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JP2009247362A - Structure of treatment instrument insertion part of endoscope - Google Patents

Structure of treatment instrument insertion part of endoscope Download PDF

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Publication number
JP2009247362A
JP2009247362A JP2008094699A JP2008094699A JP2009247362A JP 2009247362 A JP2009247362 A JP 2009247362A JP 2008094699 A JP2008094699 A JP 2008094699A JP 2008094699 A JP2008094699 A JP 2008094699A JP 2009247362 A JP2009247362 A JP 2009247362A
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treatment instrument
instrument insertion
base
cap
treatment
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JP5072687B2 (en
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Yoshinori Maruyama
義則 丸山
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Hoya Corp
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Hoya Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure of a treatment instrument insertion part of an endoscope without economical or sanitary demerits because a treatment instrument insertion cap is not loosened and because it is not necessary to divide the treatment instrument insertion cap into a plurality of parts. <P>SOLUTION: A treatment instrument insertion channel proximal end cap 4 is disposed on the rear side of a treatment instrument insertion cap-attaching hole 2 opened/formed in an operating part housing 1, and the treatment instrument insertion cap 7 inserted into the cap-attaching hole 2 from outside is screwed and connected with the proximal end cap 4. The insertion cap 7 is pressed and fixed on a stepped part 9 formed inside the cap-attaching hole 2 by a fixing nut 11 from outside. The treatment instrument insertion part of the endoscope has the above structure. In the structure, an unevenness part 13 is formed in a stepped part abutting surface 12 of the insertion cap 7 abutting to the stepped part 9 to bite the stepped part 9 when the insertion cap 7 is rotating in the direction around the axis. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

この発明は、内視鏡の処置具挿通チャンネルに処置具を挿入するための内視鏡の処置具挿入部の構造に関する。   The present invention relates to a structure of an endoscope treatment tool insertion portion for inserting a treatment tool into a treatment tool insertion channel of an endoscope.

図９は、従来の内視鏡の処置具挿入部の構造を示しており、処置具挿通チャンネル９１の基端に取り付けられた処置具挿通チャンネル基端口金９２が、プラスチック製の操作部ハウジング９３に開口形成された処置具挿入口金取付孔９４の奥側位置に配置され、処置具挿入口金取付孔９４に外側から差し込まれた処置具挿入口金９５と処置具挿通チャンネル基端口金９２とが螺合部９６で螺合連結されて、処置具挿入口金９５が、処置具挿入口金取付孔９４内に形成された段部９７に固定ナット９８で外方から押圧固定された構造を有している（例えば、特許文献１）。
特開２００６−２６２４８ FIG. 9 shows a structure of a treatment instrument insertion portion of a conventional endoscope, and a treatment instrument insertion channel proximal end base 92 attached to the proximal end of the treatment instrument insertion channel 91 is an operation portion housing 93 made of plastic. The treatment instrument insertion base 95 and the treatment instrument insertion channel base end base 92 inserted from the outside into the treatment instrument insertion base attachment hole 94 are screwed together. The treatment tool insertion base 95 is screwed and connected at the joint portion 96, and has a structure in which a fixing portion 98 is pressed and fixed to the stepped portion 97 formed in the treatment tool insertion base attachment hole 94 from the outside. (For example, patent document 1).
JP 2006-26248 A

上述のような内視鏡の処置具挿入部の構造においては、処置具挿入口金９５が、処置具挿入口金取付孔９４内に形成された段部９７に固定ナット９８で外方から押圧されることにより、操作部ハウジング９３に固定されている。   In the structure of the treatment instrument insertion portion of the endoscope as described above, the treatment instrument insertion base 95 is pressed from the outside by the fixing nut 98 to the stepped portion 97 formed in the treatment instrument insertion base attachment hole 94. Thus, the operation unit housing 93 is fixed.

