JP2005131212A - External channel for endoscope and endoscope device - Google Patents

External channel for endoscope and endoscope device Download PDF

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Publication number
JP2005131212A
JP2005131212A JP2003372354A JP2003372354A JP2005131212A JP 2005131212 A JP2005131212 A JP 2005131212A JP 2003372354 A JP2003372354 A JP 2003372354A JP 2003372354 A JP2003372354 A JP 2003372354A JP 2005131212 A JP2005131212 A JP 2005131212A
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portion
channel
endoscope
embodiment
insertion
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Tsutomu Ishiguro
Takahiro Kishi
Yasuto Kura
Toshio Nakamura
Akira Suzuki
俊夫 中村
康人 倉
孝浩 岸
努 石黒
明 鈴木
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Olympus Corp
オリンパス株式会社
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Priority to JP2003372354A priority Critical patent/JP2005131212A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an external channel for an endoscope and an endoscope device which prevents a hole from occurring buckling or from coming along with the occurrence of a hole due to the pushing out of a procedure tool is bypassed. <P>SOLUTION: The external channel for the endoscope and the endoscope device has a flexible procedure insertion tubular channel 11 capable of inserting and passing the procedure tool within the same, a fixing portion for fixing the procedure tool insertion tubular channel to the insertion portion of the endoscope, and a channel reinforcing material 15 for covering around the periphery of the procedure tool insertion tubular channel. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、内視鏡に併設されて処置具を挿通可能な外付けチャンネル及びこれを備えた内視鏡装置に関する。 The present invention relates to an endoscope apparatus equipped can be inserted external channel and which are parallel in the endoscope treatment tool.

内視鏡の挿入部に後付けにより併設されるいわゆる外付けチャンネルは、前記挿入部のうち湾曲操作可能な湾曲部に合わせて曲がりやすく、また曲げたときに座屈しないことが好ましい。 So-called external channels juxtaposed by retrofitting the insertion portion of the endoscope is preferably not buckle when the bend easily to conform to bending operation can bend out of the insertion portion and bent. このため、従来、例えば特許文献1には、管路部材にコイルを螺旋状に巻いたものや伸縮性のあるチューブを用いた外付けチャンネルが提案されている。 Therefore, conventionally, for example, Patent Document 1, external channel using a tube or stretchy that wound coil spirally conduit member has been proposed.
特開平5−317241号公報(図12参照) JP-5-317241 discloses (see Fig. 12)

しかしながら、上記従来の外付けチャンネルには、以下の課題が残されている。 However, above conventional external channel, the following problems remain.
例えば、図17に示すように、外付けチャンネル1内に処置具2を挿通させた際に、外付けチャンネル1の湾曲により処置具2が曲がりきらない場合、管路部材3に螺旋状に巻いたコイル4の隙間から、外付けチャンネル1の管路内壁に孔Hを開けて処置具先端がその孔Hから外部に突き出てしまうおそれがある。 For example, as shown in FIG. 17, winding upon is inserted treatment instrument 2 to external channel 1, when the treatment instrument 2 by bending the external channel 1 not completely bend, helically conduit member 3 from the gap of the coil 4 which had, there is a possibility that external conduits treatment instrument distal end opening the hole H on the inner wall of the channel 1 will protrude to the outside from the hole H. この孔Hの開いた部分は、外付けチャンネル1の強度が低下し、チャンネル自体が座屈するおそれがある。 Open portion of the hole H is reduced the strength of the external channel 1, channel itself is likely to buckle. この座屈が生じると処置具の挿通が不良になり、処置ができなくなったり、処置具が抜けなくなったりするおそれもある。 Become inserted between the treatment instrument this buckling occurs defective, or becomes impossible treatment, possibility also to or longer escape treatment instrument.

本発明は、前述の課題に鑑みてなされたもので、処置具突き出しによる孔の発生を防止又は孔発生に伴う座屈を回避することができる内視鏡用の外付けチャンネル及び内視鏡装置を提供することを目的とする。 The present invention has been made in view of the above-external channel and the endoscope endoscopic device capable of avoiding buckling due to prevention or hole occurrence the occurrence of holes due to the treatment instrument projecting an object of the present invention is to provide a.

本発明は、前記課題を解決するために以下の構成を採用した。 The present invention adopts the following configurations in order to solve the above problems. すなわち、本発明の内視鏡用の外付けチャンネルは、内部に処置具を挿通可能な可撓性を有する処置具挿通管路と、該処置具挿通管路を内視鏡の挿入部に固定する固定部と、前記処置具挿通管路の周囲に被覆された管路補強材とを備えていることを特徴とする。 That is, external channel for an endoscope of the present invention, fixing the treatment instrument insertion duct having an insertion, flexible treatment instrument therein, the insertion portion of the endoscope the instrument insertion conduit a fixing unit which is characterized in that it comprises a said instrument insertion conduit surrounding coated the conduit reinforcements.
この内視鏡用の外付けチャンネルでは、処置具挿通管路の周囲に被覆された管路補強材を備えているので、処置具挿通管路内から処置具先端が突き出ようとしても突き抜け可能な隙間がなく管路補強材に当たって突き抜けが阻止される。 The external channel for the endoscope is provided with the pipe reinforcement coated around the treatment instrument insertion duct, which can also penetrate the so projecting the treatment instrument distal end of the treatment instrument insertion passage penetration against the pipe reinforcement without gaps is prevented.

また、本発明の内視鏡用の外付けチャンネルは、前記管路補強材が、前記処置具挿通管路の周囲のうち前記挿入部の湾曲操作な湾曲部に固定される部分に設けられる第1の補強部と、前記処置具挿通管路の周囲のうち前記湾曲部以外の部分に固定される第2の補強部とを有し、前記第1の補強部が、前記第2の補強部よりも柔軟であることを特徴とする。 Also, external channel for an endoscope of the present invention, first the pipe reinforcement is provided in a portion that is fixed to the bending operation of the bending portion of the insertion portion of the periphery of the treatment instrument insertion duct a first reinforcement portion, and a second reinforcing portion fixed to a portion other than the curved portion of the periphery of the treatment instrument insertion channel, the first reinforcing portion, the second reinforcing portion characterized in that it is more flexible than.
この内視鏡用の外付けチャンネルでは、第1の補強部が第2の補強部よりも柔軟であるので、湾曲部に固定される部分は曲がり易く、かつその他の部分は曲がり易さよりも補強性がより高く維持されて処置具の突き抜けをより防ぐことができる。 The external channel for the endoscope, since the first reinforcing portion is more flexible than the second reinforcing portion, the portion which is fixed to the curved portion more bendable, and than ease bend other portions reinforcement sex and is maintained higher penetration of the treatment instrument can be further prevented.

