inserted with respect to the forceps stopper of an Example. 実施例の鉗子栓を取り付けた鉗子口部の構成を示す斜視図である。It is a perspective view which shows the structure of the forceps opening | mouth part which attached the forceps stopper of the Example. 実施例の鉗子栓に処置具とシリンジを挿入したときの鉗子口部の斜視図である。It is a perspective view of a forceps opening when a treatment tool and a syringe are inserted into the forceps plug of the example. 実施例の鉗子栓に処置具とシリンジを挿入したときの鉗子口部の断面図である。It is sectional drawing of a forceps opening | mouth part when a treatment tool and a syringe are inserted in the forceps stopper of an 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…鉗子口部、 ４，Ｃｈ…処置具挿通チャンネル、
８，１２…鉗子栓、 １４…鉗子栓本体、
１４ｈ…挿通路、 １４ｃ…係合溝、
１４ｓ…シリンジ用通路、 １６…弾性チューブ体、
１６ａ…突出部、 １７…処置具、
１８…スリット（栓部）、 １９…管部材、
２０…シリンジ、 Ｅａ…入口、
Ｅｂ…シリンジ口。 3, 10 ... forceps opening, 4, Ch ... treatment instrument insertion channel,
8, 12 ... forceps plug, 14 ... forceps plug body,
14h ... insertion path, 14c ... engagement groove,
14s ... passage for syringe, 16 ... elastic tube body,
16a ... projecting part, 17 ... treatment instrument,
18 ... slit (plug), 19 ... pipe member,
20 ... Syringe, Ea ... Inlet,
Eb: Syringe mouth.

Claims (2)

内視鏡処置具挿通チャンネルに連通する挿通路を有する本体と、
この本体挿通路に連通するように形成され、シリンジ口を有するシリンジ用通路と、
このシリンジ用通路の上記本体挿通路側出口を塞ぐように、上記本体挿通路に密着配置し、かつ処置具が挿通可能な通路を確保する弾性チューブを含み、該チューブの上記挿通路上側位置に処置具を通過させかつ栓として機能するスリット栓部を一体形成した弾性チューブ体とを設け、
シリンジが上記シリンジ口に接続可能となると共に、処置具が上記スリットから導入可能となるように構成した内視鏡の鉗子栓。 A main body having an insertion passage communicating with the endoscope treatment instrument insertion channel;
A syringe passage formed to communicate with the body insertion passage and having a syringe port;
An elastic tube is provided in close contact with the main body insertion passage so as to block the main body insertion passage side outlet of the syringe passage and secures a passage through which a treatment instrument can be inserted, An elastic tube body integrally formed with a slit plug portion that allows the treatment tool to pass and functions as a plug; and
An endoscopic forceps plug configured such that a syringe can be connected to the syringe port and a treatment tool can be introduced from the slit. 上記弾性チューブ体の上方に、フランジ状の突出部を形成し、上記本体挿通路には係合溝を形成し、この係合溝に上記突出部を係合させることにより、弾性チューブ体を本体挿通路に固定することを特徴とする請求項１記載の内視鏡の鉗子栓。   A flange-shaped protrusion is formed above the elastic tube body, an engagement groove is formed in the main body insertion passage, and the protrusion is engaged with the engagement groove, whereby the elastic tube body is made into a main body. The endoscopic forceps plug according to claim 1, wherein the forceps plug is fixed to the insertion path.
JP2008025969A 2008-02-06 2008-02-06 Endoscope forceps plug Expired - Fee Related JP5051584B2 (en)

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WO2014126929A1 (en) * 2013-02-14 2014-08-21 Boston Scientific Scimed, Inc. Medical tools and related methods of use
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