したがって、処置具挿入口金９５に外側から大きな回転力が作用すると（例えば、処置具の操作部が処置具挿入口金９５に着脱されるような場合等）、処置具挿入口金９５が回転して固定ナット９８が緩み、処置具挿入口金９５がガタ付く状態になってしまう場合がある。   Accordingly, when a large rotational force acts on the treatment instrument insertion base 95 from the outside (for example, when the operation part of the treatment instrument is attached to or detached from the treatment instrument insertion base 95), the treatment instrument insertion base 95 is rotated and fixed. The nut 98 may be loosened, and the treatment instrument insertion base 95 may become loose.

そこで、例えば図１０に示されるように、処置具挿入口金取付孔９４と処置具挿入口金９５との嵌め合い部に角孔−角軸嵌合部９９を設ければ、処置具挿入口金取付孔９４内での処置具挿入口金９５の回転を規制することができる。しかし、そのように処置具挿入口金９５が軸線周り方向に回転できないようにしてしまうと、処置具挿通チャンネル基端口金９２に対して処置具挿入口金９５を螺合させることができなくなる。   Thus, for example, as shown in FIG. 10, if a square hole-square shaft fitting portion 99 is provided in the fitting portion between the treatment instrument insertion base attachment hole 94 and the treatment instrument insertion base 95, the treatment instrument insertion base attachment hole is provided. The rotation of the treatment instrument insertion base 95 within 94 can be restricted. However, if the treatment instrument insertion base 95 is prevented from rotating in the direction around the axis, the treatment instrument insertion base 95 cannot be screwed to the treatment instrument insertion channel base end base 92.

そのため、処置具挿入口金９５を二部品（９５Ａ，９５Ｂ）に分割して接続する必要が生じ、コスト面での不利益だけでなく、分割／接続部の隙間が汚液溜まりになる可能性も生じて、衛生上好ましくない。   Therefore, it is necessary to divide and connect the treatment instrument insertion base 95 into two parts (95A and 95B), which not only is disadvantageous in terms of cost, but also a possibility that the gap between the divided / connected portions becomes a sewage pool. This is undesirable in terms of hygiene.

本発明は、処置具挿入口金に緩みが発生せず、しかも、処置具挿入口金を複数部品に分割する必要がなくて、コスト的、衛生的なデメリットが発生しない内視鏡の処置具挿入部の構造を提供することを目的とする。   The present invention provides a treatment instrument insertion portion for an endoscope in which no looseness occurs in the treatment instrument insertion base, and it is not necessary to divide the treatment instrument insertion base into a plurality of parts, and no cost and hygiene disadvantages occur. The purpose is to provide a structure.

上記の目的を達成するため、本発明の内視鏡の処置具挿入部の構造は、処置具挿通チャンネルの基端に取り付けられた処置具挿通チャンネル基端口金が、操作部ハウジングに開口形成された処置具挿入口金取付孔の奥側位置に配置され、処置具挿入口金取付孔に外側から差し込まれた処置具挿入口金と処置具挿通チャンネル基端口金とが螺合連結されて、処置具挿入口金が、処置具挿入口金取付孔内に形成された段部に固定ナットで外方から押圧固定された構造を有する内視鏡の処置具挿入部の構造において、段部に当接する処置具挿入口金の段部当接面に、処置具挿入口金が軸線周り方向に回転しようとする際に段部に食い付く凹凸を形成したものである。   In order to achieve the above object, the treatment instrument insertion portion structure of the endoscope of the present invention has a treatment instrument insertion channel proximal end cap attached to the proximal end of the treatment instrument insertion channel, with an opening formed in the operation portion housing. The treatment instrument insertion base and the treatment instrument insertion channel base end screw are connected to each other by inserting the treatment instrument insertion base inserted into the treatment instrument insertion base attachment hole from the outside. In the structure of a treatment instrument insertion portion of an endoscope having a structure in which a base is pressed and fixed from the outside with a fixing nut to a step portion formed in a treatment tool insertion base attachment hole, a treatment tool is inserted that comes into contact with the step portion. On the step contact surface of the base, unevenness that bites into the step portion when the treatment instrument insertion base tries to rotate in the direction around the axis is formed.

