JP2012191976A - Endoscope insertion assisting device - Google Patents

Endoscope insertion assisting device Download PDF

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Publication number
JP2012191976A
JP2012191976A JP2011056342A JP2011056342A JP2012191976A JP 2012191976 A JP2012191976 A JP 2012191976A JP 2011056342 A JP2011056342 A JP 2011056342A JP 2011056342 A JP2011056342 A JP 2011056342A JP 2012191976 A JP2012191976 A JP 2012191976A
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belt
endoscope
overtube
assisting device
endless belt
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Takeshi Ashida
毅 芦田
Takayuki Nakamura
貴行 仲村
Shinichi Yamakawa
真一 山川
Yasuyoshi Ota
恭義 大田
Masayuki Iwasaka
誠之 岩坂
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Fujifilm Corp
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Fujifilm Corp
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Abstract

PROBLEM TO BE SOLVED: To provide an endoscope insertion assisting device to be attached to an insertion portion of an endoscope and used, wherein the insertion portion of the endoscope can be highly efficiently inserted.SOLUTION: The insertion assisting device 10 includes: a support cylinder into which the substantially whole length of the insertion portion of the endoscope is inserted; an overtube 22 externally fitted to the support cylinder; and a belt reeling device 25 having two reeling shafts allowing both ends of an ended belt 20 to be fixed thereto respectively, and unreeling and reeling the ended belt 20. A distal end fixing portion 26 fixed to the distal end of the endoscope insertion portion is formed on the inside of the distal end side of the support cylinder, and a tapered surface 28 formed on the root side is fixed to a hand operating section of the endoscope. A plurality of belt insertion holes 33 are formed in the overtube 22 in line along an insertion axis 18. The belt insertion holes 33 are formed on three parts formed by trisecting the circular direction, respectively, and the three ended belts 20 are inserted. The ended belts 20 are inserted through the belt insertion holes 33 so as to weave through the overtube 22.

Description

本発明は、内視鏡の挿入部に装着されて使用される内視鏡用挿入補助装置に関する。   The present invention relates to an endoscope insertion assisting device that is used by being attached to an insertion portion of an endoscope.

体内管路、例えば大腸に内視鏡を挿入する手技は、大腸が体内で曲がりくねった構造であり、S状結腸や横行結腸のように体腔に固定されていない部分があるといった理由から困難を窮める。このため、大腸への内視鏡の挿入手技の習得には多くの経験を必要とし、挿入手技が未熟である場合には、患者に大きな苦痛を与えてしまう。   The technique of inserting an endoscope into a body duct, such as the large intestine, is difficult because the large intestine has a tortuous structure in the body and there are parts that are not fixed to the body cavity, such as the sigmoid colon and the transverse colon . For this reason, much experience is required to learn the technique for inserting an endoscope into the large intestine, and if the insertion technique is immature, the patient will be greatly distressed.

このため、特許文献1では、未熟な術者でも容易に挿入手技を行うことができるように、腸管内で内視鏡を挿入方向に推進させる自己推進型の挿入補助装置が提案されている。これによれば、無端ベルトによって腸管を手繰り寄せることによって、内視鏡にその挿入方向への推進力を付与することより、内視鏡を腸管深部へと誘導することができる。   For this reason, Patent Document 1 proposes a self-propelled insertion assist device that propels the endoscope in the insertion direction in the intestine so that even an unskilled operator can easily perform the insertion procedure. According to this, the endoscope can be guided to the deep part of the intestinal tract by applying the driving force in the insertion direction to the endoscope by pulling the intestinal tract by the endless belt.

特開平1−227737号公報JP-A-1-227737

しかしながら、特許文献1に記載の装着具は、一定長の無端ベルトを腸管に接触させていることから無端ベルトの腸管への接触面積が限られており、腸管の箇所によって無端ベルと腸管とが密着しないと、無端ベルトによる推進力が得られないおそれがある。推進力が得られなくなった場合は、一端装着具を引き戻す必要が生じ、作業の効率が悪くなるおそれがある。   However, the wearing tool described in Patent Document 1 has a contact area of the endless belt to the intestinal tract because the endless belt having a certain length is in contact with the intestinal tract. If it does not adhere, there is a possibility that the propulsive force by the endless belt cannot be obtained. If the propulsive force can no longer be obtained, it is necessary to pull back the mounting tool at one end, which may reduce the efficiency of the work.

