JP2003339631A - Endoscope insertion assisting tool - Google Patents

Endoscope insertion assisting tool

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Publication number
JP2003339631A
JP2003339631A JP2002149540A JP2002149540A JP2003339631A JP 2003339631 A JP2003339631 A JP 2003339631A JP 2002149540 A JP2002149540 A JP 2002149540A JP 2002149540 A JP2002149540 A JP 2002149540A JP 2003339631 A JP2003339631 A JP 2003339631A
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portion
endoscope insertion
fin
endoscope
part
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JP2002149540A
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Japanese (ja)
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Hitoshi Ito
仁 伊藤
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Olympus Optical Co Ltd
オリンパス光学工業株式会社
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Abstract

<P>PROBLEM TO BE SOLVED: To keep the position of an endoscope insertion part and to facilitate the insertion of the endoscope insertion part by making the endoscope easily insertable in the case of thrusting operation and increasing resistance in the case of pulling operation though an operator does not make special operation. <P>SOLUTION: This endoscope insertion assisting tool 3 comprises a fixing part 31 and four protrusion parts 32 in the form of fins. The fixing part 31 is mounted on the endoscope insertion part 11. The four protrusion parts 32 are in the shape of soft and flat thin plates and project from the outer surface of the fixing part 31 at a prescribed angle obliquely backward with respect to an inserting direction into a body cavity tube. Each protrusion part 32 comprises a hard part 33 and a soft part 34 provided at a part of its periphery. Material for the protrusion parts 32 can be selected from optional elastic materials such as silicon rubber, fluororubber, polyurethane, etc. <P>COPYRIGHT: (C)2004,JPO

Description

【発明の詳細な説明】 【0001】 【発明の属する技術分野】本発明は、内視鏡挿入部に一体または着脱自在に固定され、内視鏡挿入部の体腔内への挿入の補助を行う内視鏡挿入補助具に関する。 BACKGROUND OF THE INVENTION [0001] [Technical Field of the Invention The present invention is integrally or detachably fixed to the endoscope insertion section, performs an auxiliary insertion into the endoscope insertion portion in the body cavity an endoscope insertion aid. 【0002】 【従来の技術】従来、手術に用いる内視鏡装置の一例として、内視鏡の挿入部の先端部に対物レンズ、ライトガイド、空気・水送り口及び吸引口を配設して形成したものがある。 [0004] Conventionally, an example of the endoscope apparatus to be used in surgery, the objective lens at the distal end portion of the insertion portion of the endoscope, a light guide, and arranged an air-water feed port and the suction port there are things that were formed. このような内視鏡装置では、ライトガイドから生体組織等の被写体に光を当て、この光を当てた被写体を対物レンズを介して視認し、空気・水送り口より送出した空気或いは水やその他の物質を吸引口で吸引し得るようになっている。 In such an endoscope apparatus, a light guide illuminated on the object such as living tissue from the subject in which illuminated viewing through an objective lens, air or water or other has been sent from the air-water feed port It has a substance to be sucked in the suction port. 【0003】ところで、例えば腸管等の湾曲のある体腔に内視鏡を挿入する場合には、内視鏡の手元の操作部で操作することにより内視鏡先端側の湾曲部を湾曲させながら体腔内に挿入して行くが、腸管は湾曲する箇所が多いため、内視鏡先端に引っ掛かる場合が多々あり、挿入に時間を要してしいた。 Meanwhile, for example when inserting the endoscope into the body cavity with a curved intestinal, etc., while bending the bending portion of the endoscope distal end by manipulating at hand of the operation portion of the endoscope body cavity Although we inserted within, because intestinal tract often locations curved, there are many cases caught by the endoscope distal end, it takes time to insert Shiita. 【0004】このことに対応して、米国特許4,20 [0004] In response to this, the United States Patent 4, 20
7,872号に記載の内視鏡挿入補助具は、内視鏡挿入部に装着するスリーブに弾性突起を設け、この突起に流体を周期的に導入して外方後方に突出させ且つ該体腔を接触させて内視鏡挿入部を前進させ、次に流体をこの突起から排出して前記突起をスリーブ内に引き込ませている。 The endoscope insertion aid according to Patent 7,872, the elastic projections provided on the sleeve to be attached to the endoscope insertion portion, and the body cavity by introducing a fluid periodically protrude outwardly rearwardly to the projection It is contacted to advance the endoscope insertion portion, and then retract the projection to drain fluid from the projections in the sleeve. 【0005】このような突起の動作により、前記内視鏡挿入補助具は、湾曲する箇所が多い腸管でも容易に挿入できるようにしている。 [0005] By operation of the projection, the endoscope insertion aid is to allow easy insertion in the intestinal tract portion which is curved in many cases. 【0006】 【発明が解決しようとする課題】しかしながら、米国特許4,207,872号に記載の内視鏡挿入補助具は、 [0006] The present invention is, however, the endoscope insertion aid according to U.S. Pat. No. 4,207,872, the
内視鏡挿入部に装着するスリーブに設けた各突起を膨張・収縮させるための管路や、流体圧制御手段が必要であり、作業性が煩雑になるばかりでなく、コストが高くなっていた。 Conduit and for each projection provided on the sleeve to be attached to the endoscope insertion portion is expanded and contracted, it is necessary fluid pressure control unit, operability is not only becomes complicated, the cost was higher . また、前記スリーブに設けた突起が突出したままの状態であると、内視鏡挿入部を抜去させる際、この突起が例えば腸管等の体腔に引っ掛かって内視鏡が抜けなくなる虞があるため、内視鏡挿入部を抜去する際には前記突起を収縮させる必要があり、そのための操作が煩雑でわずらわしかった。 Further, when the projection provided on said sleeve is in a state protruding, when for withdrawing the endoscope insertion portion, since there is a fear that the projections can not escape the endoscope caught a body cavity, for example the intestinal tract such as, when withdrawing the endoscope insertion portion needs to contract the projection operation therefor was troublesome complicated. 【0007】また、内視鏡検査中に前記スリーブが徐々に内視鏡挿入部から外れてしまうことで、挿入性や観察・処置性が悪化する虞があった。 [0007] Also, by the sleeve during the endoscopic examination deviates from the endoscope insertion portion gradually, there is a possibility that insertability and observation and treatment deteriorates. 【0008】本発明は、上記事情に鑑みてなされたものであり、操作者が特別な作業をしなくても、押し操作の時には進みやすく、引き操作の時には抵抗が増すことで内視鏡挿入部の位置を保持し、内視鏡挿入部の挿入性を向上することができる内視鏡挿入補助具を提供することを目的とする。 [0008] The present invention has been made in view of the above circumstances, even without the operator extra work, easily proceeds at the time of pressing operation, the endoscope insertion by the time of pulling operation resistance increases holding the position of the parts, and an object thereof is to provide an endoscope insertion aid which can improve the insertability of the endoscope insertion portion. 【0009】また、本発明は、操作者が特別な作業をしなくても、押し操作の時には進みやすく、引き操作の時には抵抗が増すことで内視鏡挿入部の位置を保持し、内視鏡挿入部の挿入性を向上することができるとともに、 Further, the invention even without the operator extra work, easily proceeds at the time of pressing operation, and maintaining the position of the endoscope insertion portion by the resistance increases at the time of pulling operation, endoscopic it is possible to improve the insertability of the mirror insertion portion,
前記内視鏡を体腔内に挿入する際に患者に与える違和感を小さくすることが可能な内視鏡挿入補助具を提供することを目的とする。 And an object thereof is to provide an endoscope insertion aid capable of reducing a sense of discomfort to the patient upon inserting the endoscope into a body cavity. 【0010】また、本発明は、操作者が特別な作業をしなくても、押し操作の時には進みやすく、引き操作の時には抵抗が増すことで内視鏡挿入部の位置を保持し、内視鏡挿入部の挿入性を向上することができるとともに、 Further, the present invention, even without the operator extra work, easily proceeds at the time of pressing operation, and maintaining the position of the endoscope insertion portion by the resistance increases at the time of pulling operation, endoscopic it is possible to improve the insertability of the mirror insertion portion,
前記内視鏡挿入補助具の内視鏡挿入部への着脱性を向上させることが可能な内視鏡挿入補助具を提供することを目的とする。 And an object thereof is to provide an endoscope insertion aid which can improve the detachability of the the endoscope insertion portion of the endoscope insertion aid. 【0011】 【課題を解決するための手段】前記目的を達成するため請求項1に記載の内視鏡挿入補助具は、内視鏡挿入部に一体または着脱自在に固定される固定部と、体腔内への挿入方向に対して斜め後方または後方に向かって突出した状態で前記固定部に少なくとも1つ接続される柔軟な薄肉状のヒレ状突起部と、を具備し、前記固定部を前記内視鏡挿入部に固定した状態でこの内視鏡挿入部を体腔管内で引き操作するとき、前記ヒレ状突起部が体腔管壁に当接することで、体腔管内での前記内視鏡挿入部の位置を保持する内視鏡挿入補助具であって、前記ヒレ状突起部の周縁部分の少なくとも一部を、前記ヒレ状突起部が前記固定部に接続される部分の一部よりも軟性にしたことを特徴とする。 [0011] Means for Solving the Problems] The endoscope insertion aid according to claim 1 for achieving the above object, a fixed portion which is integrally or detachably fixed to the endoscope insertion part, comprising at least one connected thereto a flexible thin-walled fin protrusions, to the fixed part in a state projecting obliquely rearward or backward with respect to the insertion direction into the body cavity, the said fixed part when the endoscope insertion portion in a state of being fixed to the endoscope insertion portion is pulled in the body cavity tract, that the fin-like projection is in contact with the body cavity tube wall, the endoscope insertion portion in the body cavity tract the endoscope insertion aid for holding a position, at least a portion of the peripheral portion of the fin-like protrusions, the flexible than a part of the portion where the fin-like projections are connected to the fixed part characterized in that it was. 【0012】 【発明の実施の形態】以下、本発明の実施の形態を図面を参照して説明する。 DETAILED DESCRIPTION OF THE INVENTION Hereinafter, an embodiment of the present invention with reference to the drawings. (第1の実施の形態)図1ないし図8は本発明の第1の実施の形態に係り、図1は内視鏡挿入補助具を備えた内視鏡装置を示す外観図、図2は図1の内視鏡挿入部に装着される内視鏡挿入補助具を示す斜視図、図3は内視鏡挿入補助具を固定部の長手中心軸で切断した場合の半断面図、図4は図3とは別の例の内視鏡挿入補助具を固定部の長手中心軸で切断した場合の半断面図、図5は内視鏡挿入補助具を内視鏡挿入部に装着した様子を示す説明図、図6乃至図8は内視鏡挿入部を大腸のS状結腸から下行結腸に挿入していく様子を示す説明図である。 (First Embodiment) FIGS. 1-8 relate to a first embodiment of the present invention, FIG. 1 is an external view showing an endoscope apparatus having an endoscope insertion aid, 2 perspective view showing an endoscope insertion aid mounted on the endoscope insertion portion of Fig. 1, Fig 3 is a half cross-sectional view taken endoscope insertion aid in the longitudinal central axis of the fixing portion, FIG. 4 state of mounting a half cross-sectional view taken along the longitudinal central axis of the fixed portion of the endoscope insertion aid of another example and Fig. 3, Fig. 5 is an endoscope insertion aid in the endoscope insertion portion explanatory view showing the FIG. 6 through FIG. 8 is an explanatory diagram showing how to insert the descending colon of the endoscope insertion portion from the S-shaped colon of the large intestine. 【0013】(構成)図1に示すように、本発明の第1 [0013] (Configuration) As shown in FIG. 1, a first aspect of the present invention
の実施の形態に係る内視鏡装置1は、細長で可とう性の挿入部11を有する内視鏡2と、この内視鏡2の挿入部11(以下、内視鏡挿入部11と呼ぶ)に装着される内視鏡挿入補助具3とから主に構成される。 Called the endoscope apparatus 1 according to the embodiment, the endoscope 2 has an insertion portion 11 of the flexible in thin length, the insertion portion 11 of the endoscope 2 (hereinafter, the endoscope insertion portion 11 ) mainly composed of the endoscope insertion aid 3 which is mounted on. 【0014】前記内視鏡2は、前記内視鏡挿入部11と操作部12とから主に構成される。 [0014] The endoscope 2 is mainly composed of the operation unit 12. and the endoscope insertion portion 11. 前記内視鏡2の操作部12(以下、内視鏡操作部12と呼ぶ)は、前記内視鏡挿入部11の基端側に連設され、把持部を兼ねている。 The operation unit 12 the endoscope 2 (hereinafter, referred to as an endoscope operation portion 12) is connected to the proximal end of the endoscope insertion portion 11, also serves as a grip portion. 前記操作部12の側部からはユニバーサルコード1 Universal cord 1 from the side of the operation portion 12