なお、段部当接面に形成された凹凸が、処置具挿入口金の軸線周り方向に凹と凸が繰り返される状態に形成されていてもよく、段部当接面に形成された凹凸と噛み合う噛み合い凹凸が段部に形成されていてもよい。   In addition, the unevenness formed on the step contact surface may be formed in a state where the recess and the protrusion are repeated in the direction around the axis of the treatment instrument insertion base, and meshes with the unevenness formed on the step contact surface. Engaging irregularities may be formed in the stepped portion.

本発明によれば、段部に当接する処置具挿入口金の段部当接面に、処置具挿入口金が軸線周り方向に回転しようとする際に段部に食い付く凹凸を形成したことにより、処置具挿入口金に外側から大きな回転力が作用しても処置具挿入口金に緩みが発生せず、しかも、処置具挿入口金を複数部品に分割する必要がないので、コスト的、衛生的なデメリットが発生しない。   According to the present invention, on the step contact surface of the treatment instrument insertion cap that is in contact with the step portion, the unevenness that bites into the step portion when the treatment tool insertion cap is about to rotate in the direction around the axis is formed. Even if a large rotational force is applied to the treatment tool insertion base from the outside, the treatment tool insertion base does not loosen, and it is not necessary to divide the treatment tool insertion base into multiple parts. Does not occur.

処置具挿通チャンネルの基端に取り付けられた処置具挿通チャンネル基端口金が、操作部ハウジングに開口形成された処置具挿入口金取付孔の奥側位置に配置され、処置具挿入口金取付孔に外側から差し込まれた処置具挿入口金と処置具挿通チャンネル基端口金とが螺合連結されて、処置具挿入口金が、処置具挿入口金取付孔内に形成された段部に固定ナットで外方から押圧固定された構造を有する内視鏡の処置具挿入部の構造において、段部に当接する処置具挿入口金の段部当接面に、処置具挿入口金が軸線周り方向に回転しようとする際に段部に食い付く凹凸を形成する。   A treatment instrument insertion channel base end cap attached to the proximal end of the treatment instrument insertion channel is disposed at the back side of the treatment instrument insertion base attachment hole formed in the operation portion housing, and is outside the treatment instrument insertion base attachment hole. The treatment instrument insertion base inserted from the base and the treatment instrument insertion channel base end base are screwed together, and the treatment instrument insertion base is externally attached to the step formed in the treatment instrument insertion base attachment hole with a fixing nut. In the structure of the treatment instrument insertion portion of the endoscope having a fixed structure, when the treatment instrument insertion cap is about to rotate in the direction around the axis on the step contact surface of the treatment instrument insertion cap that contacts the step Concavities and convexities that bite into the step are formed.

以下、図面を参照して本発明の実施例を説明する。
図１は、内視鏡の操作部の下端部付近に設けられた処置具挿入部を示しており、操作部ハウジング１はプラスチックモールドにより形成されていて、処置具挿入口金取付孔２が、操作部ハウジング１に外側から内側に斜め下方に向けて形成されている。 Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 shows a treatment instrument insertion portion provided in the vicinity of the lower end of the operation portion of the endoscope. The operation portion housing 1 is formed of a plastic mold, and the treatment instrument insertion base mounting hole 2 is provided with an operation portion. The part housing 1 is formed obliquely downward from the outside to the inside.

３は、内視鏡の挿入部内に全長にわたって挿通配置された、例えば四フッ化エチレン樹脂チューブ等からなる可撓性の処置具挿通チャンネルであり、その基端部に取り付けられた処置具挿通チャンネル基端口金４が操作部ハウジング１内の処置具挿入口金取付孔２の奥側位置に配置されている。処置具挿通チャンネル基端口金４には、処置具挿通チャンネル３に対して二股に分かれた状態に、吸引チューブ５と処置具挿入口金７とが接続されている。   Reference numeral 3 denotes a flexible treatment instrument insertion channel made of, for example, a tetrafluoroethylene resin tube or the like, which is inserted and disposed throughout the insertion portion of the endoscope, and the treatment instrument insertion channel attached to the base end portion thereof The base end cap 4 is disposed at the back side position of the treatment instrument insertion base mounting hole 2 in the operation unit housing 1. A suction tube 5 and a treatment instrument insertion cap 7 are connected to the treatment instrument insertion channel base end cap 4 in a state of being divided into two branches with respect to the treatment instrument insertion channel 3.

