Olympus Medical Systems Corporation

Toshihiro Hadano

Ryuichi Toyama

Yuki Mitamura

Takeshi Ogura

Masayo Tsumaru

Makoto Abe

Ryosuke Ishizaki

An endoscope of an embodiment includes: a distal end rigid member made of resin; a channel tube connecting member which has a distal end side fitted and fixed in the distal end rigid member and is formed in a tubular shape using a conductive member, and which includes a stepped portion on a part of an outer circumferential surface in a longitudinal direction; and a bending piece member which is formed in a tubular shape using a conductive member and arranged just behind a rear end side of the distal end rigid member, and which has a protruding portion protruding and elastically-deformed toward an inner circumferential surface side, wherein when the bending piece member is fixed to the distal end rigid member with the channel tube connecting member being housed inside thereof, the protruding portion contacts the outer circumferential surface of the channel tube connecting member to establish conduction.

Endoscope

A medical instrument of the present invention comprises a spiral shaped portion provided at an insertion portion main body, for generating a force at the insertion portion main body to advance/retreat in a subject by a contact with a body wall of the subject, a balloon provided so as to expand radially in a radial direction of the insertion portion main body and capable of contact with the body wall, a suction opening portion provided between the spiral shaped portion and the balloon in the insertion portion main body, and a suction pipeline communicating with the suction opening portion, inserted into the insertion portion main body and connected to a suction pressure controller on a rear end side of the insertion portion main body in the insertion direction.

Medical instrument, endoscope and endoscope device

Growing community of inventors

Hachioji, Japan

Toshihiro Hadano