JP2011156269A5

JP2011156269A5 -

Info

Publication number: JP2011156269A5
Application number: JP2010022179A
Authority: JP
Filing date: 2010-02-03
Publication date: 2012-08-16
Anticipated expiration: 2030-02-03

Description

上記目的を達成するため本発明の一態様による内視鏡は、複数の関節駒が回動自在に挿入部の挿入方向に沿って連結されて構成されることにより、複数方向に湾曲自在な湾曲部が前記挿入部に設けられた内視鏡であって、前記複数の関節駒は、４方向に回動自在な４方向駒が、前記挿入方向に沿ってそれぞれ複数の第1リベットおよび第2のリベットにより複数連結された第１の駒体と、２方向に回動自在な２方向駒が、前記挿入方向に沿ってそれぞれ複数の他のリベットにより複数連結された第２の駒体と、を備え、前記第１の駒体において、前記核第1のリベット及び前記第2のリベットは、前期複数の関節駒の内周面に沿って挿通された複数のワイヤに対して、円周方向にそれぞれ４５°ずれて位置しているとともに、前記第２の駒体に設けられる複数の前記リベットは、前記第１の駒体に設けられる複数の前記第１のリベットまたは前記第２のリベットに対して、円周方向に４５°ずれて位置している。 In order to achieve the above object, an endoscope according to one aspect of the present invention is configured such that a plurality of joint pieces are rotatably connected along an insertion direction of an insertion portion, thereby bending in a plurality of directions. The endoscope is an endoscope provided in the insertion portion, wherein the plurality of joint pieces are four-direction pieces rotatable in four directions, and a plurality of first rivets and second pieces are respectively provided along the insertion direction . A plurality of first pieces connected by a plurality of rivets , and a second piece formed by connecting a plurality of two-way pieces rotatable in two directions by a plurality of other rivets along the insertion direction, In the first piece body, the core first rivet and the second rivet are arranged in a circumferential direction with respect to the plurality of wires inserted along the inner peripheral surfaces of the plurality of joint pieces in the previous period. They are located 45 ° apart from each other and provided on the second frame. A plurality of the rivets, to the first frame member a plurality of said first provided of rivets or the second rivet is positioned displaced 45 ° in the circumferential direction.

Claims

An endoscope in which a plurality of joint pieces are rotatably connected along the insertion direction of the insertion portion, and a bending portion that can be bent in a plurality of directions is provided in the insertion portion,
The plurality of joint pieces are:
A four-piece piece rotatable in four directions, a first piece body connected by a plurality of first rivets and a plurality of second rivets along the insertion direction;
A two-piece piece that is rotatable in two directions, a plurality of second pieces each connected by a plurality of other rivets along the insertion direction;
With
In the first piece body, each of the first rivet and the second rivet is 45 ° in the circumferential direction with respect to the plurality of wires inserted along the inner peripheral surfaces of the plurality of joint pieces in the previous period. As well as being offset
The plurality of rivets provided on the second piece body are shifted by 45 ° in the circumferential direction with respect to the plurality of first rivets or the second rivet provided on the first piece body. Endoscope characterized by that .

The endoscope according to claim 1, wherein the plurality of joint pieces further include an intermediate piece that connects the first piece body and the second piece body along the insertion direction. .

In the second piece body, the one joint piece and the other joint piece adjacent to each other in the insertion direction are rotatable in two directions by two rivets positioned 180 ° apart from each other in the circumferential direction. Are connected,
In the first piece body, the first joint piece adjacent in the insertion direction and the second joint piece on the proximal side in the insertion direction with respect to the first joint piece are 180 ° in the circumferential direction. Two first rivets that are displaced and connected so as to be rotatable in two directions, and the second joint piece adjacent in the insertion direction and the insertion direction more than the second joint piece The first joint piece on the base end side is positioned by the two second rivets which are located 180 ° apart from each other in the circumferential direction and 90 ° in the circumferential direction from the first rivet. The first piece body is rotatable in four directions by being connected so as to be rotatable in two directions different from the direction. Endoscope.