本発明の内視鏡用の外付けチャンネルは、内部に処置具を挿通可能な可撓性を有する処置具挿通管路と、該処置具挿通管路を内視鏡の挿入部に固定する固定部と、前記処置具挿通管路の内壁における孔の発生を検知する孔開き検知手段とを備えていることを特徴とする。 External channel for an endoscope of the present invention is fixed to the insertion portion of the endoscope and the therapeutic device insertion conduit having an insertion, flexible treatment instrument therein, the instrument insertion conduit fixed and parts, characterized in that it comprises a perforated detecting means for detecting the occurrence of holes in the inner wall of the instrument insertion conduit.
すなわち、この内視鏡用の外付けチャンネルでは、処置具挿通管路の内壁における孔の発生を検知する孔開き検知手段を備えているので、孔開き検知手段により孔が開いたことを認識することにより、孔の開いた状態での使用を避け、処置具の突き抜けを回避できると共に座屈が生じることを回避することができる。 In other words, it recognizes that the external channel for the endoscope is provided with the perforated detection means for detecting the occurrence of holes in the inner wall of the treatment instrument insertion duct, which by perforated detector hole is opened it allows avoiding the use of a state in which an open hole, it is possible to prevent the buckling occurs can be avoided penetration of the treatment instrument.

本発明の内視鏡装置は、上記本発明の内視鏡用の外付けチャンネルを備えていることを特徴とする。 The endoscope apparatus of the present invention is characterized in that it comprises an external channel for an endoscope of the present invention.

本発明によれば、以下の効果を奏する。 According to the present invention, the following effects.
すなわち、本発明に係る内視鏡用の外付けチャンネル及びこれを備えた内視鏡装置によれば、処置具突き出しによる孔の発生を防止又は孔発生に伴う座屈を回避することができ、内視鏡の挿入部挿入時に、処置具の高い取り扱い性及び操作性を得ることができる。 That is, according to the endoscope apparatus equipped with an external channel and this for an endoscope according to the present invention, it is possible to avoid buckling due to prevention or hole occurrence the occurrence of holes due to the treatment instrument protrudes, during the insertion portion insertion of the endoscope, it is possible to obtain a high treatment instrument handling and operability.

以下、本発明に係る内視鏡用の外付けチャンネル及びこれを備えた内視鏡装置の第1実施形態を、図1から図3を参照しながら説明する。 Hereinafter, a first embodiment of the external channel and the endoscope apparatus including the for an endoscope according to the present invention will be described with reference to FIGS.

本実施形態の内視鏡用の外付けチャンネル10は、図1及び図2に示すように、可撓性を有するチャンネルチューブ(処置具挿通管路)11と、該チャンネルチューブ11を内視鏡12の挿入部13に固定する複数の固定部14と、チャンネルチューブ11の周囲(外表面上)に被覆されチャンネルチューブ11よりも高強度な網状体の管路補強材15とを備えている。 External channel 10 for an endoscope of the present embodiment, as shown in FIGS. 1 and 2, the flexible and channel tube (therapeutic device insertion conduit) 11 with an endoscope the channel tube 11 a plurality of fixing portions 14 for fixing the insertion portion 13 of the 12, and a conduit reinforcement 15 of high-strength mesh body than the channel tube 11 is covered around (on the outer surface) of the channel tube 11.
前記チャンネルチューブ11は、樹脂製であり、内部に処置具2が挿通可能となっている。 The channel tube 11 is made of resin, the treatment instrument 2 is made can be inserted therein. 前記管路補強材15は、金属製(例えば、SUS)であり、接着剤やポリウレタン樹脂からなる補強材固定部16及びチャンネルチューブ11自身の溶着によりチャンネルチューブ11に固定されてチャンネルチューブ11と一体的に曲がるようになっている。 The conduit reinforcing material 15 is a metal (e.g., SUS), the adhesive and reinforcing material secured to the channel tube 11 by welding of the fixing portion 16 and the channel tube 11 itself the channel tube 11 integrally made of a polyurethane resin so that the bend in the manner.

また、前記管路補強材15の編み込み密度は、高いと柔軟性が失われ、低いと突き抜け防止効果が失われるため、30〜90%の範囲にあることが望ましく、内視鏡12の湾曲角度や形状に応じて設定される。 Also, weaving density of the conduit reinforcing material 15, high and flexibility is lost, since the effect of preventing penetration and low loss, preferably in the range of 30% to 90%, the bending angle of the endoscope 12 It is set in accordance with the or shape.
このように管路補強材15は、チャンネルチューブ11周囲を被覆しているため、従来のコイルに比べて処置具2が突き抜け可能な隙間がない。 The pipe reinforcement 15 as is because covering the periphery the channel tube 11, the treatment instrument 2 is no gap that can penetrate as compared to conventional coil.
前記固定部14は、断面円弧状の樹脂製弾性部材であり、チャンネルチューブ11を内側に配した状態で挿入部13にはめ込むことにより弾性力でチャンネルチューブ11を挿入部13に固定するものである。 The fixing portion 14 is a cross-sectional circular arc shape of the resin elastic member is for fixing the channel tube 11 in the insertion portion 13 with the elastic force by fitting the insertion portion 13 in a state where we arranged channel tube 11 inwardly .

上記外付けチャンネル10が取り付け固定される内視鏡12は、図3に示すように、体腔内に挿入する挿入部13と、体腔の外側に配される操作部17とを備えている。 The endoscope 12 in which the external channel 10 is fixedly attached, as shown in FIG. 3, and includes an insertion portion 13 to be inserted into a body cavity and an operation portion 17 that is disposed outside the body cavity. 前記挿入部13は、先端から順に、先端部13aと、操作部17により湾曲操作可能な湾曲部13bと、可撓管部13cとで構成されている。 The insertion portion 13 includes, in order from the tip, and the tip portion 13a, a bending operation can be curved portion 13b by the operation unit 17, and a flexible tube portion 13c. なお、前記チャンネルチューブ11は、前記先端部13a、可撓管部13cの先端及び中間位置でそれぞれ固定部14により固定され、湾曲部13bでは固定されていない。 Incidentally, the channel tube 11, the distal end portion 13a, are fixed by the fixed portion 14 at the tip and intermediate position of the flexible tube portion 13c, not fixed in the curved portion 13b.