3が延出している。 3 is extended. ユニバーサルコード13の端部には図示しないコネクタが設けられている。 Connector (not shown) is provided at an end portion of the universal cord 13. 内視鏡2は、ユニバーサルコード13のコネクタを光源装置およびビデオプロセッサに接続するようになっている。 The endoscope 2 is adapted to connect the connector of the universal cord 13 to the light source device and a video processor. 【0015】前記内視鏡挿入部11は、先端側から順に先端部21と、湾曲部22、軟性部23とを連設して構成されている。 [0015] The endoscope insertion portion 11 includes a distal end portion 21 from the distal end side in order, the bending portion 22, and a flexible portion 23 is constructed by continuously provided. 【0016】湾曲部22は所望の方向に湾曲自在になっている。 The bending portion 22 is in a bendable in a desired direction. 軟性部23は、可とう性を有する柔軟な部材で形成されている。 Flexible portion 23 is formed in a flexible member having flexibility. 【0017】前記内視鏡挿入部11の先端部21(以下、挿入部先端部21と呼ぶ)は先端カバー24で被覆されている。 The distal end portion 21 of the endoscope insertion portion 11 (hereinafter, referred to as the insertion portion distal end portion 21) is covered with the distal end cover 24. 前記湾曲部22は湾曲ゴム25で被覆されている。 The bending portion 22 is covered with bending rubber 25. 【0018】前記内視鏡操作部12には、湾曲操作ノブ14が設けられている。 [0018] The endoscope operation portion 12 is provided with a bending operation knob 14. この湾曲操作ノブ14は、回動操作することで、前記湾曲部22を湾曲動作させるようになっている。 The bending operation knob 14 by rotating operation, so that the curving operation of the curved portion 22. 【0019】また、前記内視鏡挿入部11には、前記挿入部先端部21と前記湾曲部22との接続部分に、例えば接着剤等を盛り上げて形成した凸部26が設けられている。 Further, in the endoscope insertion portion 11, the connecting portion between the insertion portion distal end portion 21 and the bending portion 22, the convex portion 26 is provided which is formed for example boost the adhesive. また、前記内視鏡挿入部11は前記湾曲部22と前記軟性部23との接続部分にも前記凸部26と同様な凸部27が設けられている。 Also, the endoscope insertion portion 11 is the curved portion 22 similar to the convex portion 26 to the connection portion between the flexible portion 23 convex portion 27 is provided. 【0020】前記内視鏡挿入補助具3は、体腔管内で前記内視鏡挿入部11の位置を保持するためのものである。 [0020] The endoscope insertion aid 3 is for holding the position of the endoscope insertion portion 11 in the body cavity tract. 【0021】次に、図2を用いて前記内視鏡挿入補助具3について詳細に説明する。 Next, it will be described in detail the endoscope insertion aid 3 with reference to FIG. 図2に示すように、前記内視鏡挿入補助具3は、固定部31と4個のヒレ状突起部32とで構成されている。 As shown in FIG. 2, the endoscope insertion aid 3, and a fixing portion 31 and four fin-like projections 32. 【0022】固定部31は、円筒状に形成され、前記内視鏡挿入部11に装着される。 The fixing portion 31 is formed in a cylindrical shape, it is mounted in the endoscope insertion portion 11. 4個のヒレ状突起部32 Four fin-like projections 32
は、柔軟で平たい薄肉形状となっており、体腔管内への挿入方向に対して斜め後方の所定の角度で前記固定部3 Is a flexible, flat thin shape, the fixing unit 3 at a predetermined angle obliquely rearward with respect to the insertion direction to a body cavity tube
1の外表面から突出している。 It protrudes from the first outer surface. 【0023】ヒレ状突起部32の材質としては、シリコンゴムや、フッ素ゴムや、ポリウレタン等の任意の弾性材料から選択可能である。 Examples of the material of the fin-shaped projections 32, and silicone rubber, fluorine rubber, can be selected from any elastic material such as polyurethane. また固定部31は、ヒレ状突起部32と同材質で形成してもよいし、異種の弾性材料を組み合わせて使用しても構わないばかりではなく、さらに、金属やプラスチック等の剛性材料を使用しても構わない。 Fixing unit 31 also includes, to the fin-like projections 32 may be formed of the same material, not only may be used in combination an elastic material different, further, use a rigid material such as metal or plastic it may also be. 【0024】これらヒレ状突起部32は、硬性部33とその周縁の一部に設けた軟性部34とから構成される。 [0024] These fin-like projections 32 is comprised of a rigid portion 33 and the flexible portion 34 for providing a portion of its periphery. 【0025】次に、図3を用いて内視鏡挿入補助具3の構造について詳細に説明する。 Next, it will be described in detail the structure of the endoscope insertion aid 3 with reference to FIG. ここで図3の矢印Aは、 Wherein arrow A in FIG. 3,
前記固定部31の長手中心軸(前記内視鏡挿入部11の挿入方向)に対する垂直な面において、外側から内視鏡挿入補助具3を見ている方向を示す。 In a plane perpendicular relative to the longitudinal central axis (insertion direction of the endoscope insertion portion 11) of the fixing part 31, indicating the direction looking at the endoscope insertion aid 3 from outside. 図3に示すように、前記内視鏡挿入補助具3は、矢印A方向から見える側の面を表面とし、前記固定部31の長手中心軸から半径方向に見える面を裏面とする。 As shown in FIG. 3, the endoscope insertion aid 3, and the surface of the surface on the side visible from the direction of arrow A, to the visible face in the radial direction and the back side from the longitudinal center axis of the fixing portion 31. 【0026】内視鏡挿入補助具3は、図1に示した前記内視鏡挿入部11の前記湾曲部22に装着され、後述の図6乃至図8で説明するように前記内視鏡挿入部11を体腔管内に挿入して用いられる。 The endoscope insertion aid 3 is attached to the curved portion 22 of the endoscope insertion portion 11 shown in FIG. 1, the endoscope insertion as described in FIGS. 6-8 below used the part 11 is inserted into the body cavity tract. そして前記内視鏡挿入補助具3は、内視鏡挿入部11を引き操作するとき、前記ヒレ状突起部32が体腔管壁に当接し、図3の破線で示すように前記ヒレ状突起部32が捲れるように変形し体腔管壁を当接することで、体腔管内での前記内視鏡挿入部11の位置を保持するようになっている。 And the endoscope insertion aid 3, when operating pull the endoscope insertion portion 11, the fin-like protrusion 32 comes into contact with the body cavity tube wall, the fin-like projections as shown by the broken line in FIG. 3 32 by abutting the deformed body cavity tube wall as Makureru, adapted to hold the position of the endoscope insertion portion 11 in the body cavity tract. 【0027】本実施の形態においては、前記内視鏡挿入部11の引き操作を行う際に前記ヒレ状突起部32が体腔管壁に当接する前記ヒレ状突起部32の周縁部分に、 [0027] In this embodiment, the peripheral portion of the fin-like projections 32 in which the fin-like protrusion 32 when performing pulling operation of the endoscope insertion portion 11 is brought into contact with the body cavity tube wall,
中心部分の硬性部33よりも軟性の部材を配設して軟性部34が構成されている。 Flexible portion 34 and disposed member flexible than the center portion of the rigid portion 33 is constituted. 【0028】この軟性部34は、図3に示すように、矢印Aから見た場合の前記ヒレ状突起部32の周縁部分のみに配設してもよいし、図4に示すように半断面をとった場合の周縁部分、すなわち前記ヒレ状突起部32の表面および裏面を覆うようにそれぞれ配設してもよい。 [0028] The flexible portion 34, as shown in FIG. 3, may be disposed only on the peripheral portion of the fin-shaped projections 32 as viewed from the arrow A, semi-cross-section as shown in FIG. 4 peripheral portion of the case taken, ie may be respectively disposed to cover the front and back surfaces of the fin-shaped projections 32. 【0029】(作用)第1の実施の形態では、前記内視鏡挿入補助具3は、図5に示すように前記内視鏡挿入部11に装着して用いられる。 [0029] (Function) In the first embodiment, the endoscope insertion aid 3 is used by mounting on the endoscope insertion portion 11 as shown in FIG. 【0030】前記内視鏡挿入部11は、前記凸部26と凸部27の間にある前記湾曲部22の先端側に1個の前記内視鏡挿入補助具3が装着されるようになっている。 [0030] The endoscope insertion portion 11, so that the endoscope insertion aid 3 of one on the distal end side of the bending portion 22 located between the convex portion 26 and the convex portion 27 is attached ing.
ここで前記湾曲部22は、略円柱状であり、略円筒状に形成されている前記内視鏡挿入補助具3の固定部31の内径よりも、外径が大きく形成されている。 The bending portion 22 herein is a substantially cylindrical shape, than the inner diameter of the fixing portion 31 of the endoscope insertion aid 3 formed in a substantially cylindrical shape, the outer diameter is larger. このため前記内視鏡挿入補助具3の固定部31は、前記湾曲部22 Fixing unit 31 of this for the endoscope insertion aid 3, the curved portion 22
を締め付けるように装着され、装着後は簡単に外れないようになっている。 Mounted to clamp the after mounting is adapted not easily disengaged. 【0031】また前記凸部26は、前記内視鏡挿入補助具3の前記内視鏡挿入部11における軸方向の位置を定める指標となっているとともに、固定部31が前方へずれることを規制している。 [0031] The convex portion 26, with which is an index for determining the axial position of the endoscope insertion portion 11 of the endoscope insertion aid 3, restricted from fixing unit 31 is shifted forward are doing. 【0032】そして、前記内視鏡挿入部11に前記内視鏡挿入補助具3を装着した前記内視鏡2は、図6に示すように患者の体腔内に挿入されて内視鏡検査等を行う。 [0032] Then, the endoscope 2 of the endoscope insertion aid 3 in the endoscope insertion portion 11 is mounted, endoscopy or the like is inserted into a body cavity of a patient as shown in FIG. 6 I do. 【0033】図6乃至図8は、前記内視鏡挿入部11を大腸のS状結腸41から下行結腸42に挿入していく様子を示し、図6は前記内視鏡挿入部11の挿入部先端部21がS状結腸41途中の屈曲部に入ったところを示す説明図、図7は図6の状態からから前記内視鏡挿入部1 [0033] FIGS. 6 to 8 show how to continue to insert the descending colon 42 to the endoscope insertion portion 11 from the S-shaped colon 41 colon, 6 insertion portion of the endoscope insertion portion 11 explanatory view showing a place where the tip 21 enters the bent portion of the middle S-shaped colon 41, FIG. 7 is the endoscope insertion portion 1 from the state of FIG. 6
1を矢印B方向に引き操作した場合の腸壁43の挙動を示した説明図、図8は同図7の状態から更に前記内視鏡挿入部11を矢印B方向に引き操作して、S状結腸41 1 shows the behavior of the intestinal wall 43 in the case of pulled in the direction of arrow B illustration, FIG. 8 are pulled to the endoscope insertion portion 11 further from the state of FIG. 7 in the direction of arrow B, S Jo colon 41
から下行結腸42が略直線状になった場合の説明図である。 It is an explanatory diagram of the case where the descending colon 42 becomes substantially linearly from. 【0034】図6に示すように、前記内視鏡挿入部11 As shown in FIG. 6, the endoscope insertion portion 11
の挿入部先端部21がS状結腸41途中の屈曲部に入るまでは、前記内視鏡2を操作する操作者は押し操作をしながら前記内視鏡挿入部11を挿入していく。 The insertion portion distal end portion 21 until it enters the bent portion of the middle S-shaped colon 41, the operator who operates the endoscope 2 is gradually inserting the endoscope insertion portion 11 while the pressing operation. 【0035】前記ヒレ状突起部32は、前記固定部31 [0035] The fin-shaped protrusion 32, the fixing portion 31
から前記内視鏡挿入部11の挿入方向に対して後方もしくは斜め後方に向かって突出しており、かつ前記ヒレ状突起部32は柔軟な薄肉状の部材で形成されているため、この押し操作に際して前記ヒレ状突起部32が体腔管壁(図6乃至図8の場合の腸壁43)に当接したとしても、前記ヒレ状突起部32は前記内視鏡挿入部11に当接する方向に窄まるように容易に倒れるため、前記内視鏡挿入部11を押し操作する場合の抵抗は前記内視鏡挿入補助具3を装着しない場合と比べてもほとんど増加することなく、スムーズに挿入を行うことができる。 Since protrudes rearward or obliquely rearward, and the fin-like protrusion 32 is formed of a flexible thin-walled member with respect to the insertion direction of the endoscope insertion portion 11, during the press operation even contact with the (intestinal wall 43 in the case of FIGS. 6-8) said fin-like projections 32 are cavity tube wall, the fin-like protrusion 32 窄 a direction abutting on the endoscope insertion portion 11 because so easily fall circle, resistance when operating pushes the endoscope insertion portion 11 performs almost without increasing, the smooth insertion even than without wearing the endoscope insertion aid 3 be able to. 【0036】操作者が、前記内視鏡挿入部11の挿入部先端部21がS状結腸41途中の屈曲部に入った図6の状態からそのまま押し操作を続けても、S状結腸41は伸ばされてしまうために、前記内視鏡挿入部11の挿入部先端部21は下行結腸42の入り口からむしろ遠ざかってしまう。 The operator, be followed directly pressed from the state shown in FIG. 6 the insertion portion distal end portion 21 of the endoscope insertion portion 11 enters the bent portion of the middle S-shaped colon 41, S-shaped colon 41 to become stretched, the insertion portion distal end portion 21 of the endoscope insertion portion 11 would away rather from the entrance to the descending colon 42. 【0037】そこで操作者は、前記内視鏡挿入部11を押し操作するのではなく、引き操作をする。 [0037] Therefore the operator, rather than pressed the endoscope insertion portion 11, the pulling operation. すると図7 Then 7
に示すように、前記内視鏡挿入補助具3のヒレ状突起部32の端部は腸壁43に当接し捲れあがるが、前記ヒレ状突起部31は柔軟な弾性部材で形成されているため元の形に戻ろうとする力が腸壁43に加わり、腸壁43との摩擦が増大する。 As shown in the end portion of the endoscope insertion aid 3 of fin-like projections 32 are raised abuts curled the intestinal wall 43, since the fin-like protrusion 31 is formed of a flexible resilient member force to return to its original shape is applied to the intestinal wall 43, friction with the intestinal wall 43 is increased. 【0038】このように前記内視鏡挿入補助具3は、腸壁43に対する前記ヒレ状突起部32の抵抗を増大させることで、操作者の手元側にS状結腸41の一部を図7 [0038] The endoscope insertion aid 3 in this way, to increase the resistance of the fin-like protrusion 32 against the intestinal wall 43, FIG. 7 a part of the S-shaped colon 41 on the proximal side of the operator
のように折り畳むことができる。 It can be folded like. つまり前記内視鏡挿入補助具3は、前記内視鏡挿入部11の引き操作によりS That the endoscope insertion aid 3, S by the pulling operation of the endoscope insertion portion 11
状結腸41を短縮化し、その短縮化された部分をヒレ状突起部32が保持するようになる。 The Jo colon 41 was shortened, the shortened portion thereof fin protrusions 32 come to hold. 【0039】ここで、前記内視鏡挿入補助具3を装着しない内視鏡挿入部11は、ヒレ状突起部32を設けていないので、S状結腸41の短縮された状態を保持することが容易でなく、操作者が前記内視鏡挿入部11を引き操作したとき、前記内視鏡挿入部11の挿入部先端部2 [0039] Here, the endoscope insertion portion 11 is not equipped with the endoscope insertion aid 3, because not provided with fin-like projections 32, to retain a shortened state of the S-shaped colon 41 easy but, when the operator operates pulling the endoscope insertion portion 11, the insertion portion distal end portion 2 of the endoscope insertion portion 11
1側がそのままS状結腸41から抜けてしまう確率が高い。 A high probability of 1 side comes off from the S-shaped colon 41 as it is. 【0040】本実施の形態では、内視鏡挿入補助具3は固定部31にヒレ状突起部32を設けているので、図7 [0040] In this embodiment, since the endoscope insertion aid 3 is provided with a fin-shaped projections 32 on the fixing portion 31, FIG. 7