処置具挿入口金７は、処置具挿入口金取付孔２内に外側から差し込まれた状態に配置されていて、その先端部分が処置具挿入口金取付孔２の奥側位置で処置具挿通チャンネル基端口金４と螺合連結され（螺合部８）、図示されていない処置具を通すために処置具挿入口金７に貫通形成された処置具通過孔７ａが処置具挿通チャンネル基端口金４内と連通している。   The treatment instrument insertion base 7 is disposed in a state of being inserted into the treatment instrument insertion base attachment hole 2 from the outside, and a distal end portion of the treatment instrument insertion base 7 is located at the back side of the treatment instrument insertion base attachment hole 2. A treatment instrument passage hole 7a that is threadedly connected to the gold 4 (threaded portion 8) and penetrates the treatment instrument insertion base 7 for passing a treatment instrument (not shown) is formed in the treatment instrument insertion channel base end base 4 Communicate.

処置具挿入口金取付孔２は中間部分で入口側が奥側より大きな径に形成されていて、その境界部は入口側に向かって段差面がある段部９になっている。また、処置具挿入口金７もそれに合わせた形状に形成されて、処置具挿入口金取付孔２の段部９に当接する段部当接面１２が処置具挿入口金７に形成されている。   The treatment instrument insertion base mounting hole 2 is formed at an intermediate portion with a larger diameter on the inlet side than on the rear side, and a boundary portion thereof is a step portion 9 having a step surface toward the inlet side. The treatment instrument insertion cap 7 is also formed in a shape corresponding to the treatment tool insertion cap 7, and a step contact surface 12 that contacts the step 9 of the treatment tool insertion cap attachment hole 2 is formed in the treatment tool insertion cap 7.

そして、処置具挿入口金取付孔２の口元部に螺合された固定ナット１１により、処置具挿入口金７の段部当接面１２が処置具挿入口金取付孔２内の段部９に外方から押圧固定され、それによって、処置具挿入口金７が操作部ハウジング１に固定された状態になっている。   Then, the step contact surface 12 of the treatment instrument insertion base 7 is outwardly exposed to the step 9 in the treatment instrument insertion base attachment hole 2 by a fixing nut 11 screwed into the base of the treatment instrument insertion base attachment hole 2. Thus, the treatment instrument insertion cap 7 is fixed to the operation portion housing 1.

なお、処置具挿入口金７を処置具挿通チャンネル基端口金４に螺合連結させる際には、二点鎖線で示されるように固定ナット１１が処置具挿入口金取付孔２の口元に取り付けられていない状態で、処置具挿入口金７を処置具挿通チャンネル基端口金４と螺合させるように締め込み、その作業が完了してから固定ナット１１を処置具挿入口金取付孔２の口元にきつく螺合させる。１９は、適宜の箇所に必要に応じて装着されたシール用のＯリングである。   When the treatment instrument insertion base 7 is screwed and connected to the treatment instrument insertion channel base end base 4, the fixing nut 11 is attached to the base of the treatment instrument insertion base attachment hole 2 as indicated by a two-dot chain line. In such a state, the treatment instrument insertion base 7 is tightened so as to be screwed with the treatment instrument insertion channel base end base 4, and after the operation is completed, the fixing nut 11 is tightened to the base of the treatment instrument insertion base attachment hole 2. Combine. Reference numeral 19 denotes an O-ring for sealing that is attached to appropriate places as necessary.

そのような処置具挿入口金７の段部当接面１２には、処置具挿入口金７が軸線周り方向に回転しようとする際に処置具挿入口金取付孔２内の段部９に食い付くように機能する凹凸１３が形成されている。   The step tool abutment surface 12 of such a treatment tool insertion base 7 bites into the step part 9 in the treatment tool insertion base attachment hole 2 when the treatment tool insertion base 7 is about to rotate around the axis. Concavities and convexities 13 are formed which function to the above.

