JP2012050554A - Connecting mechanism of endoscope operation section - Google Patents

Connecting mechanism of endoscope operation section Download PDF

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JP2012050554A
JP2012050554A JP2010194308A JP2010194308A JP2012050554A JP 2012050554 A JP2012050554 A JP 2012050554A JP 2010194308 A JP2010194308 A JP 2010194308A JP 2010194308 A JP2010194308 A JP 2010194308A JP 2012050554 A JP2012050554 A JP 2012050554A
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operation wire
portion side
wire
unit
endoscope
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JP5496023B2 (en
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Toshihiko Nakade
俊彦 中出
Nobuyuki Matsuura
伸之 松浦
Yoshiyuki Tanii
好幸 谷井
Shigeru Nemoto
滋 根本
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Olympus Corp
Olympus Medical Systems Corp
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Olympus Corp
Olympus Medical Systems Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a connecting mechanism of an endoscope operation section in which operating wires themselves can be easily and quickly coupled and the tension of the operating wires can be easily and quickly adjusted without removing the whole body part from a gripping part.SOLUTION: The connecting mechanism 121 connects the inserting part side operating wire 51 and the operating part side operating wire 53 in the inside 101e of the cylinder part 101 connecting the inserting part side and the operating part side. The connecting mechanism 121 has the opening part 101b formed in the outer peripheral face 101c of the cylinder part 101 and opening toward the outside, the crease preventing part covering the cylinder part including the opening part 101b, the connecting body part 121 connecting the inserting part side operating wire 51 and the operating part side operating wire 53 while adjusting the tension of at least one of them, and the guide part 151 guiding the connecting body part 121 so as to slide in the longitudinal direction of the connecting body part 121 and holding the connecting body part 121 such that the connecting body part 121 is exposed from the opening part 101b when the crease preventing part is removed from the cylinder part.

Description

本発明は、内視鏡に配設され、操作部側の操作ワイヤと挿入部側の操作ワイヤとを連結し、操作ワイヤの張力を調整する内視鏡操作部の連結機構に関する。   The present invention relates to a connection mechanism of an endoscope operation unit that is disposed in an endoscope, connects an operation wire on an operation unit side and an operation wire on an insertion unit side, and adjusts the tension of the operation wire.

内視鏡の操作部は、操作ワイヤを牽引することで湾曲部を操作している。この操作部には、操作部側の操作ワイヤと挿入部側の操作ワイヤとを連結し、操作ワイヤの張力を調整する連結機構が配設されている。このような内視鏡操作部の連結機構は、例えば特許文献1,2,3に開示されている。   The operation part of the endoscope operates the bending part by pulling the operation wire. The operation unit is provided with a connection mechanism that connects the operation wire on the operation unit side and the operation wire on the insertion unit side and adjusts the tension of the operation wire. Such a connection mechanism of the endoscope operation unit is disclosed in Patent Documents 1, 2, and 3, for example.

例えば特許文献1には、操作ワイヤの遊びの除去・調整を行えるワイヤ調整機構が開示されている。特許文献1において、操作ワイヤは螺旋管を挿通している。螺旋管の基端部には、螺旋管の基端部の位置を調整する操作部ノブとラックとピニオンとが配設されている。このような基端部と操作ノブとラックとピニオンとは、スリーブに覆われている。操作部ノブが操作されると、螺旋管の基端部の位置は、ラックとピニオンとによって、調整される。これにより操作ワイヤの張力が調整される。   For example, Patent Document 1 discloses a wire adjustment mechanism that can remove and adjust play of an operation wire. In Patent Document 1, the operation wire passes through a helical tube. An operation unit knob, a rack, and a pinion for adjusting the position of the proximal end portion of the spiral tube are disposed at the proximal end portion of the spiral tube. Such a base end portion, an operation knob, a rack, and a pinion are covered with a sleeve. When the operation section knob is operated, the position of the proximal end portion of the spiral tube is adjusted by the rack and the pinion. As a result, the tension of the operation wire is adjusted.

また例えば特許文献2には、ワイヤの接続部分の弛みを確実に防止可能なワイヤの接続構造及び内視鏡の湾曲操作ワイヤの接続構造が開示されている。特許文献2において、操作ワイヤ端部は、中空のブロックにねじ込まれている。   Further, for example, Patent Document 2 discloses a wire connection structure and a bending operation wire connection structure of an endoscope that can reliably prevent loosening of a wire connection portion. In Patent Document 2, the end portion of the operation wire is screwed into a hollow block.

また例えば特許文献3には、操作部側のワイヤと挿入部側のワイヤとの連結部がコンパクトで、かつワイヤのテンション調整が容易な、操作感の良い内視鏡が開示されている。特許文献3において、操作ワイヤ端部は、連続した溝にはめ込まれている。   Further, for example, Patent Document 3 discloses an endoscope with a good operational feeling in which the connecting portion between the wire on the operation portion side and the wire on the insertion portion side is compact and the tension of the wire can be easily adjusted. In Patent Document 3, the end portion of the operation wire is fitted in a continuous groove.

特開平1−303120号公報JP-A-1-303120 特開2003−290138号公報JP 2003-290138 A 特開2001−37706号公報JP 2001-37706 A

上述した特許文献1において、操作ノブとラックとピニオンとがスリーブ(操作部の本体部)内に配設されるため、スリーブが大型化してしまう。またピニオンの回転を止める回転止め機構が別途必要となるため、スリーブが大型化してしまう。   In Patent Document 1 described above, since the operation knob, the rack, and the pinion are disposed in the sleeve (the main body of the operation unit), the sleeve is increased in size. In addition, since a rotation stopping mechanism for stopping the rotation of the pinion is required separately, the sleeve becomes large.

また特許文献2に示す方式や特許文献3に示す方式は、操作ワイヤの張力を調整するために、操作ワイヤの端部の間の距離を調整する作業領域を必要としている。そのため把持部の内部に広い空間を確保する必要があり、結果的に把持部が大型化してしまう。また距離を調整するために、操作部の本体部を把持部に対して着脱可能にする必要があり、着脱作業と、空間における水密確保作業とが必要となり、手間と時間がかかる。   Further, the method shown in Patent Document 2 and the method shown in Patent Document 3 require a work area for adjusting the distance between the ends of the operation wire in order to adjust the tension of the operation wire. Therefore, it is necessary to secure a wide space inside the gripping portion, and as a result, the gripping portion becomes large. Further, in order to adjust the distance, it is necessary to make the main body of the operation unit detachable from the gripping unit, and it is necessary to perform the detachment work and the work for ensuring watertightness in the space, which takes time and effort.

本発明は、これらの事情に鑑みてなされたものであり、把持部から本体部全体を取り外すことなく、操作ワイヤ同士を容易且つ短時間に連結でき、且つ操作ワイヤの張力を容易且つ短時間に調整できる内視鏡操作部の連結機構を提供することを目的とする。   The present invention has been made in view of these circumstances, and the operation wires can be connected easily and in a short time without removing the entire main body from the gripping portion, and the tension of the operation wire can be easily and in a short time. It is an object of the present invention to provide a connecting mechanism for an endoscope operation unit that can be adjusted.

本発明は目的を達成するために、内視鏡の挿入部側と前記内視鏡の操作部側とを連結する連結部の内部にて、前記挿入部側の挿入部側操作ワイヤと、前記操作部側の操作部側操作ワイヤとを連結する内視鏡操作部の連結機構であって、前記連結部の外周面に形成され、外部に向かって開口している開口部と、前記連結部に対して着脱自在であり、前記連結部に配設された際に、前記開口部を含む前記連結部を覆う被覆部と、前記連結部の内部に配設され、前記挿入部側操作ワイヤと前記操作部側操作ワイヤとの少なくとも一方の張力を調整しつつ前記挿入部側操作ワイヤと前記操作部側操作ワイヤとを連結する連結本体部と、前記連結部の内部に配設され、前記連結本体部が前記連結本体部の長手軸方向に摺動するように前記連結本体部をガイドし、且つ前記被覆部が前記連結部から取り外された際に前記連結本体部が前記開口部から露出するように前記連結本体部を保持するガイド部と、を具備することを特徴とする内視鏡操作部の連結機構を提供する。   In order to achieve the object, the present invention provides an insertion portion side operation wire on the insertion portion side inside a connecting portion that connects the insertion portion side of the endoscope and the operation portion side of the endoscope, An endoscope operation unit coupling mechanism that couples an operation unit side operation wire on the operation unit side, the opening being formed on the outer peripheral surface of the coupling unit and opening outward, and the coupling unit A covering portion that covers the connecting portion including the opening when disposed in the connecting portion, and is provided inside the connecting portion, and the insertion portion side operation wire A connection main body for connecting the insertion portion side operation wire and the operation portion side operation wire while adjusting at least one tension with the operation portion side operation wire, and disposed inside the connection portion. The connecting body portion is galvanized so that the body portion slides in the longitudinal axis direction of the connecting body portion. And a guide portion that holds the connecting body portion so that the connecting body portion is exposed from the opening when the covering portion is detached from the connecting portion. Provided is a connection mechanism of an endoscope operation unit.

本発明によれば、把持部から本体部全体を取り外すことなく、操作ワイヤ同士を容易且つ短時間に連結でき、且つ操作ワイヤの張力を容易且つ短時間に調整できる内視鏡操作部の連結機構を提供することができる。   According to the present invention, it is possible to connect the operation wires easily and in a short time without detaching the entire main body from the gripping portion, and the connection mechanism of the endoscope operation unit that can easily and quickly adjust the tension of the operation wire. Can be provided.

図1は、本発明に係る内視鏡の概略図である。FIG. 1 is a schematic view of an endoscope according to the present invention. 図2Aは、連結機構が開口部から露出している筒部の斜視図である。FIG. 2A is a perspective view of the cylindrical portion in which the coupling mechanism is exposed from the opening. 図2Bは、開口部の変形例である。FIG. 2B is a modification of the opening. 図3Aは、第1の実施形態における連結本体部の斜視図である。FIG. 3A is a perspective view of a connection main body portion according to the first embodiment. 図3Bは、連結本体部の分解斜視図である。FIG. 3B is an exploded perspective view of the connection main body. 図3Cは、摺動溝部の正面図である。FIG. 3C is a front view of the sliding groove. 図3Dは、摺動溝部に配設された連結本体部の正面図である。FIG. 3D is a front view of the connection main body disposed in the sliding groove. 図4Aは、挿入部側保持部と操作部側保持部との相対距離を調整する方法を説明する図である。FIG. 4A is a diagram illustrating a method of adjusting the relative distance between the insertion unit side holding unit and the operation unit side holding unit. 図4Bは、図4Aの正面図である。FIG. 4B is a front view of FIG. 4A. 図5Aは、変形例における連結本体部の斜視図である。FIG. 5A is a perspective view of a connection main body portion in a modified example. 図5Bは、図5Aに示す連結本体部の分解斜視図である。FIG. 5B is an exploded perspective view of the connection main body shown in FIG. 5A. 図6Aは、第2の実施形態において、連結本体部が摺動溝部の第1の位置に配設されている状態を示す図である。FIG. 6A is a diagram illustrating a state in which the connection main body portion is disposed at the first position of the sliding groove portion in the second embodiment. 図6Bは、第2の実施形態において、連結本体部が摺動溝部の第2の位置に配設されている状態を示す図である。FIG. 6B is a diagram illustrating a state in which the connection main body portion is disposed at the second position of the sliding groove portion in the second embodiment. 図7Aは、第3の実施形態における連結本体部の斜視図である。FIG. 7A is a perspective view of a connection main body portion according to the third embodiment. 図7Bは、連結本体部の分解斜視図である。FIG. 7B is an exploded perspective view of the connection main body. 図7Cは、挿入部側保持部と操作部側保持部との相対距離を調整する方法を説明する図である。FIG. 7C is a diagram illustrating a method of adjusting the relative distance between the insertion unit side holding unit and the operation unit side holding unit. 図7Dは、図7Cの正面図である。FIG. 7D is a front view of FIG. 7C. 図8Aは、第4の実施形態における調整部の斜視図である。FIG. 8A is a perspective view of an adjustment unit according to the fourth embodiment. 図8Bは、挿入部側操作ワイヤの張力を調整する方法を説明する図である。FIG. 8B is a diagram illustrating a method of adjusting the tension of the insertion portion side operation wire. 図8Cは、挿入部側操作ワイヤの張力を調整する方法を説明する図である。FIG. 8C is a diagram illustrating a method of adjusting the tension of the insertion portion side operation wire.