前記先端部13aには、CCDに体腔内の観察画像を結像させるための観察窓、体腔内の観察部分を照らす照明窓、各種処置具を挿通して処置を行うためのチャンネルの開口部等が設けられている。 Wherein the distal end portion 13a, an observation window for forming an observation image in the body cavity to CCD, an illumination window to illuminate the observation portion in a body cavity, the opening of the channel for performing a treatment by inserting various treatment instruments, etc. It is provided. なお、挿入部13内にチャンネルがない内視鏡を用いてもよい。 It is also possible to use the endoscope without channels in the insertion portion 13. 前記可撓管部13cは、体腔内の形状に応じて湾曲できるようになっている。 The flexible tube portion 13c is adapted to be bent according to the shape of the body cavity. 前記操作部17は、湾曲部13bを湾曲させて先端部13aの向きを変更させる等の各種操作を行うように構成されている。 The operation unit 17 is configured to perform various operations such as changing the orientation of the curving the bending portion 13b and the tip portion 13a.
このような内視鏡12に外付けチャンネル10を取り付けて固定することにより、内視鏡装置が構成される。 By fixing attach the external channel 10 to such an endoscope 12, it is configured endoscope apparatus.

このように上記内視鏡用の外付けチャンネル10及びこれを取り付けた内視鏡装置では、チャンネルチューブ11の周囲に被覆された管路補強材15によって、チャンネルチューブ11内から処置具2先端が突き出ようとしても管路補強材15に当たって突き抜けが阻止される。 In this way, the endoscope apparatus external channel 10 and attached to it for the endoscope is via line reinforcement 15 which is coated on the periphery of the channel tube 11, the treatment instrument 2 from the tip inside the channel tube 11 penetration against the pipe reinforcement 15 is prevented even if Tsukideyo.

次に、本発明に係る第2実施形態及び第3実施形態について、図4及び図5を参照して説明する。 Next, the second and third embodiments of the present invention will be described with reference to FIGS.
なお、以下の説明において、上記実施形態において説明した同一の構成要素には同一の符号を付し、その説明は省略する。 In the following description, the same reference numerals are given to the same components described in the above embodiment, a description thereof will be omitted.

第2実施形態と第1実施形態との異なる点は、第1実施形態では金属製の管路補強材15を採用したのに対し、第2実施形態の外付けチャンネル20では、図4に示すように、樹脂製(ポリウレタン、フッ素樹脂等)の管路補強材25を採用した点である。 The point of difference between the second embodiment and the first embodiment, whereas in the first embodiment employs the metallic pipe stiffener 15, the external channel 20 of the second embodiment, shown in FIG. 4 as a point of adopting the pipeline reinforcement 25 made of a resin (polyurethane, fluorocarbon resin, etc.). なお、第2実施形態においても、管路補強材25の強度特性は、処置具2の突き出しを防ぐためにチャンネルチューブ11よりも高いことが好ましい。 In the second embodiment also, the strength properties of the pipe reinforcement 25 is preferably higher than the channel tube 11 to prevent protrusion of the treatment instrument 2.
このように本実施形態では、管路補強材25を樹脂製とすることにより、生体と接触した際に金属製よりも生体に対して当たりがやさしい、すなわち金属製よりも弾性があり接触時に緩衝効果がある。 As described above, in this embodiment, by a conduit stiffener 25 made of resin, than metal when in contact with biological friendly contact to the living, i.e. the buffer upon contact has elasticity than metal effective.
なお、チャンネルチューブ11と同じ材料を管路補強材25に用いてもよく、この場合、リサイクルしやすい利点がある。 Incidentally, may be made of the same material as the channel tube 11 to the conduit reinforcement 25, in this case, there is easily recycled advantages.

また、第3実施形態と第1実施形態との異なる点は、第1実施形態ではチャンネルチューブ11の軸方向に一定の強度の管路補強材15を採用したのに対し、第3実施形態の外付けチャンネル30では、図5に示すように、管路補強材35が、チャンネルチューブ11の周囲のうち挿入部13の湾曲部13bに固定される部分に設けられる第1の補強部34aと、チャンネルチューブ11の周囲のうち湾曲部13b以外の部分に固定される第2の補強部35bとを有し、第1の補強部35aが第2の補強部35bよりも柔軟である点である。 Moreover, the point of difference between the third embodiment and the first embodiment, in the first embodiment while employing a constant intensity in line reinforcement 15 in the axial direction of the channel tube 11, the third embodiment in external channel 30, as shown in FIG. 5, the first reinforcement portion 34a conduit reinforcement 35, which is provided in a portion which is fixed to the curved portion 13b of the insertion portion 13 of the periphery of the channel tube 11, and a second reinforcing portion 35b which is fixed to a portion other than the curved portion 13b of the periphery of the channel tube 11, in that the first reinforcement portion 35a is softer than the second reinforcing portion 35b. なお、第1の補強部35a及び第2の補強部35bは、チャンネルチューブ11に補強材固定部16で両端が固定されて被覆される。 The first reinforcement portion 35a and the second reinforcement portion 35b is across the channel tube 11 in the reinforcing member fixing portion 16 is coated is fixed.