図２と、図３は、処置具挿入口金７単体の側面半断面図と底面図であり、凹凸１３は、段部当接面１２の外縁寄りの領域の全周に、処置具挿入口金７の軸線周り方向に凹と凸が繰り返される状態に形成されている。   FIGS. 2 and 3 are a side half sectional view and a bottom view of the treatment instrument insertion base 7 alone, and the unevenness 13 is formed on the entire circumference of the region near the outer edge of the step contact surface 12. It is formed in a state where the concave and convex are repeated in the direction around the axis.

なお、その凹凸１３は、図４に示されるように側方から見てＵ状の断面形状であってもよく、図５に示されるように矩形状の断面形状であってもよい。或いは、図６に示されるようにＶ状にすると段部９によく食い付き易くなり、図７に示されるように、固定ナット１１の緩み方向に尖ったＶ状であってもよい。   The unevenness 13 may have a U-shaped cross-sectional shape as viewed from the side as shown in FIG. 4 or a rectangular cross-sectional shape as shown in FIG. Alternatively, as shown in FIG. 6, if the shape is V-shaped, the stepped portion 9 is easily bitten, and as shown in FIG. 7, the shape of the fixing nut 11 may be sharpened in the loosening direction.

このように構成された実施例の内視鏡の処置具挿入部の構造によれば、処置具挿入口金７に外側から大きな回転力が作用したような場合であっても、処置具挿入口金７の段部当接面１２に形成された凹凸１３が処置具挿入口金取付孔２内の段部９に食い付いて処置具挿入口金７が回転しないので、固定ナット１１が緩まず、したがって処置具挿入口金７に緩みやガタ付きが発生しない。また、処置具挿入口金７を複数部品に分割する必要がないので、コスト的、衛生的なデメリットが発生しない。   According to the structure of the treatment instrument insertion portion of the endoscope of the embodiment thus configured, even when a large rotational force is applied to the treatment instrument insertion base 7 from the outside, the treatment instrument insertion base 7 Since the unevenness 13 formed on the step contact surface 12 of the stepped portion bites on the step 9 in the treatment tool insertion base mounting hole 2 and the treatment tool insertion base 7 does not rotate, the fixing nut 11 does not loosen, and therefore the treatment tool. The insertion cap 7 does not loosen or play. Further, since it is not necessary to divide the treatment instrument insertion base 7 into a plurality of parts, there is no cost and sanitary demerit.

図８は、本発明の第２の実施例の内視鏡の処置具挿入部の構造を示しており、処置具挿入口金取付孔２の段部９に、段部当接面１２に形成された凹凸１３と噛み合う噛み合い凹凸１０を形成したものである。噛み合い凹凸１０は、段部９の全周にわたって、段部当接面１２の凹凸１３が当接する部分に形成されている。   FIG. 8 shows the structure of the treatment instrument insertion portion of the endoscope according to the second embodiment of the present invention, which is formed on the step contact surface 12 on the step 9 of the treatment instrument insertion base mounting hole 2. The meshing unevenness 10 that meshes with the unevenness 13 is formed. The meshing unevenness 10 is formed in the portion where the unevenness 13 of the stepped portion contact surface 12 contacts the entire circumference of the stepped portion 9.

その他の構成は前述の第１の実施例と同じであり、第１の実施例よりさらに処置具挿入口金７が緩み難くなる作用効果を有する。なお、段部９の噛み合い凹凸１０は段部当接面１２の凹凸１３と同形状でもよいが、相違する形状であっても差し支えない。   The other configuration is the same as that of the first embodiment described above, and has the effect of making the treatment instrument insertion base 7 more difficult to loosen than the first embodiment. The meshing unevenness 10 of the stepped portion 9 may be the same shape as the unevenness 13 of the stepped portion contact surface 12, but may be a different shape.