以下、図面を参照して本発明の実施形態について詳細に説明する。
図1と図2Aと図2Bと図3Aと図3Bと図3Cと図3Dと図4Aと図4Bとを参照して第1の実施形態について説明する。
図1に示すように内視鏡1には、患者の体腔内等に挿入される細長い挿入部10と、挿入部10の基端部と連結し、内視鏡1を操作する操作部60とが配設されている。
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
The first embodiment will be described with reference to FIGS. 1, 2A, 2B, 3A, 3B, 3C, 3D, 4A, and 4B.
As shown in FIG. 1, the endoscope 1 includes an elongated insertion portion 10 that is inserted into a body cavity of a patient, and an operation portion 60 that is connected to a proximal end portion of the insertion portion 10 and operates the endoscope 1. Is arranged.

挿入部10は、挿入部10の先端部側から基端部側に向かって、先端硬質部21と、湾曲部23と、可撓管部25とを有している。先端硬質部21の基端部は湾曲部23の先端部と連結し、湾曲部23の基端部は可撓管部25の先端部と連結している。   The insertion portion 10 includes a distal end hard portion 21, a bending portion 23, and a flexible tube portion 25 from the distal end side to the proximal end portion side of the insertion portion 10. The proximal end portion of the distal rigid portion 21 is connected to the distal end portion of the bending portion 23, and the proximal end portion of the bending portion 23 is connected to the distal end portion of the flexible tube portion 25.

先端硬質部21は、挿入部10の先端部であり、硬い。
湾曲部23は、後述する湾曲操作部67の操作によって、例えば上下左右といった所望の方向に湾曲する。湾曲部23が湾曲することにより、先端硬質部21の位置と向きとが変わり、観察対象物が観察視野内に捉えられ、照明光が観察対象物に照明される。
可撓管部25は、所望な可撓性を有しており、外力によって曲がる。可撓管部25は、操作部60における後述する本体部61から延出されている管状部材である。
The distal end hard portion 21 is a distal end portion of the insertion portion 10 and is hard.
The bending portion 23 is bent in a desired direction such as up, down, left, and right, for example, by an operation of a bending operation unit 67 described later. When the bending portion 23 is bent, the position and orientation of the distal end hard portion 21 change, the observation object is captured in the observation field, and the illumination light is illuminated on the observation object.
The flexible tube portion 25 has a desired flexibility and is bent by an external force. The flexible tube portion 25 is a tubular member that extends from a main body portion 61 described later in the operation portion 60.

なお可撓管部25の内部と、湾曲部23の内部とには、挿入部側操作ワイヤ51が挿通している。挿入部側操作ワイヤ51の先端部は先端硬質部21と接続しており、挿入部側操作ワイヤ51は後述する湾曲操作部67の操作によって、湾曲部23を湾曲させる。挿入部側操作ワイヤ51については、後述する。   The insertion portion side operation wire 51 is inserted through the inside of the flexible tube portion 25 and the inside of the bending portion 23. The distal end portion of the insertion portion side operation wire 51 is connected to the distal end hard portion 21, and the insertion portion side operation wire 51 bends the bending portion 23 by an operation of a bending operation portion 67 described later. The insertion portion side operation wire 51 will be described later.

操作部60は、可撓管部25が延出している本体部61と、本体部61の基端部と連結し、内視鏡1を操作する操作者によって把持される把持部63と、把持部63と接続しているユニバーサルコード65とを有している。   The operation unit 60 is connected to a main body unit 61 from which the flexible tube unit 25 extends, a gripping unit 63 that is connected to the base end of the main body unit 61 and is gripped by an operator who operates the endoscope 1, And a universal cord 65 connected to the portion 63.

把持部63には、湾曲部23を湾曲操作する湾曲操作部67が配設されている。湾曲操作部67は、湾曲部23を左右に湾曲操作させる左右湾曲操作ノブ67aと、湾曲部23を上下に湾曲操作させる上下湾曲操作ノブ67bと、湾曲した湾曲部23の位置を固定する固定ノブ67cとを有している。   The grip portion 63 is provided with a bending operation portion 67 that performs a bending operation on the bending portion 23. The bending operation section 67 includes a left / right bending operation knob 67a for bending the bending section 23 left and right, a vertical bending operation knob 67b for bending the bending section 23 up and down, and a fixed knob for fixing the position of the curved bending section 23. 67c.

また、把持部63には、吸引スイッチ69aと、送気・送水スイッチ69bとを有するスイッチ部69が配設されている。スイッチ部69は、把持部63が操作者に把持された際に、操作者の手によって操作される。吸引スイッチ69aは、先端硬質部21に配設される図示しない吸引開口部から図示しない吸引チャンネルを介して、粘液や流体等を内視鏡1が吸引するときに操作される。送気・送水スイッチ69bは、先端硬質部21において図示しない撮像ユニットの観察視野を確保するために図示しない送気・送水チャンネルから流体を送気・送水するときに操作される。流体は、水や気体を含む。   The grip portion 63 is provided with a switch portion 69 having a suction switch 69a and an air / water supply switch 69b. The switch portion 69 is operated by the operator's hand when the grip portion 63 is gripped by the operator. The suction switch 69a is operated when the endoscope 1 sucks mucus, fluid, or the like from a suction opening (not shown) disposed in the distal end hard portion 21 via a suction channel (not shown). The air / water supply switch 69b is operated when air is supplied / water is supplied from an air / water supply channel (not shown) in order to secure an observation field of view of an imaging unit (not shown) in the distal end hard portion 21. The fluid includes water and gas.

また、把持部63には、内視鏡撮影用の各種ボタン71が配設されている。   In addition, various buttons 71 for endoscopic photographing are disposed on the grip portion 63.

また把持部63には、湾曲操作部67と連結し、湾曲操作部67の操作力を挿入部側操作ワイヤ51に伝達する操作部側操作ワイヤ53が配設されている。操作部側操作ワイヤ53は、把持部63を挿通し、後述する連結機構121によって挿入部側操作ワイヤ51と連結している。操作部側操作ワイヤ53については、後述する。   Further, an operation unit side operation wire 53 that is connected to the bending operation unit 67 and transmits the operation force of the bending operation unit 67 to the insertion unit side operation wire 51 is disposed in the gripping unit 63. The operation part side operation wire 53 is inserted through the grip part 63 and connected to the insertion part side operation wire 51 by a connection mechanism 121 described later. The operation unit side operation wire 53 will be described later.

ユニバーサルコード65は、図示しないビデオプロセッサや光源装置に接続する接続部65aを有している。   The universal cord 65 has a connection portion 65a that connects to a video processor or a light source device (not shown).

次に図1と図2Aとを参照して、本体部61について説明する。
本体部61は、把持部63の先端部に嵌め込まれることで把持部63と着脱自在に連結する円筒形状の筒部101と、筒部101が着脱自在に嵌め込まれ、筒部101を覆う被覆部(カバー)である折止部105とを有している。
Next, the main body 61 will be described with reference to FIGS. 1 and 2A.
The main body 61 includes a cylindrical cylindrical portion 101 that is detachably connected to the gripping portion 63 by being fitted to the distal end portion of the gripping portion 63, and a covering portion that is detachably fitted to the cylindrical portion 101 and covers the cylindrical portion 101. (Folding part 105) which is (cover).

図2Aに示すように、筒部101の外周面101cには、外部に向かって開口している開口部101bが配設されている。この開口部101bには、開口部101bを開閉する図示しない蓋が着脱自在に配設されている。蓋が開口部101bを閉じることで、筒部101は水密を確保される。蓋は、例えば開口部101bに対してスライドすることで、開口部101bを開閉する。なお蓋は、扉のように開閉することで、開口部101bを開閉してもよい。   As shown in FIG. 2A, the outer peripheral surface 101c of the cylinder portion 101 is provided with an opening portion 101b that opens toward the outside. A lid (not shown) that opens and closes the opening 101b is detachably disposed in the opening 101b. When the lid closes the opening portion 101b, the tube portion 101 is ensured to be watertight. The lid opens and closes the opening 101b by sliding with respect to the opening 101b, for example. Note that the opening 101b may be opened and closed by opening and closing the lid like a door.

このような筒部101は、アトヅヅである。また筒部101の外周面101cの基端部には、図示しないねじ溝が配設されている。このねじ溝は、筒部101が把持部63の先端部に嵌め込まれた際に、把持部63の先端部の内周面に形成されているねじ溝と係合する。筒部101の外周面101cの先端部には、図示しないねじ溝が配設されている。   Such a cylinder part 101 is an at-top. Further, a screw groove (not shown) is provided at the proximal end portion of the outer peripheral surface 101c of the cylindrical portion 101. The thread groove engages with a thread groove formed on the inner peripheral surface of the distal end portion of the gripping portion 63 when the cylindrical portion 101 is fitted into the distal end portion of the gripping portion 63. A thread groove (not shown) is provided at the tip of the outer peripheral surface 101c of the cylindrical portion 101.

筒部101の内部101eには、後述する連結機構121が配設されている。なお連結機構121は、筒部101に配設されている図示しない基板に配設されていてもよい。   A connecting mechanism 121 described later is disposed in the interior 101 e of the tube portion 101. The connecting mechanism 121 may be provided on a substrate (not shown) provided in the cylinder portion 101.

折止部105は、筒部101に対して着脱自在であり、筒部101に配設された際に、開口部101bを含む筒部101を覆う。折止部105は、弾性力を有している。   The folding part 105 is detachable with respect to the cylinder part 101, and covers the cylinder part 101 including the opening part 101b when disposed on the cylinder part 101. The folding part 105 has an elastic force.

折止部105の内周面の基端部には、図示しないねじ溝が配設されている。筒部101が折止部105に嵌め込まれた際、折止部105のこのねじ溝と筒部101の外周面101cの先端部におけるねじ溝とが係合することで、折止部105が筒部101を覆うように、折止部105は筒部101に係合される。   A screw groove (not shown) is provided at the proximal end portion of the inner peripheral surface of the folding stop portion 105. When the cylindrical portion 101 is fitted into the folding portion 105, the screw groove of the folding portion 105 and the screw groove at the distal end portion of the outer peripheral surface 101c of the cylindrical portion 101 are engaged, so that the folding portion 105 is cylindrical. The folding stop portion 105 is engaged with the cylindrical portion 101 so as to cover the portion 101.