本実施形態の外付けチャンネル30は、第1の補強部35aが第2の補強部35bよりも編み込み密度が小さくなっており、第1の補強部35aと第2の補強部35bとが異なる強度に設定されている。 External channel 30 of the present embodiment, the first reinforcement portion 35a has become smaller weave density than the second reinforcing portion 35b, the strength of the first reinforcement portion 35a and the second reinforcing portion 35b is different It is set to. このため、第1の補強部35aの強度が第2の補強部35bよりも低く、第1の補強部35aが曲がりやすくなっている。 Therefore, strength of the first reinforcement portion 35a is in the second lower than the reinforcing portion 35b, is easily bent first reinforcement portion 35a.
なお、第1の補強部35aと第2の補強部35bとの強度差は、編み込み密度の差以外に、網状を形成する素線の強度の強弱(例えば、太さや材質)を変えることにより達成することができる。 The intensity difference between the first reinforcing portion 35a and the second reinforcing portion 35b, in addition to the difference in knitting density, accomplished by varying the intensity of the intensity of the strand to form a network (e.g., thickness and material) can do.
このように本実施形態では、第1の補強部35aが第2の補強部35bよりも柔軟であるので、湾曲部13bに固定される部分は曲がり易く、かつその他の部分は曲がり易さよりも補強性がより高く維持されて処置具2の突き抜けをより防ぐことができる。 As described above, in this embodiment, since the first reinforcement part 35a is flexible than the second reinforcing portion 35b, the portion which is fixed to the curved portion 13b is easy to bend, and than ease bend other portions reinforcement sex and is maintained higher penetration of the treatment instrument 2 can be further prevented.

次に、本発明に係る第4実施形態及び第5実施形態について、図6及び図7を参照して説明する。 Next, a fourth embodiment and fifth embodiment of the present invention will be described with reference to FIGS.
なお、以下の説明において、上記実施形態において説明した同一の構成要素には同一の符号を付し、その説明は省略する。 In the following description, the same reference numerals are given to the same components described in the above embodiment, a description thereof will be omitted.

第4実施形態と第1実施形態との異なる点は、第1実施形態ではチャンネルチューブ11の外表面上に管路補強材15を接着剤等の補強材固定部16で固定し被覆したのに対し、第4実施形態の外付けチャンネル40では、図6に示すように、チャンネルチューブ11表面内に管路補強材15が埋め込まれて一体的に形成されている点である。 The difference between the fourth embodiment and the first embodiment, although the fixed covered by the reinforcing member fixing portion 16 such as adhesive a pipe reinforcement 15 on the outer surface of the channel tube 11 in the first embodiment against, the external channel 40 of the fourth embodiment, as shown in FIG. 6, a point which is formed integrally is buried pipe reinforcement 15 to the channel tube 11 in the surface. すなわち、本実施形態では、チャンネルチューブ11の周囲に管路補強材15を巻いた状態でチャンネルチューブ11に熱を加えて表面を溶融させることにより管路補強材15をチャンネルチューブ11表面内に取り込み、そして冷却することでチャンネルチューブ11と管路補強材15とを一体化させている。 That is, in the present embodiment takes a conduit reinforcement 15 by melting the surface by applying heat to the channel tube 11 in a state wound pipe reinforcement 15 around the channel tube 11 to the channel tube 11 in the surface and it is made to integrate the channel tube 11 and the pipe reinforcement 15 by cooling.
本実施形態では、管路補強材15の固定に補強材固定部16が不要であり、また管路補強材15の固定がより強固なものとなり、曲げやすくなる。 In the present embodiment, it is unnecessary to reinforcement fixing unit 16 to fix the pipe reinforcement 15, also fixed in line reinforcement 15 becomes more robust, easily bending.

また、第5実施形態と第1実施形態との異なる点は、第1実施形態ではチャンネルチューブ11の周囲に網状体の管路補強材15を被覆したのに対し、第5実施形態の外付けチャンネル50では、図7に示すように、チャンネルチューブ11の周囲に均一な樹脂層である管路補強材55を被覆している点である。 Further, the fifth embodiment differs from the first embodiment, while the coated conduits reinforcement 15 of the mesh body around the channel tube 11 in the first embodiment, the external of the fifth embodiment in channel 50, as shown in FIG. 7, a point covering the pipe reinforcement 55 is uniform resin layer around the channel tube 11. すなわち、本実施形態では、チャンネルチューブ11の外表面に樹脂を塗布してチャンネルチューブ11よりも硬質な樹脂層の管路補強材55を形成することにより、第1実施形態と同様の効果が得られる。 That is, in this embodiment, by forming the pipe reinforcement 55 of hard resin layer than the channel tube 11 by application of a resin to the outer surface of the channel tube 11, the same effect as the first embodiment is obtained It is.

次に、本発明に係る第6実施形態及び第7実施形態について、図8及び図9を参照して説明する。 Next, a sixth and seventh embodiments of the present invention will be described with reference to FIGS.
なお、以下の説明において、上記実施形態において説明した同一の構成要素には同一の符号を付し、その説明は省略する。 In the following description, the same reference numerals are given to the same components described in the above embodiment, a description thereof will be omitted.

第6実施形態と第1実施形態との異なる点は、第1実施形態ではチャンネルチューブ11の周囲に網状体の管路補強材15を被覆したのに対し、第6実施形態の外付けチャンネル60では、図8に示すように、チャンネルチューブ11の周囲に複数の棒状の管路補強材65を被覆した点である。 The point of difference between the sixth embodiment and the first embodiment, whereas in the first embodiment was coated conduits reinforcement 15 of the mesh body around the channel tube 11, external of the sixth embodiment channel 60 in, as shown in FIG. 8, a point obtained by coating the pipe reinforcement 65 of a plurality of bar-like around the channel tube 11. すなわち、本実施形態では、チャンネルチューブ11の周囲にその軸方向に沿って金属製の棒状管路補強材65を複数配設している。 That is, in this embodiment, has a bar-like line reinforcement 65 made of metal along the axial direction on the periphery of the channel tube 11 arranging a plurality. 各管路補強材65のピッチPは、使用する処置具の外径より小さく設定されるが、最小ピッチとして1mmに設定すれば通常の処置具の突き抜けを防ぐことができる。 Pitch P of each line reinforcement 65 is set smaller than the outer diameter of the treatment instrument to be used, it is possible to prevent the penetration of conventional treatment instrument is set to 1mm as the minimum pitch.