本発明の第１の実施例の内視鏡の処置具挿入部の側面断面図である。It is side surface sectional drawing of the treatment tool insertion part of the endoscope of 1st Example of this invention. 本発明の第１の実施例の内視鏡の処置具挿入部の処置具挿入口金の単体の側面半断面図である。It is side surface half sectional drawing of the single body of the treatment tool insertion cap of the treatment tool insertion part of the endoscope of 1st Example of this invention. 本発明の第１の実施例の内視鏡の処置具挿入部の処置具挿入口金の単体の底面図である。It is a bottom view of the single treatment tool insertion cap of the treatment tool insertion portion of the endoscope according to the first embodiment of the present invention. 本発明の第１の実施例の処置具挿入口金の段部当接面に形成された凹凸部分の側面図である。It is a side view of the uneven | corrugated | grooved part formed in the step part contact surface of the treatment tool insertion base of the 1st Example of this invention. 本発明の第１の実施例の処置具挿入口金の段部当接面に形成された凹凸部分の第１の変形例の側面図である。It is a side view of the 1st modification of the uneven | corrugated | grooved part formed in the step part contact surface of the treatment tool insertion base of 1st Example of this invention. 本発明の第１の実施例の処置具挿入口金の段部当接面に形成された凹凸部分の第２の変形例の側面図である。It is a side view of the 2nd modification of the uneven | corrugated | grooved part formed in the step contact surface of the treatment tool insertion cap of the 1st Example of this invention. 本発明の第１の実施例の処置具挿入口金の段部当接面に形成された凹凸部分の第３の変形例の側面図である。It is a side view of the 3rd modification of the uneven | corrugated | grooved part formed in the step part contact surface of the treatment tool insertion base of 1st Example of this invention. 本発明の第２の実施例の内視鏡の処置具挿入部の側面断面図である。It is side surface sectional drawing of the treatment tool insertion part of the endoscope of 2nd Example of this invention. 内視鏡の処置具挿入部の第１の従来例の側面断面図である。It is side surface sectional drawing of the 1st prior art example of the treatment tool insertion part of an endoscope. 内視鏡の処置具挿入部の第２の従来例の側面断面図である。It is side surface sectional drawing of the 2nd prior art example of the treatment tool insertion part of an endoscope.

符号の説明Explanation of symbols

１ 操作部ハウジング
２ 処置具挿入口金取付孔
３ 処置具挿通チャンネル
４ 処置具挿通チャンネル基端口金
７ 処置具挿入口金
８ 螺合部
９ 段部
１０ 噛み合い凹凸
１１ 固定ナット
１２ 段部当接面
１３ 凹凸 DESCRIPTION OF SYMBOLS 1 Operation part housing 2 Treatment tool insertion base attachment hole 3 Treatment tool insertion channel 4 Treatment tool insertion channel base end base 7 Treatment tool insertion base 8 Screwing part 9 Step part 10 Engagement unevenness 11 Fixing nut 12 Step part contact surface 13 Asperity

Claims (3)