本発明は上述の問題点に鑑みてなされたものであり、その目的は、内視鏡の先端部を効率よく挿入できる内視鏡用挿入補助装置を提供することにある。   The present invention has been made in view of the above-described problems, and an object of the present invention is to provide an insertion assist device for an endoscope that can efficiently insert the distal end portion of the endoscope.

本発明による内視鏡用挿入補助装置は、内視鏡の挿入部に装着され、体腔内壁に接触するN本の有端ベルトを前記内視鏡の挿入軸の方向に移動させて、前記内視鏡の挿入部を推進させる内視鏡挿入補助装置であって、前記挿入部の略全長が挿入されるとともに、一端側が前記内視鏡の手元操作部に固定される支持筒と、前記支持筒を覆うように外嵌され支持されるとともに前記挿入軸に沿って一列に形成され前記有端ベルトが縫うように挿通される複数のベルト挿通孔が円周方向をN等分するN箇所にそれぞれ形成されたオーバーチューブと、前記支持筒の前記手元操作部側に設けられるとともに前記有端ベルトの両端がそれぞれ固定され前記有端ベルトの送り出しと巻き取りとを行う2本の巻取軸を有するN個のベルト巻取装置と、を備えたことを特徴とする。   An endoscope insertion assisting device according to the present invention is attached to an insertion portion of an endoscope and moves N end belts contacting an inner wall of a body cavity in the direction of the insertion axis of the endoscope, thereby An endoscope insertion assisting device for propelling an insertion portion of an endoscope, wherein a substantially entire length of the insertion portion is inserted, and a support cylinder whose one end side is fixed to a hand operation portion of the endoscope, and the support A plurality of belt insertion holes that are externally fitted and supported so as to cover the cylinder and that are formed in a row along the insertion shaft and are inserted so as to sew the endless belt are formed at N places that divide the circumferential direction into N equal parts Overtubes that are formed respectively, and two winding shafts that are provided on the hand operating portion side of the support cylinder and that both ends of the endless belt are respectively fixed to feed and wind the endless belt. N belt take-up devices having It is characterized in.

前記有端ベルトは3本が好ましく、前記Nは3であることが好ましい。   The number of the endless belts is preferably 3, and the N is preferably 3.

前記巻取装置は、前記巻取軸の回転方向が切り替え自在とされるとともに、前記巻取軸の一方が前記有端ベルトを送り出す方向に回転すると同時に、他方が前記有端ベルトを巻き取る方向に回転するように構成する。   In the winding device, the rotation direction of the winding shaft is freely switchable, and at the same time one of the winding shafts rotates in the direction of feeding out the end belt, and the other direction winds the end belt. Configure to rotate.

前記支持筒とオーバーチューブはともに可撓性を有し、前記オーバーチューブの内側の面に当接して前記オーバーチューブを支持する複数の凸部が前記支持筒の外側の面に形成されるようにすると良い。   The support tube and the overtube are both flexible, and a plurality of convex portions that contact the inner surface of the overtube and support the overtube are formed on the outer surface of the support tube. Good.

前記巻取軸の一方から送り出された前記有端ベルトは、前記オーバーチューブの内側を通って先端まで走行し、先端で外側に折り返された後に、前記一列に形成された複数のベルト挿通孔に順に挿通されて前記オーバーチューブの外側と内側とを交互に走行し、その後、前記巻取軸の他方に巻き取られるようにすると良い。   The endless belt fed from one of the winding shafts travels to the tip through the inside of the overtube, and after being folded outward at the tip, the plurality of belt insertion holes formed in one row It is good to make it pass in order and to drive | work the outer side and the inner side of the said over tube alternately, and to wind up by the other of the said winding shaft after that.

前記オーバーチューブは、先端側から数えて奇数番目の前記ベルト挿通孔と偶数番目の前記ベルト挿通孔の間の内側の面が肉抜きされて、ベルト走行溝が形成されるようにすると良い。   In the overtube, it is preferable that an inner surface between the odd-numbered belt insertion holes and the even-numbered belt insertion holes counted from the tip side is thinned to form a belt running groove.

隣合う前記ベルト挿通孔の間隔は、前記先端側から数えて偶数番目と奇数番目の間より、奇数番目と偶数番目の間の方が短いようにすると良い。   The interval between the adjacent belt insertion holes may be shorter between the odd number and the even number than between the even number and the odd number when counted from the front end side.