折止部105の内周面には、折止部105と筒部101との水密を確保する図示しない水密部材が密着して配設されている。水密部材は、例えばOリングである。上述したように筒部101が折止部105に嵌め込まれた際、水密リングは、筒部101の外周面101cに密着することで、折止部105と筒部101との水密を確保する。   A watertight member (not shown) that ensures watertightness between the folding portion 105 and the cylinder portion 101 is disposed in close contact with the inner peripheral surface of the folding portion 105. The watertight member is, for example, an O-ring. As described above, when the cylindrical portion 101 is fitted into the folding portion 105, the watertight ring is in close contact with the outer peripheral surface 101 c of the cylindrical portion 101, thereby ensuring watertightness between the folding portion 105 and the cylindrical portion 101.

なお上述した蓋が配設されていない場合、図2Bに示すように筒部101が折止部105に嵌め込まれることで、折止部105は開口部101bを開閉する蓋となる。このように折止部105は、蓋を兼ねていてもよい。   In addition, when the lid | cover mentioned above is not arrange | positioned, as shown to FIG. 2B, the cylinder part 101 is engage | inserted by the folding part 105, and the folding part 105 becomes a lid | cover which opens and closes the opening part 101b. Thus, the folding stop 105 may also serve as a lid.

このような折止部105には、可撓管部25が延出している。折止部105と可撓管部25とには、水密が確保されている。   The flexible tube portion 25 extends to the folding portion 105. Watertightness is ensured in the folding part 105 and the flexible tube part 25.

上述したように、筒部101は把持部63に嵌め込まれ、筒部101には可撓管部25が延出している折止部105が嵌め込まれる。このように筒部101は、内視鏡1の挿入部10側と内視鏡1の操作部60側とを連結する連結部となっている。また本体部61と筒部101と折止部105とは、内視鏡操作部(内視鏡1の操作部60)の連結機構121に含まれる。   As described above, the tube portion 101 is fitted into the grip portion 63, and the folding portion 105 from which the flexible tube portion 25 extends is fitted into the tube portion 101. Thus, the cylinder part 101 is a connecting part that connects the insertion part 10 side of the endoscope 1 and the operation part 60 side of the endoscope 1. The main body 61, the cylinder 101, and the folding stop 105 are included in the connection mechanism 121 of the endoscope operation unit (the operation unit 60 of the endoscope 1).

次に図2Aと図3Aと図3Bと図3Cと図3Dと図4Aと図4Bとを参照して、内視鏡操作部の連結機構121について説明する。
連結機構121は、連結部である筒部101の内部101eにて、挿入部側操作ワイヤ51と操作部側操作ワイヤ53とを連結し、連結する際に、挿入部側操作ワイヤ51の張力と操作部側操作ワイヤ53の張力との少なくとも一方を調整する。本実施形態では、連結機構121は、挿入部側操作ワイヤ51の張力を調整するために、挿入部側操作ワイヤ51と操作部側操作ワイヤ53との距離を調整するように挿入部側操作ワイヤ51を弛張(牽引または弛緩)する。連結機構121は、蓋が開いた際に、図2Aに示すように、開口部101bから露出するように筒部101の内部101eに配設されている。
Next, with reference to FIGS. 2A, 3A, 3B, 3C, 3D, 4A, and 4B, the connection mechanism 121 of the endoscope operation unit will be described.
The connection mechanism 121 connects the insertion portion side operation wire 51 and the operation portion side operation wire 53 in the inside 101e of the cylinder portion 101 which is a connection portion, and when the connection portion 121 is connected, the tension of the insertion portion side operation wire 51 and At least one of the tension of the operation unit side operation wire 53 is adjusted. In the present embodiment, the coupling mechanism 121 adjusts the distance between the insertion portion side operation wire 51 and the operation portion side operation wire 53 in order to adjust the tension of the insertion portion side operation wire 51. 51 is relaxed (pulled or relaxed). As shown in FIG. 2A, the coupling mechanism 121 is disposed in the inside 101e of the cylinder portion 101 so as to be exposed from the opening portion 101b when the lid is opened.

連結機構121は、挿入部側操作ワイヤ51と操作部側操作ワイヤ53との少なくとも一方の張力を調整しつつ挿入部側操作ワイヤ51と操作部側操作ワイヤ53とを連結する図3Aに示すような連結本体部131と、連結本体部131が連結本体部131の長手軸方向に摺動するように連結本体部131をガイドし、且つ折止部105が筒部101から取り外された際に連結本体部131が開口部101bから露出するように連結本体部131を保持する図4Aに示すようなガイド部151とを有している。   As shown in FIG. 3A, the connecting mechanism 121 connects the insertion unit side operation wire 51 and the operation unit side operation wire 53 while adjusting the tension of at least one of the insertion unit side operation wire 51 and the operation unit side operation wire 53. The connecting main body part 131 and the connecting main body part 131 are guided so that the connecting main body part 131 slides in the longitudinal axis direction of the connecting main body part 131, and the connecting part is connected when the folding part 105 is removed from the cylindrical part 101. The main body 131 includes a guide 151 as shown in FIG. 4A that holds the connection main body 131 so that the main body 131 is exposed from the opening 101b.

次に図3Aと図3Bとを参照して、連結本体部131について説明する。
連結本体部131は、例えば湾曲部を上方向に湾曲させる操作部側操作ワイヤ53と、この操作部側操作ワイヤ53に対応する挿入部側操作ワイヤ51とを連結する。この点は、下方向と、右方向と、左方向とについても同様である。そのためこのような連結本体部131が例えば4個配設されている。このような連結本体部131は、筒部101の内部101eに配設されている。
Next, the connection main body 131 will be described with reference to FIGS. 3A and 3B.
The connection main body 131 connects, for example, the operation portion side operation wire 53 that bends the bending portion upward and the insertion portion side operation wire 51 corresponding to the operation portion side operation wire 53. The same applies to the downward direction, the right direction, and the left direction. For this reason, for example, four such connecting main body portions 131 are provided. Such a connection main body 131 is disposed in the interior 101 e of the tube portion 101.

連結本体部131は、挿入部側操作ワイヤ51を保持する挿入部側保持部135と、操作部側操作ワイヤ53を保持する操作部側保持部137と、挿入部側保持部135と操作部側保持部137とが配設され、挿入部側保持部135と操作部側保持部137とが配設された状態で挿入部側保持部135と操作部側保持部137との相対距離を調整し、挿入部側操作ワイヤと操作部側操作ワイヤとの少なくとも一方の張力を調整する調整部141とを有している。   The connection main body 131 includes an insertion portion side holding portion 135 that holds the insertion portion side operation wire 51, an operation portion side holding portion 137 that holds the operation portion side operation wire 53, an insertion portion side holding portion 135, and an operation portion side. The holding unit 137 is disposed, and the relative distance between the insertion unit side holding unit 135 and the operation unit side holding unit 137 is adjusted in a state where the insertion unit side holding unit 135 and the operation unit side holding unit 137 are disposed. The adjusting unit 141 adjusts the tension of at least one of the insertion unit side operation wire and the operation unit side operation wire.

挿入部側保持部135は、挿入部側操作ワイヤ51を保持する保持本体部135aと、挿入部側保持部135が調整部141に配設されるために、調整部141と係合する係合部135eとを有している。   The insertion portion side holding portion 135 is engaged with the adjustment portion 141 because the insertion portion side holding portion 135 is disposed on the adjustment portion 141 and the holding main body portion 135a holding the insertion portion side operation wire 51. Part 135e.

保持本体部135aは、挿入部側操作ワイヤ51が嵌合する円筒形状の嵌合孔135bを有している。嵌合孔135bは、挿入部側操作ワイヤ51の長手軸方向に沿って配設されている。保持本体部135aと係合部135eとは、一体である。   The holding body 135a has a cylindrical fitting hole 135b into which the insertion portion side operation wire 51 is fitted. The fitting hole 135 b is disposed along the longitudinal axis direction of the insertion portion side operation wire 51. The holding main body part 135a and the engaging part 135e are integrated.

係合部135eは、調整部141の先端部141b側が調整部141の周方向に摺動可能となるように係合する係合孔135fを有している。係合孔135fは、調整部141の長手軸方向に沿って配設されている。係合孔135fは、調整部141の先端部141b側と略同様の大きさを有している。係合孔135fはU字形状を有しており、U字形状の係合孔135fは一部に対して開口している開口部135gを有している。調整部141の先端部141b側は、開口部135g側から係合孔135fに嵌ることで、係合部135eと係合する。   The engaging portion 135e has an engaging hole 135f that engages so that the tip portion 141b side of the adjusting portion 141 can slide in the circumferential direction of the adjusting portion 141. The engagement hole 135f is disposed along the longitudinal axis direction of the adjustment portion 141. The engagement hole 135f has substantially the same size as that of the adjustment portion 141 on the tip end portion 141b side. The engaging hole 135f has a U-shape, and the U-shaped engaging hole 135f has an opening 135g that is open to a part thereof. The adjustment portion 141 has a front end portion 141b side that engages with the engagement portion 135e by fitting into the engagement hole 135f from the opening portion 135g side.

操作部側保持部137は、挿入部側保持部135と略同様の構成を有している。操作部側保持部137の保持本体部を保持本体部137a、嵌合孔を嵌合孔137b、係合部を係合部137e、係合孔を係合孔137fと称する。係合孔137fは、調整部141が挿通可能な長さを有している。   The operation unit side holding unit 137 has substantially the same configuration as the insertion unit side holding unit 135. The holding body portion of the operation unit side holding portion 137 is referred to as a holding body portion 137a, the fitting hole is referred to as a fitting hole 137b, the engaging portion is referred to as an engaging portion 137e, and the engaging hole is referred to as an engaging hole 137f. The engagement hole 137f has a length that allows the adjustment portion 141 to be inserted therethrough.

なお係合孔137fは円筒形状を有しており、係合孔137fには相対距離の調整のために調整部141の基端部141a側がねじ込まれる。そのため係合孔137fの内周面137hには、ねじ溝部137iが配設されている。   Note that the engagement hole 137f has a cylindrical shape, and the base end portion 141a side of the adjustment portion 141 is screwed into the engagement hole 137f to adjust the relative distance. Therefore, a thread groove portion 137i is provided on the inner peripheral surface 137h of the engagement hole 137f.

挿入部側保持部135の構成と操作部側保持部137の構成とは、逆であっても良い。そのため挿入部側保持部135と操作部側保持部137との一方は、相対距離の調整のために調整部141がねじ込まれる係合孔137fを有している。   The configuration of the insertion unit side holding unit 135 and the configuration of the operation unit side holding unit 137 may be reversed. Therefore, one of the insertion portion side holding portion 135 and the operation portion side holding portion 137 has an engagement hole 137f into which the adjustment portion 141 is screwed for adjusting the relative distance.

次に嵌合孔135b,137bと係合孔135f,137fと挿入部側操作ワイヤ51と操作部側操作ワイヤ53とについて説明する。
挿入部側保持部135と操作部側保持部137とが調整部141に配設された際、係合部135eと係合部137e(係合孔135fと係合孔137f)とは同一直線上、詳細には調整部141の長手軸線上に配設される。
Next, the fitting holes 135b and 137b, the engaging holes 135f and 137f, the insertion portion side operation wire 51, and the operation portion side operation wire 53 will be described.
When the insertion portion side holding portion 135 and the operation portion side holding portion 137 are disposed in the adjustment portion 141, the engaging portion 135e and the engaging portion 137e (the engaging hole 135f and the engaging hole 137f) are on the same straight line. In detail, it is disposed on the longitudinal axis of the adjusting portion 141.

