JP5675332B2 - Attachment for endoscope and endoscope apparatus - Google Patents

Attachment for endoscope and endoscope apparatus Download PDF

Info

Publication number
JP5675332B2
JP5675332B2 JP2010290803A JP2010290803A JP5675332B2 JP 5675332 B2 JP5675332 B2 JP 5675332B2 JP 2010290803 A JP2010290803 A JP 2010290803A JP 2010290803 A JP2010290803 A JP 2010290803A JP 5675332 B2 JP5675332 B2 JP 5675332B2
Authority
JP
Japan
Prior art keywords
endoscope
expansion
attachment
insertion portion
deformation amount
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2010290803A
Other languages
Japanese (ja)
Other versions
JP2012137666A5 (en
JP2012137666A (en
Inventor
小林　英一
英一 小林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Olympus Corp
Original Assignee
Olympus Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Olympus Corp filed Critical Olympus Corp
Priority to JP2010290803A priority Critical patent/JP5675332B2/en
Publication of JP2012137666A publication Critical patent/JP2012137666A/en
Publication of JP2012137666A5 publication Critical patent/JP2012137666A5/ja
Application granted granted Critical
Publication of JP5675332B2 publication Critical patent/JP5675332B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Instruments For Viewing The Inside Of Hollow Bodies (AREA)
  • Endoscopes (AREA)

Description

本発明は、内視鏡装置の内視鏡挿入部に装着される内視鏡用アタッチメントおよび該アタッチメントを適用する内視鏡装置に関する。   The present invention relates to an endoscope attachment mounted on an endoscope insertion portion of an endoscope apparatus, and an endoscope apparatus to which the attachment is applied.

従来から被検体の内部を観察あるいは測定するために、細長で先端にＣＣＤなどの観察手段が設けられた挿入部を備えた内視鏡が利用されているが、観察あるいは測定時、該内視鏡の挿入部の観察部分を保持する部位を被検体内部の中央に保持する構造に関して各種の提案がなされている。   Conventionally, in order to observe or measure the inside of a subject, an endoscope having an elongated insertion portion provided with an observation means such as a CCD at the tip is used. Various proposals have been made regarding a structure for holding a portion for holding the observation portion of the insertion portion of the mirror at the center inside the subject.

例えば、特許文献１に開示された内視鏡用センタリングデバイスは、内視鏡挿入部に装着され、被検体内部の観察を正確に行うためのセンタリングデバイスであり、本センタリングデバイス７Ｙは、図１８の従来の内視鏡構成図に示すように内視鏡装置１Ｙの内視鏡挿入部２Ｙ、または、該挿入部のガイドチューブ（図示せず）に装着可能とする。   For example, an endoscope centering device disclosed in Patent Document 1 is a centering device that is attached to an endoscope insertion portion and accurately observes the inside of a subject. This centering device 7Y is shown in FIG. As shown in the conventional endoscope configuration diagram, it can be attached to the endoscope insertion portion 2Y of the endoscope apparatus 1Y or a guide tube (not shown) of the insertion portion.

上記センタリングデバイス７Ｙは、デバイス本体１０Ｙと、先端側凸部１１Ｙと、板状部１５Ｙを備えている。該板状部１５Ｙは、デバイス本体１０Ｙの外方に突出して配されるほぼ半円状の板部からなる。該デバイス７Ｙが装着された内視鏡挿入部２Ｙの先端２Ｙａは、板状部１５Ｙによって上記被検体内部の径方向中心に保持され、上記被検体内部の観察をより正確に行うことができる。   The centering device 7Y includes a device main body 10Y, a tip-side convex portion 11Y, and a plate-like portion 15Y. The plate-like portion 15Y is composed of a substantially semicircular plate portion that protrudes outward from the device body 10Y. The distal end 2Ya of the endoscope insertion portion 2Y to which the device 7Y is mounted is held at the center in the radial direction inside the subject by the plate-like portion 15Y, and the inside of the subject can be observed more accurately.

また、特許文献２に開示された内視鏡用測定アタッチメントは、内視鏡挿入部に装着され、被検体内部に挿入された状態の内視鏡による該被検体の内部の測定を正確に行うためのものである。図１９の従来の内視鏡測定アタッチメントまわりの構成図に示すように上記内視鏡用測定アタッチメント３０Ｚは、本体ブロック３１Ｚと、本体ブロック３１Ｚに設けられた当接ブロック３２Ｚと、先端部が本体ブロック３１Ｚに固定され、被検体ＳＺの内部に挿入される細長の挿入部３３Ｚと、挿入部３３Ｚの基端側に設けられた把持部（図示せず）とを備えている。本体ブロック３１Ｚには内視鏡挿入部２Ｚの端部に配される測定手段を備えた先端部３Ｚが固着されている。   In addition, the endoscope measurement attachment disclosed in Patent Document 2 is attached to an endoscope insertion portion, and accurately measures the inside of the subject with the endoscope inserted into the subject. Is for. As shown in the configuration diagram around the conventional endoscope measurement attachment in FIG. 19, the endoscope measurement attachment 30Z includes a main body block 31Z, an abutment block 32Z provided on the main body block 31Z, and a distal end portion of the main body of the measurement attachment 30Z. An elongated insertion portion 33Z that is fixed to the block 31Z and is inserted into the subject SZ, and a grip portion (not shown) provided on the proximal end side of the insertion portion 33Z are provided. A distal end portion 3Z having a measuring means disposed at an end portion of the endoscope insertion portion 2Z is fixed to the main body block 31Z.

挿入部３３Ｚは、第一の内視鏡２Ｚに沿って保持されるガイドチューブ１０Ｚを挿通している。ガイドチューブ１０Ｚのガイドチューブ挿入部１１Ｚ上に固定手段１５Ｚが配されいる。固定手段１５Ｚは、ガイドチューブ挿入部１１Ｚの外周面に軸方向に延設されるとともに、周方向に複数配設された板バネ１６Ｚと、ガイドチューブ挿入部１１Ｚの基端側に設けられ、板バネ１６Ｚの湾曲操作を行う切替操作部（図示せず）と、上記切替操作部による操作を板バネ１６Ｚに伝達させる牽引ワイヤ１８Ｚとからなる。   The insertion part 33Z is inserted through the guide tube 10Z that is held along the first endoscope 2Z. The fixing means 15Z is arranged on the guide tube insertion part 11Z of the guide tube 10Z. The fixing means 15Z extends in the axial direction on the outer peripheral surface of the guide tube insertion portion 11Z, and is provided on the base end side of the plurality of leaf springs 16Z arranged in the circumferential direction and the guide tube insertion portion 11Z. A switching operation part (not shown) for performing a bending operation of the spring 16Z and a pulling wire 18Z for transmitting the operation by the switching operation part to the leaf spring 16Z.

被検体ＳＺの内部の幅を測定する場合、内視鏡挿入部２Ｚと測定アタッチメント３０Ｚが装着されたガイドチューブ１０Ｚとを被検体Ｓの内部に隙間を挿通させて挿入する。該挿入状態で上記切替操作部の操作により牽引ワイヤ１８Ｚを介して固定手段１５Ｚの端部を移動させ、図１９に示すように板バネ部１６Ｚを変形させて外方側に膨らませ、被検体ＳＺの内壁に当接させた状態にする。この当接状態ではガイドチューブ挿入部１１Ｚが上記内壁の中央部位置に保持されるので先端部３Ｚに備えられた上記測定手段による測定を精度よく行うことができる。   When measuring the internal width of the subject SZ, the endoscope insertion portion 2Z and the guide tube 10Z to which the measurement attachment 30Z is attached are inserted into the subject S through a gap. In the inserted state, the end of the fixing means 15Z is moved via the pulling wire 18Z by the operation of the switching operation portion, and the leaf spring portion 16Z is deformed and expanded outward as shown in FIG. It is made to contact | abut to the inner wall. In this abutting state, the guide tube insertion portion 11Z is held at the center position of the inner wall, so that the measurement by the measuring means provided at the distal end portion 3Z can be accurately performed.