前記有端ベルトは、生体適合プラスチックで形成されていることが好ましい。   The endless belt is preferably formed of a biocompatible plastic.

本発明によれば、挿入部が腸管内に進入するほど有端ベルトと腸管の内壁との接触面積が増えて、有端ベルトの推進力を腸管に効率よく伝達することが可能になり、内視鏡の先端部を効率よく挿入できる。   According to the present invention, the contact area between the endless belt and the inner wall of the intestinal tract increases as the insertion portion enters the intestinal tract, and the propulsive force of the endless belt can be efficiently transmitted to the intestinal tract. The tip of the endoscope can be inserted efficiently.

内視鏡システムの概略図である。It is a schematic diagram of an endoscope system. 本発明の挿入補助装置の斜視外観図である。It is a perspective appearance figure of an insertion auxiliary device of the present invention. 挿入補助装置内部の構成を示す説明図である。It is explanatory drawing which shows the structure inside an insertion assistance apparatus. 挿入補助装置の縦断面図である。It is a longitudinal cross-sectional view of an insertion auxiliary device. 支持筒の斜視外観図である。It is a perspective external view of a support cylinder.

図1に示されるように、内視鏡用挿入補助装置(以下、単に挿入補助装置という)10は、内視鏡12の手元操作部13と、この手元操作部13に接続された挿入部14とを備える。手元操作部13にはアングルノブや、送気・送水ボタン、吸引ボタン等が設けられ、ユニバーサルコードが接続されているが、これらはいずれも周知のものであるから符号を付さず説明も省略する。   As shown in FIG. 1, an endoscope insertion assisting device (hereinafter simply referred to as an insertion assisting device) 10 includes a hand operation unit 13 of an endoscope 12 and an insertion unit 14 connected to the hand operation unit 13. With. The hand control unit 13 is provided with an angle knob, an air / water feed button, a suction button, etc., and is connected with a universal cord. To do.

挿入部14は、手元操作部13側から順に、可撓性を有する軟性部15と湾曲自在な湾曲部16と先端硬性部17とからなり、挿入補助装置10は、挿入部14の略全長を収容し、その両端が手元操作部13と先端硬性部17とに固定される。挿入補助装置10は、3本の有端ベルト20により、腸管を手繰り寄せて挿入部14に推進力を与えることで、挿入部14を体内に挿入し易くしている。   The insertion portion 14 is composed of a flexible flexible portion 15, a bendable bending portion 16, and a distal end rigid portion 17 in order from the hand operation portion 13 side. The insertion assisting device 10 has a substantially entire length of the insertion portion 14. The both ends are fixed to the hand operating portion 13 and the distal end rigid portion 17. The insertion assisting device 10 makes it easy to insert the insertion portion 14 into the body by pulling the intestinal tract by the three end belts 20 and applying a driving force to the insertion portion 14.

有端ベルト20は、柔軟性及び不可侵性を有する生体適合プラスチックで形成されている。生体適合プラスチックとしてはポリ塩化ビニルが用いられている。なお、ポリ塩化ビニルに代えてポリアミド樹脂、フッ素樹脂、ポリウレタン樹脂等を用いることもできる。   The endless belt 20 is made of a biocompatible plastic having flexibility and imperviousness. Polyvinyl chloride is used as the biocompatible plastic. In place of polyvinyl chloride, polyamide resin, fluororesin, polyurethane resin, or the like can be used.

図2〜図5に示されるように、挿入補助装置10は、挿入部14の略全長が挿入されるとともに一端側が内視鏡12の手元操作部13に固定される支持筒21と、支持筒21を覆うように外嵌され支持筒21によって支持されたオーバーチューブ22と、有端ベルト20の両端がそれぞれ固定され有端ベルト20の送り出しと巻き取りとを行う2本の巻取軸24を有する3個のベルト巻取装置25とを備える。   As shown in FIGS. 2 to 5, the insertion assisting device 10 includes a support cylinder 21 in which the substantially entire length of the insertion section 14 is inserted and one end side is fixed to the hand operation section 13 of the endoscope 12, and a support cylinder An overtube 22 that is externally fitted so as to cover 21 and supported by a support cylinder 21, and two winding shafts 24 that feed and wind the end belt 20 with both ends of the end belt 20 fixed. And three belt winding devices 25.