に示すような状態を形成しやすくなっている。 Has state easily formed as shown in. 【0041】ここで、図7に示すような状態で、前記内視鏡挿入部11の挿入部先端部21は下行結腸42の入り口に近づいてくるので、操作者は更に引き操作と湾曲操作を行うことで、図8に示すようにS状結腸41から下行結腸42にかけて略直線状とすることができる。 [0041] Here, in a state shown in FIG. 7, the insertion portion distal end portion 21 of the endoscope insertion portion 11 comes close to the entrance of the descending colon 42, the operator further pulls the operation and bending operation by performing, it can be made substantially straight toward the descending colon 42 from S-shaped colon 41 as shown in FIG. そして操作者は前記内視鏡挿入部11を押し操作することで、前記挿入部先端部21を下行結腸42の深部へと挿入させることができる。 The operator by manipulating press the endoscope insertion portion 11, the insertion portion distal end portion 21 can be inserted into the deep portion of the descending colon 42. 【0042】このように、前記内視鏡挿入部11に装着した前記内視鏡挿入補助具3は、内視鏡挿入部11が押し操作により進む方向と、引き操作されて引かれる方向とで腸壁43に対する抵抗が大きく異なる。 [0042] In this manner, the endoscope insertion aid 3 mounted on the endoscope insertion portion 11, a direction of travel by pushing the endoscope insertion portion 11 operation, the direction drawn is pulled resistance to the intestinal wall 43 is significantly different. これにより、前記内視鏡挿入補助具3は、押し操作時の挿入性を損なうことなく、腸の短縮化を容易にすることが可能となる。 Thus, the endoscope insertion aid 3, without impairing the insertion property during press operation, it is possible to facilitate the shortening of the intestine. 【0043】前記内視鏡挿入補助具3は、前記内視鏡挿入部11の引き操作をすると、通常最初にヒレ状突起部32の軟性部34が腸壁43に当たる。 [0043] The endoscope insertion aid 3, when the pulling operation of the endoscope insertion portion 11, typically first flexible portion 34 of the fin-shaped projections 32 strikes the intestinal wall 43. この軟性部34 The flexible portion 34
は前記ヒレ状突起部32の中心部分の硬性部33よりも軟性に形成されており容易に変形するため、腸壁43に対する当たり方が非常に柔らかく、患者に違和感を与えることがない。 Never has to deform easily is formed in the flexible than the center portion of the rigid portion 33 of the fin-shaped projections 32, which it is very soft contact against the intestinal wall 43, discomfort to the patient. 【0044】ここで、前記ヒレ状突起部32の全てを前記軟性部34のように軟らかく形成すると、前記ヒレ状突起部32の元に戻ろうとする力が弱くなり、前記内視鏡挿入補助具3は、腸壁43に対する前記ヒレ状突起部32の抵抗が弱まり、上述した効果が出にくくなる。 [0044] Here, if all of the fin-shaped projections 32 to soften formed as the flexible portion 34, a force of returning to the original of the fin-like protrusion 32 is weakened, the endoscope insertion aid 3, weakened resistance of the relative intestinal wall 43 fin-like protrusions 32, hardly out above effect. そこで本実施の形態においては、前記軟性部34が変形した後に、ヒレ状突起部32の裏面が腸壁43に当接する状態においては、硬性部33が腸壁43に当接し、前記硬性部33が適度な弾発性を生じることで、腸壁43を保持することができるようにしている。 Therefore, in this embodiment, after the flexible portion 34 is deformed, in the state the back surface of the fin-shaped projections 32 are in contact with the intestinal wall 43, the rigid portion 33 is in contact with the intestinal wall 43, the rigid portion 33 by causing moderate resiliency, so that it is possible to hold the intestinal wall 43. 【0045】(効果)第1の実施の形態によれば、患者に違和感を与えることなく、内視鏡挿入部11の押し操作の時には進みやすく、内視鏡挿入部11の引き操作時に確実に腸壁43を保持でき、前記内視鏡挿入部11の挿入部先端部21が操作者の意図に反して腸管から抜けることなく、腸を直線化することができる。 [0045] According to the of effect: first embodiment without discomfort to the patient, progresses easily at the time of pressing operation of the endoscope insertion portion 11, reliably during pulling operation of the endoscope insertion portion 11 can hold intestinal wall 43, without leaving from the intestine insertion portion distal end portion 21 of the endoscope insertion portion 11 is against the intention of the operator, it is possible to linearize the intestine. これにより、内視鏡挿入部の挿入性を向上することができ、内視鏡を用いた検査や手術の操作性の向上や時間の短縮が可能になる。 Thus, it is possible to improve the insertability of the endoscope insertion portion, it is possible to test and shorten the improvement and time operability surgery using an endoscope. 【0046】なお、本実施の形態の内視鏡2は、内視鏡挿入部11の挿入部先端部21に内蔵した図示しない撮像装置で被検部の内視鏡像を撮像する電子内視鏡を用いているが、取り込んだ内視鏡像を内視鏡像操作部後端部に設けた接眼部で観察する光学式内視鏡であってもよい。 [0046] Incidentally, the endoscope 2 of the present embodiment, an electronic endoscope for capturing an endoscopic image of the subject portion in the image pickup device (not shown) incorporated in the insertion portion distal end portion 21 of the endoscope insertion portion 11 but, it may be an optical endoscope for observing with the eyepiece portion provided on the endoscopic image manipulation section rear portion of the endoscope image captured. 【0047】また、前記ヒレ状突起部32に設ける前記軟性部34は、前記ヒレ状突起部32の周縁を全周に渡って配設してもよく、前記ヒレ状突起部32の前記内視鏡挿入部11の挿入方向に対して後端側のみに配設してもよく、また前記ヒレ状突起部32の外側表面にのみ配設してよい。 Further, the flexible portion 34 provided on the fin-shaped projections 32, the periphery of the fin-like protrusion 32 may be disposed along the entire circumference, the endoscope of the fin-like protrusion 32 it may be disposed only on the rear end side with respect to the insertion direction of the lens insertion portion 11, or may be disposed only on the outer surface of the fin-shaped projections 32. 要は、前記ヒレ状突起部32と腸壁43の当たり方が柔らかくなるように、前記ヒレ状突起部32 In short, as it is soften per the fin-like protrusion 32 and the intestinal wall 43, the fin-like protrusion 32
の周縁部の少なくとも一部に前記軟性部34が配設されていればよい。 The flexible portion 34 in at least part of the peripheral portion has only to be disposed of. 【0048】また、本実施の形態では、前記内視鏡挿入補助具3は、内視鏡挿入部11の挿入方向に対して、前記内視鏡挿入部11の凸部26の直ぐ後ろ側に着脱自在に1個装着されるようになっているが、装着個数は2個以上であっても構わないし、装着位置も複数の個所としてもよく、1個所に1ないし複数を装着しても良いし、 [0048] Further, in the present embodiment, the endoscope insertion aid 3, with respect to the insertion direction of the endoscope insertion portion 11, immediately behind the convex portion 26 of the endoscope insertion portion 11 Although adapted to be detachably mounted one, do not may also be attached number is two or more, may be a plurality of positions also mounting position may be one or more in one position mounted and,
複数の個所にそれぞれ任意の個数を装着する形態としてももちろん構わない。 It may be of course a form of attaching the arbitrary number to the plurality of locations. 【0049】また、本実施の形態においては4個のヒレ状突起部32が前記固定部31から突出しているが、前記ヒレ状突起部32の個数は任意の個数として構わない。 [0049] Further, although in the present embodiment four fin-like protrusions 32 protruding from the fixed portion 31, the number of the fin-like protrusion 32 may as any number. 【0050】また、ヒレ状突起部32は、体腔管内への挿入方向に対して斜め後方に突出するように形成したが、体腔管内への挿入方向に対して真後ろの後方に突出するように形成してもかまわない。 [0050] In addition, fin-like projections 32, formed as has been formed so as to protrude obliquely rearwardly with respect to the insertion direction to a body cavity tube, rearwardly projecting directly behind the insertion direction to a body cavity tube it is also possible to. 【0051】また、内視鏡挿入補助具3は、内視鏡挿入部11に着脱自在に装着される形態でも、図9及び図1 [0051] Also, the endoscope insertion aid 3, in the form which is detachably attached to the endoscope insertion unit 11, 9 and 1
0の変形例に示すように前記内視鏡挿入部11と一体に形成される形態でもよい。 Or in the form as it is formed in the endoscope insertion portion 11 integrally as shown in the modification of 0. 【0052】図9は本発明の第1の実施の形態の第1の変形例を示す内視鏡挿入部の側面図であり、図1乃至図8に示した実施の形態と同じ構成要素には同じ符号を付して説明を省略している。 [0052] Figure 9 is a side view of the endoscope insertion portion showing a first modification of the first embodiment of the present invention, the same components as the embodiment shown in FIGS. 1 to 8 is omitted will be denoted by the same reference numerals. 【0053】図9に示すように、内視鏡挿入補助具5 [0053] As shown in FIG. 9, the endoscope insertion aid 5
は、内視鏡挿入部51の湾曲部52を被覆する湾曲ゴム55と一体に成形している。 It has molded the curved portion 52 of the endoscope insertion portion 51 together with the bending rubber 55 covering. 即ち、第1の変形例においては、記内視鏡挿入補助具5はヒレ状突起部32のみで形成されている。 That is, in the first modification, the serial endoscope insertion aid 5 is formed only in fin-like projections 32. 【0054】このような内視鏡挿入補助具5においても、図1乃至図8に示した第1の実施の形態と同様の効果が得られる。 [0054] In the endoscope insertion aid 5 such, the same effect as the first embodiment shown in FIGS. 1 to 8 are obtained. 【0055】図10は本発明の第1の実施の形態の第2 [0055] Figure 10 is a second first embodiment of the present invention
の変形例を示す内視鏡挿入部の側面図であり、図1乃至図8に示した実施の形態と同じ構成要素には同じ符号を付して説明を省略している。 Variations is a side view of the endoscope insertion portion showing an example, which will not be described with the same reference numerals are given to the same components as the embodiment shown in FIGS. 1-8. 【0056】図10に示すように、内視鏡挿入補助具6 [0056] As shown in FIG. 10, the endoscope insertion aid 6
は、内視鏡挿入部61の湾曲ゴム65と別体に形成した後に、内視鏡挿入部61の挿入部先端部21及び前記湾曲ゴム65にそれぞれ接着剤等を盛り上げて形成された凸部26および凸部62を用いて固定している。 , After forming the bending rubber 65 of the endoscope insertion portion 61 separately, the endoscope insertion portion distal end portion 21 and the respective bending rubber 65 is formed by raised an adhesive convex portion of the insertion portion 61 It is fixed using 26 and the convex portion 62. 【0057】このような内視鏡挿入補助具6においても、図1乃至図8に示した実施の形態と同様の効果が得られる。 [0057] In the endoscope insertion aid 6 as this, the same effect as the embodiment shown in FIGS. 1 to 8 are obtained. 【0058】また、図1乃至図8に示した前記内視鏡挿入補助具3は、挿入部先端部21を覆うカバー(内視鏡先端カバー)24と一体に成形しても構わない。 [0058] Also, the endoscope insertion aid 3 shown in FIGS. 1-8, may be molded integrally with the cover (endoscope distal end cover) 24 that covers the insertion portion distal end portion 21. その場合、前記内視鏡先端カバー24と前記ヒレ状突起部32 In that case, the said endoscope distal end cover 24 fin-like protrusions 32
の材質は同一としてもよいし、ヒレ状突起部の材質を弾性部材として、前記内視鏡先端カバー24の材質に剛性のある樹脂等を用いてもよい。 It is the material may be the same, the material of the fin-shaped protrusions as the elastic member may be a resin or the like with a rigid material of the endoscope distal end cover 24. 【0059】(第2の実施の形態)図11ないし図16 [0059] (Second Embodiment) FIGS. 11 to 16
は本発明の第2の実施の形態に係り、図11は内視鏡挿入補助具の斜視図、図12は内視鏡挿入補助具が内視鏡挿入部に装着された状態で、ヒレ状突起部の長手方向の中心軸に対して垂直な平面で切断した断面図、図13は図11に示すヒレ状突起部の1枚を拡大した第1の説明図、図14は図11に示すヒレ状突起部の1枚を拡大した第2の説明図、図15は前記内視鏡挿入補助具が内視鏡挿入部に装着された状態でヒレ状突起部が内視鏡挿入部に当接するように変形した場合の斜視図、図16は図15に示した状態の内視鏡挿入部および内視鏡挿入補助具を固定部の長手中心軸に垂直なヒレ状突起部を通る平面で切断した場合の断面図である。 Relates to the second embodiment of the present invention, FIG 11 is a perspective view of the endoscope insertion aid, and FIG. 12 is a state where the endoscope insertion aid mounted on the endoscope insertion portion, fin-like sectional view taken along a plane perpendicular to the longitudinal direction of the central axis of the protrusion, FIG. 13 is a first explanatory view enlarging a single fin-like projections 11, 14 are shown in FIG. 11 second explanatory view enlarging a single fin-like protrusions, Figure 15 those fin-shaped protrusions in the endoscope insertion portion in a state where the endoscope insertion aid is attached to the endoscope insertion portion perspective view of the deformed in contact, FIG. 16 is a plane passing through the vertical fin protrusions endoscope insertion portion and endoscopic insertion aid in the state shown in longitudinal central axis of the fixing portion 15 is a sectional view taken. 【0060】(構成)ここで、図1乃至図8に示した第1の実施の形態において、内視鏡挿入補助具3は、ヒレ状突起部32の周縁部分と中心部分の硬さに差をつけるために、前記ヒレ状突起部32の周縁部分に中心部分よりも軟らかい材質の部材を配設してたが、本第2の実施の形態では、前記ヒレ状突起部132の厚さを変化させることにより、中心部分と周縁部分の硬さに差をつけるように構成している。 [0060] (Configuration) Here, in the first embodiment shown in FIGS. 1-8, the endoscope insertion aid 3, difference in the hardness of the peripheral portion and the central portion of the fin-like protrusion 32 to put, it had been arranged a soft material of the member than the center portion to the peripheral portion of the fin-shaped projections 32, in the second embodiment, the thickness of the fin-shaped protrusions 132 by varying, it is configured so as to differentiate the hardness of the central portion and peripheral portion. 【0061】図11および図12に示すように、前記内視鏡挿入補助具103のヒレ状突起部132は、中心の厚肉の硬性部133(中心部)と薄肉の軟性部134 [0061] Figure 11 and as shown in FIG. 12, the endoscope insertion aid fin protrusions 132 of 103, rigid portion 133 (center) of the thick center and thinner flexible portion 134
(周縁部)から構成される。 Composed of (the periphery). これにより、前記内視鏡挿入補助具103は、前記ヒレ状突起部132の周縁部分が中心部分に比べて薄肉になるように形成されている。 Thus, the endoscope insertion aid 103, the peripheral portion of the fin-shaped protrusions 132 are formed to be thinner than the central portion.