さて、送電線鉄塔構造として鋼管支柱を用いるものがある。この構造では鋼管支柱の間がトラス構造の複数本の補強用鋼管（以下、鋼管と記載する）５１で連結されている。上記鋼管５１は、図２０の鋼管連結部まわりの斜視図に示すように連結板５２を介して溶接部５２ａにて上記鋼管支柱に結合されている。鋼管５１の連結板５２側の端部には蓋部材５３が溶接にて固着されているが、鋼管５１の内周面に対して隙間５３ａが設けられており、鋼管５１の内には塵埃等が堆積し、鋼管内面を腐食させる可能性がある。   Now, there is one using a steel pipe support as a transmission line tower structure. In this structure, a plurality of reinforcing steel pipes (hereinafter referred to as steel pipes) 51 having a truss structure are connected between the steel pipe columns. The steel pipe 51 is coupled to the steel pipe strut by a welded part 52a via a connecting plate 52 as shown in a perspective view around the steel pipe connecting part in FIG. A lid member 53 is fixed to the end of the steel pipe 51 on the connecting plate 52 side by welding, but a gap 53a is provided on the inner peripheral surface of the steel pipe 51, and dust or the like is present in the steel pipe 51. May accumulate and corrode the inner surface of the steel pipe.

そこで、保守作業として所定の期間毎に内視鏡を用いて上記鋼管内面を観察する必要がある。蓋部材５３には中央寄りに内視鏡挿入用として幅ｂの縦長開口部５３ｂが設けられる。但し、幅ｂは、野鳥等が入れないような狭い幅とする。上記内視鏡により鋼管内部の観察を行う場合、内視鏡挿入部を蓋部材５３の開口部５３ｂから挿入する必要がある。   Therefore, it is necessary to observe the inner surface of the steel pipe by using an endoscope every predetermined period as maintenance work. The lid member 53 is provided with a vertically long opening 53b having a width b near the center for insertion of an endoscope. However, the width b is set to a narrow width that no wild bird or the like can enter. When observing the inside of the steel pipe with the endoscope, it is necessary to insert the endoscope insertion portion from the opening 53 b of the lid member 53.

特開２００６−２２７１２６号公報JP 2006-227126 A 特開２００９−２２９６８８号公報JP 2009-229688 A

ところが上述した送電線鉄塔の鋼管５１の内面を内視鏡により観察するために特許文献１に開示されたような内視鏡用センタリングデバイス７Ｙを備えた内視鏡装置１Ｙを用いるとすると、鋼管５１に設けられた狭い開口部５３ｂから該センタリングデバイス７Ｙを挿入することができず、観察を行うことができない。   However, when the endoscope apparatus 1Y provided with the centering device 7Y for endoscope as disclosed in Patent Document 1 is used for observing the inner surface of the steel pipe 51 of the transmission line tower described above with an endoscope, the steel pipe is used. The centering device 7Y cannot be inserted from the narrow opening 53b provided in 51, and observation cannot be performed.

また、特許文献２に開示された内視鏡用測定アタッチメント３０Ｚを適用する内視鏡挿入部２Ｚを用いれば、該挿入部２Ｚを上述した狭い開口部５３ｂに挿通させた後、上記アタッチメント３０Ｚの板バネ部１６Ｚを鋼管５１の内周に当接するまで膨らませることで挿入部２Ｚの先端部３Ｚを鋼管５１の内周中央部に保持して観察することができる。しかしながら、上述のように板バネ部１６Ｚを膨らませるには上記挿入状態で上記切替操作部の操作により牽引ワイヤ１８Ｚを介して鋼管５１内にある固定手段１５Ｚの端部を所定位置まで移動させる必要があり、微妙な操作が不可欠であり、熟練を要するといった問題があった。   Moreover, if the endoscope insertion part 2Z to which the endoscope measurement attachment 30Z disclosed in Patent Document 2 is applied, the insertion part 2Z is inserted through the narrow opening 53b described above, and then the attachment 30Z By inflating the leaf spring portion 16Z until it abuts against the inner periphery of the steel pipe 51, the distal end portion 3Z of the insertion portion 2Z can be held and observed at the central portion of the inner periphery of the steel tube 51. However, in order to inflate the leaf spring portion 16Z as described above, it is necessary to move the end of the fixing means 15Z in the steel pipe 51 to a predetermined position via the pulling wire 18Z by operating the switching operation portion in the inserted state. There is a problem that delicate operation is indispensable and skill is required.

本発明は、上述の問題点を解決するためになされたものであり、鋼管等の被検体内部を内視鏡により観察、または、測定するに際して、内視鏡挿入部を狭い挿入隙間を挿通させることが可能であって、かつ、該挿入状態にて簡単な操作で上記挿入部先端を被検体内部中央に保持することが可能であり、構造も簡単な内視鏡用アタッチメント、および、該アタッチメントを適用する内視鏡装置を提供することを目的とする。   The present invention has been made to solve the above-described problems, and when observing or measuring the inside of a subject such as a steel tube with an endoscope, the endoscope insertion portion is inserted through a narrow insertion gap. An attachment for an endoscope that can be held in the center of the subject by a simple operation in the inserted state and has a simple structure, and the attachment An object of the present invention is to provide an endoscope apparatus to which the above is applied.

上記課題を解決するために本発明の内視鏡用アタッチメントは、内視鏡挿入部に装着されて、該内視鏡挿入部を被検体内部に保持するための内視鏡用アタッチメントであって、上記内視鏡挿入部の外周に摺動可能に挿入され、非圧縮状態では上記内視鏡挿入部の軸方向に沿って延在しており、長手方向の押圧によって外方に向けて弾性変形可能な複数の拡張部を備えた拡張部材と、上記内視鏡挿入部の先端側に装着され、上記拡張部材の先端と当接可能な抜け止め部材と、上記拡張部材の内周部に長手方向にスライド可能に挿入され、上記拡張部の変形量を規制する変形量規制部材と、上記内視鏡挿入部の外周にスライド可能に挿入され、上記拡張部材の端部に当接し、長手方向に押圧する押し込み部材と、を具備し、上記変形量規制部材は、上記拡張部材の内周部に入れ替えが可能である。 In order to solve the above problems, an endoscope attachment of the present invention is an endoscope attachment that is attached to an endoscope insertion portion and holds the endoscope insertion portion inside a subject. The endoscope insertion portion is slidably inserted into the outer periphery of the endoscope insertion portion, extends in the axial direction of the endoscope insertion portion in an uncompressed state, and is elastically outward by pressing in the longitudinal direction. An expansion member having a plurality of deformable expansion portions, a retaining member attached to the distal end side of the endoscope insertion portion and capable of coming into contact with the distal end of the expansion member, and an inner peripheral portion of the expansion member A deformation amount restricting member that is slidably inserted in the longitudinal direction and restricts the deformation amount of the expansion portion, and is slidably inserted on the outer periphery of the endoscope insertion portion, contacts the end of the expansion member, and is comprising a push member for pressing direction, and the deformation amount regulating member It is possible to interchange the inner peripheral portion of the extension member.

本発明によれば検体内部を内視鏡により観察、または、測定する際に内視鏡挿入部を狭い挿入隙間を挿通させることが可能であって、かつ、該挿入状態にて簡単な操作で上記挿入部先端を被検体内部に保持することが可能であり、構造も簡単な内視鏡用アタッチメントおよび該内視鏡用アタッチメントを適用する内視鏡装置を提供することができる。   According to the present invention, when observing or measuring the inside of a specimen with an endoscope, it is possible to insert a narrow insertion gap through the endoscope insertion portion, and with a simple operation in the insertion state. It is possible to provide an endoscope attachment that can hold the distal end of the insertion portion inside a subject and that has a simple structure, and an endoscope apparatus to which the endoscope attachment is applied.