また、第7実施形態と第6実施形態との異なる点は、第6実施形態ではチャンネルチューブ11の周囲に棒状の管路補強材65だけを被覆したのに対し、第7実施形態の外付けチャンネル70では、図9に示すように、チャンネルチューブ11の周囲に複数の棒状の管路補強材65に加えて螺旋状の管路補強材75を巻き付けた複合体で被覆した点である。 Moreover, the point of difference between the seventh embodiment and the sixth embodiment, while the cover only rod-shaped conduit reinforcement 65 around the channel tube 11 in the sixth embodiment, an external seventh embodiment in channel 70, as shown in FIG. 9, in that coated with complexes wound spiral pipe stiffener 75 in addition to the line reinforcement 65 of a plurality of bar-like around the channel tube 11. すなわち、本実施形態では、互いに交差する棒状の管路補強材65と螺旋状の管路補強材75とにより網状体に近い複合体となり、第1実施形態と同様に処置具の突き抜け防止効果がより高くなる。 That is, in this embodiment, it is complex close to the mesh body by the line reinforcement 65 and the spiral of the conduit reinforcement 75 bar-like cross each other, the penetration preventing effect of the first embodiment similarly to the treatment instrument more increases.

次に、本発明に係る第8実施形態及び第9実施形態について、図10及び図11を参照して説明する。 Next, an eighth embodiment and a ninth embodiment of the present invention will be described with reference to FIGS.
なお、以下の説明において、上記実施形態において説明した同一の構成要素には同一の符号を付し、その説明は省略する。 In the following description, the same reference numerals are given to the same components described in the above embodiment, a description thereof will be omitted.

第8実施形態と第5実施形態との異なる点は、第5実施形態ではチャンネルチューブ11の周囲に樹脂層の管路補強材55を被覆したのに対し、第8実施形態の外付けチャンネル80では、図10に示すように、チャンネルチューブ11の周囲(最外周面)にこれを締め付けるように膜状体の管路補強材85を被覆した点である。 The point of difference between the eighth embodiment and the fifth embodiment, while the coated conduits reinforcement 55 of the resin layer around the channel tube 11 in the fifth embodiment, the external channel 80 of the eighth embodiment in, as shown in FIG. 10, a point obtained by coating the pipe reinforcement 85 of the film-like member to tighten it around the channel tube 11 (outermost surface). すなわち、本実施形態では、膜状体の管路補強材85が先端部と手元部とで補強材固定部(図示略)によってチャンネルチューブ11の周囲に固定されており、その他の部分ではチャンネルチューブ11に固定されておらず非接合状態で密着されている。 That is, in this embodiment, is fixed to the periphery of the channel tube 11 by the reinforcing member fixing unit (not shown) line reinforcement 85 of the membrane body is in the tip and proximal portion, the channel tube in the other portion It is contacted to a non-bonding state not fixed to 11. このため、本実施形態では、処置具2がチャンネルチューブ11を突き破っても、膜状体の管路補強材85が変形することにより処置具2が外部に突き抜けることを防ぐことができる。 Therefore, in the present embodiment, even when the treatment instrument 2 breaks through the channel tube 11, the treatment instrument 2 by line reinforcement 85 of the film-like body is deformed can be prevented from penetrating to the outside.
なお、膜状体の管路補強材85は、チャンネルチューブ11よりも柔軟に形成されていてもよい。 Incidentally, line reinforcement 85 of the membrane body may be flexible than the channel tube 11.

また、第9実施形態と第8実施形態との異なる点は、第8実施形態では、チャンネルチューブ11の軸方向に均一厚さの管路補強材85を被覆しているのに対し、第9実施形態の外付けチャンネル90では、図11に示すように、チャンネルチューブ11の軸方向に異なる2つの厚さを有する膜状体の管路補強材95を被覆している点である。 Moreover, the point of difference between the ninth embodiment and the eighth embodiment, in the eighth embodiment, while the axial direction of the channel tube 11 covers the pipe reinforcement 85 of uniform thickness, 9 in external channel 90 of the embodiment, as shown in FIG. 11, a point covering the film-like body of the pipe reinforcement 95 having an axial two different thickness of the channel tube 11. すなわち、本実施形態では、管路補強材95が、薄肉先端部95aと薄肉先端部95aよりも厚肉の主補強部95bとで構成されている。 That is, in this embodiment, the conduit reinforcement 95, and a main reinforcing portion 95b of the thicker than the thin tip 95a and the thin tip 95a. このため、薄肉先端部95aは、主補強部95bよりも柔軟性を有している。 Therefore, the thin tip 95a has flexibility than the main reinforcement portion 95b. なお、薄肉先端部95aは、湾曲部13bに併設されるチャンネルチューブ11の部分に被覆されることが好ましい。 Incidentally, the thin tip 95a is preferably coated on a portion of the channel tube 11 that is parallel in the curved portion 13b. また、管路補強材の柔軟性を変える手段として、上述した肉厚を変える以外に、樹脂の材質を変えることでも構わない。 Further, as means for varying the flexibility of the pipe reinforcement, other than changing the thickness described above, it may be by changing the material of the resin.

次に、本発明に係る第10実施形態及び第11実施形態について、図12及び図13を参照して説明する。 Next, the tenth embodiment and the eleventh embodiment according to the present invention will be described with reference to FIGS. 12 and 13.
なお、以下の説明において、上記実施形態において説明した同一の構成要素には同一の符号を付し、その説明は省略する。 In the following description, the same reference numerals are given to the same components described in the above embodiment, a description thereof will be omitted.

第10実施形態と第8実施形態との異なる点は、第8実施形態ではチャンネルチューブ11の外表面上に膜状体の管路補強材85を被覆したのに対し、第10実施形態の外付けチャンネル100では、図12に示すように、チャンネルチューブ111内に設けた筒状の空間に軟性の樹脂からなる管路補強材105を充填して被覆した点である。 The point of difference between the tenth embodiment and the eighth embodiment, while in the eighth embodiment was coated pipe reinforcement 85 of the film-like body on the outer surface of the channel tube 11, out of the tenth embodiment in marked channel 100, as shown in FIG. 12, in that coated by filling the pipe reinforcement 105 to the cylindrical space provided in the channel tube 111 made of soft resin. すなわち、本実施形態では、チャンネルチューブ111を内層111aと筒状空間部(中間層)111bと外層111cとの三層に分け、筒状空間部111b内にシリコン系接着剤、ゲル状物質、合成ゴム又はエラストマー等の軟性の管路補強材105を充填して内層111aを覆った状態としている。 That is, in this embodiment, a channel tube 111 inner 111a and the cylindrical space portion is divided into three layers (the intermediate layer) 111b and an outer layer 111c, a silicon-based adhesive in the tubular space portion 111b, a gel-like substance, synthetic is set to a state of covering the inner layer 111a is filled with a soft, line reinforcement 105, such as rubber or elastomer. これにより、処置具2がチャンネルチューブ111の内層111aを突き抜けても、筒状空間部111b内の管路補強材105及び外層111cに当たって突き抜けを防ぐことができる。 This makes it possible to the treatment instrument 2 is also penetrate the inner layer 111a of the channel tube 111, preventing the penetration against the pipe reinforcement 105 and an outer layer 111c in the tubular space portion 111b. また、管路補強材105が軟性材料であるので、この部分での柔軟性を確保することができる。 Further, since the pipe reinforcement 105 is a flexible material, it is possible to ensure flexibility at this portion.