このヒレ状突起部132の薄肉の周縁部分は、その硬さが中心部分よりも軟らかくなるように構成されていればよく、その材質は中心部分の硬性部と同等の硬度ないしは軟らかい材質であっても勿論よいし、材質自体の硬度としては硬性部よりも硬い材質であっても、その厚さを薄くすることで中心部分より軟性にしても構わない。 Thin peripheral portion of the fin-shaped protrusion 132 only needs to be configured such that the hardness is softer than the central portion, the material is a rigid portion equivalent to the hardness or soft material of the central portion it is also of course good, as the hardness of the material itself be a material harder than the rigid portion, but may be a flexible than the central portion by thinning the thickness. 【0062】前記ヒレ状突起部132の断面の構成は、 [0062] The configuration of the cross section of the fin-like protrusions 132,
中心部分の肉厚よりも周縁部分の肉厚が薄ければよく、 May be the thickness of the peripheral portion than the thickness of the central portion is thin,
厚肉部と薄肉部の関係は図13に示すように中心部分と周縁部分との間に段差t1−t2を設けて肉厚に差をつけてもよいし、図14に示すように中心部分から漸次肉厚を変化させても構わない。 The thickness relationship of the walled portion and the thin portion may be made different in thickness by providing a level difference t1-t2 between the central portion and the peripheral portion as shown in FIG. 13, the central portion as shown in FIG. 14 it may be gradually changing the wall thickness from. 図14においては、硬性部133と軟性部134の境界は明瞭でないが、前記ヒレ状突起部132の中心部分近傍に比べて周縁部分が軟性になるように構成されていればよい。 In Figure 14, the boundary of the rigid portion 133 and flexible portion 134 is not clear, the central portion near the peripheral portion as compared to the fin-like protrusions 132 may be composed to be flexible. 【0063】前記内視鏡挿入補助具103を内視鏡挿入部11に装着して体腔内へ押し操作にて挿入させる際には、前記内視鏡挿入補助具103のヒレ状突起部132 [0063] When to insert in pressed and attached to the endoscope insertion portion 11 of the endoscope insertion aid 103 into the body cavity, fin-shaped protrusions 132 of the endoscope insertion aid 103
は体腔管壁に当接することで体腔管壁から図12の矢印Fで示される方向の外力を受けることになる。 Is subject to external force in the direction indicated by the arrow F in FIG. 12 from the body cavity tube wall by abutting the cavity wall. 前記ヒレ状突起部132は柔軟な薄肉状の部材で形成されているため、容易に前記内視鏡挿入部11に当接する方向に変形する。 Wherein for fin-like protrusions 132 are formed of flexible thin-walled member is deformed to readily abutting direction the endoscope insertion portion 11. 【0064】次に、図15および図16に示すように、 Next, as shown in FIGS. 15 and 16,
前記ヒレ状突起部132が前記内視鏡挿入部11に当接するように変形した状態について説明する。 It will be described a state where the fin-like protrusion 132 is deformed so as to contact with the endoscope insertion portion 11. 【0065】ここで、前記ヒレ状突起部132の形状は、前記ヒレ状突起部132が前記内視鏡挿入部11に当接するように変形して隣り合うヒレ状突起部と重なった時にも、重なり合った部分の前記ヒレ状突起部132 [0065] Here, the shape of the fin-like protrusions 132, even when the fin-like protrusion 132 is overlapped with the fin-like projections adjacent deformed so as to contact with the endoscope insertion portion 11, the fin-shaped protrusion 132 of the overlapping portions
の肉厚の合計が中心部分の肉厚よりも厚くならないような厚さおよび大きさで形成されている。 Wall total thickness is formed by thick as not greater than the thickness and size of the central portion. 図13では、隣り合う2枚のヒレ状突起部が前記内視鏡挿入部11に当接するように変形した際にも、前記ヒレ状突起部132 In Figure 13, when the two fin-shaped protrusions adjacent deformed so as to contact with the endoscope insertion portion 11 is also the fin-like protrusions 132
が重なり合う部分は厚さt2の周縁部分のみになるように中心部分と周縁部分の大きさが設定されており、また周縁部分の厚さt2は中心部分の厚さt1の半分以下になるように形成されている。 Portions overlap is set the size of the central portion and the peripheral portion so that only the peripheral portion of the thickness t2, and the thickness t2 of the peripheral portion to be less than half the thickness t1 of the central portion It is formed. また、図14に示すように、前記ヒレ状突起部132の肉厚が漸次変化する場合でも、隣り合う2枚の前記ヒレ状突起部132が内視鏡挿入部に当接するように変形した際に、前記ヒレ状突起部132の重なり合う部分の肉厚の合計が、中心部分の最大肉厚t3を超えないように、前記ヒレ状突起部13 Further, as shown in FIG. 14, even when the thickness of the fin-shaped protrusion 132 is changed gradually, when the two of said fin-like projections 132 adjacent is deformed so as to contact the endoscope insertion portion the sum of the thickness of the overlapping portions of the fin-like projections 132, so as not to exceed the maximum thickness t3 of the central portion, the fin-like protrusion 13
2の大きさおよび厚さが設定されている。 Size and thickness of 2 is set. 【0066】(作用)第2の実施の形態においては、前記内視鏡挿入部11に装着された前記内視鏡挿入補助具103が体腔内への挿入時に前記内視鏡挿入部11に当接するように変形した際にも、前記ヒレ状突起部132 [0066] (Operation) In the second embodiment, those in the endoscope insertion portion 11 the endoscope insertion portion 11 the endoscope insertion aid 103 mounted on the upon insertion into the body cavity even when deformed so as to contact said fin-like protrusions 132
の薄肉部が2枚重なった部分の外径d2は、前記ヒレ状突起部132の中央部分における外径d1もしくは前記内視鏡挿入補助具103の固定部31における外径と同等か小さくなり、押し操作において薄肉の周縁部分重なっても挿入性が損なわれることはない。 The outer diameter d2 of the portion thin portion are overlapped two is equal to or smaller and an outer diameter of the fixing portion 31 of the outer diameter d1 or the endoscope insertion aid 103 in the central portion of the fin-like protrusions 132, never insertion is impaired even overlap the peripheral portion of the thin in pressed. 【0067】また第1の実施の形態に対して、前記ヒレ状突起部132に薄肉の周縁部分を設けることで、前記ヒレ状突起部132の面積を増大させることができ、前記内視鏡挿入部11の引き操作時に腸壁と前記ヒレ状突起部132が当接しやすくなる。 [0067] In addition to the first embodiment, the on fin-like projections 132 by providing the peripheral portion of the thin, the it is possible to increase the area of ​​the fin-like protrusions 132, inserting the endoscope wherein the intestinal wall fin protrusions 132 are easily in contact during pulling operation parts 11. 【0068】(効果)このような第2の実施の形態によれば、第1の実施の形態の効果に加え、押し操作時の挿入性を損なうことなく、引き操作時に前記ヒレ状突起部132を腸壁に更に当接しやすくすることで内視鏡挿入部11の挿入部先端部21(図1参照)が不本意に腸管から抜けることを防ぐことができ、体腔管内への前記内視鏡挿入部11の挿入性を向上させる効果を得る。 [0068] (Effect) According to the second embodiment, in addition to the effects of the first embodiment, without impairing the insertion property during press operation, the at pulling operation fin protrusions 132 the can prevent further that the leading end of the insertion portion 21 of the endoscope insertion portion 11 by facilitating contact (see Fig. 1) comes out from unintentionally intestine with the intestinal wall, the endoscope into a body cavity tube obtain the effect of improving the insertability of the insertion portion 11. 【0069】なお、薄肉部の厚さについては各ヒレ状突起部132で均一としてもよいし、それぞれの薄肉部の厚さに差をつけてもよい。 [0069] Note that the thickness of the thin portion may be uniform in each fin-shaped protrusion portion 132 may be made different in the thickness of each thin portion. 要は、ヒレ状突起部132が内視鏡挿入部11に当接するように変形した際に薄肉部の重なった部分の外径が、固定部31もしくは厚肉の硬性部33の外径よりも小さくなるように薄肉部を形成すればよい。 In short, the outer diameter of the overlapped part of the thin portion when deformed as fin-like projection 132 abuts against the endoscope insertion portion 11, than the outer diameter of the fixing portion 31 or the thick of the rigid portion 33 it may be formed thin portion so as to reduce. 【0070】(第3の実施の形態)図17及び図18は本発明の第3の実施の形態に係り、図17は本実施の形態に示す内視鏡挿入補助具の斜視図、図18は内視鏡挿入補助具を固定部の長手中心軸に対して垂直な平面で切断した断面図である。 [0070] (Third Embodiment) FIGS. 17 and 18 relates to a third embodiment of the present invention, FIG 17 is a perspective view of the endoscope insertion aid shown in this embodiment, FIG. 18 is a cross-sectional view taken along a plane perpendicular to the longitudinal central axis of the fixed portion of the endoscope insertion aid. 【0071】図17に示すように、本実施の形態における前記内視鏡挿入補助具203は、前記ヒレ状突起部3 [0071] As shown in FIG. 17, the endoscope insertion aid 203 in the present embodiment, the fin-like protrusions 3
2と前記固定部231が接続される部分235の肉厚が、前記固定部231の他の部分236よりも厚くなるように形成されている。 The thickness of the portion 235 2 and the fixed portion 231 is connected is formed to be thicker than the other portion 236 of the fixed portion 231. 【0072】部分235は、前記固定部231のヒレ状突起部32が接続された部分から固定部231の長手中心軸方向に向かって形成されている。 [0072] portion 235, fin-shaped projections 32 of the fixing portion 231 is formed toward the longitudinal center axis direction of the fixing portion 231 from the connected portion. 【0073】図18に示すように、固定部231の長手中心軸に垂直な断面では、図中の外径d3で示されている4個所の部分235が前記ヒレ状突起部32が接続される部分である。 [0073] As shown in FIG. 18, in the cross section perpendicular to the longitudinal central axis of the fixing portion 231, portion 235 of the four locations indicated by the outside diameter d3 in the figure are connected the fin-like protrusion 32 it is a part. 外径d3の部分は、前記ヒレ状突起部32が接続されない部分236の外径d4よりも大きく形成されている。 Portion of the outer diameter d3 is larger than the outer diameter d4 of the portion 236 where the fin-like projections 32 are not connected. 【0074】(作用)ここで、本実施の形態の説明するために、比較例として図1乃至図8に示した第1の実施の形態の作用について図19乃至図21を用いて説明する。 [0074] (Operation) Here, in order to explain the present embodiment will be described with reference to FIGS. 19 to 21 for the operation of the first embodiment shown in FIGS. 1-8 as comparative examples. 【0075】図19乃至図21は第1の実施の形態の内視鏡挿入部に装着された内視鏡挿入補助具が腸壁等の管腔から外力を受けたときの変形の様子を示す説明図である。 [0075] FIGS. 19 to 21 show a state of deformation when the endoscope insertion aid mounted on the endoscope insertion portion of the first embodiment is subjected to an external force from the lumen, such as the intestinal wall it is an explanatory diagram. 【0076】図19に示すように、内視鏡挿入補助具3 [0076] As shown in FIG. 19, the endoscope insertion aid 3
を装着した内視鏡挿入部11を体腔管内で図中矢印C方向に引き操作するときには、前記内視鏡挿入補助具3のヒレ状突起部32は腸壁43等に当接することにより図中矢印Gで示す方向の外力を受けることになる。 When pulled in the drawing direction of the arrow C in the body cavity tract of the endoscope insertion portion 11 fitted with the fin-shaped projections 32 of the endoscope insertion aid 3 in the drawing by coming into contact with the intestinal wall 43, etc. It will receive an external force in the direction indicated by the arrow G. 【0077】前述したように、前記ヒレ状突起部32は薄肉で柔軟な弾性部材で形成されており、前記内視鏡挿入部11の引き操作に伴って、腸壁43を押さえながら変形することで、図20に示すように前記内視鏡挿入補助具3よりも後ろ側(矢印C側)の腸壁43が畳まれ、 [0077] As described above, said fin-like projections 32 are formed of a flexible elastic member in thin, that with the pulling operation of the endoscope insertion portion 11, deforms while pressing the intestinal wall 43 in, intestinal wall 43 of the rear (arrow C side) is folded than the endoscope insertion aid 3, as shown in FIG. 20,
腸管が短縮される。 Intestinal tract is shortened. 【0078】しかしながら外力Gが過度に大きい場合や、前記ヒレ状突起部32の根元部近傍(固定部31との接続部近傍)に外力Gが加わる場合等には、変形する領域が前記ヒレ状突起部32を超えて、前記固定部31 [0078] However, when external force or G is too large, the the fin-like projection portion 32 root portion near the case an external force G in (connecting the vicinity of the fixing portion 31) is applied or the like is deformed region is the fin beyond protrusion 32, the fixing unit 31
から捲れ返ってしまい、図21に示すようなヒレ状突起部32が挿入部先端部21側に向けて畳まれたままの状態となる場合があった。 Will be rolled up back from, there are cases where fin projections 32 as shown in FIG. 21 in the state as it was folded toward the insertion portion distal end 21 side. 図21に示す状態では、前記内視鏡挿入補助具3は引き操作時に腸壁を押さえる効果がなく、さらに、押し操作による挿入においても、挿入部径が大きくなることによって挿入性が悪化する虞があった。 In the state shown in FIG. 21, the endoscope insertion aid 3 has no effect to suppress the intestinal wall during pulling operation, additionally, also in the insertion by pressing operation, the insertion resistance by the insertion portion diameter increases to deteriorate fear was there. 【0079】これに対して、図17及び図18に示す第3の実施の形態では、前記内視鏡挿入補助具203を装着した前記内視鏡挿入部11を体腔管内で引き操作した際に、前記ヒレ状突起部32に図19に示すような外力Gが加えられても、前記内視鏡挿入補助具203は、前記ヒレ状突起部32と前記固定部231の接続部分が厚肉化されており、前記固定部231は変形しにくい構成となっているため、前記固定部231が捲れ返ってしまうようなことがない。 [0079] In contrast, in the third embodiment shown in FIGS. 17 and 18, the endoscope insertion portion 11 fitted with the endoscope insertion aid 203 upon pulled in the body cavity tract , even if an external force G as shown in FIG. 19 is applied to the fin-shaped projections 32, the endoscope insertion aid 203, the connecting portion is thickening of the fin-like projections 32 and the fixing portion 231 being, the order fixing unit 231 has a configuration not easily deformed, the fixed portion 231 never that would return turned up. 【0080】また、図17及び図18に示す第3の実施の形態では、厚肉化されているのは前記ヒレ状突起部1 [0080] In the third embodiment shown in FIGS. 17 and 18, what is thickened in the fin-like projections 1