同時に嵌合孔135bと嵌合孔137bとは、同一直線上に配設されることとなる。そのため挿入部側操作ワイヤ51が嵌合孔135bに嵌合し、操作部側操作ワイヤ53が嵌合孔137bに嵌合すると、挿入部側操作ワイヤ51と操作部側操作ワイヤ53とは、同一直線上に配設されることとなる。
このとき、嵌合孔135b,137bは、係合部135e,137eに対して挿入部側操作ワイヤ51(操作部側操作ワイヤ53)の長手軸方向に直交する方向にずれて配設されている。そのため嵌合孔135bと嵌合孔137bとは、調整部141の長手軸線上とは下方にずれた状態で、同一直線上に配設される。
At the same time, the fitting hole 135b and the fitting hole 137b are arranged on the same straight line. Therefore, when the insertion portion side operation wire 51 is fitted in the fitting hole 135b and the operation portion side operation wire 53 is fitted in the fitting hole 137b, the insertion portion side operation wire 51 and the operation portion side operation wire 53 are the same. It will be arranged on a straight line.
At this time, the fitting holes 135b and 137b are arranged so as to be shifted in a direction orthogonal to the longitudinal axis direction of the insertion portion side operation wire 51 (operation portion side operation wire 53) with respect to the engagement portions 135e and 137e. . Therefore, the fitting hole 135b and the fitting hole 137b are disposed on the same straight line in a state of being shifted downward from the longitudinal axis of the adjusting portion 141.

よって挿入部側保持部135によって保持されている挿入部側操作ワイヤ51と、操作部側保持部137によって保持されている操作部側操作ワイヤ53とは、同一直線上に配設され、且つ調整部141の長手軸とは異なる軸線上に配設される。詳細には、挿入部側保持部135によって保持されている挿入部側操作ワイヤ51と、操作部側保持部137によって保持されている操作部側操作ワイヤ53とは、調整部141の長手軸よりも後述する摺動溝部153の底面153b側に配設される。   Therefore, the insertion portion side operation wire 51 held by the insertion portion side holding portion 135 and the operation portion side operation wire 53 held by the operation portion side holding portion 137 are arranged on the same straight line and adjusted. The portion 141 is disposed on an axis different from the longitudinal axis. Specifically, the insertion portion side operation wire 51 held by the insertion portion side holding portion 135 and the operation portion side operation wire 53 held by the operation portion side holding portion 137 are separated from the longitudinal axis of the adjustment portion 141. Is also disposed on the bottom surface 153b side of a sliding groove 153, which will be described later.

このように嵌合孔135bと係合孔135fとは、挿入部側操作ワイヤ51と調整部141の長手軸とが同一直線上に配設されないように、挿入部側操作ワイヤ51の長手軸方向(調整部141の長手軸方向)に対して同一直線上に配設されていない。嵌合孔135bは、係合孔135fよりも摺動溝部153の底面153b側に配設される。言い換えると、挿入部側保持部135は、係合孔135fと、係合孔135fよりも摺動溝部153の底面153b側に配設される嵌合孔135bとを有している。この点は、嵌合孔137bと係合孔137fとについても同様である。   Thus, the fitting hole 135b and the engagement hole 135f are arranged in the longitudinal axis direction of the insertion portion side operation wire 51 so that the insertion portion side operation wire 51 and the longitudinal axis of the adjustment portion 141 are not arranged on the same straight line. They are not arranged on the same straight line with respect to (the longitudinal axis direction of the adjusting portion 141). The fitting hole 135b is disposed closer to the bottom surface 153b of the sliding groove 153 than the engaging hole 135f. In other words, the insertion portion side holding portion 135 has an engagement hole 135f and a fitting hole 135b disposed on the bottom surface 153b side of the sliding groove portion 153 with respect to the engagement hole 135f. This also applies to the fitting hole 137b and the engaging hole 137f.

また挿入部側操作ワイヤ51が嵌合孔135bに嵌合し、操作部側操作ワイヤ53が嵌合孔137bに嵌合した状態において、保持本体部135aは、挿入部側操作ワイヤ51の基端部51bが挿入部側操作ワイヤ51の長手軸方向において調整部141の先端部141b側から基端部141a側に向かって嵌合孔135bを貫通しないように、嵌合孔135bにて挿入部側操作ワイヤ51を保持している。また保持本体部137aは、操作部側操作ワイヤ53の先端部53aが操作部側操作ワイヤ53の長手軸方向において調整部141の基端部141a側から先端部141b側に向かって嵌合孔137bを貫通しないように、嵌合孔137bにて操作部側操作ワイヤ53を保持している。これにより、挿入部側操作ワイヤ51を保持する挿入部側保持部135と、操作部側操作ワイヤ53操作部側保持部137とが調整部141に配設された際、挿入部側操作ワイヤ51の基端部51bと操作部側操作ワイヤ53の先端部53aとが当接しない状態で、連結本体部131は挿入部側操作ワイヤ51と操作部側操作ワイヤ53とを連結する。   Further, in a state where the insertion portion side operation wire 51 is fitted in the fitting hole 135 b and the operation portion side operation wire 53 is fitted in the fitting hole 137 b, the holding main body portion 135 a is the base end of the insertion portion side operation wire 51. In the longitudinal direction of the insertion portion side operation wire 51, the fitting hole 135b prevents the portion 51b from penetrating the fitting hole 135b from the distal end portion 141b side of the adjustment portion 141 toward the proximal end portion 141a side. The operation wire 51 is held. In addition, the holding main body portion 137a has a fitting hole 137b in which the distal end portion 53a of the operation portion side operation wire 53 is directed from the proximal end portion 141a side of the adjustment portion 141 toward the distal end portion 141b side in the longitudinal axis direction of the operation portion side operation wire 53. The operation portion side operation wire 53 is held by the fitting hole 137b so as not to penetrate the through hole. Accordingly, when the insertion portion side holding portion 135 that holds the insertion portion side operation wire 51 and the operation portion side operation wire 53 and the operation portion side holding portion 137 are disposed in the adjustment portion 141, the insertion portion side operation wire 51 is arranged. The connection main body 131 connects the insertion portion side operation wire 51 and the operation portion side operation wire 53 in a state where the proximal end portion 51b of the first portion 53a does not contact the distal end portion 53a of the operation portion side operation wire 53.

なお挿入部側操作ワイヤ51は、保持本体部135aに半田によって接着されていても良い。この点は、操作部側操作ワイヤ53についても同様である。
また挿入部側操作ワイヤ51は、挿入部側操作ワイヤ51と、係合孔135f(調整部141)の長手軸とが同一直線上に配設されていなければ、係合孔135fに半田によって接着されていても良い。この点は、操作部側操作ワイヤ53についても同様である。
The insertion portion side operation wire 51 may be bonded to the holding main body portion 135a with solder. This also applies to the operation unit side operation wire 53.
Further, the insertion portion side operation wire 51 is bonded to the engagement hole 135f by solder unless the insertion portion side operation wire 51 and the longitudinal axis of the engagement hole 135f (adjustment portion 141) are arranged on the same straight line. May have been. This also applies to the operation unit side operation wire 53.

次に図3Aと図3Bとを参照して、調整部141について説明する。
調整部141は、溝部143と、防止部145と、ねじ溝部147とを有している。このような調整部141は、例えば調整ねじであり、片ねじである。
Next, the adjustment unit 141 will be described with reference to FIGS. 3A and 3B.
The adjustment unit 141 includes a groove part 143, a prevention part 145, and a thread groove part 147. Such an adjustment part 141 is an adjustment screw, for example, and is a single screw.

溝部143は、調整部141の先端部141bに配設されており、例えばドライバーなどの図示しない回転部材によって調整部141を回転させるために回転部材が嵌り込む。溝部143は、調整部141の回転を操作し、相対距離を調整し、挿入部側操作ワイヤ51の張力を調整する操作調整部でもある。   The groove portion 143 is disposed at the distal end portion 141b of the adjusting portion 141, and a rotating member is fitted into the adjusting portion 141 so that the adjusting portion 141 is rotated by a rotating member (not shown) such as a driver. The groove portion 143 is also an operation adjustment portion that operates the rotation of the adjustment portion 141 to adjust the relative distance and adjust the tension of the insertion portion side operation wire 51.

防止部145は、調整部141の先端部141b(溝部143)と調整部141の基端部141aとの間に配設されている。防止部145と溝部143とは、係合部135eよりも太い。防止部145と溝部143との間の調整部141(調整部141の先端部141b側)には、係合部135eが係合する。このとき防止部145は、先端部141b側に係合された係合部135eを溝部143とともに調整部141の軸方向において挟み込み、溝部143と共に、挿入部側保持部135が調整部141の軸方向において摺動することを防止し、挿入部側保持部135を位置決めする。防止部145は、例えば八角形状を有している。   The prevention portion 145 is disposed between the distal end portion 141b (groove portion 143) of the adjustment portion 141 and the proximal end portion 141a of the adjustment portion 141. The prevention part 145 and the groove part 143 are thicker than the engaging part 135e. The engaging portion 135e is engaged with the adjusting portion 141 (on the tip portion 141b side of the adjusting portion 141) between the prevention portion 145 and the groove portion 143. At this time, the preventing portion 145 sandwiches the engaging portion 135e engaged with the distal end portion 141b in the axial direction of the adjusting portion 141 together with the groove portion 143, and the inserting portion side holding portion 135 together with the groove portion 143 in the axial direction of the adjusting portion 141. And the insertion portion side holding portion 135 is positioned. The prevention unit 145 has, for example, an octagon shape.

ねじ溝部147は、調整部141の軸方向における防止部145と調整部141の基端部141aとの間における調整部141の外周面141cに形成されている。ねじ溝部147は、係合孔137fにねじ込まれ、内周面137hのねじ溝部137iと噛み合う。   The thread groove portion 147 is formed on the outer peripheral surface 141 c of the adjustment portion 141 between the prevention portion 145 in the axial direction of the adjustment portion 141 and the base end portion 141 a of the adjustment portion 141. The screw groove portion 147 is screwed into the engagement hole 137f and meshes with the screw groove portion 137i of the inner peripheral surface 137h.

調整部141は、係合孔137fにねじ込まれることで係合孔137fを貫通可能である。また調整部141は、係合孔137fにねじ込まれることで、挿入部側保持部135と操作部側保持部137との相対距離を調整する。なお本実施形態では、後述するように操作部側保持部137が固定されるため、調整部141が係合孔137fにねじ込まれることで、挿入部側保持部135が操作部側保持部137に対して近づくまたは離れる。これにより本実施形態では、連結機構121は、挿入部側操作ワイヤ51を弛張し、挿入部側操作ワイヤ51の張力を調整する。   The adjustment part 141 can penetrate the engagement hole 137f by being screwed into the engagement hole 137f. The adjustment unit 141 adjusts the relative distance between the insertion unit side holding unit 135 and the operation unit side holding unit 137 by being screwed into the engagement hole 137f. In this embodiment, since the operation portion side holding portion 137 is fixed as described later, the insertion portion side holding portion 135 is attached to the operation portion side holding portion 137 by screwing the adjustment portion 141 into the engagement hole 137f. Approach or leave. Thereby, in this embodiment, the connection mechanism 121 relaxes the insertion portion side operation wire 51 and adjusts the tension of the insertion portion side operation wire 51.