また、第11実施形態と第8実施形態との異なる点は、第8実施形態では膜状体の管路補強材85を補強材固定部によってチャンネルチューブ11に固定しているのに対し、第11実施形態の外付けチャンネル110では、図13に示すように、樹脂製の粘着剤を塗布した保護テープ115aをチャンネルチューブ11の外表面に直接巻き付けて膜状体の管路補強材115をチャンネルチューブ11に被覆する点である。 Further, the eleventh embodiment differs from the eighth embodiment, while in the eighth embodiment is fixed to the channel tube 11 a pipe reinforcement 85 of the film-like member by the reinforcing member fixing unit, the in embodiment 11 of the external channel 110, as shown in FIG. 13, the pipe reinforcement 115 directly to the outer surface wound film-like body of the protective tape 115a and the channel tube 11 coated with resin adhesive channel is that covering the tube 11. なお、本実施形態では、保護テープ115aをチャンネルチューブ11に螺旋状に巻き付けることにより、保護テープ115aを密に巻き付けることができる。 In the present embodiment, by winding the protective tape 115a in the channel tube 11 in a spiral shape, it can be wound a protective tape 115a closely.

このように本実施形態では、保護テープ115aを巻き付けて膜状体の管路補強材115が形成されているので、特に湾曲により処置具に突き出しが心配な部分である湾曲部13b上に位置するチャンネルチューブ11の部分を選択的に被覆、保護することができる。 As described above, in this embodiment, since the protective tape 115a conduit reinforcement 115 of the film-like body by winding is formed, is located in the curved portion on the 13b protrudes is worried part to the treatment instrument, especially by bending selectively covering the portion of the channel tube 11 can be protected. また、湾曲部13bは内視鏡12の種類に応じて長さが異なるが、本実施形態では、保護テープ115aの巻き付けにより管路補強材115の長さを任意に変更できるため、より汎用性が高い。 Further, the curved portion 13b are different lengths depending on the type of the endoscope 12, in this embodiment, it is possible to arbitrarily change the length of the pipe reinforcement 115 by winding the protective tape 115a, more versatile It is high.

次に、本発明に係る第12実施形態について、図14から図16を参照して説明する。 Next, a twelfth embodiment of the present invention will be described with reference to FIGS. 14-16.
なお、以下の説明において、上記実施形態において説明した同一の構成要素には同一の符号を付し、その説明は省略する。 In the following description, the same reference numerals are given to the same components described in the above embodiment, a description thereof will be omitted.

第12実施形態と第1実施形態との異なる点は、第1実施形態ではチャンネルチューブ11に管路補強材15を被覆して孔の発生を防止しているのに対し、第12実施形態の外付けチャンネル120では、図14〜16に示すように、チャンネルチューブ121の内壁における孔の発生を検知する孔開き検知手段122を備えている点である。 The point of difference between the twelfth embodiment and the first embodiment, in the first embodiment while coating the pipe reinforcement 15 to the channel tube 11 to prevent the generation of holes, the twelfth embodiment in external channel 120, as shown in FIG. 14 to 16 is that it includes a perforated detecting means 122 for detecting the occurrence of holes in the inner wall of the channel tube 121.
本実施形態では、図14に示すように、チャンネルチューブ121が内壁を有する内層121aと筒状空間部(中間層、空気層)121bと外表面を有する外層121cとの三層に分かれている。 In the present embodiment, as shown in FIG. 14, the channel tube 121 is divided into three layers of an outer layer 121c having an inner layer 121a and the cylindrical space portion (the intermediate layer, air layer) 121b and an outer surface having an inner wall.

前記チャンネルチューブ121の基端部には、図15に示すように、チャンネル取付口金123が取り付けられており、前記筒状空間部121bは、チャンネル取付口金123内に形成された連通路123aに接続されている。 The proximal end portion of the channel tube 121, as shown in FIG. 15, and channel mounting pipe sleeve 123 is attached, the tubular space portion 121b is connected to a communication passage 123a formed in the channel mounting pipe sleeve 123 It is. 前記チャンネル取付口金123は、内層121a内側に差し込まれる第1のチャンネル受け部123bと外層121c内側に差し込まれる第2のチャンネル受け部123cとを備えている。 The channel mounting cap 123, and a second channel receiving unit 123c to be inserted inside the first channel receiving unit 123b and the outer layer 121c to be inserted into the inner layer 121a inside. 前記連通路123aは、チャンネル取付口金123の外周に設けられた連通口金124に接続されて外部に開口している。 The communication passage 123a is connected to the communicating pipe sleeve 124 provided on the outer periphery of the channel mounting pipe sleeve 123 are open to the outside. また、前記チャンネル取付口金123には、チャンネルチューブ121内に連通する処置具挿通路127が形成されている。 Further, the channel mount mouthpiece 123, biopsy channel 127 communicating in the channel tube 121 is formed.