32と前記固定部31の接続部分近傍のみであるため、 32 because the only connection portion near the fixing portion 31,
体腔内に挿入される部分の外径の増加は最小限に抑えられており、外径増大により挿入性が著しく悪化することはない。 Increase in the outer diameter of the portion to be inserted into a body cavity is minimized, never insert is remarkably deteriorated by the outer diameter increment size. 【0081】また、前記内視鏡挿入補助具203は、前記固定部231の内径を前記内視鏡挿入部11の外径よりも小さくしており、前記内視鏡挿入部11への装着時には前記固定部231の弾性を利用して前記固定部23 [0081] Also, the endoscope insertion aid 203, the inner diameter of the fixing portion 231 is smaller than the outer diameter of the endoscope insertion portion 11, when mounted to the endoscope insertion portion 11 wherein by utilizing the elasticity of the fixing portion 231 fixing portion 23
1の開口径を広げることで前記内視鏡挿入部11に装着し固定している。 It is fixed mounted in the endoscope insertion portion 11 by extending the first opening diameter. したがって、一般に前記固定部231 Therefore, generally the fixed part 231
の肉厚が厚くなると、前記固定部231は弾性変形しにくくなるため、厚肉化しない場合に比べ着脱性が落ちる傾向にある。 When the thickness of the increases, the fixing unit 231 to become difficult to elastically deform, there is a tendency that removability falls compared with the case of no thickening. しかしながら本実施の形態においては、厚肉化するのは前記ヒレ状突起部132と前記固定部23 In the present embodiment, however, for thickening the said fin-like projections 132 and the fixed portion 23
1の接続部分近傍のみであり、それ以外の部分の肉厚は薄肉のままであり、容易に弾性変形させることができるため着脱性の劣化は最小限に抑えられている。 Is only one connection portion near the wall thickness of the other portion remains thin, easily elastically deformed so that the removability of degradation since it is is minimized. 【0082】また、前記固定部231の前記ヒレ状突起部32が接続される部分近傍は、前記ヒレ状突起部32 [0082] The said portion near the fin-like protrusion 32 is connected to the fixed part 231, the fin-like protrusion 32
を把持して引っ張ることができ、前記固定部231の他の部分よりも大きな力が加えられるため変形させやすい。 It can be pulled and grips the easily deformed since a large force is exerted than another part of the fixing portion 231. これらより第3の実施の形態においては、前記固定部231の厚肉化を行わない場合と比べても着脱性はほとんど劣化しない。 In the third embodiment from those, without any thickening and compared even removability of the fixed portion 231 hardly deteriorated. 【0083】また、第3の実施の形態においては、前記ヒレ状突起部32と前記固定部231の接続部の外径側に肉盛りを行っているので、固定部の内径側には寸法変化がないため、前記固定部231の内側に段差を生じない。 [0083] Further, in the third embodiment, since the performing padding on the outer diameter side of the connection portion of the fin-like projections 32 and the fixing unit 231, the dimensional change in the inner diameter side of the fixed part because there is no, no a step on the inner side of the fixed portion 231. 【0084】(効果)第3の実施の形態に示す前記内視鏡挿入補助具3は、前記内視鏡挿入部11に装着して引き操作を行った際にも、前記内視鏡挿入補助具3の固定部231が捲れ返ってしまうことがないため、前記ヒレ状突起部32が腸壁を押さえる効果が失われない。 [0084] (Effect) The endoscope insertion aid 3 shown in the third embodiment, even when performing the pulling operation was mounted in the endoscope insertion portion 11, the endoscope insertion aid since no fixed portion 231 of the sushi 3 will returned curled, the fin-like protrusion 32 is is not lost the effect to suppress the intestinal wall. また厚肉化を行っている部位は前記固定部231の前記ヒレ状突起部32が接続される部分近傍のみであるため、挿入性および着脱性をほとんど劣化しない。 Since sites is performed thickening is only the portion near the fin-like protrusion 32 is connected to the fixed portion 231 hardly deteriorate the insertion resistance and removability. 【0085】また、第3の実施の形態において、前記ヒレ状突起部32と前記固定部231の接続部近傍の外径側に肉盛りを行っているので、着脱時に前記固定部23 [0085] Further, in the third embodiment, since the performing padding on the outer diameter side of the connecting portion near the fin-like projections 32 and the fixing portion 231, the during detachable fixing portion 23
1の内径側の段差が前記内視鏡挿入部11に引っ掛かることがない。 Never step 1 on the inner diameter side is caught by the the endoscope insertion portion 11. 【0086】なお、第3の実施の形態においては厚肉化する部分を、前記固定部231の前記ヒレ状突起部32 [0086] Incidentally, a part of thickening in the third embodiment, the fin-like protrusions 32 of the fixing portion 231
が接続される部分を含むその近傍としているが、前記ヒレ状突起部32が接続される部分は薄肉として、ヒレ状突起部が接続される部分の間の肉厚を厚肉化させても構わない。 Although There has been a near containing portion connected, portion where the fin-like protrusion 32 is connected to a thin-walled, may be a thickness between a portion of fin-like projections are connected to thickened Absent. 要は、ヒレ状突起部が捲れる方向の外力を受けたときに、固定部全体が捲れ返らないように、前記外力に抗する厚肉部分があればよく、前記固定部231の前記ヒレ状突起部32が接続される部分の長手中心軸方向上の近傍において、その前記固定部231の円周上の少なくとも一部が厚肉化されていればよい。 In short, when the fin-like protrusions is subjected to the direction of the external force Makureru, so that the entire fixing unit is not returned rolled up, it may be any thick part to resist the external force, the fin-like the fixed portion 231 in the vicinity of the longitudinal center axis of the portion protrusion 32 is connected, at least a portion of the circumference of the said fixing portion 231 has only to be thickened. 【0087】また、第3の実施の形態においては、前記固定部231の体腔内への挿入方向に対して後端側に前記ヒレ状突起部32が接続される形態を示しているが、 [0087] Further, in the third embodiment, wherein at the fin-like projections 32 on the rear end side with respect to the insertion direction into the body cavity of the fixed portion 231 indicates a form to be connected,
前記固定部231の前端や、中間部に前記ヒレ状突起部32が接続される形態でも構わない。 Wherein and the front end of the fixing portion 231, it may be in a form wherein the intermediate portion fin protrusions 32 are connected. 【0088】図22及び図23は本発明の第3の実施の形態の第1の変形例に係り、図22は内視鏡挿入補助具の斜視図、図23は図22の前記内視鏡挿入補助具を前記内視鏡挿入部に装着した状態で、固定部の長手中心軸で切断した場合の断面図である。 [0088] FIGS. 22 and 23 relates to a first modification of the third embodiment of the present invention, FIG 22 is a perspective view of the endoscope insertion aid, FIG. 23 is the endoscope of FIG. 22 in a state in which the insertion aid is attached to the endoscope insertion portion, a sectional view taken along the longitudinal central axis of the fixed part. 【0089】ここで、図17および図18で示した前記内視鏡挿入補助具3が前記固定部31の円周方向上で前記ヒレ状突起部32が接続される部分を厚肉化させているのに対し、図22及び図23に示す第1の変形例では、内視鏡挿入補助具205の固定部251の長手中心軸方向で前記ヒレ状突起部32が接続される側の部分2 [0089] Here, by thickened the part fin protrusions 32 are connected on the circumferential direction of the endoscope insertion aid 3 the fixing unit 31 shown in FIGS. 17 and 18 while there, 22 and in the first modification shown in FIG. 23, the portion of the side of the fin-like protrusion 32 in the longitudinal direction of the central axis of the fixing portion 251 of the endoscope insertion aid 205 is connected 2
55を、外側に向けて肉盛りを行うことで他の部分25 55, other portions 25 by performing padding outward
6に比べて厚肉化させている。 It is made to thickening compared to 6. 【0090】本変形例において、前記固定部251を厚肉化する部分については、前記固定部251と前記ヒレ状突起部32が接続される部分のみに限らず、図20に示す外力Gを受けても前記固定部251が捲れないようになっていればよく、前記固定部251の前記ヒレ状突起部32が接続される部分近傍の任意の個所を厚肉化するように構成しても構わない。 [0090] In this modification, the portion to be thickened to the fixing unit 251 is not limited only to the portion where the fixing portion 251 and the fin-like protrusion 32 is connected to receive an external force G shown in FIG. 20 it is sufficient so that the fixing unit 251 is not turned up even, may be configured to thickening any point of the portion near the fin-like protrusion 32 is connected to the fixed portion 251 Absent. 【0091】図24は本発明の第3の実施の形態の第2 [0091] Figure 24 is a second a third embodiment of the present invention
の変形例に係る内視鏡挿入補助具の断面図である。 It is a cross-sectional view of the endoscope insertion aid according to a modification of. 【0092】図17及び図18に示す第3の実施の形態では、ヒレ状突起部32と前記固定部231が接続される部分235を外側に向けて肉厚に形成したが、図24 [0092] In the third embodiment shown in FIGS. 17 and 18, but a portion 235 of fin-shaped projections 32 and the fixing portion 231 is connected to form a thick toward the outside, FIG. 24
に示す本発明の第3の実施の形態の第2の変形例では、 In a second variant of the third embodiment of the present invention shown in,
前記図17に示したヒレ状突起部32と固定部271が接続される部分275を他の部分276に比べて内径側に肉盛りを行って肉厚にして形成している。 Are formed in the wall thickness by performing a padding on the inner diameter side as compared with the fin-shaped projections 32 and the fixing portion 271 is the other part 276 of the portion 275 to be connected as shown in FIG 17. 固定部27 The fixed portion 27
1の部分275の内径は、他の部分276の内径に比べて小さくなっている。 The inner diameter of the first portion 275 is smaller than the inner diameter of the other portions 276. 部分275は前記固定部271のヒレ状突起部32が接続された部分から固定部271の長手中心軸方向に向かって形成されている。 Portion 275 is formed toward the longitudinal center axis direction of the fixing portion 271 from the fin-shaped projections 32 are connected portion of the fixing portion 271. 【0093】前記ヒレ状突起部32と前記固定部271 [0093] The said fin-like protrusions 32 fixing unit 271
の接続部近傍の内径側に肉盛りを行った場合には、前記内視鏡挿入部11に前記内視鏡挿入補助具207を装着した際に外表面に生じる段差を滑らかに抑えることができるため、腸壁等に前記内視鏡挿入補助具207が当接した場合の当たり方を柔らかくできる。 If the performed buildup on the inner diameter side of the connecting portion vicinity can smoothly suppressed that the step formed on the outer surface upon mounting the endoscope insertion aid 207 in the endoscope insertion portion 11 Therefore, it softens way per case of the endoscope insertion aid 207 to the intestine wall or the like is in contact. また、前記ヒレ状突起部32を把持して引っ張ることにより前記固定部271の開口部を大きく変形させることができるため、 Moreover, since it is possible to substantially deform the opening of the fixed portion 271 by gripping and pulling the fin-like projections 32,
前記固定部271の他の部分に比べて締め率をきつくしても着脱性が損なわれない。 Is not impaired removability even when tightly fastening rate than the other portions of the fixed portion 271. これにより、前記内視鏡挿入部11との固定力量を上げることができ、より脱落しにくくなるという効果が得られる。 Thus, the endoscope insertion portion can be increased fixing force amount of 11, the effect is obtained that it becomes more difficult to fall off. 【0094】図25は本発明の第3の実施の形態の第3 [0094] Figure 25 is the third of the third embodiment of the present invention
の変形例に係る内視鏡挿入補助具の断面図である。 It is a cross-sectional view of the endoscope insertion aid according to a modification of. 【0095】図22及び図23に示す変形例では、内視鏡挿入補助具205の固定部251の長手中心軸方向で前記ヒレ状突起部32が接続される側の部分255を、 [0095] In the modification shown in FIGS. 22 and 23, the endoscope insertion aid 205 side portion 255 of said the longitudinal central axis fin protrusions 32 are connected to the fixed portion 251 of,
外側に向けて肉盛りを行うことで厚肉化させているが、 Although is thickened by performing padding outward,
図24に示す本発明の第3の実施の形態の第2の変形例では、内視鏡挿入補助具209の固定部295の長手中心軸方向で前記ヒレ状突起部32が接続される側の部分295を、内側に向けて肉盛りを行うことで他の部分2 Figure 24 shows the present invention in the second modification of the third embodiment, the side where the fin-like protrusion 32 in the longitudinal direction of the central axis of the fixing portion 295 of the endoscope insertion aid 209 is connected the part 295, the other part 2 by performing the build-up toward the inside
56に比べて厚肉化させている。 It is made to thickening compared to the 56. 【0096】このような第3の変形例においても、前記内視鏡挿入部11に前記内視鏡挿入補助具209を装着した際に外表面に生じる段差を滑らかに抑えることができる。 [0096] Also in this third modified example, it is smoothly suppressed that the step formed on the outer surface upon mounting the endoscope insertion aid 209 in the endoscope insertion portion 11. 【0097】(第4の実施の形態)図26乃至図29は本発明の第4の実施の形態に係り、図26は内視鏡挿入補助具を固定部の長手中心軸で切断した半断面図、図2 [0097] (Fourth Embodiment) FIGS. 26 to 29 relates to a fourth embodiment of the present invention, Figure 26 is a half cross-section obtained by cutting the endoscope insertion aid in the longitudinal central axis of the fixed part figures, FIG. 2