次に図3Cを参照して、ガイド部151について説明する。
ガイド部151は、円筒形状の筒部101に対応する形状、例えば円弧形状を有している。ガイド部151は、筒部101の内部101eに配設されるように、筒部101に固定されている。
Next, the guide unit 151 will be described with reference to FIG. 3C.
The guide portion 151 has a shape corresponding to the cylindrical tube portion 101, for example, an arc shape. The guide portion 151 is fixed to the tube portion 101 so as to be disposed in the inside 101e of the tube portion 101.

ガイド部151は、連結本体部131が嵌り込み、連結本体部131が連結本体部131の長手軸方向に摺動し、長手軸方向に直交する連結本体部131の短手軸方向において連結本体部131を位置決めする摺動溝部153を有している。摺動溝部153は、連結本体部131と同数、つまり4個配設されている。1つの摺動溝部153には、1つの連結本体部131が配設される。摺動溝部153の開口部153aは、開口部101b側に面している。摺動溝部153の開口部153a側は、連結本体部131が摺動溝部153に嵌り易いように開口部153a側から摺動溝部153の底面153b(ガイド部151の中心部)に向かって縮径しているテーパ形状を有している。   The guide unit 151 is fitted with the connection main body 131, the connection main body 131 slides in the longitudinal axis direction of the connection main body 131, and the connection main body portion is in the short axis direction of the connection main body 131 perpendicular to the longitudinal axis direction. A sliding groove 153 for positioning 131 is provided. The same number of sliding groove portions 153 as the connecting main body portions 131, that is, four sliding groove portions 153 are arranged. One connecting main body 131 is disposed in one sliding groove 153. The opening 153a of the sliding groove 153 faces the opening 101b side. The opening 153a side of the sliding groove 153 is reduced in diameter from the opening 153a toward the bottom surface 153b of the sliding groove 153 (the center of the guide 151) so that the coupling main body 131 can be easily fitted into the sliding groove 153. It has a tapered shape.

摺動溝部153は、略凹形状を有している。詳細には、摺動溝部153は、連結本体部131の外形と略同様の形状を有している。そのため連結本体部131が摺動溝部153に配設されると、摺動溝部153は挿入部側保持部135と操作部側保持部137とに当接する。このとき挿入部側保持部135と操作部側保持部137とは、摺動溝部153に当接(係合)することで、連結本体部131が連結本体部131の長手軸方向の周方向に回転しないように、摺動溝部153における連結本体部131の回転を防止する回転防止部として機能する。   The sliding groove 153 has a substantially concave shape. Specifically, the sliding groove portion 153 has a shape substantially similar to the outer shape of the connection main body portion 131. Therefore, when the connecting main body 131 is disposed in the sliding groove 153, the sliding groove 153 comes into contact with the insertion portion side holding portion 135 and the operation portion side holding portion 137. At this time, the insertion portion side holding portion 135 and the operation portion side holding portion 137 come into contact (engagement) with the sliding groove portion 153, so that the connecting main body portion 131 extends in the longitudinal direction of the connecting main body portion 131. In order not to rotate, it functions as a rotation preventing part that prevents the connection main body part 131 from rotating in the sliding groove part 153.

次に本実施形態の挿入部側操作ワイヤ51と操作部側操作ワイヤ53との連結方法について説明する。
図3Bに示すように、挿入部側操作ワイヤ51は嵌合孔135bに嵌合し、操作部側操作ワイヤ53は嵌合孔137bに嵌合する。操作部側保持部137は、摺動溝部153に配設される。
Next, a method of connecting the insertion portion side operation wire 51 and the operation portion side operation wire 53 according to the present embodiment will be described.
As shown in FIG. 3B, the insertion portion side operation wire 51 is fitted into the fitting hole 135b, and the operation portion side operation wire 53 is fitted into the fitting hole 137b. The operation part side holding part 137 is disposed in the sliding groove part 153.

図3Aに示すように、係合部135eは防止部145と溝部143との間の調整部141の先端部141b側と係合する。これにより挿入部側保持部135は、調整部141に配設される。この状態の調整部141は、摺動溝部153に配設され、さらに係合孔137fにねじ込まれる。これにより連結機構121(連結本体部131)は、挿入部側操作ワイヤ51と操作部側操作ワイヤ53とを連結する。   As shown in FIG. 3A, the engaging portion 135e is engaged with the tip portion 141b side of the adjusting portion 141 between the preventing portion 145 and the groove portion 143. Accordingly, the insertion portion side holding portion 135 is disposed in the adjustment portion 141. The adjusting portion 141 in this state is disposed in the sliding groove portion 153 and further screwed into the engaging hole 137f. Thereby, the connection mechanism 121 (the connection main body 131) connects the insertion unit side operation wire 51 and the operation unit side operation wire 53.

次に図4Aと図4Bとを参照して、本実施形態の挿入部側保持部135と操作部側保持部137との相対距離を調整する方法について説明する。この方法は、本実施形態では、挿入部側操作ワイヤ51を弛張する方法でもある。
折止部105は、筒部101から取り外される。蓋が開き、開口部101bが開く。このとき、連結機構121は、図2Aに示すように開口部101bから露出する。
Next, with reference to FIG. 4A and FIG. 4B, a method for adjusting the relative distance between the insertion portion side holding portion 135 and the operation portion side holding portion 137 of this embodiment will be described. In this embodiment, this method is also a method of relaxing the insertion portion side operation wire 51.
The folding part 105 is removed from the cylinder part 101. The lid opens and the opening 101b opens. At this time, the coupling mechanism 121 is exposed from the opening 101b as shown in FIG. 2A.

例えばドライバーなどの回転部材は、開口部101bを通じて溝部143に嵌りこむ。そして溝部143のみが摺動溝部153から露出するように、詳細には、溝部143側が基端部141aよりも開口部101b側に近づく、または溝部143側が開口部101bから内視鏡1の外部に突出するように、図4Aと図4Bとに示すように、連結本体部131は回転部材によって摺動溝部153から連結本体部131の長手軸に対する斜め方向に取り出される。このとき連結本体部131は、例えば45度傾いた状態となっている。また挿入部側保持部135の摺動溝部153側と、操作部側保持部137とは、摺動溝部153に当接している。   For example, a rotating member such as a driver fits into the groove 143 through the opening 101b. In detail, the groove portion 143 side is closer to the opening portion 101b side than the base end portion 141a, or the groove portion 143 side is outside the endoscope 1 from the opening portion 101b so that only the groove portion 143 is exposed from the sliding groove portion 153. As shown in FIGS. 4A and 4B, the connecting body 131 is taken out of the sliding groove 153 by the rotating member in an oblique direction with respect to the longitudinal axis of the connecting body 131. At this time, the connection main body 131 is inclined by 45 degrees, for example. Further, the sliding groove portion 153 side of the insertion portion side holding portion 135 and the operation portion side holding portion 137 are in contact with the sliding groove portion 153.

この状態で溝部143に嵌り込んでいる回転部材が溝部143を介して調整部141を回転することで、例えば調整部141は、係合孔137fにねじ込まれる。これにより調整部141は、例えば操作部側保持部137に向かって移動する。このとき挿入部側保持部135は、溝部143と防止部145とに挟み込まれているために、調整部141と共に操作部側保持部137に向かって移動する。これにより、挿入部側保持部135と操作部側保持部137との相対距離が調整される。そして挿入部側操作ワイヤ51が引っ張られ、挿入部側操作ワイヤ51の張力が調整される。   In this state, the rotating member fitted in the groove portion 143 rotates the adjusting portion 141 through the groove portion 143, so that, for example, the adjusting portion 141 is screwed into the engagement hole 137f. Thereby, the adjustment unit 141 moves toward the operation unit side holding unit 137, for example. At this time, since the insertion portion side holding portion 135 is sandwiched between the groove portion 143 and the prevention portion 145, the insertion portion side holding portion 135 moves toward the operation portion side holding portion 137 together with the adjustment portion 141. Thereby, the relative distance between the insertion portion side holding portion 135 and the operation portion side holding portion 137 is adjusted. Then, the insertion portion side operation wire 51 is pulled, and the tension of the insertion portion side operation wire 51 is adjusted.

なお調整部141が回転する際、図4Aと図4Bとに示すように、挿入部側保持部135と操作部側保持部137とは摺動溝部153に当接しているため、挿入部側保持部135と操作部側保持部137と挿入部側操作ワイヤ51と操作部側操作ワイヤ53とは調整部141の回転に伴うとも回りを防止されている。   When the adjusting portion 141 rotates, as shown in FIGS. 4A and 4B, the insertion portion side holding portion 135 and the operation portion side holding portion 137 are in contact with the sliding groove portion 153. The part 135, the operation part side holding part 137, the insertion part side operation wire 51, and the operation part side operation wire 53 are prevented from rotating as the adjustment part 141 rotates.

この後、回転部材によって、連結本体部131(溝部143側)は、テーパ形状の開口部153aに沿って摺動溝部153に配設される。このとき、摺動溝部153は、短手軸方向において連結本体部131を位置決めする。また挿入部側保持部135と操作部側保持部137と防止部145とは、摺動溝部153に当接(係合)し、連結本体部131が連結本体部131の長手軸方向の周方向に回転しないように、摺動溝部153における連結本体部131の回転を防止する。   Thereafter, the connecting main body 131 (groove 143 side) is disposed in the sliding groove 153 along the tapered opening 153a by the rotating member. At this time, the sliding groove portion 153 positions the connection main body portion 131 in the short axis direction. Further, the insertion portion side holding portion 135, the operation portion side holding portion 137, and the prevention portion 145 come into contact (engagement) with the sliding groove portion 153, and the connection main body portion 131 is circumferential in the longitudinal axis direction of the connection main body portion 131. The connection main body 131 is prevented from rotating in the sliding groove 153 so as not to rotate.

そして蓋が閉じられ、折止部105は筒部101を覆うように筒部101に配設される。   Then, the lid is closed, and the folding stop portion 105 is disposed on the tube portion 101 so as to cover the tube portion 101.

このように本実施形態では、連結本体部131によって、把持部63から本体部61全体を取り外すことなく挿入部側操作ワイヤ51と操作部側操作ワイヤ53とを容易に連結することができる。また本実施形態では、開口部101bと調整部141とによって、把持部63から本体部61全体を取り外すことなく挿入部側保持部135と操作部側保持部137との相対距離を調整することができ、開口部101bを介して挿入部側操作ワイヤ51の張力を容易に調整することができる。   As described above, in the present embodiment, the connection main body portion 131 can easily connect the insertion portion side operation wire 51 and the operation portion side operation wire 53 without removing the entire main body portion 61 from the grip portion 63. In the present embodiment, the opening 101b and the adjustment unit 141 can adjust the relative distance between the insertion unit side holding unit 135 and the operation unit side holding unit 137 without removing the entire main body unit 61 from the gripping unit 63. It is possible to easily adjust the tension of the insertion portion side operation wire 51 through the opening 101b.

また本実施形態では、開口部101bを介して連結本体部131を傾けることで、開口部101b側、または溝部143を開口部101bから突出させた状態で、張力を調整できる。そのため、本実施形態では、把持部63と本体部61との内部にて調整のための作業スペースを確保する必要は無く、把持部63と本体部61とを大型化する必要はなく、把持部63と本体部61とを小型にすることができる。   In the present embodiment, the connection main body 131 is tilted through the opening 101b, whereby the tension can be adjusted in the state where the opening 101b side or the groove 143 protrudes from the opening 101b. Therefore, in the present embodiment, it is not necessary to secure a working space for adjustment inside the grip portion 63 and the main body portion 61, and it is not necessary to increase the size of the grip portion 63 and the main body portion 61. 63 and the main-body part 61 can be reduced in size.

