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Patent Searching and Data


Title:
ENDOSCOPE
Document Type and Number:
WIPO Patent Application WO/2020/039526
Kind Code:
A1
Abstract:
This endoscope comprises: an insertion part; an operation part that is connected to a base end side of the insertion part; a wire that is inserted into the insertion part; a pulling mechanism part that is disposed in the operation part and that pulls and relaxes the wire; a first bending section that constitutes a portion of the insertion part, and that bends actively in accordance with pulling of the wire; a second bending section that constitutes a portion of the insertion part, that is disposed more toward the base end side than the first bending section, that bends passively in accordance with an external force, and that expands/contracts in a direction along the longitudinal axis of the insertion part; a longitudinal member that is inserted into the insertion part and the operation part, and that maintains a distance along the longitudinal axis of the insertion part from the operation part to the first bending section; and a flexible tube section that constitutes a portion of the insertion part, that is disposed more toward the base end side than the second bending section, that is provided so as to be movable in a direction along the longitudinal axis relative to the operation part, the wire, and the longitudinal member, and that expands/contracts the second bending section by moving in a direction along the longitudinal axis relative to the operation section.

Inventors:
AKUI NOBUAKI (JP)
Application Number:
PCT/JP2018/031049
Publication Date:
February 27, 2020
Filing Date:
August 22, 2018
Export Citation:
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Assignee:
OLYMPUS CORP (JP)
International Classes:
A61B1/005
Domestic Patent References:
WO2016047265A12016-03-31
WO2013011771A12013-01-24
Foreign References:
JPH0298901U1990-08-07
JPH0966021A1997-03-11
JPH10258022A1998-09-29
JP2007190361A2007-08-02
Attorney, Agent or Firm:
ITOH Susumu (JP)
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