前記連通口金124には、ポンプ125及び圧力検知装置126とが接続されており、これらにより連通口金124を介して連通路123a及び筒状空間部121bの内圧が一定になるように加圧減圧制御がなされている。 Wherein the communicating mouthpiece 124 is connected with a pump 125 and a pressure sensing device 126, the pressure vacuum control as the internal pressure of the communication passage 123a and the tubular space portion 121b is constant through the communicating pipe sleeve 124 by these It has been made. 前記圧力検知装置126は、連通路123a及び筒状空間部121bの内圧が一定値以上変化した際に、圧力異常として警告を警告灯又は警告音で与える機能を有している。 The pressure sensing device 126, when the internal pressure of the communication passage 123a and the tubular space portion 121b is changed more than a certain value, and has a function of giving a warning as the pressure abnormality warning lamp or warning sound.
通常時では、連通路123a及び筒状空間部121bの内圧は一定となり、加圧若しくは減圧は停止しているが、処置具2先端によってチャンネルチューブ11の内層121aに孔が発生した場合、内層121a内側と連通路123a及び筒状空間部121bとが連通状体となり、常に圧力調節が必要な状況となってポンプ125は加圧若しくは減圧を連続的に行う。 If in the normal internal pressure of the communication passage 123a and the tubular space portion 121b is constant, but pressure or reduced pressure is stopped, the hole is generated in an inner layer 121a of the channel tube 11 by the treatment instrument 2 tip, an inner layer 121a and the inner and the communication path 123a and the tubular space portion 121b becomes a communicating-like body, the pump 125 is continuously performing pressure or reduced pressure always a situation requiring pressure regulation. このとき、圧力検知装置126は、圧力異常が生じたと認識して上記警告を与える。 At this time, the pressure sensing device 126 provides the alert to recognize the pressure abnormality has occurred.
したがって、これらの筒状空間部121b、連通路123a、ポンプ125及び圧力検知装置126により孔開き検知手段122が構成されている。 Therefore, these tubular space portion 121b, the communication passage 123a, perforated detecting means 122 by the pump 125 and pressure sensing device 126 is configured.

このように、本実施形態では、チャンネルチューブ11の内壁における孔の発生を検知する孔開き検知手段122を備えているので、孔の開いた状態での処置具の使用を制限し、処置具の突き抜けを回避できると共に座屈が生じることを回避することができる。 Thus, in the present embodiment is provided with the perforated detecting means 122 for detecting the occurrence of holes in the inner wall of the channel tube 11, limits the use of the treatment instrument in the open state of the hole, the treatment instrument penetration can be avoided that the buckling occurs with the can be avoided.
なお、第12実施形態に、第1から11実施形態のいずれかを組み合わせて構成しても構わない。 Incidentally, the 12th embodiment may be formed by combining any of the first to eleventh embodiments.

なお、本発明の技術範囲は上記実施の形態に限定されるものではなく、本発明の趣旨を逸脱しない範囲において種々の変更を加えることが可能である。 The technical scope of the present invention is not limited to the above embodiment, it is possible to add various modifications without departing from the scope of the present invention.
また、本発明には、以下のものが含まれる。 Further, the present invention include the following.
〔付記項1〕 [Appendix claim 1]
前記管路補強材が、網状体であることを特徴とする請求項1又は2に記載の外付けチャンネル。 The conduit reinforcement, external channel according to claim 1 or 2, characterized in that a meshwork.
〔付記項2〕 [Additional Item 2]
前記網状体が、金属製であることを特徴とする付記項1に記載の外付けチャンネル。 External channel according to Additional Item 1, wherein the mesh-like body, characterized in that it is made of metal.
〔付記項3〕 [Appendix 3.]
前記網状体が、樹脂製であることを特徴とする付記項1に記載の外付けチャンネル。 External channel according to Additional Item 1, wherein the mesh-like body, characterized in that it is made of resin.
〔付記項4〕 [Appendix 4.]
前記網状体が、処置具挿通管路に一体的に成形されていることを特徴とする付記項1に記載の外付けチャンネル。 External channel according to Additional Item 1, wherein the mesh-like body, characterized in that it has been formed integrally with the instrument insertion conduit.
〔付記項5〕 [Appendix 5.]
前記網状体の密度が、30から90%までに設定されていることを特徴とする付記項1に記載の外付けチャンネル。 External channel according to Additional Item 1, the density of the mesh-like body, characterized in that it is set to from 30 to 90%.
〔付記項6〕 [Appendix 6.]
前記管路補強材が、樹脂製の膜状体であることを特徴とする請求項1又は2に記載の外付けチャンネル。 External channel according to claim 1 or 2, wherein the pipe reinforcement, characterized in that it is a resin-coated film.
〔付記項7〕 [Additional Item 7]
前記膜状体が、前記処置具挿通管路の最外周面に形成されていることを特徴とする付記項6に記載の外付けチャンネル。 External channel according to item 6, wherein the film-like member, characterized in that it is formed on the outermost peripheral surface of the treatment instrument insertion conduit.
〔付記項8〕 [Additional Item 8]
前記膜状体が、前記処置具挿通管路に非接合状態で密着されていることを特徴とする付記項7に記載の外付けチャンネル。 External channel according to item 7, wherein the film-like member, characterized in that it is in close contact with a non-bonded state in the instrument insertion conduit.
〔付記項9〕 [Additional Item 9]
前記管路補強材が、複数の棒状の補強材と螺旋状の補強材との複合体であることを特徴とする付記項1に記載の外付けチャンネル。 External channel according to Additional Item 1, wherein the pipe reinforcement, characterized in that it is a complex with a plurality of bar-like reinforcing material and the spiral reinforcement.
〔付記項10〕 [Additional Item 10]
前記管路補強材が、繊維膜であることを特徴とする付記項1に記載の外付けチャンネル。 External channel according to Additional Item 1, wherein the pipe reinforcement, which is a fiber membrane.
〔付記項11〕 [Additional Item 11]
前記管路補強材が、樹脂製のテープを巻回したものであることを特徴とする付記項1に記載の外付けチャンネル。 External channel according to Additional Item 1, wherein the pipe reinforcement, characterized in that is obtained by turning the resin tape winding.
〔付記項12〕 [Additional Item 12]
前記処置具挿通管路が、内層と中間層と外層との三層構造であり、前記中間層には樹脂層が形成されているを特徴とする付記項1に記載の外付けチャンネル。 The treatment instrument insertion duct is a three-layer structure of the inner layer and the intermediate layer and the outer layer, an external channel according to Additional Item 1 in the intermediate layer, wherein the resin layer is formed.
〔付記項13〕 [Additional Item 13]
前記処置具挿通管路が、内層と中間層と外層との三層構造であり、前記中間層には空気層が形成され、前記孔開き検知手段が、該空気層の圧力検知により前記内層の孔開きを検知することを特徴とする請求項3に記載の外付けチャンネル。 The treatment instrument insertion duct is a three-layer structure of the inner layer and the intermediate layer and the outer layer, the air layer is formed on the intermediate layer, the perforated detecting means, of the inner layer by a pressure sensing of the air layer external channel according to claim 3, characterized in that to detect the perforated.