支持筒21の先端側の内側に先端硬性部17と嵌合する先端固定部26が形成される。先端固定部26は支持筒21の内側の面27より小径に形成されている。内側の面27の根元側にはテーパ面28が形成され、手元操作部13に固定される。テーパ面28が形成されたテーパ面28の外側には有端ベルト20が収容されるベルト収納ケース30が挿入軸18を中心に120°間隔で3ヶ所に設けられ、腸管内壁に接触する3本の有端ベルト20を挿入軸18の方向にそれぞれ移動させて、内視鏡12の挿入部14を腸管内で推進させる。   A distal end fixing portion 26 that fits with the distal end rigid portion 17 is formed inside the distal end side of the support cylinder 21. The tip fixing portion 26 is formed with a smaller diameter than the inner surface 27 of the support tube 21. A tapered surface 28 is formed on the base side of the inner surface 27 and is fixed to the hand operation unit 13. Outside the tapered surface 28 where the tapered surface 28 is formed, three belt storage cases 30 for storing the end belt 20 are provided at 120 ° intervals around the insertion shaft 18 and are in contact with the inner wall of the intestinal tract. The endless belt 20 is moved in the direction of the insertion shaft 18 to propel the insertion portion 14 of the endoscope 12 in the intestinal tract.

ベルト巻取装置25は、ベルト収納ケース30に取り付けられ、2本の巻取軸24がベルト収納ケース30に突出して設けられている。有端ベルト20は両端が2本の巻取軸24のそれぞれに固定され、巻取軸24に巻き付けられてベルト収納ケース30にロール状に収容される。また、ベルト収納ケース30の内壁には、巻取軸24と平行に2本のテンションローラ31が立設され、有端ベルト20を押圧して有端ベルト20の撓みを吸収するようになっている。ベルト巻取装置25は、内蔵されたモータの回転方向を切り替えて巻取軸23の回転方向を変更することができる。巻取軸24の一方が有端ベルト20を送り出す方向に回転すると、同時に他方が有端ベルト20を巻き取る方向に回転する。   The belt winding device 25 is attached to the belt storage case 30, and two winding shafts 24 are provided so as to protrude from the belt storage case 30. Both ends of the end belt 20 are fixed to the two take-up shafts 24, wound around the take-up shaft 24, and accommodated in a roll storage case 30. In addition, two tension rollers 31 are erected on the inner wall of the belt storage case 30 in parallel with the winding shaft 24 so as to press the end belt 20 and absorb the bending of the end belt 20. Yes. The belt winding device 25 can change the rotation direction of the winding shaft 23 by switching the rotation direction of the built-in motor. When one of the winding shafts 24 rotates in the direction of feeding the end belt 20, the other simultaneously rotates in the direction of winding the end belt 20.

支持筒21は、外側の面35に複数の凸部36が、3本の有端ベルト20を避ける位置に飛び石状に形成されている。複数の凸部36はオーバーチューブ22の内側の面44に当接してオーバーチューブ22を支持する。ベルト収納ケース30はオーバーチューブ22を保持する保持部38を備え、オーバーチューブ22の根元側を支持筒21との間で挟持しオーバーチューブ22を固定する。   In the support cylinder 21, a plurality of convex portions 36 are formed on the outer surface 35 in a stepping stone shape so as to avoid the three end belts 20. The plurality of convex portions 36 abut on the inner surface 44 of the overtube 22 and support the overtube 22. The belt storage case 30 includes a holding portion 38 that holds the overtube 22, and clamps the base side of the overtube 22 between the support tube 21 and fixes the overtube 22.

オーバーチューブ22には、複数のベルト挿通孔33が挿入軸18に沿って一列に形成される。一列に形成されたベルト挿通孔33は、円周方向を3等分する3箇所にそれぞれ形成され、3本の有端ベルト20が挿通される。有端ベルト20はオーバーチューブ22を縫うようにベルト挿通孔33に挿通される。   A plurality of belt insertion holes 33 are formed in the overtube 22 in a line along the insertion shaft 18. The belt insertion holes 33 formed in a row are respectively formed at three locations that divide the circumferential direction into three equal parts, and the three end belts 20 are inserted therethrough. The end belt 20 is inserted into the belt insertion hole 33 so as to sew the overtube 22.