7は内視鏡挿入補助具を内視鏡挿入部に取り付ける場合の第1の操作を示す説明図、図28は内視鏡挿入補助具を内視鏡挿入部に取り付ける場合の第2の操作を示す説明図、図29は内視鏡挿入補助具を内視鏡挿入部に装着した状態を示す。 7 the first explanatory diagram showing the operation for installing the endoscope insertion aid in the endoscope insertion section, FIG. 28 is a second operation for installing the endoscope insertion aid in the endoscope insertion portion the illustration shown, FIG. 29 shows a state of mounting the endoscope insertion aid in the endoscope insertion portion. 【0098】説明図である。 [0098] is an explanatory diagram. 【0099】図26に示すように、内視鏡挿入補助具3 [0099] As shown in FIG. 26, the endoscope insertion aid 3
03は、固定部331と4個のヒレ状突起部32とで構成されている。 03, and a fixing portion 331 and four fin-like projections 32. 【0100】固定部331は、円筒状に形成され、前記内視鏡挿入部11に装着される。 [0100] fixing portion 331 is formed in a cylindrical shape, is mounted in the endoscope insertion portion 11. 4個のヒレ状突起部3 Four fin-like protrusions 3
2は、柔軟で平たい薄肉形状となっており、体腔管内への挿入方向に対して斜め後方の所定の角度で前記固定部331の外表面から突出している。 2, has a flexible, flat thin shape, and protrudes from the outer surface of the fixing portion 331 at a predetermined angle obliquely rearward with respect to the insertion direction to a body cavity tract. ヒレ状突起部32の固定部331の外表面から突出する位置は、固定部23 Position projecting from the outer surface of the fixing portion 331 of the fin-shaped projections 32, fixed portion 23
1の長手中心軸方向の中間部になっている。 It has an intermediate portion of one of the longitudinal central axis. 【0101】前記固定部331の前記ヒレ状突起部32 [0102] The fin-shaped projections 32 of the fixing portion 331
が接続される部分335の内径D1は、前記内視鏡挿入部11の外径D3よりも小さく形成されている。 There the inner diameter D1 of the portion 335 to be connected is smaller than the outer diameter D3 of the endoscope insertion portion 11. 前記固定部331のヒレ状突起部32が接続される部分以外の部分336の内径D2は外径D3よりも大きく形成されている。 The inner diameter D2 of the fin-shaped projections 32 are portions 336 other than the portion connected to the fixing portion 331 is formed larger than the outer diameter D3. 【0102】(作用)図26において、前記内視鏡挿入補助具303の固定部331の内径は、前記ヒレ状突起部32が接続される部分以外は前記内視鏡挿入部11の外径よりも大きく形成されているので、図27に示すように前記内視鏡挿入部11への装着に際しても内径D2 [0102] (Operation) In FIG. 26, the inner diameter of the fixing portion 331 of the endoscope insertion aid 303, except the portion where the fin-like protrusion 32 is connected than the outer diameter of the endoscope insertion portion 11 because it is also larger, inner diameter also when mounted to the endoscope insertion portion 11 as shown in FIG. 27 D2
の部分336がガイドとなり前記内視鏡挿入部11の挿入部先端部21が前記ヒレ状突起部32の接続部近傍に至るまではスムーズに装着することができる。 Until the insertion portion distal end portion 21 of the endoscope insertion portion 11 portion 336 is a guide reaches the connecting portion near the fin-like projections 32 may be mounted smoothly. 【0103】また、前記ヒレ状突起部32の接続部近辺において、前記固定部331の内径が前記内視鏡挿入部11の挿入部先端部21の外径よりも小さいために干渉するような場合でも、前記ヒレ状突起部32を手300 [0103] Further, in the vicinity connecting portion of the fin-shaped projections 32, the case inside diameter of the fixing portion 331 so as to interfere with the order smaller than the outer diameter of the insertion portion distal end portion 21 of the endoscope insertion portion 11 But hand the fin protrusions 32 300
で把持することで図28に示すように容易に前記内視鏡挿入補助具303を変形させることができ、図29に示すように内視鏡挿入補助具303は前記内視鏡挿入部1 In by gripping can deform the endoscope insertion aid 303 easily as shown in FIG. 28, the endoscope insertion aid 303 as shown in FIG. 29 is the endoscope insertion portion 1
1への装着が可能となる。 Attachment to 1 can be. 【0104】ここで、第4の実施の形態の比較として、 [0104] Here, as a comparison of the fourth embodiment,
内視鏡挿入補助具の固定部の内径を均一に形成したものについて図30乃至図32を用いて説明する。 The inner diameter of the fixed portion of the endoscope insertion aid those formed uniformly be described with reference to FIGS. 30 to 32. 【0105】図30乃至図32は第4の実施の形態の比較例として内視鏡挿入補助具の固定部の内径を均一に形成したものを示し、図30は内視鏡挿入補助具と内視鏡挿入部のサイズを示す説明図、図31は内視鏡挿入補助具を内視鏡挿入部に取り付ける作業の第1の例を説明する説明図、図32は内視鏡挿入補助具を内視鏡挿入部に取り付ける作業の第2の例を説明する説明図である。 [0105] FIGS. 30 to 32 show what was the inner diameter of the fixed portion of the endoscope insertion aid is uniformly formed as a comparative example of the fourth embodiment, FIG. 30 is an inner and an endoscope insertion aid explanatory view showing the size of the endoscope insertion portion, FIG. 31 is an explanatory diagram for explaining a first example of the work of attaching the endoscope insertion aid in the endoscope insertion portion, Figure 32 is an endoscope insertion aid a second example of a work for attaching the endoscope insertion portion is an explanatory diagram for explaining the. 【0106】図30に示すように、前記内視鏡挿入補助具307の固定部371の後端でない部分には前記ヒレ状突起部32が接続されており、前記固定部371の内径D1は長手中心軸方向の全長に渡り、前記内視鏡挿入部11の外径D3よりも小さくなっている。 [0106] As shown in FIG. 30, the non rear end portion of the fixed portion 371 of the endoscope insertion aid 307 is connected to the fin-like protrusions 32, the inner diameter D1 of the fixing portion 371 in the longitudinal over the entire length in the central axis direction is smaller than the outer diameter D3 of the endoscope insertion portion 11. 【0107】このような構造では、前記内視鏡挿入補助具307の固定部371の開口部372を前記内視鏡挿入部11の挿入部先端部21に被せるためには、図31 [0107] In this structure, in order to put the opening 372 of the fixing portion 371 of the endoscope insertion aid 307 to the leading end of the insertion portion 21 of the endoscope insertion portion 11, FIG. 31
に示すように前記固定部371の端部の開口部372を指300で広げるようにして装着しなければならないが、一般に大腸用内視鏡の挿入部外形D3は10ないし15mm程度であり、前記内視鏡挿入補助具307の固定部371の開口部径が小さいために作業性が非常に悪くなってしまう。 While the not opening 372 of the end of the fixed portion 371 must be mounted so as to widen a finger 300 as shown in commonly insertion portion outer D3 colon endoscope is from 10 about 15 mm, the workability for opening diameter smaller fixed portion 371 of the endoscope insertion aid 307 becomes very poor. また、図28で示した実施の形態のように前記ヒレ状突起部32を指300で把持して開口部372を広げようとしても、図32に示すように前記ヒレ状突起部32の接続部の内径が広がっても開口部37 Further, even Grow the opening 372 by gripping with the fingers 300 of the fin-shaped projections 32 as in the embodiment shown in FIG. 28, the connecting portion of the fin-shaped projections 32 as shown in FIG. 32 even opening widened inner diameter 37
2はほとんど広がらないため、そのまま装着することは困難である。 For 2 is hardly spread, it is difficult to directly attached. 【0108】(効果)以上説明したように、第4の実施の形態の前記内視鏡挿入補助具303は、内視鏡挿入補助具の固定部の内径を均一に形成したものに比べて、前記内視鏡挿入部11への装着性を向上させることができる。 [0108] As (effect) explained above, the endoscope insertion aid 303 of the fourth embodiment, as compared to that of the inner diameter of the fixed portion of the endoscope insertion aid formed uniformly, it is possible to improve the mounting property to the endoscope insertion portion 11. 【0109】図33は本発明の第4の実施の形態の第1 [0109] Figure 33 is the first of the fourth embodiment of the present invention
の変形例に係る内視鏡挿入補助具の半断面図である。 It is a half-sectional view of the endoscope insertion aid according to a modification of. 【0110】図33において、前記内視鏡挿入補助具3 [0110] In FIG 33, the endoscope insertion aid 3
04の固定部341の前記ヒレ状突起部32が接続される部分から前側(前記内視鏡挿入部11の体腔管内への挿入方向に対して前側)の部分345の内径D1が、前記内視鏡挿入部11の外径D3よりも小さく形成されている。 04 of the front from the portion fin protrusions 32 are connected to the fixed portion 341 inner diameter D1 of the portion 345 of the (front to the insertion direction to a body cavity tube of the endoscope insertion portion 11), the endoscope It is formed smaller than the outer diameter D3 of the lens insertion portion 11. 前記ヒレ状突起部32の接続部より後ろ側の部分346の内径D2は前記内視鏡挿入部11の外径D3よりも大きく形成されている。 The inner diameter D2 of the rear portion 346 than the connecting portion of the fin-like protrusion 32 is formed larger than the outer diameter D3 of the endoscope insertion portion 11. 【0111】このような第1の変形例では、前記固定部341の前記ヒレ状突起部32が接続される部分よりも前側の内径D1が、前記内視鏡挿入部11の外径D3よりも小さくなっているが、前記内視鏡挿入補助具304 [0111] In this first modification, the front side of the inner diameter D1 than the portion fin protrusions 32 are connected to the fixed portion 341, than the outer diameter D3 of the endoscope insertion portion 11 It is smaller, but the endoscope insertion aid 304
の装着に際しては前記ヒレ状突起部32を把持して前記内視鏡挿入部11の軸に沿って引っ張ってずらすことができるため、前記ヒレ状突起部32の接続部から前側の部分345については、前記内視鏡挿入部11の外径D It is possible for the time mounting is displaced to pull along the axis of the endoscope insertion portion 11 to grip the fin-like projections 32, the front portion 345 from the connecting portion of the fin-like protrusion 32 , the outer diameter D of the endoscope insertion portion 11
3より小さい内径D1であっても装着性が著しく劣化することはない。 3 never wearability is significantly degraded even smaller inside diameter D1. 【0112】図34は本発明の第4の実施の形態の第2 [0112] Figure 34 is a second fourth embodiment of the present invention
の変形例に係る内視鏡挿入補助具の半断面図である。 It is a half-sectional view of the endoscope insertion aid according to a modification of. 【0113】図34において、前記内視鏡挿入補助具3 [0113] In FIG 34, the endoscope insertion aid 3
05の固定部351の後端には前記ヒレ状突起部32が接続されており、前記固定部351の接続部近傍の部分355の内径D1が、前記内視鏡挿入部11の外径D3 The 05 of the rear end of the fixing portion 351 is connected to the fin-like protrusions 32, the inner diameter D1 of the connecting portion near the portion 355 of the fixing portion 351, the outer diameter D3 of the endoscope insertion portion 11
よりも小さく形成されている。 It is formed smaller than. 【0114】前記固定部351の他の部分356の内径D2は、前記内視鏡挿入部11の外径D3よりも大きく形成されている。 [0114] the inner diameter D2 of the other part 356 of the fixing portion 351 is formed larger than the outer diameter D3 of the endoscope insertion portion 11. 【0115】即ち、内視鏡挿入補助具305は、図26 [0115] That is, the endoscope insertion aid 305, FIG. 26
に示した形状から、固定部331の前記ヒレ状突起部3 From the shape shown in, the fin-like projections 3 of the fixed portion 331
2の接続部から後ろのガイドとなる内径D2の部分33 Consisting of two connecting portions and the back of the guide portion of the inner diameter D2 33
6を取り除いた形状になっている。 It has a shape obtained by removing the 6. 【0116】この変形例においても、前記内視鏡挿入補助具305は、前記ヒレ状突起部32を把持して前記固定部351を変形させることで、容易に前記内視鏡挿入部11へ装着することができる。 [0116] Also in this modification, the endoscope insertion aid 305, by deforming the fixing portion 351 by gripping the fin-like projections 32, easily attached to the endoscope insertion portion 11 can do. 更にガイドとなる部分がないために、装着後に前記内視鏡挿入補助具305と前記内視鏡挿入部11の間にできる段差や隙間を小さくできる。 Further since there is no portion that becomes a guide, it is possible to reduce the step or gap formed between the endoscope insertion aid 305 and the endoscope insertion portion 11 after mounting. 【0117】図35は本発明の第4の実施の形態の第3 [0117] Figure 35 is the third of the fourth embodiment of the present invention
の変形例に係る内視鏡挿入補助具の半断面図である。 It is a half-sectional view of the endoscope insertion aid according to a modification of. 【0118】図35において、前記内視鏡挿入補助具3 [0118] In FIG 35, the endoscope insertion aid 3
06の固定部361の後端でない部分には、前記ヒレ状突起部32が接続されており、前記固定部361の内径D1は長手中心軸方向の全長に渡り、前記内視鏡挿入部11の外径D3よりも小さくなっている。 The non rear portion of the fixed portion 361 of 06, the and fin-shaped projections 32 are connected, the inner diameter D1 of the fixing portion 361 over the entire length of the longitudinal central axis direction, of the endoscope insertion portion 11 It is smaller than the outer diameter D3. 【0119】即ち、内視鏡挿入補助具306は、図33 [0119] That is, the endoscope insertion aid 306, FIG. 33