本発明の一実施形態である内視鏡用アタッチメントを適用する内視鏡装置全体の構成を示す斜視図The perspective view which shows the structure of the whole endoscope apparatus to which the attachment for endoscopes which is one Embodiment of this invention is applied. 図１の内視鏡装置において、上記内視鏡用アタッチメントを取り外した状態を示す内視鏡装置の斜視図The perspective view of the endoscope apparatus which shows the state which removed the said attachment for endoscopes in the endoscope apparatus of FIG. 図１の内視鏡装置における上記内視鏡用アタッチメントの斜視図The perspective view of the said attachment for endoscopes in the endoscope apparatus of FIG. 図３の内視鏡用アタッチメントを構成する拡張部材と抜け止め部材の斜視図であって、拡張部材の拡張部が長手方向に延在した状態（膨らんでいない状態）を示す。FIG. 4 is a perspective view of an expansion member and a retaining member constituting the endoscope attachment of FIG. 3, showing a state where the expansion portion of the expansion member extends in the longitudinal direction (a state where the expansion member is not inflated). 図４の拡張部材の拡張部が外方に向けて膨らんだ状態を示す斜視図The perspective view which shows the state which the expansion part of the expansion member of FIG. 4 expanded outward 図３の内視鏡用アタッチメントの長手方向断面図であって、拡張部が延在している状態を示す。FIG. 4 is a longitudinal cross-sectional view of the endoscope attachment of FIG. 3, showing a state where an extension portion extends. 図６のＡ−Ａ断面図AA sectional view of FIG. 図６のＢ−Ｂ断面図であって、図８（Ａ）はクリップ部材がロック状態にあるときを示し、図８（Ｂ）はクリップ部材がロック解放状態にあるときを示す。FIGS. 8A and 8B are cross-sectional views taken along the line B-B in FIG. 6, and FIG. 8A shows the clip member in a locked state, and FIG. 8B shows the clip member in a lock released state. 図３の内視鏡用アタッチメントの長手方向断面図であって、拡張部が外方に膨らんだ状態を示す。FIG. 4 is a longitudinal cross-sectional view of the endoscope attachment of FIG. 3, showing a state in which an extension portion has expanded outward. 図９のＣ−Ｃ断面図CC sectional view of FIG. 図３の内視鏡用アタッチメントの先端にて抜け止め部材の抜け止めリングを取り外すときの状態を示す断面図Sectional drawing which shows a state when removing the retaining ring of a retaining member at the front-end | tip of the attachment for endoscopes of FIG. 図３の内視鏡用アタッチメント先端の抜け止め部材における抜け止めリング保持具の断面図Sectional drawing of the retaining ring holder in the retaining member of the endoscope attachment front-end | tip of FIG. 図３の内視鏡用アタッチメントを鋼管内に挿入する過程を示す状態図であって、図１３（Ａ）は、挿入直前の状態を示し、図１３（Ｂ）は、挿入中の状態を示し、図１３（Ｃ）は、挿入後、拡張部を広げた状態を示す。FIG. 13A is a state diagram showing a process of inserting the endoscope attachment of FIG. 3 into a steel pipe, FIG. 13A shows a state immediately before insertion, and FIG. 13B shows a state during insertion. FIG. 13C shows a state in which the extended portion is expanded after insertion. 図３の内視鏡用アタッチメントのスペーサに対する変形例としてのコイルバネ式スペーサを組み込んだときの断面図であって、図１４（Ａ）は、拡張部が延在状態（膨らんでいない状態）にあるときを示し、図１４（Ｂ）は、拡張部が膨らんだ状態を示す。FIG. 14A is a cross-sectional view when a coil spring type spacer is incorporated as a modified example of the spacer for the endoscope attachment of FIG. 3, and FIG. 14A shows the extended portion in an extended state (a state that does not swell). FIG. 14 (B) shows a state in which the extended portion is swollen. 図３の内視鏡用アタッチメントのクリップ部材に対する第一の変形例としての板バネ式クリップの斜視図The perspective view of the leaf | plate spring type clip as a 1st modification with respect to the clip member of the attachment for endoscopes of FIG. 図１５に示す変形例の板バネ式クリップを装着した内視鏡用アタッチメントの拡張部材まわりの断面図Sectional drawing around the expansion member of the attachment for endoscope which mounted | wore with the leaf | plate spring type clip of the modification shown in FIG. 図３の内視鏡用アタッチメントのクリップ部材に対する第二の変形例としてのコレットチャック式クリップの断面図Sectional drawing of the collet chuck type clip as a 2nd modification with respect to the clip member of the attachment for endoscopes of FIG. 従来の内視鏡用センタリングデバイスを適用した内視鏡構成図Endoscope configuration diagram using a conventional endoscope centering device 従来の内視鏡測定アタッチメントまわりの構成図Configuration diagram around the conventional endoscope measurement attachment 送電線鉄塔構造における鋼管連結部まわりの斜視図Perspective view around the steel pipe connection in the transmission line tower structure

以下、本発明の一実施形態について、図を用いて説明する。   Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

本実施形態の内視鏡用アタッチメントを適用する内視鏡装置１は、図１〜３に示すように本装置の制御を行う電気制御部３を内蔵する本体部２と、ＬＣＤ表示部４と、内視鏡挿入部７を操作するための操作部５と、上記挿入部７と、挿入部７が挿通し、貫通するガイドチューブ８とを具備しており、更に、上記ガイドチューブ８の先端側には、挿入部７の湾曲部を含む先端部を被検体内部の径方向中心に位置させるための内視鏡用アタッチメント（以下、アタッチメントと記載する）１１が装着される。   As shown in FIGS. 1 to 3, an endoscope apparatus 1 to which an endoscope attachment of the present embodiment is applied includes a main body section 2 including an electric control section 3 that controls the apparatus, an LCD display section 4, and the like. , An operation portion 5 for operating the endoscope insertion portion 7, the insertion portion 7, and a guide tube 8 through which the insertion portion 7 is inserted and penetrated, and the distal end of the guide tube 8. On the side, an endoscope attachment (hereinafter referred to as an attachment) 11 for mounting the distal end portion including the curved portion of the insertion portion 7 at the center in the radial direction inside the subject is mounted.

挿入部７は、可撓性挿入部７ａと、可撓性挿入部７ａの基端側に連結され、湾曲操作が可能な湾曲部７ｂと、湾曲部７の先端に配され、観察用ＣＣＤと照明部とを内蔵する挿入先端部７ｃとからなる。挿入部７は、挿入部基端部を操作部５の接続部６に固定して操作部５に装着される（図２）。   The insertion portion 7 is connected to the flexible insertion portion 7a, the proximal end side of the flexible insertion portion 7a, can be bent, and is arranged at the distal end of the bending portion 7. It consists of the insertion front-end | tip part 7c which incorporates an illumination part. The insertion portion 7 is attached to the operation portion 5 with the insertion portion base end fixed to the connection portion 6 of the operation portion 5 (FIG. 2).

ガイドチューブ８は、可撓性を有する管部材からなり、内部には挿入部７が貫通状態で挿通される。詳しくは、ガイドチューブ８に挿入部７を挿通し、挿入部７の湾曲部７ｂおよび挿入先端部７ｃをガイドチューブ８の先端側に装着されている後述する抜け止めユニット１２から露呈させた状態でガイドチューブ基端側の固定支持部９の接続部６に対してビス等により着脱可能に固定される（図１）。   The guide tube 8 is made of a flexible tube member, and the insertion portion 7 is inserted through the guide tube 8 in a penetrating state. Specifically, the insertion portion 7 is inserted into the guide tube 8, and the bending portion 7 b and the insertion distal end portion 7 c of the insertion portion 7 are exposed from a later-described retaining unit 12 attached to the distal end side of the guide tube 8. It is detachably fixed by screws or the like to the connection portion 6 of the fixed support portion 9 on the guide tube base end side (FIG. 1).

後述するようにアタッチメント１１の装着時、あるいは、スペーサ１６の交換時に固定支持部９を固定用接続部６から分離して、ガイドチューブ８を挿入部７に対して先端側方向に相対移動させて、挿入部７の先端部７ｃをガイドチューブ８の内部に引き込む必要がある（図１１）。   As will be described later, when the attachment 11 is mounted or when the spacer 16 is replaced, the fixing support portion 9 is separated from the fixing connection portion 6, and the guide tube 8 is moved relative to the insertion portion 7 in the distal end direction. The distal end portion 7c of the insertion portion 7 needs to be pulled into the guide tube 8 (FIG. 11).