本発明に係る第1実施形態の外付けチャンネル及び内視鏡装置を示す挿入部側の斜視図である。 Is a perspective view of the insertion portion side showing the external channel and the endoscope apparatus according to a first embodiment of the present invention. 本発明に係る第1実施形態の外付けチャンネルを示す要部斜視図である。 Is a main part perspective view showing an external channel according to a first embodiment of the present invention. 本発明に係る第1実施形態において、内視鏡を示す斜視図である。 In a first embodiment according to the present invention, it is a perspective view illustrating an endoscope. 本発明に係る第2実施形態の外付けチャンネルを示す要部斜視図である。 It is a main part perspective view showing an external channel according to a second embodiment of the present invention. 本発明に係る第3実施形態の外付けチャンネルを示す要部斜視図である。 It is a main part perspective view showing an external channel according to a third embodiment of the present invention. 本発明に係る第4実施形態の外付けチャンネルを示す要部斜視図である。 It is a main part perspective view showing an external channel according to a fourth embodiment of the present invention. 本発明に係る第5実施形態の外付けチャンネルを示す要部斜視図である。 It is a main part perspective view showing an external channel according to a fifth embodiment of the present invention. 本発明に係る第6実施形態の外付けチャンネルを示す要部斜視図である。 Is a main part perspective view showing an external channel according to a sixth embodiment of the present invention. 本発明に係る第7実施形態の外付けチャンネルを示す要部斜視図である。 The external channel of the seventh embodiment of the present invention is a main part perspective view showing. 本発明に係る第8実施形態の外付けチャンネルを示す要部断面図である。 It is a fragmentary cross-sectional view showing the external channel according to an eighth embodiment of the present invention. 本発明に係る第9実施形態の外付けチャンネルを示す要部斜視図である。 It is a partial perspective view showing the external channel of the ninth embodiment according to the present invention. 本発明に係る第10実施形態の外付けチャンネルを示す一部を破断した要部斜視図である。 It is a main part perspective view of a partially cutaway showing the external channel of the tenth embodiment according to the present invention. 本発明に係る第11実施形態の外付けチャンネルにおいて、保護テープの巻回状態を示した要部斜視図である。 In external channel of the eleventh embodiment according to the present invention, it is a main part perspective view showing a wound state of the protective tape. 本発明に係る第12実施形態の外付けチャンネルを示す一部を破断した要部斜視図である。 It is a main part perspective view of a partially cutaway showing the external channel of the twelfth embodiment according to the present invention. 本発明に係る第12実施形態の外付けチャンネルを示す基端側の片側断面図である。 A twelfth side cross-sectional view of the proximal showing the external channel embodiment according to the present invention. 本発明に係る第12実施形態の外付けチャンネルを示す基端側の斜視図である。 Is a perspective view of the proximal end side showing the external channel of the twelfth embodiment according to the present invention. 本発明に係る従来例の外付けチャンネルを示す要部斜視図である。 It is a partial perspective view showing the external channel of the conventional example according to the present invention.

符号の説明 DESCRIPTION OF SYMBOLS

2 処置具 10、20、30、40、50、60 外付けチャンネル 11、111、121 チャンネルチューブ(処置具挿通管路) 2 treatment tool 10, 20, 30, 40 external channel 11,111,121 channel tube (instrument insertion conduit)
12 内視鏡 13 挿入部 13b 湾曲部 14 固定部 15、25、35、55、65、75、85、95、105、115 管路補強材 35a 第1の補強部 35b 第2の補強部 70、80、90、100、110、120 外付けチャンネル 122 孔開き検知手段 12 the endoscope 13 insertion portion 13b bent portion 14 fixed portion 15,25,35,55,65,75,85,95,105,115 conduit stiffeners 35a first reinforcing portion 35b second reinforcing portion 70, 80,90,100,110,120 external channel 122 perforated detecting means

Claims (4)

  1. 内部に処置具を挿通可能な可撓性を有する処置具挿通管路と、 A therapeutic device insertion conduit having an insertion, flexible treatment instrument therein,
    該処置具挿通管路を内視鏡の挿入部に固定する固定部と、 A fixing portion for fixing the insertion portion of the endoscope the instrument insertion conduit,
    前記処置具挿通管路の周囲に被覆された管路補強材とを備えていることを特徴とする内視鏡用の外付けチャンネル。 External channel for an endoscope, characterized in that it comprises a conduit reinforcement coated around the instrument insertion conduit.
  2. 前記管路補強材が、前記処置具挿通管路の周囲のうち前記挿入部の湾曲操作な湾曲部に固定される部分に設けられる第1の補強部と、 The conduit reinforcement includes a first reinforcement part provided at a portion to be fixed to the bending operation of the bending portion of the insertion portion of the periphery of the treatment instrument insertion channel,
    前記処置具挿通管路の周囲のうち前記湾曲部以外の部分に固定される第2の補強部とを有し、 And a second reinforcing portion fixed to a portion other than the curved portion of the periphery of the treatment instrument insertion channel,
    前記第1の補強部が、前記第2の補強部よりも柔軟であることを特徴とする請求項1に記載の内視鏡用の外付けチャンネル。 It said first reinforcing portion, external channel for an endoscope according to claim 1, wherein the a second flexible than the reinforcing portion.
  3. 内部に処置具を挿通可能な可撓性を有する処置具挿通管路と、 A therapeutic device insertion conduit having an insertion, flexible treatment instrument therein,
    該処置具挿通管路を内視鏡の挿入部に固定する固定部と、 A fixing portion for fixing the insertion portion of the endoscope the instrument insertion conduit,
    前記処置具挿通管路の内壁における孔の発生を検知する孔開き検知手段とを備えていることを特徴とする内視鏡用の外付けチャンネル。 External channel for an endoscope, characterized in that it comprises a perforated detecting means for detecting the occurrence of holes in the inner wall of the instrument insertion conduit.
  4. 請求項1から3のいずれか一つに記載の内視鏡用の外付けチャンネルを備えていることを特徴とする内視鏡装置。 The endoscope apparatus characterized by comprising an external channel for an endoscope according to claim 1, any one of 3.
JP2003372354A 2003-10-31 2003-10-31 External channel for endoscope and endoscope device Withdrawn JP2005131212A (en)

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