JP2013202304A5

JP2013202304A5 -

Info

Publication number: JP2013202304A5
Application number: JP2012076990A
Authority: JP
Filing date: 2012-03-29
Publication date: 2015-05-07
Anticipated expiration: 2032-03-29

Description

上記目的を達成するため本発明の一態様における挿入機器は、被検体内に挿入される細長な挿入部を具備する挿入機器であって、前記挿入部の挿入方向の先端側に位置する第１の湾曲部と、前記挿入部の前記挿入方向において、前記第１の湾曲部よりも基端側に設けられた第２の湾曲部と、
前記挿入部の前記挿入方向において、前記第２の湾曲部よりも基端側に設けられた可撓管と、前記挿入部内に挿通され、前記挿入方向の先端が前記第１の湾曲部と前記第２の湾曲部との第１の接続部に固定された一対の第１のコイルパイプと、前記挿入部内に挿通され、前記挿入方向の先端が前記第２の湾曲部と前記可撓管との第２の接続部に固定された一対の第２のコイルパイプと、前記挿入部内に挿通され、前記挿入方向の先端が前記第２の接続部に固定された一対の第３のコイルパイプと、前記第１のコイルパイプ内に挿入され、先端部が前記第１の湾曲部において前記挿入方向の先端に位置する先端駒に固定された一対の第１のワイヤと、前記第２のコイルパイプ内に挿入され、先端部が前記第１の湾曲部の前記先端駒に固定された一対の第２のワイヤと、前記第３のコイルパイプ内に挿入され、先端部が前記第２の湾曲部において前記挿入方向の先端に位置する駒に固定された一対の第３のワイヤと、を具備している。 Insert device according to one aspect of the present invention for achieving the above object, an insertion device including the elongated insertion section to be inserted into a subject, first to position the distal end side of the insertion direction of the insertion portion a first curved portion, and the Oite prior Symbol insertion direction of the insertion portion, prior Symbol second curved portion provided on the base end side than the first bending portion,
In the insertion direction of the insertion portion, and the flexible tube than the second curved portion provided on the base end side, being inserted through the insertion portion, and the tip of the front Symbol insertion direction of the first curved portion a first coil pipe one pair fixed to the first connecting portion and the second curved portion, is inserted into the insertion portion, the friendly and front Symbol insertion direction of the distal end is the second curved portion a second second coil pipe one pair fixed to the connection portion of the Shiwakan, is inserted into the insertion portion, prior Symbol insertion direction leading end of a pair fixed to the second connecting portion A third coil pipe and a pair of first wires inserted into the first coil pipe and having a distal end fixed to a distal end piece located at the distal end in the insertion direction in the first curved portion; is inserted into the second coil pipe, the distal end portion is fixed to the distal end piece of the first curved portion A second wire pair, is inserted into the third coil pipe, and a pair of third wire which is fixed to the frame located at the distal end of the insertion direction in the tip and the second curved portion, It has.

Claims

An insertion device having an elongated insertion portion to be inserted into a subject,
A first curved portion which position the distal end side of the insertion direction of the insertion portion,
Oite before Symbol insertion direction of the insertion portion, and the front Stories second curved portion provided on the base end side than the first bending portion,
A flexible tube provided on the proximal side of the second bending portion in the insertion direction of the insertion portion ;
Wherein is inserted through the insertion portion, a first coil pipe of the first one-to-fixed to the connecting portion between the distal end of the previous SL insertion direction of the first curved portion and the second curved portion,
Wherein it is inserted through the insertion portion, and the second coil pipe of the second a pair is fixed to the connecting portion of the front Symbol insertion direction tip and the second bending portion and the flexible tube,
Wherein is inserted through the insertion portion, and a third coil pipe one pair tip before Symbol insertion direction is fixed to the second connecting portion,
A pair of first wires inserted into the first coil pipe and having a tip portion fixed to a tip piece located at a tip in the insertion direction in the first bending portion;
A pair of second wires inserted into the second coil pipe and having a tip fixed to the tip piece of the first bending portion ;
A pair of third wires inserted into the third coil pipe and having a distal end fixed to a piece located at the distal end in the insertion direction in the second bending portion ;
An insertion device comprising:

The pair of the first coil pipes, the pair of second coil pipes, and the pair of third coil pipes are opposed to each other across the central axis of the insertion portion. The insertion device described.

In the insertion portion, the first wire and the third wire are located adjacent to each other in the circumferential direction of the insertion portion, and the second wire includes the first wire and the first wire. The insertion device according to claim 1, wherein the insertion device is spaced apart from the three wires in the circumferential direction.

The second bending portion is composed of a plurality of bending pieces that can be bent in four directions,
The first bending piece is configured such that at least one bending piece that can be bent in two directions among the four directions is interposed between a plurality of bending pieces that can be bent in four directions. The insertion device according to claim 1.

In the operation unit connected to the proximal end of the flexible tube in the insertion direction,
A rotatable first bending operation member that pulls the first wire to bend the first bending portion;
A rotatable second bending operation member that pulls the second wire to bend the first bending portion and the second bending portion;
A rotatable third bending operation member that pulls the third wire to bend the second bending portion;
The insertion device according to claim 1, wherein the insertion device is provided.

By operating the first bending operation member, the first bending portion is bent in two directions,
By operating the second bending operation member, the first bending portion and the second bending portion are bent in two directions different from the two bending directions of the first bending portion. ,
The second bending portion is bent in the same two directions as the two bending directions of the first bending portion by operating the third bending operation member. 5. The insertion device according to 5.

6. The insertion device according to claim 5, wherein the first bending operation member and the second bending operation member are provided coaxially in the operation portion.

The insertion device according to claim 5, wherein the first bending operation member and the third bending operation member are provided coaxially in the operation portion.