Title:
内視鏡
Document Type and Number:
Japanese Patent JP6854978
Kind Code:
B2
Abstract:
An endoscope includes: an outer cylinder including an outer cylinder distal end portion held by a distal end holding portion provided inside an insertion section and an outer cylinder proximal end portion held by a proximal end holding portion provided on a proximal end side relative to the distal end holding portion; and an inner cylinder provided inside the outer cylinder, the inner cylinder including inside a wire coupled to a movable portion provided in the insertion section, an amount of stretch of the inner cylinder due to bending of the insertion section being larger than an amount of stretch of the outer cylinder due to the bending, the inner cylinder, in a stretch state where the inner cylinder stretches due to the bending, forming a gap in a longitudinal direction of the outer cylinder between the inner cylinder and the proximal end holding portion.
Inventors:
Daichi Yamasaka
Hideyasu Sueyasu
Kazuhiko Hino
Hideyasu Sueyasu
Kazuhiko Hino
Application Number:
JP2020523517A
Publication Date:
April 07, 2021
Filing Date:
March 04, 2019
Export Citation:
Assignee:
Olympus Endo Technology America Inc.
International Classes:
A61B1/018
Domestic Patent References:
| JP56008030A | ||||
| JP2009078012A | ||||
| JP2002291685A | ||||
| JP2009153959A |
Attorney, Agent or Firm:
Patent Business Corporation Itoshin International Patent Office