に示した形状から、前記固定部341の前記ヒレ状突起部32の接続部から後ろのガイドとなる内径D2の部分346を取り除いた形状になっている。 From the shape shown, it has a shape obtained by removing the portion 346 of the inner diameter D2 of the back of the guide from the connection portion of the fin-shaped projections 32 of the fixing portion 341. 【0120】この第3の変形例においても、前記内視鏡挿入補助具306は、前記ヒレ状突起部32を指で把持して前記固定部361を変形させることで、容易に前記内視鏡挿入部11へ装着することができる。 [0120] Also in the third modification, the endoscope insertion aid 306, the fin-like projections 32 by deforming the fixing portion 361 by gripping with fingers easily the endoscope it can be attached to the insertion portion 11. 更にガイドとなる部分がないために、装着後に前記内視鏡挿入補助具306と前記内視鏡挿入部11の間にできる段差や隙間が小さくできる。 Since there is no portion that further serves as a guide, a step or gap formed between the endoscope insertion aid 306 and the endoscope insertion unit 11 after the mounting can be reduced. 【0121】[付記]以上詳述したような本発明の上記実施の形態によれば、以下の如き構成を得ることができる。 [0121] According to the embodiment of the present invention as [Appendix] above in detail, it is possible to obtain the following-described configuration. 【0122】(付記項1) 内視鏡挿入部に一体または着脱自在に固定される固定部と、体腔内への挿入方向に対して斜め後方または後方に向かって突出した状態で前記固定部に少なくとも1つ接続される柔軟な薄肉状のヒレ状突起部と、を具備し、前記固定部を前記内視鏡挿入部に固定した状態でこの内視鏡挿入部を体腔管内で引き操作するとき、前記ヒレ状突起部が体腔管壁に当接することで、体腔管内での前記内視鏡挿入部の位置を保持する内視鏡挿入補助具であって、前記ヒレ状突起部の周縁部分の少なくとも一部を、前記ヒレ状突起部が前記固定部に接続される部分の一部よりも軟性にしたことを特徴とする内視鏡挿入補助具。 [0122] on the fixed part in a state in which a fixed portion fixed to be freely integrally or removably to (Note 1) endoscope insertion portion, protruding toward the obliquely rearward or backward with respect to the insertion direction into the body cavity at least one connected thereto a flexible thin-walled fin protrusions, provided with, when the fixing unit is pulled the endoscope insertion portion in a state of being fixed to the endoscope insertion portion in the body cavity tract the fin-like protrusions that abut against the body cavity tube wall, an endoscopic insertion aid for holding the position of the endoscope insertion portion in the body cavity tract, the peripheral portion of the fin-like projections at least a portion, the endoscope insertion aid the fin-like projection is characterized in that the flexible than some of the portion connected to the fixed part. 【0123】(付記項2) 前記ヒレ状突起部の周縁部分の少なくとも一部に、前記ヒレ状突起部が前記固定部に接続される部分の一部よりも軟性の部材を配設したことを特徴とする付記項1に記載の内視鏡挿入補助具。 [0123] at least a portion of the periphery of the (Note 2) said fin protrusions, said fin-like protrusions were provided with members flexible than some of the portion connected to the fixed part the endoscope insertion aid according to item 1, wherein. 【0124】(付記項3) 前記ヒレ状突起部の周縁部分の少なくとも一部の肉厚を、前記ヒレ状突起部が前記固定部に接続される部分の一部よりも薄くしたことを特徴とする付記項1に記載の内視鏡挿入補助具。 [0124] and characterized in that at least part of the thickness of the peripheral portion of the (Note 3) said fin protrusions, and thinner than a portion of the portion where the fin-like projections are connected to the fixed part the endoscope insertion aid according to item 1. 【0125】(付記項4) 複数の前記ヒレ状突起部を有し、前記ヒレ状突起部が前記内視鏡挿入部に当接する方向に変形した際に、前記ヒレ状突起部の薄肉の周縁部分が、隣接するヒレ状突起部の厚肉の中心部分に重ならないようにしたことを特徴とする付記項3に記載の内視鏡挿入補助具。 [0125] (Note 4) has a plurality of said fin-like protrusions, when the fin-like protrusion is deformed in contact with the direction in the endoscope insertion portion, the peripheral edge of the thin of the fin-like projections part, the endoscope insertion aid according to item 3, characterized in that so as not to overlap the central portion of the thick of the fin-shaped adjacent protrusions. 【0126】(付記項5) 複数の前記ヒレ状突起部を有し、前記ヒレ状突起部が前記内視鏡挿入部に当接する方向に変形した際に、隣接するヒレ状突起部と重なりあった部分の厚さが、前記ヒレ状突起部の厚肉の中心部分の肉厚よりも薄いことを特徴とする付記項3または4に記載の内視鏡挿入補助具。 [0126] (Note 5) has a plurality of said fin-like protrusions, when the fin-like protrusion is deformed in contact with the direction in the endoscope insertion portion, there overlap the fins adjacent protrusions thickness portions, the endoscope insertion aid according to item 3 or 4, characterized in that thinner than the thickness of the central portion of the thick of the fin-like projections. 【0127】(付記項6) 内視鏡挿入部の一部に着脱自在に固定される固定部と、体腔内への挿入方向に対して斜め後方または後方に向かって突出した状態で前記固定部に少なくとも1つ接続される柔軟な薄肉状のヒレ状突起部と、を具備し、前記固定部を前記内視鏡挿入部に固定した状態でこの内視鏡挿入部を体腔管内で引き操作するとき、前記ヒレ状突起部が体腔管壁に当接することで、体腔管内での前記内視鏡挿入部の位置を保持する内視鏡挿入補助具であって、前記固定部は略円筒形の部材であり、前記固定部の前記ヒレ状突起部が接続される部分近傍の固定部円周上の少なくとも一部に厚肉部を設けたことを特徴とする内視鏡挿入補助具。 [0127] The fixed part in a state where a fixing portion is detachably fixed to a part of the (Note 6) endoscope insertion portion, protruding toward the obliquely rearward or backward with respect to the insertion direction into the body cavity at least one connected thereto a flexible thin-walled fin protrusions, provided with, the endoscope insertion portion is pulled in a body cavity tube in a state in which the fixing portion is fixed to the endoscope insertion portion when the fin-like protrusions that abut against the body cavity tube wall, an endoscopic insertion aid for holding the position of the endoscope insertion portion in the body cavity tract, the fixing portion of the substantially cylindrical a member, the endoscope insertion aid, wherein the fin-like projections of the fixing portion has a thick portion provided on at least a part of the fixed part circumferential portion near to be connected. 【0128】(付記項7) 前記厚肉部は、前記固定部の外径を均一にし内径側を厚肉化させて形成したことを特徴とする付記項6に記載の内視鏡挿入補助具。 [0128] (Note 7) the thick portion, the endoscope insertion aid according to item 6, characterized in that the inner diameter side a uniform outer diameter of the fixing portion is formed by thickened . 【0129】(付記項8) 前記厚肉部は、前記固定部の内径を均一にし外径側を厚肉化させて形成したことを特徴とする付記項6に記載の内視鏡挿入補助具。 [0129] (Note 8) the thick portion, the endoscope insertion aid according to item 6, characterized in that the uniform and outer diameter side of the inner diameter of the fixing portion is formed by thickened . 【0130】(付記項9) 内視鏡挿入部の一部に着脱自在に固定される固定部と、体腔内への挿入方向に対して斜め後方または後方に向かって突出した状態で前記固定部に少なくとも1つ接続される柔軟な薄肉状のヒレ状突起部と、を具備し、前記固定部を前記内視鏡挿入部に固定した状態でこの内視鏡挿入部を体腔管内で引き操作するとき、前記ヒレ状突起部が体腔管壁に当接することで、体腔管内での前記内視鏡挿入部の位置を保持する内視鏡挿入補助具であって、前記固定部は弾性体の部材で形成され、前記固定部の前記ヒレ状突起部が接続される部分近傍の内径が、前記固定部が装着される内視鏡挿入部の外径よりも小さいことを特徴とする内視鏡挿入補助具。 [0130] The fixed part in a state where a fixing portion is detachably fixed to a part of the (Note 9) endoscope insertion portion, protruding toward the obliquely rearward or backward with respect to the insertion direction into the body cavity at least one connected thereto a flexible thin-walled fin protrusions, provided with, the endoscope insertion portion is pulled in a body cavity tube in a state in which the fixing portion is fixed to the endoscope insertion portion when, by the fin-like projection is in contact with the body cavity tube wall, an endoscopic insertion aid for holding the position of the endoscope insertion portion in the body cavity tract, members of the fixed portion of the elastic member in is formed, the inner diameter of the portion near the fin-like projections are connected to the fixed portion, inserted endoscope which the fixing unit is equal to or smaller than the outer diameter of the endoscope insertion portion to be mounted aid. 【0131】(付記項10) 前記固定部は、前記固定部の前記ヒレ状突起部が接続される部分近傍から、体腔内への挿入方向に対して前側の部分の内径が、前記固定部が装着される内視鏡挿入部の外径よりも小さいことを特徴とする付記項9に記載の内視鏡挿入補助具。 [0131] (Note 10) The fixing part, from a portion near to the fin-like projections of the fixed portion is connected, the inner diameter of the front portion relative to the insertion direction into the body cavity, wherein the fixing part the endoscope insertion aid according to item 9, wherein the smaller than the outer diameter of the endoscope insertion portion to be mounted. 【0132】(付記項11) 前記固定部は、前記固定部の、体腔内への挿入方向に対して後ろ側の端部に前記ヒレ状突起部を接続したことを特徴とする付記項9に記載の内視鏡挿入補助具。 [0132] (Note 11) The fixing part to item 9, wherein the fixed part, and connecting the fin-like projections on the end of the rear side relative to the direction of insertion into the body cavity the endoscope insertion aid according. 【0133】(付記項12) 内視鏡挿入部に一体または着脱自在に固定される固定部と、体腔内への挿入方向に対して斜め後方または後方に向かって突出する、前記固定部に少なくとも1つ接続される柔軟な薄肉状のヒレ状突起部とを有し、前記固定部を前記内視鏡挿入部に固定した状態でこの内視鏡挿入部を体腔管内で引き操作するとき、前記ヒレ状突起部が体腔管壁に当接することで、体腔管内での前記内視鏡挿入部の位置を保持する内視鏡挿入補助具において、前記ヒレ状突起部の周縁部分の少なくとも一部を、前記ヒレ状突起部が前記固定部に接続される部分の一部よりも軟性にしたことを特徴とする内視鏡挿入補助具。 [0133] a fixed portion which is integrally or detachably fixed to (Note 12) endoscope insertion portion, protruding toward the obliquely rearward or backward with respect to the insertion direction into the body cavity, at least on the fixed part and a single connected thereto a flexible thin-walled fin protrusions, when the endoscope insertion portion fixing portion in a state fixed to the endoscope insertion portion is pulled in a body cavity tube, the by fin-like projection portion contacts the cavity tube wall, in the endoscope insertion aid for holding the position of the endoscope insertion portion in the body cavity tract, at least part of the peripheral portion of the fin-like projections the endoscope insertion aid, wherein the fin-like protrusion has a flexible than some of the portion connected to the fixed part. 【0134】(付記項13) 内視鏡挿入部の一部に着脱自在に装着される略管状の固定部と、体腔内への挿入方向に対して斜め後方または後方に向かって突出する、 [0134] a fixed portion of the generally tubular detachably mounted on a part of the (Additional Item 13) endoscope insertion portion, protruding toward the obliquely rearward or backward with respect to the insertion direction into the body cavity,
前記固定部に少なくとも1つ接続される柔軟な薄肉状のヒレ状突起部とを有し、前記固定部を前記内視鏡挿入部に装着した状態でこの内視鏡挿入部を体腔管内で引き操作するとき、前記ヒレ状突起部が体腔管壁に当接することで、体腔管内での前記内視鏡挿入部の位置を保持する内視鏡挿入補助具において、前記固定部は弾性体の部材で形成され、前記固定部の前記ヒレ状突起部が接続される部分近傍の内径が、前記固定部が装着される内視鏡挿入部の外径よりも小さいことを特徴とする内視鏡挿入補助具。 At least one connected thereto and a flexible thin-walled fin protrusions, pulling the endoscope insertion portion in a state where the fixed portion is attached to the endoscope insertion portion in the body cavity tract to the fixed part when operating, by the fin-like projection is in contact with the body cavity tube wall, in the endoscope insertion aid for holding the position of the endoscope insertion portion in the body cavity tract, the fixing portion of the elastic member in is formed, the inner diameter of the portion near the fin-like projections are connected to the fixed portion, inserted endoscope which the fixing unit is equal to or smaller than the outer diameter of the endoscope insertion portion to be mounted aid. 【0135】(付記項14) 内視鏡挿入部の一部に着脱自在に装着される略管状の固定部と、体腔内への挿入方向に対して斜め後方または後方に向かって突出する、 [0135] a fixed portion of the generally tubular detachably mounted on a part of the (Additional Item 14) endoscope insertion portion, protruding toward the obliquely rearward or backward with respect to the insertion direction into the body cavity,
前記固定部に少なくとも1つ接続される柔軟な薄肉状のヒレ状突起部とを有し、前記固定部を前記内視鏡挿入部に装着した状態でこの内視鏡挿入部を体腔管内で引き操作するとき、前記ヒレ状突起部が体腔管壁に当接することで、体腔管内での前記内視鏡挿入部の位置を保持する内視鏡挿入補助具において、前記固定部は弾性体の部材で形成され、前記固定部の前記ヒレ状突起部が接続される部分近傍の内径が、前記固定部が装着される内視鏡挿入部の外径よりも小さいことを特徴とする内視鏡挿入補助具。 At least one connected thereto and a flexible thin-walled fin protrusions, pulling the endoscope insertion portion in a state where the fixed portion is attached to the endoscope insertion portion in the body cavity tract to the fixed part when operating, by the fin-like projection is in contact with the body cavity tube wall, in the endoscope insertion aid for holding the position of the endoscope insertion portion in the body cavity tract, the fixing portion of the elastic member in is formed, the inner diameter of the portion near the fin-like projections are connected to the fixed portion, inserted endoscope which the fixing unit is equal to or smaller than the outer diameter of the endoscope insertion portion to be mounted aid. 【0136】 【発明の効果】以上述べた様に請求項1に記載の内視鏡装置によれば、操作者が特別な作業をしなくても、押し操作の時には進みやすく、引き操作の時には抵抗が増すことで内視鏡挿入部の位置を保持し、内視鏡挿入部の挿入性を向上することができる。 [0136] According to the endoscope apparatus according to claim 1 As mentioned above, according to the present invention, even without the operator extra work, easily proceeds at the time of pressing operation, when the pulling operation is resistance is maintaining the position of the endoscope insertion portion by increasing, it is possible to improve the insertability of the endoscope insertion portion. 【0137】また、請求項1に記載の内視鏡装置によれば、前記内視鏡を体腔内に挿入する際に患者に与える違和感を小さくすることが可能になる。 [0137] Further, according to the endoscope apparatus according to claim 1, it is possible to reduce the sense of discomfort to the patient the endoscope during insertion into the body cavity.