アタッチメント１１は、図１，４，６に示すように抜け止めユニット１２と、拡張部材である拡張チューブ１５と、変形量規制部材であるスペーサ１６と、押し込み部材である押し込みチューブ１７とからなる。   As shown in FIGS. 1, 4 and 6, the attachment 11 includes a retaining unit 12, an expansion tube 15 as an expansion member, a spacer 16 as a deformation amount regulating member, and a push-in tube 17 as a push-in member.

抜け止めユニット１２は、図４，６，７，１１に示すように抜け止めリング保持具１３と、抜け止め部材である抜け止めリング１４とからなる。   As shown in FIGS. 4, 6, 7, and 11, the retaining unit 12 includes a retaining ring holder 13 and a retaining ring 14 that is a retaining member.

抜け止めリング保持具１３は、先端部分に複数のすり割り加工され、内径側に弾性変形可能な口金部１３ａを備えている。口金部１３ａの外周部には凹部１３ｂが設けられている。抜け止めリング保持具１３の基端側は、ガイドチューブ８の先端部に固定支持されている。   The retaining ring holder 13 includes a plurality of slits at the tip portion and a base portion 13a that can be elastically deformed on the inner diameter side. A concave portion 13b is provided on the outer peripheral portion of the base portion 13a. The proximal end side of the retaining ring holder 13 is fixedly supported by the distal end portion of the guide tube 8.

抜け止めリング１４は、保持具１３の凹部１３ｂに嵌入される。この嵌入状態では抜け止めリング１４は、先端側端面１４ｂが凹部１３ｂの前方に当接し、先端方向への抜け出しが防止される（図６，９）。また、抜け止めリング１４の基端側端面１４ａが外周側段部を形成する。この段部には後述する拡張チューブ１５の先端面１５ｂが当接し、拡張チューブ１５の先端方向への移動が規制される（図６，９）。ガイドチューブ８の固定支持９を外して、挿入部７を相対的にガイドチューブ８内に引き込んだ状態で、口金部１３ａを内径側に変形させると（図１１）、抜け止めリング１４を抜け止めリング保持具１３から取り外すことができ、アタッチメント１１の装着、あるいは、アタッチメント１１のスペーサ１６の交換が可能となる。   The retaining ring 14 is fitted into the recess 13 b of the holder 13. In this fitted state, the retaining ring 14 has the distal end side surface 14b abutting in front of the recess 13b, and is prevented from coming out in the distal direction (FIGS. 6 and 9). Further, the base end side end surface 14a of the retaining ring 14 forms an outer peripheral step. A distal end surface 15b of an expansion tube 15 to be described later comes into contact with this stepped portion, and movement of the expansion tube 15 in the distal direction is restricted (FIGS. 6 and 9). When the fixing support 9 of the guide tube 8 is removed and the base portion 13a is deformed to the inner diameter side in a state where the insertion portion 7 is relatively pulled into the guide tube 8 (FIG. 11), the retaining ring 14 is retained. It can be removed from the ring holder 13, and the attachment 11 can be attached or the spacer 16 of the attachment 11 can be replaced.

拡張チューブ１５は、ウレタン樹脂あるいはテフロン（登録商標）樹脂等の可撓性管部材からなり、両管端部１５ｂ，１５ｃの間が管長手方向に沿った切れ目１５ｄで周方向が複数に分割されて（本実施形態の場合は６分割）延在する弾性変形可能な拡張部１５ａを備えている（図３〜５）。本実施形態では３本の拡張チューブ１５がガイドチューブ８の先端部の外周に長手方向に沿って直列の状態でスライド可能に挿入されている。   The expansion tube 15 is made of a flexible tube member such as urethane resin or Teflon (registered trademark) resin, and the circumferential direction is divided into a plurality of portions 15d between the tube end portions 15b and 15c along the tube longitudinal direction. (In the case of the present embodiment, it is divided into six parts) and has an elastically deformable extension 15a (FIGS. 3 to 5). In the present embodiment, three extension tubes 15 are slidably inserted into the outer periphery of the distal end portion of the guide tube 8 in series along the longitudinal direction.

スペーサ１６は、軸方向長さＢ（図９）を有する円管部材からなり、各拡張チューブ１５の拡張部１５ａの内側に挿入され、かつ、ガイドチューブ８の外周部にスライド可能に挿入される（図４，６）。   The spacer 16 is made of a circular tube member having an axial length B (FIG. 9), is inserted inside the expansion portion 15 a of each expansion tube 15, and is slidably inserted into the outer peripheral portion of the guide tube 8. (FIGS. 4 and 6).

スペーサ１６の挿入状態の拡張チューブ１５の両端を互いに接近するように管長手方向に圧縮すると、拡張部１５ａが上記延在状態（膨らんでいない状態）から外径方向に向けて逆Ｕ字状に膨らむように弾性変形する（図５）。さらなる圧縮変形を行うと、拡張チューブ１５の先端側および基端側の管状端部１５ｂ，１５ｃの各内面がスペーサ１６を挟み込むようにして当接し、拡張チューブ１５の長手方向の圧縮量が規制される。この圧縮量規制によりスペーサ１６の軸方向長さＢに応じた拡張部１５ａの外周方向への膨らみ変形量、すなわち、膨らみ直径Ｄが得られる（図９，１０）。   When both ends of the expansion tube 15 in the inserted state of the spacer 16 are compressed in the longitudinal direction of the tube so as to approach each other, the expanded portion 15a becomes an inverted U shape from the extended state (not swelled) toward the outer diameter direction. It is elastically deformed so as to swell (FIG. 5). When further compression deformation is performed, the inner surfaces of the tubular ends 15b and 15c on the distal end side and the proximal end side of the expansion tube 15 come into contact with each other with the spacer 16 interposed therebetween, and the amount of compression in the longitudinal direction of the expansion tube 15 is regulated. The By this compression amount restriction, the amount of bulge deformation in the outer peripheral direction of the expanded portion 15a corresponding to the axial length B of the spacer 16, that is, the bulge diameter D is obtained (FIGS. 9 and 10).

スペーサ１６は、軸方向長さＢの異なるものが用意されている。従って、後述するように軸方向長さＢの異なるスペーサ１６を選択して装着することによって拡張部１５ａの膨らみ直径Ｄが設定できる。   Spacers 16 having different axial lengths B are prepared. Therefore, the bulge diameter D of the extended portion 15a can be set by selecting and mounting spacers 16 having different axial lengths B as will be described later.

押し込みチューブ１７は、可撓性コイルパイプ、あるいは、可撓性樹脂製チューブ等の可撓性管部材からなり、ガイドチューブ８の外周に挿入されており、基端側にストッパ機構部であるクリップ部１８が設けられている（図６）。   The push-in tube 17 is made of a flexible tube member such as a flexible coil pipe or a flexible resin tube, and is inserted into the outer periphery of the guide tube 8, and is a clip serving as a stopper mechanism portion on the proximal end side. A portion 18 is provided (FIG. 6).

クリップ部１８は、図８（Ａ）に示すように幅Ｈの長円断面形状を有し径方向に弾性変形が可能である。ガイドチューブ８に挿入され、クリップ部１８の外周部が解放された状態にあるとき、ガイドチューブ８に対して側方Ｅ点で当接して摩擦力が働くように嵌入しており、押し込みチューブ１７の相対移動を規制する（ロック状態）。すなわち、管長手方向の位置決めがなされる。また、図８（Ｂ）に示すようにクリップ部１８の上下方向に力Ｆを加えると上記側方Ｅ点での摩擦力がなくなり、押し込みチューブ１７はガイドチューブ８に対して管長手方向にスライド移動が可能な状態になる（ロック解放状態）。   As shown in FIG. 8A, the clip portion 18 has an oval cross-sectional shape with a width H and can be elastically deformed in the radial direction. When inserted into the guide tube 8 and the outer peripheral portion of the clip portion 18 is in a released state, it is fitted into the guide tube 8 so as to abut against the guide tube 8 at a side E point so that a frictional force is exerted. Is restricted (locked state). That is, positioning in the longitudinal direction of the pipe is performed. Further, as shown in FIG. 8B, when a force F is applied in the vertical direction of the clip portion 18, the frictional force at the side E point disappears, and the pushing tube 17 slides in the tube longitudinal direction with respect to the guide tube 8. Can move (lock released).