処置具挿通チャンネルの基端に取り付けられた処置具挿通チャンネル基端口金が、操作部ハウジングに開口形成された処置具挿入口金取付孔の奥側位置に配置され、
上記処置具挿入口金取付孔に外側から差し込まれた処置具挿入口金と上記処置具挿通チャンネル基端口金とが螺合連結されて、上記処置具挿入口金が、上記処置具挿入口金取付孔内に形成された段部に固定ナットで外方から押圧固定された構造を有する内視鏡の処置具挿入部の構造において、
上記段部に当接する上記処置具挿入口金の段部当接面に、上記処置具挿入口金が軸線周り方向に回転しようとする際に上記段部に食い付く凹凸を形成したことを特徴とする内視鏡の処置具挿入部の構造。 The treatment instrument insertion channel base end cap attached to the proximal end of the treatment instrument insertion channel is disposed at the back side position of the treatment instrument insertion base attachment hole formed in the operation portion housing,
The treatment instrument insertion base inserted from the outside into the treatment instrument insertion base attachment hole and the treatment instrument insertion channel base end base are screwed together, and the treatment instrument insertion base is inserted into the treatment instrument insertion base attachment hole. In the structure of the treatment instrument insertion portion of the endoscope having a structure in which the formed step portion is pressed and fixed from the outside with a fixing nut,
An unevenness that bites into the step portion when the treatment tool insertion base is about to rotate in the direction around the axis is formed on the step portion contact surface of the treatment tool insertion base that contacts the step portion. Structure of the treatment instrument insertion part of the endoscope. 上記段部当接面に形成された凹凸が、上記処置具挿入口金の軸線周り方向に凹と凸が繰り返される状態に形成されている請求項１記載の内視鏡の処置具挿入部の構造。   The structure of the treatment instrument insertion portion of the endoscope according to claim 1, wherein the unevenness formed on the stepped portion contact surface is formed in a state in which a depression and a projection are repeated in a direction around the axis of the treatment instrument insertion base. . 上記段部当接面に形成された凹凸と噛み合う噛み合い凹凸が上記段部に形成されている請求項１又は２記載の内視鏡の処置具挿入部の構造。   The structure of the treatment instrument insertion portion of the endoscope according to claim 1 or 2, wherein a meshing unevenness that meshes with the unevenness formed on the stepped portion contact surface is formed on the stepped portion.
JP2008094699A 2008-04-01 2008-04-01 Structure of the treatment instrument insertion part of the endoscope Expired - Fee Related JP5072687B2 (en)

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JP2000033069A (en) * 1998-07-17 2000-02-02 Asahi Optical Co Ltd Piping branch part of endoscope
JP2000037344A (en) * 1998-07-21 2000-02-08 Asahi Optical Co Ltd Piping branch part of endoscope
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JP2003116772A (en) * 2001-10-18 2003-04-22 Olympus Optical Co Ltd Endoscope instrument and hood member for endoscope
JP2006026248A (en) * 2004-07-21 2006-02-02 Pentax Corp Pipe joint part of flexible endoscope
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Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4941543Y1 (en) * 1969-07-04 1974-11-14
JPS6282003U (en) * 1985-11-08 1987-05-26
JPS63161932A (en) * 1986-12-25 1988-07-05 旭光学工業株式会社 Method for assembling forcept insert port part of endoscope
JP3380045B2 (en) * 1994-07-06 2003-02-24 ペンタックス株式会社 Connection structure of fluid line of endoscope
JPH0819514A (en) * 1994-07-06 1996-01-23 Asahi Optical Co Ltd Connecting structure for forceps channel of endoscope
JPH08238211A (en) * 1995-03-07 1996-09-17 Asahi Optical Co Ltd Endoscope
JP3938624B2 (en) * 1997-12-18 2007-06-27 オリンパス株式会社 Endoscope and endoscope hardness adjustment device
JP2000033068A (en) * 1998-07-17 2000-02-02 Asahi Optical Co Ltd Treatment implement insertion part of endoscope
JP2000033069A (en) * 1998-07-17 2000-02-02 Asahi Optical Co Ltd Piping branch part of endoscope
JP2000037344A (en) * 1998-07-21 2000-02-08 Asahi Optical Co Ltd Piping branch part of endoscope
JP2000055257A (en) * 1998-08-04 2000-02-22 Sanei Shigyo Kk Joint method for paper tube
JP2000170735A (en) * 1998-12-04 2000-06-20 Hitachi Ltd Screw fastening structure and its method
JP2001286438A (en) * 2000-04-10 2001-10-16 Olympus Optical Co Ltd Endoscope guide tube
JP2003116772A (en) * 2001-10-18 2003-04-22 Olympus Optical Co Ltd Endoscope instrument and hood member for endoscope
JP2006026248A (en) * 2004-07-21 2006-02-02 Pentax Corp Pipe joint part of flexible endoscope
JP2007130197A (en) * 2005-11-10 2007-05-31 Pentax Corp Structure for pipe joint of endoscope
JP2008000303A (en) * 2006-06-22 2008-01-10 Pentax Corp Method for temporarily fixing components of endoscope to each other

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