一方の巻取軸24から送り出された有端ベルト20は、オーバーチューブ22の内側を通って先端まで走行し、先端で外側に折り返された後に、一列に形成された複数のベルト挿通孔33に順に挿通され、オーバーチューブ22の外側と内側とを交互に通って、オーバーチューブ22の外側の面40とベルト収納ケース30の保持部38との間に形成された開口41からベルト収納ケース30の中に入って、他方の巻取軸24に巻き取られる。   The endless belt 20 fed out from one winding shaft 24 travels to the tip through the inside of the overtube 22 and is folded back to the outside at the tip, and then into a plurality of belt insertion holes 33 formed in a row. The belt storage case 30 is inserted through the opening 41 formed between the outer surface 40 of the overtube 22 and the holding portion 38 of the belt storage case 30. It goes inside and is wound around the other winding shaft 24.

オーバーチューブ22は、挿入部14と同様に数メートルの長さを有し、例えば、ゴムやウレタンなどの材質からなり、全長に亘って可撓性を有している。オーバーチューブ22は、先端側から数えて奇数番目のベルト挿通孔33Aと偶数番目のベルト挿通孔33Bの間の内側の面43が肉抜きされてベルト走行溝45が形成されている。この挿通孔33Aから挿通孔33Bまでの間隔は、挿通孔33Bから挿通孔33Aまでの間隔より短くなるように形成されている。ベルト走行溝45が形成された部分は肉抜きされた分だけ強度が低下するので、外圧に対して他より弱く、湾曲部16の曲がりに合わせて曲がり易くなっている。   The overtube 22 has a length of several meters like the insertion portion 14, is made of a material such as rubber or urethane, and has flexibility over the entire length. The overtube 22 has an inner surface 43 between the odd-numbered belt insertion holes 33 </ b> A and the even-numbered belt insertion holes 33 </ b> B counted from the front end side, and a belt running groove 45 is formed. The interval from the insertion hole 33A to the insertion hole 33B is formed to be shorter than the interval from the insertion hole 33B to the insertion hole 33A. Since the strength of the portion where the belt running groove 45 is formed is reduced by the amount of lightening, it is weaker than the others and is easily bent according to the bending of the curved portion 16.

次に挿入補助装置10の作用について説明する。挿入補助装置10の支持筒21の中に挿入部14を挿入し、先端固定部26を先端硬性部17に固定するとともにテーパ面28を手元操作部13に固定する。その後、プロセッサ装置、光源装置、制御装置等の電源をオンし、患者情報等を入力する。これらの作業を終えた後に、術者は、手元操作部13の把持部を把持しながら挿入部14、即ち、オーバーチューブ22が嵌合した支持筒21が取り付けられた挿入部14(以下、挿入部分という)を患者の腸管内に挿入する。   Next, the operation of the insertion assisting device 10 will be described. The insertion portion 14 is inserted into the support tube 21 of the insertion assisting device 10, the distal end fixing portion 26 is fixed to the distal end rigid portion 17, and the tapered surface 28 is fixed to the hand operating portion 13. Thereafter, the processor device, the light source device, the control device, and the like are turned on to input patient information and the like. After finishing these operations, the surgeon holds the insertion portion 14, that is, the insertion portion 14 to which the support tube 21 fitted with the overtube 22 is attached (hereinafter referred to as insertion) while holding the grip portion of the hand operation portion 13. Is inserted into the patient's intestinal tract.

挿入部分を挿入した後、操作ユニットを操作して3個のベルト巻取装置25を駆動し、有端ベルト20を図4に示される矢印51の方向に移動させる。有端ベルト20はオーバーチューブ22の外側を走行する部分が腸管内壁と接触するので、有端ベルト20によって腸管が手繰り寄せられ、これにより、挿入部分が腸管内を前進する。   After inserting the insertion portion, the operation unit is operated to drive the three belt winding devices 25, and the end belt 20 is moved in the direction of the arrow 51 shown in FIG. Since the portion of the end belt 20 that runs outside the overtube 22 contacts the inner wall of the intestinal tract, the intestinal tract is drawn by the end belt 20, whereby the insertion portion advances in the intestinal tract.