アタッチメント１１は、ガイドチューブ８の先端部に装着された状態では、拡張チューブ１５が管状端部（先端側）１５ｂが抜け止めリング１４に当接してガイドチューブ８に対する先端側方向への抜け出しが規制され、さらに、押し込みチューブ１７の先端部１７ａが拡張チューブ１５の管状端部（基端側）１５ｃに当接することでアタッチメント１１のガイドチューブ８に対する管長手方向の位置規制がなされる。   When the attachment 11 is attached to the distal end portion of the guide tube 8, the expansion tube 15 has a tubular end portion (front end side) 15 b abutting against the retaining ring 14, so that the guide tube 8 is prevented from coming out in the distal end direction. Further, the distal end portion 17a of the push-in tube 17 abuts on the tubular end portion (base end side) 15c of the expansion tube 15 so that the position of the attachment 11 in the tube longitudinal direction with respect to the guide tube 8 is regulated.

クリップ部１８の幅Ｈは（図８）、被検体である鋼管５１の開口５３ｂの幅ｂより小さい。また、拡張部１５ａが延在状態（膨らんでいない状態）にある拡張チューブ１５の外径も鋼管５１の開口５３ｂの幅ｂより小さい。従って、クリップ部１８を含むアタッチメント１１は、ガイドチューブ８、挿入部７とともに開口５３ｂから鋼管５１の内部に挿入が可能である。   The width H of the clip part 18 (FIG. 8) is smaller than the width b of the opening 53b of the steel pipe 51 that is the subject. In addition, the outer diameter of the expansion tube 15 in which the expanded portion 15 a is in the extended state (not inflated) is also smaller than the width b of the opening 53 b of the steel pipe 51. Therefore, the attachment 11 including the clip portion 18 can be inserted into the steel pipe 51 through the opening 53 b together with the guide tube 8 and the insertion portion 7.

押し込みチューブ１７のクリップ部１８をロック解放状態とすると、押し込みチューブ１７を先端側方向に相対移動させることができる。この相対移動により押し込みチューブ１７の先端部１７ａで拡張チューブ１５が先端側に向けて圧縮され、拡張部１５ａを延在状態（膨らんでいない状態）から逆Ｕ字状に膨らんむ状態へ変形させることが可能である。この押し込みチューブ１７の相対移動量は、上述したようにスペーサ１６により規制される。   When the clip portion 18 of the push-in tube 17 is in the unlocked state, the push-in tube 17 can be relatively moved in the distal direction. By this relative movement, the expansion tube 15 is compressed toward the distal end side by the distal end portion 17a of the push-in tube 17, and the expanded portion 15a is deformed from an extended state (not inflated state) to an inflated U-shape. Is possible. The relative movement amount of the push-in tube 17 is regulated by the spacer 16 as described above.

上述した構成を有する内視鏡装置１により、例えば、被検体である送電鉄塔の補強用の鋼管５１（図２０）の内周面の観察を行う場合の操作について、図１３（Ａ），（Ｂ），（Ｃ）等を用いて説明する。   With respect to the operation in the case of observing the inner peripheral surface of the steel pipe 51 (FIG. 20) for reinforcing the power transmission tower, which is the subject, by the endoscope apparatus 1 having the above-described configuration, for example, FIG. A description will be given using B), (C), and the like.

アタッチメント１１を含むガイドチューブ８および挿入部７を鋼管５１の内部に挿入するに先立って、鋼管５１の内径寸法に対応した軸方向長さＢを有するスペーサ１６を選択して拡張チューブ１５内に挿入する必要がある。   Prior to inserting the guide tube 8 including the attachment 11 and the insertion portion 7 into the steel pipe 51, the spacer 16 having an axial length B corresponding to the inner diameter of the steel pipe 51 is selected and inserted into the expansion tube 15. There is a need to.

なお、スペーサ１６を取り替えるには、一旦、ガイドチューブ８の固定支持部９を外してガイドチューブ８を挿入部７に対して先端側にずらして、挿入部７の先端部７ｃをガイドチューブ８の内部に引き込む（図１１）。そこで、抜け止めユニット１２の口金部１３ａを内径側に変形させて抜け止めリング１４を抜き取る（図１１）。この抜き取り状態で拡張チューブ１５をガイドチューブ８より前方に移動させてスペーサ１６を入れ替え、再度、抜け止めリング１４を嵌め込む。この入れ替え操作後、再度、固定支持部９を接続部６に固定し、ガイドチューブ８から挿入部７の湾曲部７ｂ、先端部７ｃが露呈した状態にする（図４，６）。   In order to replace the spacer 16, the fixing support portion 9 of the guide tube 8 is once removed, the guide tube 8 is shifted to the distal end side with respect to the insertion portion 7, and the distal end portion 7 c of the insertion portion 7 is moved to the guide tube 8. Pull inside (FIG. 11). Accordingly, the cap portion 13a of the retaining unit 12 is deformed to the inner diameter side, and the retaining ring 14 is removed (FIG. 11). In this extracted state, the expansion tube 15 is moved forward from the guide tube 8 to replace the spacer 16, and the retaining ring 14 is fitted again. After this replacement operation, the fixing support portion 9 is again fixed to the connection portion 6 so that the bending portion 7b and the distal end portion 7c of the insertion portion 7 are exposed from the guide tube 8 (FIGS. 4 and 6).

ガイドチューブ８および挿入部７を鋼管５１の内部に挿入する直前の状態では、押し込みチューブ１７は、拡張チューブ１５を非圧縮状態である押圧しない位置に後退させて拡張部１５ａを延在状態（膨らんでいない状態）に保持する（図１３（Ａ））。この状態のまま、挿入部７とガイドチューブ８上の拡張チューブ１５、押し込みチューブ１７までを鋼管５１の開口部５３ｂ（図２０）から挿入する。クリップ部１８は挿入しない（図１３（Ｂ））。   In a state immediately before the guide tube 8 and the insertion portion 7 are inserted into the steel pipe 51, the push-in tube 17 retracts the expansion tube 15 to an uncompressed position where it is not pressed, and the expansion portion 15a is extended (inflated). (The state which is not) in FIG. 13 (A). In this state, the insertion portion 7, the expansion tube 15 on the guide tube 8, and the push-in tube 17 are inserted from the opening 53 b (FIG. 20) of the steel pipe 51. The clip part 18 is not inserted (FIG. 13B).

上記挿入状態で押し込みチューブ１７のクリップ部１８を操作してロック解放状態にして押し込みチューブ１７をガイドチューブ８に対して先端側に相対移動させ、拡張チューブ１５を圧縮する。拡張チューブ１５の長手方向の長さがスペーサ１６によって規制されるまで押し込み、クリップ部１８をロック状態にする。この押し込み操作により拡張部１５ａが膨らみ直径Ｄまで膨らみ、鋼管５１の内周部に当接する（図１０，１３（Ｃ），２０）。この拡張部当接状態では挿入部７先端側が鋼管５１の軸中心位置に保持され、挿入部湾曲部７ｂを湾曲させながら挿入部先端部７ｃによる鋼管５１の内周面の観察を行うことができる。   In the inserted state, the clip portion 18 of the push-in tube 17 is operated to release the lock, and the push-in tube 17 is moved relative to the guide tube 8 toward the distal end side to compress the expansion tube 15. Pushing in until the length of the expansion tube 15 in the longitudinal direction is regulated by the spacer 16, the clip portion 18 is locked. By this pushing operation, the expanded portion 15a swells to the diameter D and contacts the inner peripheral portion of the steel pipe 51 (FIGS. 10, 13C, and 20). In this expanded portion contact state, the distal end side of the insertion portion 7 is held at the axial center position of the steel pipe 51, and the inner peripheral surface of the steel pipe 51 can be observed by the insertion portion distal end portion 7c while the insertion portion bending portion 7b is curved. .