また本実施形態では、調整部141を係合孔137fにねじ込むことで、容易且つ短時間に、挿入部側操作ワイヤ51と操作部側操作ワイヤ53とを連結でき、挿入部側操作ワイヤ51の張力を調整することができる。また本実施形態では、調整部141を係合孔137fにねじ込むことで、連結機構121を小型にすることができる。   In the present embodiment, the insertion portion side operation wire 51 and the operation portion side operation wire 53 can be connected easily and in a short time by screwing the adjustment portion 141 into the engagement hole 137f. The tension can be adjusted. Moreover, in this embodiment, the connection mechanism 121 can be reduced in size by screwing the adjustment part 141 in the engagement hole 137f.

また本実施形態では、連結本体部131が開口部101bから露出するようにガイド部151が連結本体部131を保持し、このガイド部151を筒部101の内部101eに配設することで、開口部101bを介して挿入部側操作ワイヤ51の張力を容易に調整することができる。   Further, in the present embodiment, the guide portion 151 holds the connection main body portion 131 so that the connection main body portion 131 is exposed from the opening portion 101b, and the guide portion 151 is disposed in the inside 101e of the cylinder portion 101, thereby opening the opening portion. The tension of the insertion portion side operation wire 51 can be easily adjusted via the portion 101b.

また本実施形態では、上記のように張力を調整するために、把持部63の着脱作業と、水密確保作業とを不要にでき、連結の張力の調整のための手間と作業時間を抑えることができる。   Further, in the present embodiment, since the tension is adjusted as described above, the attaching / detaching work of the gripping part 63 and the work for securing the watertightness can be made unnecessary, and the labor and time for adjusting the connection tension can be reduced. it can.

また本実施形態では、湾曲操作が行われた際に、連結本体部131が摺動溝部153を長手軸方向に摺動することで、操作性を向上させることができる。また本実施形態では、摺動溝部153が短手軸方向において連結本体部131を位置決めすることで、短手軸方向における連結本体部131の位置ずれを防止でき、湾曲操作の操作性を向上させることができる。   Further, in the present embodiment, when the bending operation is performed, the operability can be improved by the connecting main body 131 sliding on the sliding groove 153 in the longitudinal axis direction. Further, in the present embodiment, the sliding groove portion 153 positions the connection main body portion 131 in the short axis direction, thereby preventing the displacement of the connection main body portion 131 in the short axis direction and improving the operability of the bending operation. be able to.

また本実施形態では、開口部153a側をテーパ形状にすることで、張力を調整した後の連結部材をスムーズに摺動溝部153に配設することができる。   Moreover, in this embodiment, the connection member after adjusting tension can be smoothly arrange | positioned in the sliding groove part 153 by making the opening part 153a side into a taper shape.

また本実施形態では、挿入部側保持部135と操作部側保持部137とが摺動溝部153に係合することで、連結本体部131が摺動溝部153に配設され、湾曲操作の際に、摺動溝部153における連結本体部131の回転を防止できる。   In this embodiment, the insertion portion side holding portion 135 and the operation portion side holding portion 137 are engaged with the sliding groove portion 153, so that the coupling main body portion 131 is disposed in the sliding groove portion 153, and the bending operation is performed. In addition, the rotation of the connecting body 131 in the sliding groove 153 can be prevented.

また本実施形態では、張力を調整するために調整部141が回転する際に、挿入部側保持部135の摺動溝部153側と操作部側保持部137とが摺動溝部153に当接することで、挿入部側保持部135と操作部側保持部137と挿入部側操作ワイヤ51と操作部側操作ワイヤ53とは調整部141の回転に伴うとも回りを防止できる。これにより本実施形態では、張力をスムーズに調整することができる。   In the present embodiment, when the adjusting portion 141 rotates to adjust the tension, the sliding groove portion 153 side and the operation portion side holding portion 137 of the insertion portion side holding portion 135 abut on the sliding groove portion 153. Thus, the insertion portion side holding portion 135, the operation portion side holding portion 137, the insertion portion side operation wire 51, and the operation portion side operation wire 53 can be prevented from rotating as the adjustment portion 141 rotates. Thereby, in this embodiment, tension can be adjusted smoothly.

また本実施形態では、挿入部側保持部135によって保持されている挿入部側操作ワイヤ51と、操作部側保持部137によって保持されている操作部側操作ワイヤ53とを、調整部141の長手軸よりも摺動溝部153の底面153b側に配設している。これにより本実施形態では、連結本体部131を傾けた際に、例えば挿入部側操作ワイヤ51が回転部材の邪魔になることを防止できる。また本実施形態では、連結本体部131の傾きに伴う挿入部側操作ワイヤ51の傾きを最小限にすることができ、張力をスムーズに調整することができる。   In the present embodiment, the insertion unit side operation wire 51 held by the insertion unit side holding unit 135 and the operation unit side operation wire 53 held by the operation unit side holding unit 137 are connected to the longitudinal direction of the adjustment unit 141. The sliding groove 153 is disposed closer to the bottom surface 153b than the shaft. Thereby, in this embodiment, when the connection main-body part 131 is inclined, it can prevent that the insertion part side operation wire 51 obstructs a rotation member, for example. Moreover, in this embodiment, the inclination of the insertion part side operation wire 51 accompanying the inclination of the connection main-body part 131 can be minimized, and tension | tensile_strength can be adjusted smoothly.

なお本実施形態の係合孔137fは調整部141が挿通可能な長さを有しているが、これに限定される必要はない。例えば、図5Aと図5Bとに示すように、係合孔137fは調整部141が挿入可能な長さを有していてもよい。またこのとき、図5Aに示すように、操作部側保持部137は、操作部側保持部137の先端部137lに、保持本体部135aを有していても良い。この保持本体部135aは、嵌合孔135bを挿通した挿入部側操作ワイヤ51が挿通する挿通孔137kを有している。また挿入部側操作ワイヤ51は、基端部51bに挿通孔137kからの抜けを防止する防止部51dを有している。   In addition, although the engagement hole 137f of this embodiment has the length which the adjustment part 141 can penetrate, it does not need to be limited to this. For example, as shown in FIGS. 5A and 5B, the engagement hole 137f may have a length that allows the adjustment unit 141 to be inserted. At this time, as shown in FIG. 5A, the operation portion side holding portion 137 may have a holding main body portion 135 a at the distal end portion 137 l of the operation portion side holding portion 137. The holding main body portion 135a has an insertion hole 137k through which the insertion portion side operation wire 51 inserted through the fitting hole 135b is inserted. Further, the insertion portion side operation wire 51 has a prevention portion 51d that prevents the base end portion 51b from coming off from the insertion hole 137k.

これにより挿入部側操作ワイヤ51は操作部側保持部137によっても保持されているために、調整部141をスムーズに係合孔137fに係合することができる。また防止部51dによって、調整部141が係合孔137fから抜かれる際に、挿入部側操作ワイヤ51が操作部側保持部137から外れることを防止することで、調整部141が係合孔137から外れることを防止できる。   Thereby, since the insertion portion side operation wire 51 is also held by the operation portion side holding portion 137, the adjustment portion 141 can be smoothly engaged with the engagement hole 137f. Further, when the adjusting portion 141 is pulled out from the engaging hole 137f by the preventing portion 51d, the adjusting portion 141 is prevented from coming off from the operating portion side holding portion 137 when the adjusting portion 141 is pulled out from the engaging hole 137f. Can be prevented from coming off.

次に本発明に関わる第2の実施形態について図6Aと図6Bとを参照して説明する。
第1の実施形態では、連結本体部131は斜め方向に取り出されたが、これに限定する必要はない。本実施形態では、溝部143が摺動溝部153から突出する状態と摺動溝部153に配設される状態とのいずれかとなるように、連結本体部131は摺動溝部153において挿入部側操作ワイヤ51の長手軸方向を中心に回動可能である。
Next, a second embodiment according to the present invention will be described with reference to FIGS. 6A and 6B.
In the first embodiment, the connection main body 131 is taken out in an oblique direction, but it is not necessary to limit to this. In the present embodiment, the connecting main body 131 is connected to the insertion portion side operation wire in the sliding groove 153 so that the groove 143 protrudes from the sliding groove 153 or is disposed in the sliding groove 153. 51 is rotatable about the longitudinal axis direction.

詳細には、連結本体部131は、調整部141が挿入部側操作ワイヤ51と操作部側操作ワイヤ53との側方且つ摺動溝部153内に配設された状態で連結本体部131が摺動溝部153内を摺動可能な図6Aに示すような第1の位置と、調整部141(溝部143)が摺動溝部153から突出し且つ挿入部側操作ワイヤ51と操作部側操作ワイヤ53との上方に配設された状態で調整部141が相対距離を調整する図6Bに示すような第2の位置とを選択可能である。   Specifically, the connecting main body 131 is slid in a state in which the adjusting portion 141 is disposed on the side of the insertion portion side operation wire 51 and the operation portion side operation wire 53 and in the sliding groove portion 153. The first position as shown in FIG. 6A that can slide in the moving groove portion 153, the adjustment portion 141 (groove portion 143) protrudes from the sliding groove portion 153, and the insertion portion side operation wire 51, the operation portion side operation wire 53, and the like. It is possible to select the second position as shown in FIG. 6B where the adjustment unit 141 adjusts the relative distance in a state of being disposed above the position.

内視鏡1が使用される際、連結本体部131は図6Aに示すように摺動溝部153に横たわるように配設されている。このとき第1の実施形態と同様に、摺動溝部153は、連結本体部131の短手軸方向において連結本体部131を位置決めしている。また、挿入部側保持部135と操作部側保持部137とは、摺動溝部153における連結本体部131の回転位置を規制している。   When the endoscope 1 is used, the connection main body 131 is disposed so as to lie on the sliding groove 153 as shown in FIG. 6A. At this time, similarly to the first embodiment, the sliding groove portion 153 positions the connection main body portion 131 in the short axis direction of the connection main body portion 131. Further, the insertion portion side holding portion 135 and the operation portion side holding portion 137 regulate the rotation position of the connection main body portion 131 in the sliding groove portion 153.

また張力が調整される際、連結本体部131は、挿入部側操作ワイヤ51の長手軸方向を中心に90度回動し、図6Bに示すように調整部141(溝部143)が摺動溝部153から突出するように、起き上がる。   When the tension is adjusted, the connection main body 131 rotates 90 degrees around the longitudinal axis direction of the insertion portion side operation wire 51, and the adjustment portion 141 (groove portion 143) is a sliding groove portion as shown in FIG. 6B. I get up to protrude from 153.

これにより本実施形態では、連結本体部131が第2の位置に配設されることで、溝部143が摺動溝部153から突出し、第1の実施形態のように挿入部側操作ワイヤ51と操作部側操作ワイヤ53とを傾かせることはなく、張力を調整できる。よって本実施形態では、挿入部側操作ワイヤ51と操作部側操作ワイヤ53との経路長に影響されることなく、張力を調整できる。   As a result, in the present embodiment, the coupling main body 131 is disposed at the second position, so that the groove 143 protrudes from the sliding groove 153, and the insertion portion side operation wire 51 and the operation are operated as in the first embodiment. The tension can be adjusted without tilting the part-side operation wire 53. Therefore, in this embodiment, the tension can be adjusted without being affected by the path length between the insertion portion side operation wire 51 and the operation portion side operation wire 53.