このとき、有端ベルト20のオーバーチューブ22の内側を走行する部分が、支持筒21とオーバーチューブ22との間で支持されているので、有端ベルト20は安定した走行が確保される。そして、挿入部分が腸管内に進入するほど有端ベルト20と腸管内壁との接触面積が増え、挿入補助装置10の推進力が効率よく腸管に伝達される。   At this time, since the portion of the end belt 20 that travels inside the overtube 22 is supported between the support tube 21 and the overtube 22, the endless belt 20 ensures a stable travel. As the insertion portion enters the intestinal tract, the contact area between the end belt 20 and the intestinal inner wall increases, and the driving force of the insertion assisting device 10 is efficiently transmitted to the intestinal tract.

また、操作ユニットのボタン操作により巻取軸24による有端ベルト20の巻取り速度を変更したり、モータの回転方向を切り替えて、有端ベルト20の走行方向を逆にして、挿入部分を腸管内から引き抜き易くすることもできる。   Further, by changing the winding speed of the endless belt 20 by the winding shaft 24 by operating the button of the operation unit, or by switching the rotation direction of the motor, the traveling direction of the endless belt 20 is reversed, and the insertion portion is in the intestine. It can also be easily pulled out from the inside.

上記実施形態では、有端ベルト20の本数を3本としたが、2本でも4本でも良く、適宜選択すれば良い。1本でも良いが、好ましくない。有端ベルト20を4本にした場合は、ベルト巻取装置25も4個になる。   In the above embodiment, the number of the endless belts 20 is three, but it may be two or four and may be appropriately selected. One is acceptable but not preferred. When the number of the end belts 20 is four, the belt winding devices 25 are also four.

以上説明した実施形態は、本発明による挿入補助装置を医療診断用の電子内視鏡に適用したものであるが、工業用等その他の内視鏡や超音波プローブといった管路観察用器具に適用してもよい。   In the embodiment described above, the insertion assisting device according to the present invention is applied to an electronic endoscope for medical diagnosis. However, the embodiment is applied to other endoscopes for industrial use, such as an endoscope and an ultrasonic probe. May be.

10 挿入補助装置(内視鏡用挿入補助装置)
12 内視鏡
13 手元操作部
14 挿入部
20 有端ベルト
21 支持筒
22 オーバーチューブ
24 巻取軸
25 ベルト巻取装置
33 ベルト挿通孔
10 Insertion assistance device (insertion assistance device for endoscope)
DESCRIPTION OF SYMBOLS 12 Endoscope 13 Hand operation part 14 Insertion part 20 Ended belt 21 Support cylinder 22 Overtube 24 Winding shaft 25 Belt winding device 33 Belt insertion hole

Claims (8)