鋼管５１の観察箇所が内部の深い場所であるとき、例えば、長さ数ｍ〜１０ｍ先の奥部であるときは、クリップ部１８もともに鋼管開口部５３ａから管内部に挿入し、内部の観察を行う。   When the observation spot of the steel pipe 51 is a deep place inside, for example, when it is a depth part several m to 10 m away, the clip part 18 is also inserted into the pipe from the steel pipe opening 53a, and the inside observation is performed. I do.

以上、説明した本実施形態のアタッチメント１１を適用する内視鏡装置１によれば、拡張チューブ１５の内部に装着するスペーサ１６を採用することによって拡張チューブ１５の長手方向の所望の圧縮状態とすることが可能であり、微妙な調節操作を行うことなく、拡張部１５ａの膨らみ直径Ｄを被検体の鋼管５１の内径に確実に合わせることができる。   As described above, according to the endoscope apparatus 1 to which the attachment 11 of the present embodiment described above is applied, by adopting the spacer 16 attached to the inside of the expansion tube 15, a desired compressed state in the longitudinal direction of the expansion tube 15 is obtained. Therefore, the bulge diameter D of the expanded portion 15a can be reliably adjusted to the inner diameter of the steel pipe 51 of the subject without performing a fine adjustment operation.

そして、スペーサ１６の長さの異なるものを用意し、選択することで種々の内径を有する被検体に対応することができ、しかも、観測直前でもスペーサ１６を交換することが可能であり、即応性に優れている。また、スペーサ１６の交換は、前述した方法で抜け止めユニット１２の抜け止めリング１４を外すことで簡単に行うことができる。   By preparing and selecting spacers 16 having different lengths, it is possible to deal with specimens having various inner diameters, and it is possible to replace the spacers 16 immediately before observation, and to respond quickly. Is excellent. The spacer 16 can be easily replaced by removing the retaining ring 14 of the retaining unit 12 by the method described above.

拡張部１５ａは前述したようにＵ字状に変形するので、膨らんだ外周部に異常な力が作用したとき、Ｕ字状部が挫屈し、長手方向に加わる力が軽減され、クリップ部１８のずれが防止できる。   Since the extended portion 15a is deformed into a U-shape as described above, when an abnormal force is applied to the swollen outer peripheral portion, the U-shaped portion is bent and the force applied in the longitudinal direction is reduced. Misalignment can be prevented.

それぞれ拡張部１５ａを備えた複数本の拡張チューブ１５（本実施形態では３本）を採用することで拡張片１５ａによる挿入部７の被検体内部での保持力、保持位置安定度を向上させることができる。なお、複数本の拡張チューブ１５を一体化した構造のものを適用することも可能である。さらには、拡張部１５ａの膨らみ直径を先端側に向けて徐々に減じた一体型拡張チューブも提案できる。   By adopting a plurality of extension tubes 15 (three in this embodiment) each having an extension part 15a, the holding force and holding position stability of the insertion part 7 inside the subject by the extension piece 15a are improved. Can do. It is also possible to apply a structure in which a plurality of expansion tubes 15 are integrated. Furthermore, an integrated expansion tube in which the bulge diameter of the expansion portion 15a is gradually reduced toward the distal end side can be proposed.

押し込みチューブ１７に後端部に簡単なロック、解放操作が可能なクリップ部１８を配することで拡張チューブ１５の長手方向の圧縮移動と固定保持を容易に切り替えることができる。   By disposing the clip portion 18 capable of simple locking and releasing operation at the rear end portion of the push-in tube 17, it is possible to easily switch the compression movement and the fixed holding of the expansion tube 15 in the longitudinal direction.

クリップ部１８の幅Ｈを被検体の挿入開口部５３ｃの幅ｂより小さく設定することで該クリップ部１８を含めてアタッチメント１１を被検体内部に挿入することが可能となる。従って、クリップ部１８が被検体の外部にあるとき、拡張チューブ１５の長手方向に圧縮操作を行って拡張部１５ａの膨らみ変形量を規定しておき、その後、クリップ部１８を含めたアタッチメント１１の被検体内部への挿入を行うことにより、被検体の長手方向の深い部分の観察が可能になる。   By setting the width H of the clip portion 18 to be smaller than the width b of the insertion opening 53c of the subject, the attachment 11 including the clip portion 18 can be inserted into the subject. Therefore, when the clip portion 18 is outside the subject, a compression operation is performed in the longitudinal direction of the expansion tube 15 to define the amount of bulging deformation of the expansion portion 15a, and then the attachment 11 including the clip portion 18 is attached. By inserting into the subject, it is possible to observe a deep portion in the longitudinal direction of the subject.

また、押し込みチューブ１７の長さを適切な長さとすることで、拡張チューブ１５を長手方向に圧縮操作するためのクリップ部１８を含めた押し込みチューブ１７の移動が容易になる。   Further, by setting the length of the push tube 17 to an appropriate length, the push tube 17 including the clip portion 18 for compressing the expansion tube 15 in the longitudinal direction can be easily moved.

上述した実施形態では、ガイドチューブ８は、基端側を内視鏡側操作部５の接続部６に固定支持部９を固定して支持されている。これに対してガイドチューブ８を押し込みチューブ１７の基端側の近傍位置で分割し、分割されたより短いガイドチューブ８の先端側分を挿入部７に対して分離可能に結合する構成も提案できる。この構成の場合、上述した拡張部材１５の装着やスペーサ１６の交換作業時、ガイドチューブ８の内部に上記挿入部７の先端側を引き込む際、押し込みチューブ１７の基端側の近傍にてガイドチューブ８を挿入部７から分離することにより上述した挿入部７の引き込み作業が容易になる。   In the embodiment described above, the guide tube 8 is supported by fixing the fixed support portion 9 to the connection portion 6 of the endoscope side operation portion 5 on the proximal end side. On the other hand, it is also possible to propose a configuration in which the guide tube 8 is divided at a position near the proximal end of the push-in tube 17 and the distal end side of the shorter divided guide tube 8 is detachably coupled to the insertion portion 7. In the case of this configuration, when the distal end side of the insertion portion 7 is pulled into the guide tube 8 when the expansion member 15 is mounted or the spacer 16 is replaced, the guide tube is near the proximal end side of the pushing tube 17. By separating 8 from the insertion portion 7, the above-described pull-in operation of the insertion portion 7 is facilitated.

また、アタッチメント１１をガイドチューブ８を介さず直接、挿入部７に装着する構成を採用することも可能である。この場合、挿入部７に抜け止めリング１４を直接、ビス等で固定する。従って、スペーサ１５を交換するには、抜け止めリング１４を挿入部７から取り外すことになる。   It is also possible to adopt a configuration in which the attachment 11 is directly attached to the insertion portion 7 without using the guide tube 8. In this case, the retaining ring 14 is directly fixed to the insertion portion 7 with a screw or the like. Therefore, in order to replace the spacer 15, the retaining ring 14 is removed from the insertion portion 7.

アタッチメント１１が適用される内視鏡装置による観察被検体としては、鋼管５１以外、鋼板製や木製等のダクトであってもよい。   In addition to the steel pipe 51, the observation object by the endoscope apparatus to which the attachment 11 is applied may be a duct made of steel plate or wood.

上述した実施形態に適用したスペーサ１６に替わる変形例として図１４（Ａ），（Ｂ）に示すコイルバネ式スペーサ１６Ａを適用することも可能である。   A coil spring type spacer 16A shown in FIGS. 14A and 14B can be applied as a modified example in place of the spacer 16 applied to the above-described embodiment.