【図面の簡単な説明】 【図1】本発明の第1の実施の形態に係る内視鏡挿入補助具を備えた内視鏡装置を示す外観図。 External view showing an endoscope apparatus having an endoscope insertion aid according to a first embodiment of BRIEF DESCRIPTION OF THE DRAWINGS [Figure 1] present invention. 【図2】図1の第1の実施の形態の内視鏡挿入部に装着される内視鏡挿入補助具を示す斜視図。 Figure 2 is a perspective view showing an endoscope insertion aid mounted on the endoscope insertion portion of the first embodiment of FIG. 【図3】図1の第1の実施の形態の内視鏡挿入補助具を固定部の長手中心軸で切断した場合の半断面図。 [Figure 3] half cross-sectional view in the case of a cut in the longitudinal central axis of the fixed part the endoscope insertion aid of the first embodiment FIG. 【図4】図1の第1の実施の形態の図3とは別の例の内視鏡挿入補助具を固定部の長手中心軸で切断した場合の半断面図。 [4] half cross-sectional view taken endoscope insertion aid of another example in the longitudinal central axis of the fixing portion and Fig. 3 of the first embodiment of FIG. 【図5】図1の第1の実施の形態の内視鏡挿入補助具を内視鏡挿入部に装着した様子を示す説明図。 Figure 5 is an explanatory view showing a state mounted on the endoscope insertion portion of the endoscope insertion aid according to the first embodiment of FIG. 【図6】図1の第1の実施の形態の内視鏡挿入部を大腸のS状結腸から下行結腸に挿入していく様子を示す第1 [6] first showing how to insert the descending colon an endoscope insertion portion of the first embodiment of FIG. 1 from the S-shaped colon of the large intestine
の説明図。 Illustration. 【図7】図1の第1の実施の形態の内視鏡挿入部を大腸のS状結腸から下行結腸に挿入していく様子を示す第2 [7] The second showing how to insert the descending colon an endoscope insertion portion of the first embodiment of FIG. 1 from the S-shaped colon of the large intestine
の説明図。 Illustration. 【図8】図1の第1の実施の形態の内視鏡挿入部を大腸のS状結腸から下行結腸に挿入していく様子を示す第3 [8] The third of the endoscope insertion portion of the first embodiment of FIG. 1 from the S-shaped colon of the large intestine showing how to insert the descending colon
の説明図。 Illustration. 【図9】本発明の第1の実施の形態の第1の変形例を示す内視鏡挿入部の側面図。 Figure 9 is a side view of the endoscope insertion portion showing a first modification of the first embodiment of the present invention. 【図10】本発明の第1の実施の形態の第2の変形例を示す内視鏡挿入部の側面図。 Figure 10 is a side view of the endoscope insertion portion showing a second modification of the first embodiment of the present invention. 【図11】本発明の第2の実施の形態に係る内視鏡挿入補助具の斜視図。 Figure 11 is a perspective view of an endoscope insertion aid according to a second embodiment of the present invention. 【図12】図11の第2の実施の形態の内視鏡挿入補助具が内視鏡挿入部に装着された状態で、ヒレ状突起部の長手方向の中心軸に対して垂直な平面で切断した断面図。 [12] In a state where the endoscope insertion aid according to the second embodiment is mounted to the endoscope insertion portion in FIG. 11, in the longitudinal direction a plane perpendicular to the central axis of the fin-like projections section cut view. 【図13】図11の第2の実施の形態のヒレ状突起部の1枚を拡大した第1の説明図。 [13] first explanatory view enlarging a single fin-like projections of the second embodiment of FIG. 11. 【図14】図11の第2の実施の形態のヒレ状突起部の1枚を拡大した第2の説明図。 [14] a second explanatory view enlarging a single fin-like projections of the second embodiment of FIG. 11. 【図15】図11の第2の実施の形態の前記内視鏡挿入補助具が内視鏡挿入部に装着された状態でヒレ状突起部が内視鏡挿入部に当接するように変形した場合の斜視図。 Fin protrusions is deformed so as to contact the endoscope insertion portion in a state where the endoscope insertion aid is attached to the endoscope insertion portion of the second embodiment of FIG. 15 11 perspective view of. 【図16】図15に示した状態の内視鏡挿入部および内視鏡挿入補助具を固定部の長手中心軸に垂直なヒレ状突起部を通る平面で切断した場合の断面図。 Figure 16 is a cross-sectional view taken along the plane passing through the vertical fin protrusions endoscope insertion portion and endoscopic insertion aid in the state shown in longitudinal central axis of the fixing portion in FIG. 15. 【図17】本発明の第3の実施の形態に係る内視鏡挿入補助具の斜視図。 Perspective view of an endoscope insertion aid according to the third embodiment of FIG. 17 the present invention. 【図18】図17の第3の実施の形態の内視鏡挿入補助具を固定部の長手中心軸に対して垂直な平面で切断した断面図。 [18] Third cross-sectional view taken along a plane perpendicular to the endoscope insertion aid embodiment with respect to the longitudinal central axis of the fixed portion of the Figure 17. 【図19】図1の第1の実施の形態の内視鏡挿入部に装着された内視鏡挿入補助具が腸壁等の管腔から外力を受けたときの変形の様子を示す第1の説明図。 [19] first the first embodiment of the endoscope insertion endoscope is attached to the unit insertion assisting tool of FIG. 1 shows the state of deformation when subjected to an external force from the lumen, such as the intestinal wall illustration. 【図20】図1の第1の実施の形態の内視鏡挿入部に装着された内視鏡挿入補助具が腸壁等の管腔から外力を受けたときの変形の様子を示す第2の説明図。 [20] The second to the first embodiment of the endoscope insertion endoscope is attached to the unit insertion assisting tool of FIG. 1 shows the state of deformation when subjected to an external force from the lumen, such as the intestinal wall illustration. 【図21】図1の第1の実施の形態の内視鏡挿入部に装着された内視鏡挿入補助具が腸壁等の管腔から外力を受けたときの変形の様子を示す第3の説明図。 [21] Third the first embodiment of the endoscope insertion endoscope was mounted in the unit insertion assisting tool of FIG. 1 shows the state of deformation when subjected to an external force from the lumen of such the intestinal wall illustration. 【図22】本発明の第3の実施の形態の第1の変形例に係る内視鏡挿入補助具の斜視図。 Figure 22 is a perspective view of an endoscope insertion aid according to a first modification of the third embodiment of the present invention. 【図23】本発明の第3の実施の形態の第1の変形例に係る内視鏡挿入補助具の前記内視鏡挿入部に装着した状態の断面図。 [23] Third first cross-sectional view of a state mounted on the endoscope insertion portion of the endoscope insertion aid according to a modification of the embodiment of the present invention. 【図24】本発明の第3の実施の形態の第2の変形例に係る内視鏡挿入補助具の断面図。 Sectional view of the endoscope insertion aid according to a second modification of the third embodiment of FIG. 24 the present invention. 【図25】本発明の第3の実施の形態の第3の変形例に係る内視鏡挿入補助具の断面図。 Figure 25 is a cross-sectional view of the endoscope insertion aid according to the third modification of the third embodiment of the present invention. 【図26】本発明の第4の実施の形態に係る内視鏡挿入補助具を示す半断面図。 [26] half cross-sectional view showing the endoscope insertion aid according to a fourth embodiment of the present invention. 【図27】図26の第4の実施の形態の内視鏡挿入補助具を内視鏡挿入部に取り付ける場合の第1の操作を示す説明図。 Figure 27 is an explanatory diagram showing a first operation for installing the endoscope insertion portion of the endoscope insertion aid according to the fourth embodiment of FIG. 26. 【図28】図26の第4の実施の形態の内視鏡挿入補助具を内視鏡挿入部に取り付ける場合の第1の操作を示す説明図。 Figure 28 is an explanatory view showing a first operation for installing the fourth endoscope insertion portion an endoscope insertion aid according to the embodiment of FIG. 26. 【図29】図26の第4の実施の形態の内視鏡挿入補助具を内視鏡挿入部に装着した状態を示す断面図。 Figure 29 is a sectional view showing a state of mounting the endoscope insertion portion and the fourth endoscope insertion aid of the embodiment of FIG. 26. 【図30】図26の第4の実施の形態の作用を説明するための比較例を示す説明図。 Figure 30 is an explanatory view showing a comparative example for explaining the operation of the fourth embodiment of FIG. 26. 【図31】図30の内視鏡挿入補助具を内視鏡挿入部に取り付ける作業の第1の例を説明する説明図。 Figure 31 is an explanatory diagram for explaining a first example of the work of attaching to the endoscope insertion portion of the endoscope insertion aid of Fig. 30. 【図32】図30の内視鏡挿入補助具を内視鏡挿入部に取り付ける作業の第2の例を説明する説明図。 Figure 32 is an explanatory diagram for explaining a second example of a work for attaching the endoscope insertion portion of the endoscope insertion aid of Fig. 30. 【図33】本発明の第4の実施の形態の第1の変形例に係る内視鏡挿入補助具の半断面図。 [33] half cross-sectional view of the endoscope insertion aid according to a first modification of the fourth embodiment of the present invention. 【図34】本発明の第4の実施の形態の第2の変形例に係る内視鏡挿入補助具の半断面図。 [34] half cross-sectional view of the endoscope insertion aid according to a second modification of the fourth embodiment of the present invention. 【図35】本発明の第4の実施の形態の第3の変形例に係る内視鏡挿入補助具の半断面図。 [Figure 35] half cross-sectional view of the endoscope insertion aid according to a third modification of the fourth embodiment of the present invention. 【符号の説明】 1 …内視鏡装置2 …内視鏡3 …内視鏡挿入補助具11 …内視鏡挿入部12 …操作部21 …先端部22 …湾曲部23 …軟性部31 …固定部32 …ヒレ状突起部33 …硬性部34 …軟性部 [Description of Reference Numerals] 1 ... endoscope apparatus 2 ... endoscope 3 ... endoscope insertion aid 11 ... endoscope insertion portion 12 ... operating portion 21 ... tip 22 ... curved portion 23 ... flexible portion 31 ... fixing part 32 ... fin protrusions 33 ... rigid portion 34 ... flexible portion

Claims (1)

  1. 【特許請求の範囲】 【請求項1】 内視鏡挿入部に一体または着脱自在に固定される固定部と、 体腔内への挿入方向に対して斜め後方または後方に向かって突出した状態で前記固定部に少なくとも1つ接続される柔軟な薄肉状のヒレ状突起部と、 を具備し、前記固定部を前記内視鏡挿入部に固定した状態でこの内視鏡挿入部を体腔管内で引き操作するとき、 A fixed portion which is integrally or detachably fixed to the Claims 1 endoscope insertion portion, the while protruding obliquely rearward or backward with respect to the insertion direction into the body cavity comprising at least one connected thereto a flexible thin-walled fin protrusions, to the fixed portion, pulling the endoscope insertion portion of the fixing portion in a state of being fixed to the endoscope insertion portion in the body cavity tract when operating,
    前記ヒレ状突起部が体腔管壁に当接することで、体腔管内での前記内視鏡挿入部の位置を保持する内視鏡挿入補助具であって、 前記ヒレ状突起部の周縁部分の少なくとも一部を、前記ヒレ状突起部が前記固定部に接続される部分の一部よりも軟性にしたことを特徴とする内視鏡挿入補助具。 By the fin-like projection is in contact with the body cavity tube wall, an endoscopic insertion aid for holding the position of the endoscope insertion portion in the body cavity tract, at least the peripheral portion of the fin-like projections part, the endoscope insertion aid the fin-like projection is characterized in that the flexible than some of the portion connected to the fixed part.
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JP2006192091A (en) * 2005-01-14 2006-07-27 Pentax Corp Distal end part of endoscope to be inserted into large intestine
JP2006192089A (en) * 2005-01-14 2006-07-27 Pentax Corp Distal end part of endoscope to be inserted into large intestine
JP2006192087A (en) * 2005-01-14 2006-07-27 Makoto Kobayashi Distal end part of endoscope to be inserted into large intestine
JP2006192088A (en) * 2005-01-14 2006-07-27 Makoto Kobayashi Distal end part of endoscope to be inserted into large intestine
JP2006192086A (en) * 2005-01-14 2006-07-27 Makoto Kobayashi Distal end part of endoscope to be inserted into large intestine
JP2006192090A (en) * 2005-01-14 2006-07-27 Pentax Corp Distal end part of endoscope to be inserted into large intestine
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JP2006192089A (en) * 2005-01-14 2006-07-27 Pentax Corp Distal end part of endoscope to be inserted into large intestine
JP2006192087A (en) * 2005-01-14 2006-07-27 Makoto Kobayashi Distal end part of endoscope to be inserted into large intestine
JP2006192088A (en) * 2005-01-14 2006-07-27 Makoto Kobayashi Distal end part of endoscope to be inserted into large intestine
JP2006192086A (en) * 2005-01-14 2006-07-27 Makoto Kobayashi Distal end part of endoscope to be inserted into large intestine
JP2006192090A (en) * 2005-01-14 2006-07-27 Pentax Corp Distal end part of endoscope to be inserted into large intestine
JP2006192091A (en) * 2005-01-14 2006-07-27 Pentax Corp Distal end part of endoscope to be inserted into large intestine
JP4648712B2 (en) * 2005-01-14 2011-03-09 Hoya株式会社 Tip of the large intestine inserted endoscope
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