内視鏡の挿入部に装着され、体腔内壁に接触するN本の有端ベルトを前記内視鏡の挿入軸の方向に移動させて、前記内視鏡の挿入部を推進させる内視鏡挿入補助装置であって、
前記挿入部の略全長が挿入されるとともに、一端側が前記内視鏡の手元操作部に固定される支持筒と、
前記支持筒を覆うように外嵌され支持されるとともに、前記挿入軸に沿って一列に形成され前記有端ベルトが縫うように挿通される複数のベルト挿通孔が、円周方向をN等分するN箇所にそれぞれ形成されたオーバーチューブと、
前記支持筒の前記手元操作部側に設けられるとともに、前記有端ベルトの両端がそれぞれ固定され前記有端ベルトの送り出しと巻き取りとを行う2本の巻取軸を有するN個のベルト巻取装置と、
を備えたことを特徴とする内視鏡用挿入補助装置。
Endoscope insertion for propelling the insertion part of the endoscope by moving N end belts attached to the insertion part of the endoscope and contacting the inner wall of the body cavity in the direction of the insertion axis of the endoscope An auxiliary device,
A support cylinder in which substantially the entire length of the insertion portion is inserted and one end side is fixed to a hand operation portion of the endoscope;
A plurality of belt insertion holes that are externally fitted and supported so as to cover the support cylinder and that are inserted in a row along the insertion shaft so as to sew the endless belt are divided into N equal parts in the circumferential direction. An overtube formed at each of N locations,
N belt take-ups provided on the hand operating part side of the support tube, and having two take-up shafts that are fixed at both ends of the endless belt and feed and take up the endless belt. Equipment,
An insertion assisting device for an endoscope, comprising:
前記Nは3であることを特徴とする請求項1記載の内視鏡用挿入補助装置。   The endoscope insertion assisting apparatus according to claim 1, wherein N is three. 前記巻取装置は、前記巻取軸の回転方向が切り替え自在とされるとともに、前記巻取軸の一方が前記有端ベルトを送り出す方向に回転すると同時に、他方が前記有端ベルトを巻き取る方向に回転することを特徴とする請求項1又は2記載の内視鏡用挿入補助装置。   In the winding device, the rotation direction of the winding shaft is freely switchable, and at the same time one of the winding shafts rotates in the direction of feeding out the end belt, and the other direction winds the end belt. The endoscope insertion assisting device according to claim 1 or 2, wherein the endoscope insertion assisting device rotates. 前記支持筒とオーバーチューブはともに可撓性を有し、前記オーバーチューブの内側の面に当接して前記オーバーチューブを支持する複数の凸部が前記支持筒の外側の面に形成されたことを特徴とする請求項1〜3いずれか記載の内視鏡用挿入補助装置。   Both the support tube and the overtube have flexibility, and a plurality of convex portions that contact the inner surface of the overtube and support the overtube are formed on the outer surface of the support tube. The insertion assisting device for an endoscope according to any one of claims 1 to 3. 前記巻取軸の一方から送り出された前記有端ベルトは、前記オーバーチューブの内側を通って先端まで走行し、先端で外側に折り返された後に、前記一列に形成された複数のベルト挿通孔に順に挿通されて前記オーバーチューブの外側と内側とを交互に走行し、その後、前記巻取軸の他方に巻き取られることを特徴とする請求項1〜4いずれか記載の内視鏡用挿入補助装置。   The endless belt fed from one of the winding shafts travels to the tip through the inside of the overtube, and after being folded outward at the tip, the plurality of belt insertion holes formed in one row The insertion aid for an endoscope according to any one of claims 1 to 4, wherein the insertion aid is inserted in order and travels alternately on the outer side and the inner side of the overtube and then wound on the other of the winding shafts. apparatus. 前記オーバーチューブは、先端側から数えて奇数番目の前記ベルト挿通孔と偶数番目の前記ベルト挿通孔の間の内側の面が肉抜きされて、ベルト走行溝が形成されたことを特徴とする請求項5記載の内視鏡用挿入補助装置。   The overtube has a belt running groove formed by hollowing an inner surface between the odd-numbered belt insertion holes and the even-numbered belt insertion holes counted from the front end side. Item 6. The endoscope insertion assisting device according to Item 5. 隣合う前記ベルト挿通孔の間隔は、前記先端側から数えて偶数番目と奇数番目の間より、奇数番目と偶数番目の間の方が短いことを特徴とする請求項5又は6記載の内視鏡用挿入補助装置。   The internal view according to claim 5 or 6, wherein the interval between the adjacent belt insertion holes is shorter between the odd number and the even number than between the even number and the odd number when counted from the tip side. Mirror insertion assist device. 前記有端ベルトは、生体適合プラスチックで形成されていることを特徴とする請求項1〜7いずれか記載の内視鏡用挿入補助装置。   The endoscope insertion assisting device according to any one of claims 1 to 7, wherein the endless belt is made of a biocompatible plastic.
JP2011056342A 2011-03-15 2011-03-15 Endoscope insertion assisting device Withdrawn JP2012191976A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012191980A (en) * 2011-03-15 2012-10-11 Fujifilm Corp Endoscope mounting fixture
JP2012191977A (en) * 2011-03-15 2012-10-11 Fujifilm Corp Self-propelled device for endoscope
JP2012191979A (en) * 2011-03-15 2012-10-11 Fujifilm Corp Endoscope insertion aid
CN105942958A (en) * 2016-05-30 2016-09-21 上海熠达光电科技有限公司 An endoscope bend angle operating rocker and an endoscope

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012191980A (en) * 2011-03-15 2012-10-11 Fujifilm Corp Endoscope mounting fixture
JP2012191977A (en) * 2011-03-15 2012-10-11 Fujifilm Corp Self-propelled device for endoscope
JP2012191979A (en) * 2011-03-15 2012-10-11 Fujifilm Corp Endoscope insertion aid
CN105942958A (en) * 2016-05-30 2016-09-21 上海熠达光电科技有限公司 An endoscope bend angle operating rocker and an endoscope

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