本変形例のコイルバネ式スペーサ１６Ａは、圧縮コイルバネからなり、図１４（Ａ）に示すように拡張チューブ１５が非圧縮状態にあるとき、ほぼ自由状態に伸張しており、拡張部１５ａが長手方向に延在している（膨らんでいない状態）。図１４（Ｂ）に示すように拡張チューブ１５が圧縮されて、スペーサ１６Ａが密着状態になると、拡張部１５ａが外径方向に膨らみ、所定の膨らみ状態になる。   The coil spring type spacer 16A of this modified example is composed of a compression coil spring, and when the expansion tube 15 is in an uncompressed state as shown in FIG. (Not inflated). As shown in FIG. 14B, when the expansion tube 15 is compressed and the spacer 16A is brought into a close contact state, the expansion portion 15a swells in the outer diameter direction to a predetermined swell state.

本変形例の圧縮バネ式スペーサ１６Ａによれば、拡張チューブ１５が非圧縮状態にあるとき、伸張することからより確実な拡張部１５ａが延在する状態（膨らんでいない状態）が得られ、アタッチメント１１の鋼管５１内への挿入が容易になる。また、圧縮バネ式スペーサ１６Ａの場合、バネの巻き数を変えることで圧縮時の密着長を変えることができる。   According to the compression spring type spacer 16A of this modified example, when the expansion tube 15 is in an uncompressed state, the expansion portion 15a is expanded, so that a more reliable expansion portion 15a can be obtained (non-inflated state). 11 can be easily inserted into the steel pipe 51. In the case of the compression spring type spacer 16A, the contact length during compression can be changed by changing the number of turns of the spring.

上述した実施形態に適用したストッパ機構部であるクリップ部１８に替えて図１５，１６に示す第一の変形例の板バネ式クリップ１８Ａを適用することも可能である。   It is also possible to apply the leaf spring type clip 18A of the first modification shown in FIGS. 15 and 16 in place of the clip portion 18 which is the stopper mechanism portion applied to the above-described embodiment.

本変形例の板バネ式クリップ１８Ａは、図１５に示すようにＶ字状に折り曲げた板バネ材からなり、対向する位置にガイドチューブ８に嵌入する穴１８Ａａが設けられる。クリップ１８Ａは、図１６に示すようにガイドチューブ８に装着された状態で先端側に移動させ、拡張チューブ１５を押圧、圧縮して拡張部１５ａを膨らませた状態でガイドチューブ８上に固定（ロック）される。拡張チューブ１５を解放するにはクリップ１８Ａを軸方向に窄める。   The leaf spring type clip 18A of this modification is made of a leaf spring material bent into a V shape as shown in FIG. 15, and is provided with a hole 18Aa that fits into the guide tube 8 at an opposing position. As shown in FIG. 16, the clip 18A is moved to the distal end side while being attached to the guide tube 8 and fixed (locked) on the guide tube 8 in a state in which the expansion tube 15 is pressed and compressed to expand the expansion portion 15a. ) To release the expansion tube 15, the clip 18A is axially squeezed.

板バネ式クリップ１８Ａは、構造が簡単であり、かつ、ロック、解放を確実に行うことができる。なお、クリップ１８Ａと拡張チューブ１５の間に押し込みチューブ１７を介在させることは可能である。   The leaf spring clip 18A has a simple structure and can be reliably locked and released. It is possible to interpose the pushing tube 17 between the clip 18A and the expansion tube 15.

さらに、上述した実施形態に適用したストッパ機構部であるクリップ部１８に替えて図１７に示す第二の変形例のコレットチャック式クリップ１８Ｂを適用することも可能である。   Furthermore, it is also possible to apply the collet chuck type clip 18B of the second modified example shown in FIG. 17 in place of the clip portion 18 which is the stopper mechanism portion applied to the above-described embodiment.

本変形例のコレットチャック式クリップ１８Ｂは、図１７に示すようにガイドチューブ８に嵌入する爪部を有する本体部１８Ｂａと、ナット部１８Ｂｂからなる。クリップ１８Ｂは、ガイドチューブ８に挿入し先端側に移動させ、拡張チューブ１５を押圧、圧縮して拡張部１５ａを膨らませた状態でナット部１８Ｂｂを締め付け固定（ロック）する。   As shown in FIG. 17, the collet chuck type clip 18B of this modification includes a main body portion 18Ba having a claw portion to be fitted into the guide tube 8, and a nut portion 18Bb. The clip 18B is inserted into the guide tube 8 and moved to the distal end side. The nut portion 18Bb is tightened and fixed (locked) in a state where the expansion tube 15 is pressed and compressed to expand the expansion portion 15a.

コレットチャック式クリップ１８Ｂによれば、ロックをより確実に行うことができる。なお、クリップ１８Ｂと拡張チューブ１５の間に押し込みチューブ１７を介在させることは可能である。   According to the collet chuck type clip 18B, locking can be performed more reliably. It is possible to interpose the pushing tube 17 between the clip 18B and the expansion tube 15.

この発明は、上記各実施の形態に限ることなく、その他、実施段階ではその要旨を逸脱しない範囲で種々の変形を実施し得ることが可能である。さらに、上記各実施形態には種々の段階の発明が含まれており、開示される複数の構成要件における適宜な組合せにより種々の発明が抽出され得る。   The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention at the stage of implementation. Further, the above embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements.

上述のように本発明の内視鏡用アタッチメントおよび該アタッチメントを適用する内視鏡装置は、検体内部を内視鏡により観察、または、測定する際に内視鏡挿入部を狭い隙間を挿通させることが可能であって、かつ、該挿入状態にて簡単な操作で上記挿入部先端を被検体内部に保持することが可能であり、構造も簡単な内視鏡用アタッチメントおよび該アタッチメントを適用する内視鏡装置としての利用が可能である。   As described above, the endoscope attachment of the present invention and the endoscope apparatus to which the attachment is applied allow the endoscope insertion portion to pass through a narrow gap when observing or measuring the inside of the specimen with the endoscope. It is possible to hold the distal end of the insertion portion inside the subject with a simple operation in the insertion state, and to apply the attachment for an endoscope and the attachment with a simple structure. It can be used as an endoscope device.

７…内視鏡挿入部
１１…内視鏡用アタッチメント
１４…抜け止めリング（抜け止め部材）
１５…拡張チューブ（拡張部材）
１５ａ…拡張部
１６…スペーサ（変形量規制部材）
１６Ａ…コイルバネ式スペーサ（変形量規制部材）
１７…押し込みチューブ（押し込み部材）
１８…クリップ部（ストッパ機構部）
１８Ａ…板バネ式クリップ（ストッパ機構部）
１８Ｂ…コレットチャック式クリップ（ストッパ機構部）
５１…鋼管（被検体） 7 ... Endoscope insertion part 11 ... Attachment for endoscope 14 ... Retaining ring (retaining member)
15 ... Expansion tube (expansion member)
15a ... Expansion part 16 ... Spacer (deformation amount regulating member)
16A ... Coil spring type spacer (deformation amount regulating member)
17 ... Pushing tube (pushing member)
18 ... Clip part (stopper mechanism part)
18A ... leaf spring type clip (stopper mechanism)
18B ... Collet chuck type clip (stopper mechanism)
51 ... Steel pipe (subject)

Claims (8)