次に本発明に関わる第3の実施形態について図7Aと図7Bと図7Cと図7Dとを参照して説明する。
本実施形態の挿入部側保持部135は、操作部側保持部137と略同様の形状を有している。そのため係合孔135fは、係合孔137fと同様に調整部141が挿通可能な長さを有している。また本実施形態の係合孔135fは、円筒形状を有しており、係合孔137fには相対距離の調整のために調整部141の先端部141b側がねじ込まれる。そのため係合孔135fの内周面135hには、ねじ溝部135iが配設されている。
Next, a third embodiment according to the present invention will be described with reference to FIGS. 7A, 7B, 7C, and 7D.
The insertion portion side holding portion 135 of the present embodiment has a shape that is substantially the same as that of the operation portion side holding portion 137. Therefore, the engagement hole 135f has a length that allows the adjustment portion 141 to be inserted in the same manner as the engagement hole 137f. In addition, the engagement hole 135f of the present embodiment has a cylindrical shape, and the front end portion 141b side of the adjustment portion 141 is screwed into the engagement hole 137f in order to adjust the relative distance. Therefore, a thread groove portion 135i is disposed on the inner peripheral surface 135h of the engagement hole 135f.

本実施形態の調整部141は、操作調整部149と、ねじ溝部147とを有している。本実施形態の調整部141は、例えば両ねじである。   The adjusting unit 141 according to the present embodiment includes an operation adjusting unit 149 and a thread groove portion 147. The adjustment unit 141 of the present embodiment is, for example, a double screw.

操作調整部149は、調整部141の長手軸方向における略中間部に配設されている。本実施形態の操作調整部149は、調整部141の回転を操作し、相対距離を調整し、挿入部側操作ワイヤ51の張力と操作部側操作ワイヤ53の張力とを調整する。   The operation adjustment unit 149 is disposed at a substantially intermediate portion in the longitudinal axis direction of the adjustment unit 141. The operation adjustment unit 149 of this embodiment operates the rotation of the adjustment unit 141 to adjust the relative distance, and adjusts the tension of the insertion unit side operation wire 51 and the tension of the operation unit side operation wire 53.

ねじ溝部147は、操作調整部149よりも先端部141b側と基端部147a側との外周面141cに配設されている。先端部141b側のねじ溝部147は、係合孔135fにねじ込まれ、内周面135hのねじ溝部135iと噛み合う。また基端部141a側のねじ溝部147は、係合孔137fにねじ込まれ、内周面137hのねじ溝部137iと噛み合う。   The thread groove portion 147 is disposed on the outer peripheral surface 141c on the distal end portion 141b side and the proximal end portion 147a side with respect to the operation adjusting portion 149. The screw groove portion 147 on the distal end portion 141b side is screwed into the engagement hole 135f and meshes with the screw groove portion 135i of the inner peripheral surface 135h. The screw groove portion 147 on the base end portion 141a side is screwed into the engagement hole 137f and meshes with the screw groove portion 137i on the inner peripheral surface 137h.

次に本実施形態の挿入部側保持部135と操作部側保持部137との相対距離を調整する方法について説明する。この方法は、本実施形態では、挿入部側操作ワイヤ51と操作部側操作ワイヤ53とを弛張する方法でもある。
折止部105は、筒部101から取り外される。蓋が開き、開口部101bが開く。このとき、連結機構121は、開口部101bから露出する。
Next, a method for adjusting the relative distance between the insertion portion side holding portion 135 and the operation portion side holding portion 137 according to the present embodiment will be described. In this embodiment, this method is also a method of relaxing the insertion portion side operation wire 51 and the operation portion side operation wire 53.
The folding part 105 is removed from the cylinder part 101. The lid opens and the opening 101b opens. At this time, the coupling mechanism 121 is exposed from the opening 101b.

操作調整部149が調整者によって保持され、図7Cに示すように連結本体部131全体が持ち上げられる。このとき少なくとも操作調整部149は、摺動溝部153から突出し、さらに開口部101b側に近づく、または開口部101bから内視鏡1の外部に突出する。この状態で操作調整部149が回転することで、調整部141は係合孔135f,137fにねじ込まれる。これにより、挿入部側保持部135と操作部側保持部137とは互いに近づきまたは離れ、これらの相対距離は調整される。そして挿入部側操作ワイヤ51と操作部側操作ワイヤ53とが弛張され、挿入部側操作ワイヤ51の張力と操作部側操作ワイヤ53の張力とが調整される。   The operation adjustment unit 149 is held by the adjuster, and the entire connection main body 131 is lifted as shown in FIG. 7C. At this time, at least the operation adjusting unit 149 protrudes from the sliding groove 153 and further approaches the opening 101b side or protrudes from the opening 101b to the outside of the endoscope 1. In this state, when the operation adjustment unit 149 rotates, the adjustment unit 141 is screwed into the engagement holes 135f and 137f. Thereby, the insertion part side holding part 135 and the operation part side holding part 137 approach or separate from each other, and the relative distance between them is adjusted. Then, the insertion portion side operation wire 51 and the operation portion side operation wire 53 are relaxed, and the tension of the insertion portion side operation wire 51 and the tension of the operation portion side operation wire 53 are adjusted.

このように本実施形態では、調整部141を両ねじとしても第1の実施形態と同様の効果を得ることができる。また本実施形態では、挿入部側操作ワイヤ51の張力と操作部側操作ワイヤ53の張力とを同時に調整することができる。   As described above, in the present embodiment, the same effect as that of the first embodiment can be obtained even if the adjusting portion 141 is a double screw. Moreover, in this embodiment, the tension | tensile_strength of the insertion part side operation wire 51 and the tension | tensile_strength of the operation part side operation wire 53 can be adjusted simultaneously.

次に本発明に関わる第4の実施形態について図8Aと図8Bと図8Cとを参照して説明する。
本実施形態の調整部141は、溝部143と防止部145とねじ溝部147とは別体の第1の部材161と第2の部材163とをさらに有している。第1の部材161と第2の部材163とは、例えば角柱形状を有しており、挿入部側操作ワイヤ51の軸方向に沿って例えば摺動溝部153に配設されている。第1の部材161と第2の部材163とは、同じ構成を有している。
Next, a fourth embodiment according to the present invention will be described with reference to FIGS. 8A, 8B, and 8C.
The adjustment unit 141 according to the present embodiment further includes a first member 161 and a second member 163 that are separate from the groove portion 143, the prevention portion 145, and the screw groove portion 147. The first member 161 and the second member 163 have, for example, a prismatic shape, and are disposed, for example, in the sliding groove portion 153 along the axial direction of the insertion portion side operation wire 51. The first member 161 and the second member 163 have the same configuration.

第1の部材161は、摺動溝部153の深さ方向において第2の部材163に載置されるように、例えばビスなどの図示しない連結部材によって第2の部材163と連結する。この第1の部材161と第2の部材163との間隔は、この連結部材によって、調整されている。   The first member 161 is connected to the second member 163 by a connecting member (not shown) such as a screw so that the first member 161 is placed on the second member 163 in the depth direction of the sliding groove 153. The distance between the first member 161 and the second member 163 is adjusted by the connecting member.

第1の部材161は、挿入部側操作ワイヤ51の軸方向に沿って配設されている凸部161aを側面161bに有している。凸部161aの先端部161cは、半円形状を有しており、第2の部材163に対向する第1の円柱部材の端面161dよりも突出している。以下において、第2の部材163の凸部を凸部163aとする。   The 1st member 161 has the convex part 161a arrange | positioned along the axial direction of the insertion part side operation wire 51 in the side surface 161b. The tip portion 161 c of the convex portion 161 a has a semicircular shape, and protrudes from the end surface 161 d of the first columnar member that faces the second member 163. Hereinafter, the convex portion of the second member 163 is referred to as a convex portion 163a.

図8Bに示すように、第1の部材161が第2の部材163と連結した際、凸部161aと凸部163aとは、挿入部側操作ワイヤ51の軸方向に沿って互い違いとなるように配設されている。つまり凸部161aは凸部163aに隣り合う。   As shown in FIG. 8B, when the first member 161 is connected to the second member 163, the convex portions 161 a and the convex portions 163 a are staggered along the axial direction of the insertion portion side operation wire 51. It is arranged. That is, the convex portion 161a is adjacent to the convex portion 163a.

また第1の部材161が第2の部材163と連結した際、凸部161aと凸部163aとは、互い違いに配設されて挿入部側操作ワイヤ51を挟み込む。この時、第1の部材161と第2の部材163との間隔が調整されることで、凸部161aと凸部163aとは挿入部側操作ワイヤ51の軸方向において重なり合う。これにより挿入部側操作ワイヤ51は、凸部161aと凸部163aとの外形に沿って配設され、蛇行する。そして、挿入部側操作ワイヤ51の経路長が変化し、挿入部側操作ワイヤ51は引っ張られ、挿入部側操作ワイヤ51の張力が調整される。   In addition, when the first member 161 is connected to the second member 163, the convex portions 161a and the convex portions 163a are alternately arranged so as to sandwich the insertion portion side operation wire 51 therebetween. At this time, by adjusting the distance between the first member 161 and the second member 163, the convex portion 161 a and the convex portion 163 a overlap in the axial direction of the insertion portion side operation wire 51. Thereby, the insertion portion side operation wire 51 is disposed along the outer shape of the convex portion 161a and the convex portion 163a and meanders. Then, the path length of the insertion portion side operation wire 51 changes, the insertion portion side operation wire 51 is pulled, and the tension of the insertion portion side operation wire 51 is adjusted.

なお図8Cに示すように、第1の部材161と第2の部材163との間隔が狭いほど、挿入部側操作ワイヤ51は大きく蛇行し、挿入部側操作ワイヤ51の経路長はより増加し、挿入部側操作ワイヤ51はより強く引っ張られる。   As shown in FIG. 8C, as the distance between the first member 161 and the second member 163 is narrower, the insertion portion side operation wire 51 meanders more and the path length of the insertion portion side operation wire 51 is further increased. The insertion portion side operation wire 51 is pulled more strongly.

このように本実施形態では、挿入部側操作ワイヤ51を凸部161a,163aにて挟み込ませることで、挿入部側操作ワイヤ51の張力を容易に調整することができる。   Thus, in this embodiment, the tension | tensile_strength of the insertion part side operation wire 51 can be easily adjusted by pinching the insertion part side operation wire 51 by the convex parts 161a and 163a.

また本実施形態では、第1の部材161と第2の部材163との間隔を連結部材によって調整することで、挿入部側操作ワイヤ51の経路長を容易に調整でき、挿入部側操作ワイヤ51の張力を容易に調整できる。   Moreover, in this embodiment, the path length of the insertion part side operation wire 51 can be easily adjusted by adjusting the space | interval of the 1st member 161 and the 2nd member 163 with a connection member, and the insertion part side operation wire 51 is adjusted. Can be easily adjusted.

なお本実施形態では、挿入部側操作ワイヤ51について説明したが、操作部側操作ワイヤ53についても同様である。   In the present embodiment, the insertion unit side operation wire 51 has been described, but the same applies to the operation unit side operation wire 53.

本発明は、上記実施形態そのままに限定されるものではなく、実施段階ではその要旨を逸脱しない範囲で構成要素を変形して具体化できる。また、上記実施形態に開示されている複数の構成要素の適宜な組み合せにより種々の発明を形成できる。   The present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Further, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment.