内視鏡挿入部に装着されて、該内視鏡挿入部を被検体内部に保持するための内視鏡用アタッチメントにおいて、
上記内視鏡挿入部の外周に摺動可能に挿入され、非圧縮状態では上記内視鏡挿入部の長手方向に沿って延在しており、押圧圧縮によって外方に向けて弾性変形可能な複数の拡張部を備えた拡張部材と、
上記内視鏡挿入部の先端側に装着され、上記拡張部材の先端と当接可能な抜け止め部材と、
上記拡張部材の内周部に長手方向にスライド可能に挿入され、上記拡張部の変形量を規制する変形量規制部材と、
上記内視鏡挿入部の外周にスライド可能に挿入され、上記拡張部材の端部に当接し、上記拡張部材の長手方向の基端側端部を押圧する押し込み部材と、
を具備し、
上記変形量規制部材は、上記拡張部材の内周部に入れ替えが可能であることを特徴とする内視鏡用アタッチメント。 In an attachment for an endoscope that is attached to an endoscope insertion portion and holds the endoscope insertion portion inside a subject.
It is slidably inserted into the outer periphery of the endoscope insertion portion, extends in the longitudinal direction of the endoscope insertion portion in an uncompressed state, and can be elastically deformed outward by pressing compression. An expansion member having a plurality of expansion portions;
A retaining member attached to the distal end side of the endoscope insertion portion and capable of coming into contact with the distal end of the expansion member;
A deformation amount regulating member that is slidably inserted in the inner circumferential portion of the expansion member in the longitudinal direction and regulates the deformation amount of the expansion portion;
A push-in member that is slidably inserted into the outer periphery of the endoscope insertion portion, abuts against an end portion of the expansion member, and presses a proximal end portion in the longitudinal direction of the expansion member;
Comprising
The endoscope attachment according to claim 1, wherein the deformation amount regulating member can be replaced with an inner peripheral portion of the expansion member. 上記拡張部材の内周部には、上記長手方向の長さが異なる変形量規制部材を入れ替え可能であることを特徴とする請求項１に記載の内視鏡用アタッチメント。 The endoscope attachment according to claim 1, wherein a deformation amount regulating member having a different length in the longitudinal direction can be replaced with an inner peripheral portion of the expansion member . 上記押し込み部材は、上記挿入部、または、上記ガイドチューブに対して固定、または、解放するためのストッパ機構部を備えていることを特徴とする請求項１又は２に記載の内視鏡用アタッチメント。 The endoscope attachment according to claim 1 or 2, wherein the push-in member includes a stopper mechanism for fixing or releasing the insertion portion or the guide tube. . 上記変形量規制部材は、上記長手方向の長さに応じて上記拡張部の変形量を規制することを特徴とする請求項１から３のいずれか１項に記載の内視鏡用アタッチメント。 The endoscope attachment according to any one of claims 1 to 3, wherein the deformation amount restricting member restricts the deformation amount of the expansion portion according to the length in the longitudinal direction . 上記変形量規制部材を上記拡張部材の内周部に入れ替える場合、上記抜け止め部材を上記内視鏡挿入部から取り外すことを特徴とする請求項１から４のいずれか１項に記載の内視鏡用アタッチメント。 The endoscope according to any one of claims 1 to 4, wherein when the deformation amount regulating member is replaced with an inner peripheral portion of the expansion member, the retaining member is removed from the endoscope insertion portion. Mirror attachment. 上記拡張部材が非圧縮状態にある場合、上記変形量規制部材は伸張しており、上記拡張部材が圧縮状態にある場合、上記変形量規制部材は圧縮していることを特徴とする請求項１に記載の内視鏡用アタッチメント。 The deformation amount regulating member is extended when the expansion member is in an uncompressed state, and the deformation amount regulating member is compressed when the expansion member is in a compressed state. Attachment for endoscope as described in 1 . 上記変形量規制部材はコイルバネであり、バネの巻き数に応じて上記拡張部の変形量を規制することを特徴とする請求項６に記載の内視鏡用アタッチメント。 The endoscope attachment according to claim 6, wherein the deformation amount restricting member is a coil spring and restricts the deformation amount of the expansion portion according to the number of turns of the spring . 請求項１から７のいずれか１項に記載の内視鏡用アタッチメントと、The endoscope attachment according to any one of claims 1 to 7,
上記内視鏡用アタッチメントを装着可能な内視鏡挿入部と、An endoscope insertion section capable of mounting the endoscope attachment;
を備えていることを特徴とする内視鏡装置。An endoscope apparatus comprising:
JP2010290803A 2010-12-27 2010-12-27 Attachment for endoscope and endoscope apparatus Expired - Fee Related JP5675332B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2010290803A JP5675332B2 (en) 2010-12-27 2010-12-27 Attachment for endoscope and endoscope apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010290803A JP5675332B2 (en) 2010-12-27 2010-12-27 Attachment for endoscope and endoscope apparatus

Publications (3)

Publication Number Publication Date
JP2012137666A JP2012137666A (en) 2012-07-19
JP2012137666A5 JP2012137666A5 (en) 2014-02-13
JP5675332B2 true JP5675332B2 (en) 2015-02-25

Family

ID=46675119

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2010290803A Expired - Fee Related JP5675332B2 (en) 2010-12-27 2010-12-27 Attachment for endoscope and endoscope apparatus

Country Status (1)

Country Link
JP (1) JP5675332B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6926593B2 (en) * 2017-03-30 2021-08-25 日本ゼオン株式会社 Suture device

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US355689A (en) * 1887-01-11 Chair-guide
JPH02246921A (en) * 1989-03-22 1990-10-02 Mitsubishi Cable Ind Ltd Scopic objective oscillating structural body
JP3015062B2 (en) * 1990-04-18 2000-02-28 オリンパス光学工業株式会社 Industrial endoscope device
JPH0473859U (en) * 1990-11-02 1992-06-29
WO1994002843A1 (en) * 1992-07-17 1994-02-03 Niagara Mohawk Power Corporation Centralizer for internal pipe inspection device
JP2000270432A (en) * 1999-03-15 2000-09-29 C-Cube Corp Guide wire attachment
JP2003337288A (en) * 2002-05-17 2003-11-28 Sumiden Asahi Industries Ltd Intra-pipe inspection device
JP2006227126A (en) * 2005-02-15 2006-08-31 Olympus Corp Centering device, guide tube, endoscopic system and method for attaching centering device
JP4885460B2 (en) * 2005-02-15 2012-02-29 オリンパス株式会社 Centering device
JP5329273B2 (en) * 2009-03-24 2013-10-30 日本コヴィディエン株式会社 Endoscope bending tool and endoscope set

Also Published As

Publication number Publication date
JP2012137666A (en) 2012-07-19

Similar Documents

Publication Publication Date Title
US4046149A (en) Instrument for removing a foreign substance from the body cavity of human being
CN104905861B (en) Device for being arranged in receiving part on the head of bone anchoring element
US7122002B2 (en) Endoscope hood and endoscopic mucosa cutting device
US9429204B2 (en) Holding device for medical instruments
JP5350645B2 (en) Medical system and endoscope system
US20150101442A1 (en) Method, apparatus, and a system for facilitating bending of an instrument in a surgical or medical robotic environment
JP4749855B2 (en) Endoscopic treatment tool
KR20150095629A (en) Tympanostomy Tube and Insertion Device
JP2001252282A (en) Foreign substance recovery implement for endoscope
JP5802864B1 (en) Endoscope sheath
JP2006204745A (en) Treatment tool for endoscope
WO2015087952A1 (en) Basket-type gripping forceps
JP5555016B2 (en) Guide tube for bent tube passage
JP5675332B2 (en) Attachment for endoscope and endoscope apparatus
US11589735B2 (en) Optical connecting device for a surgical instrument
JP2005522261A (en) Device for coupling functional units arranged in a housing in a dismountable manner
WO2017017753A1 (en) Tissue recovery tool and tissue recovery system
CN213525439U (en) Spinal endoscope double-channel instrument with adjustable angle
CN101467911B (en) Surgical forceps with coil spring
US20070233154A1 (en) Tool for removing broken intramedullary rods
JP6448508B2 (en) Method of plastic deformation of close contact coil spring
JP4370147B2 (en) Ultrasound puncture needle
JP4338472B2 (en) Endoscopic clip device
KR101868862B1 (en) The flexible catheter having fixing mechanism when bending
JP6599677B2 (en) Endoscope device

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20131219

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20131219

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20140516

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20140603

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20140717

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20141216

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20141224

R151 Written notification of patent or utility model registration

Ref document number: 5675332

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313111

LAPS Cancellation because of no payment of annual fees
R371 Transfer withdrawn

Free format text: JAPANESE INTERMEDIATE CODE: R371

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313111

R371 Transfer withdrawn

Free format text: JAPANESE INTERMEDIATE CODE: R371