1…内視鏡、10…挿入部、21…先端硬質部、23…湾曲部、25…可撓管部、51…挿入部側操作ワイヤ、53…操作部側操作ワイヤ、101…筒部、101c…外周面、101b…開口部、101e…内部、105…折止部、121…連結機構、131…連結本体部、135…挿入部側保持部、135a…保持本体部、135b…嵌合孔、135e…係合部、135f…係合孔、135g…開口部、137…操作部側保持部、137a…保持本体部、137b…嵌合孔、137e…係合部、137f…係合孔、141…調整部、143…溝部、145…防止部、147…溝部、151…ガイド部、153…摺動溝部、153b…底面、153a…開口部。   DESCRIPTION OF SYMBOLS 1 ... Endoscope, 10 ... Insertion part, 21 ... Hard tip part, 23 ... Bending part, 25 ... Flexible pipe part, 51 ... Insertion part side operation wire, 53 ... Operation part side operation wire, 101 ... Tube part, 101c ... Outer peripheral surface, 101b ... Opening part, 101e ... Inside, 105 ... Clamping part, 121 ... Connection mechanism, 131 ... Connection main body part, 135 ... Insertion part side holding part, 135a ... Holding main body part, 135b ... Fitting hole 135e ... engagement part, 135f ... engagement hole, 135g ... opening part, 137 ... operation part side holding part, 137a ... holding main body part, 137b ... fitting hole, 137e ... engagement part, 137f ... engagement hole, 141 ... Adjusting part, 143 ... groove part, 145 ... preventing part, 147 ... groove part, 151 ... guide part, 153 ... sliding groove part, 153b ... bottom face, 153a ... opening part.

Claims (10)

内視鏡の挿入部側と前記内視鏡の操作部側とを連結する連結部の内部にて、前記挿入部側の挿入部側操作ワイヤと、前記操作部側の操作部側操作ワイヤとを連結する内視鏡操作部の連結機構であって、
前記連結部の外周面に形成され、外部に向かって開口している開口部と、
前記連結部に対して着脱自在であり、前記連結部に配設された際に、前記開口部を含む前記連結部を覆う被覆部と、
前記連結部の内部に配設され、前記挿入部側操作ワイヤと前記操作部側操作ワイヤとの少なくとも一方の張力を調整しつつ前記挿入部側操作ワイヤと前記操作部側操作ワイヤとを連結する連結本体部と、
前記連結部の内部に配設され、前記連結本体部が前記連結本体部の長手軸方向に摺動するように前記連結本体部をガイドし、且つ前記被覆部が前記連結部から取り外された際に前記連結本体部が前記開口部から露出するように前記連結本体部を保持するガイド部と、
を具備することを特徴とする内視鏡操作部の連結機構。
Inside the connecting portion that connects the insertion portion side of the endoscope and the operation portion side of the endoscope, the insertion portion side operation wire on the insertion portion side, the operation portion side operation wire on the operation portion side, A connection mechanism of an endoscope operation unit for connecting
An opening formed on the outer peripheral surface of the connecting portion and opening toward the outside;
A covering portion that is detachable with respect to the connecting portion and covers the connecting portion including the opening when disposed in the connecting portion;
The insertion portion side operation wire and the operation portion side operation wire are connected while adjusting the tension of at least one of the insertion portion side operation wire and the operation portion side operation wire. A connecting body part;
When the connecting body portion is disposed inside the connecting portion, guides the connecting body portion so that the connecting body portion slides in the longitudinal axis direction of the connecting body portion, and the covering portion is removed from the connecting portion. A guide part for holding the connection body part so that the connection body part is exposed from the opening;
A connection mechanism for an endoscope operation unit.
前記連結本体部は、
前記挿入部側操作ワイヤを保持する挿入部側保持部と、
前記操作部側操作ワイヤを保持する操作部側保持部と、
前記挿入部側保持部と前記操作部側保持部とが配設され、前記挿入部側保持部と前記操作部側保持部とが配設された状態で前記挿入部側保持部と前記操作部側保持部との相対距離を調整して、前記挿入部側操作ワイヤと前記操作部側操作ワイヤとの少なくとも一方の張力を調整する調整部と、
を有していることを特徴とする請求項1に記載の内視鏡操作部の連結機構。
The connecting body part is
An insertion portion side holding portion for holding the insertion portion side operation wire;
An operation unit side holding unit for holding the operation unit side operation wire;
The insertion portion side holding portion and the operation portion side holding portion are arranged, and the insertion portion side holding portion and the operation portion are arranged in a state where the insertion portion side holding portion and the operation portion side holding portion are arranged. An adjustment unit that adjusts the relative distance to the side holding unit to adjust the tension of at least one of the insertion unit side operation wire and the operation unit side operation wire;
The connection mechanism of the endoscope operation unit according to claim 1, wherein
前記挿入部側保持部と前記操作部側保持部との少なくとも一方は、前記相対距離の調整のために前記調整部がねじ込まれる係合孔を有していることを特徴とする請求項2に記載の内視鏡操作部の連結機構。   The at least one of the insertion part side holding part and the operation part side holding part has an engagement hole into which the adjustment part is screwed for adjusting the relative distance. The connecting mechanism of the endoscope operation section described. 前記ガイド部は、前記連結本体部が嵌り込み、前記連結本体部が前記連結本体部の長手軸方向に摺動し、前記長手軸方向に直交する前記連結本体部の短手軸方向において前記連結本体部を位置決めする摺動溝部を有していることを特徴とする請求項3に記載の内視鏡操作部の連結機構。   The guide part is fitted in the connecting body part, the connecting body part slides in the longitudinal axis direction of the connecting body part, and the connecting part is connected in the short axis direction of the connecting body part perpendicular to the longitudinal axis direction. 4. The connecting mechanism for an endoscope operation unit according to claim 3, further comprising a sliding groove for positioning the main body. 前記摺動溝部は、前記摺動溝部の底面に向かって縮径しているテーパ形状を有していることを特徴とする請求項4に記載の内視鏡操作部の連結機構。   The endoscope operating unit coupling mechanism according to claim 4, wherein the sliding groove portion has a tapered shape that is reduced in diameter toward a bottom surface of the sliding groove portion. 前記挿入部側保持部と前記操作部側保持部とは、前記摺動溝部に係合することで、前記摺動溝部における前記連結本体部の回転を防止することを特徴とする請求項5に記載の内視鏡操作部の連結機構。   The said insertion part side holding | maintenance part and the said operation part side holding | maintenance part prevent rotation of the said connection main-body part in the said sliding groove part by engaging with the said sliding groove part. The connecting mechanism of the endoscope operation section described. 前記挿入部側保持部によって保持されている前記挿入部側操作ワイヤと、前記操作部側保持部によって保持されている前記操作部側操作ワイヤとは、同一直線上に配設され、且つ前記調整部の長手軸とは異なる軸線上に配設されていることを特徴とする請求項2乃至請求項6のいずれかに記載の内視鏡操作部の連結機構。   The insertion portion side operation wire held by the insertion portion side holding portion and the operation portion side operation wire held by the operation portion side holding portion are arranged on the same straight line and are adjusted. The connection mechanism of the endoscope operation part according to any one of claims 2 to 6, wherein the connection mechanism is disposed on an axis different from the longitudinal axis of the part. 前記挿入部側保持部によって保持されている前記挿入部側操作ワイヤと、前記操作部側保持部によって保持されている前記操作部側操作ワイヤとは、前記調整部の長手軸よりも前記摺動溝部の底面側に配設されることを特徴とする請求項7に記載の内視鏡操作部の連結機構。   The insertion portion side operation wire held by the insertion portion side holding portion and the operation portion side operation wire held by the operation portion side holding portion slide more than the longitudinal axis of the adjustment portion. 8. The connecting mechanism for an endoscope operation portion according to claim 7, wherein the connection mechanism is disposed on a bottom surface side of the groove portion. 前記調整部が前記挿入部側操作ワイヤと前記操作部側操作ワイヤとの側方に配設された状態で前記連結本体部が前記ガイド部内を摺動可能な第1の位置と、前記調整部が前記ガイド部から突出し且つ前記挿入部側操作ワイヤと前記操作部側操作ワイヤとの上方に配設された状態で前記調整部が前記相対距離を調整する第2の位置とを選択可能であることを特徴とする請求項2乃至請求項8のいずれかに記載の内視鏡操作部の連結機構。   A first position in which the coupling main body portion can slide in the guide portion in a state where the adjustment portion is disposed on a side of the insertion portion side operation wire and the operation portion side operation wire; and the adjustment portion Can be selected from the second position where the adjustment portion adjusts the relative distance in a state where the adjustment portion protrudes from the guide portion and is disposed above the insertion portion side operation wire and the operation portion side operation wire. The connection mechanism for an endoscope operation unit according to any one of claims 2 to 8, wherein the connection mechanism is an endoscope operation unit. 前記調整部は、第1の凸部を有する第1の部材と、第2の凸部を有し、前記第1の部材と連結する第2の部材とをさらに有し
前記第1の部材と前記第2の部材とが連結した際に、前記第1の凸部と前記第2の凸部とは互い違いに配設されて前記挿入部側操作ワイヤと前記操作部側ワイヤとの少なくとも一方を挟み込むことを特徴とする請求項2に記載の内視鏡操作部の連結機構。
The adjustment portion further includes a first member having a first convex portion, and a second member having a second convex portion and connected to the first member. When the second member is connected, the first convex portion and the second convex portion are alternately arranged so that at least one of the insertion portion side operation wire and the operation portion side wire is provided. The connecting mechanism for an endoscope operation unit according to claim 2, wherein the connection mechanism is inserted.
JP2010194308A 2010-08-31 2010-08-31 Endoscope operation unit connection mechanism Expired - Fee Related JP5496023B2 (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53105079A (en) * 1977-02-23 1978-09-12 Olympus Optical Co Device for operating in curve endoscope
JPS5861724A (en) * 1981-10-09 1983-04-12 オリンパス光学工業株式会社 Wire relaxing and removing apparatus in endoscope apparatus
JPS6371001U (en) * 1986-10-27 1988-05-12
JPH04367643A (en) * 1991-06-14 1992-12-18 Machida Endscope Co Ltd Connecting structure of operating wire for intracoelom diagnosis device
JPH09206276A (en) * 1996-02-06 1997-08-12 Olympus Optical Co Ltd Curving operation device for endoscope
JP2003290138A (en) * 2002-03-29 2003-10-14 Fuji Photo Optical Co Ltd Connecting structure of wire and connecting structure of curving operation wire of endoscope
JP2006006760A (en) * 2004-06-29 2006-01-12 Pentax Corp Curving device of endoscope
JP2009160204A (en) * 2008-01-04 2009-07-23 Fujifilm Corp Curve operation device of endoscope and endoscope using the same

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53105079A (en) * 1977-02-23 1978-09-12 Olympus Optical Co Device for operating in curve endoscope
JPS5861724A (en) * 1981-10-09 1983-04-12 オリンパス光学工業株式会社 Wire relaxing and removing apparatus in endoscope apparatus
JPS6371001U (en) * 1986-10-27 1988-05-12
JPH04367643A (en) * 1991-06-14 1992-12-18 Machida Endscope Co Ltd Connecting structure of operating wire for intracoelom diagnosis device
JPH09206276A (en) * 1996-02-06 1997-08-12 Olympus Optical Co Ltd Curving operation device for endoscope
JP2003290138A (en) * 2002-03-29 2003-10-14 Fuji Photo Optical Co Ltd Connecting structure of wire and connecting structure of curving operation wire of endoscope
JP2006006760A (en) * 2004-06-29 2006-01-12 Pentax Corp Curving device of endoscope
JP2009160204A (en) * 2008-01-04 2009-07-23 Fujifilm Corp Curve operation device of endoscope and endoscope using the same

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