Title:
隣り合う切り込みが等間隔でない挿入管を備えた内視鏡およびそのような内視鏡の製造方法
Document Type and Number:
Japanese Patent JP7464795
Kind Code:
B2
Abstract:
The disclosure relates to an endoscope with an insertion tube. The insertion tube (2) has a proximal passive flexible section (C) and a distal bending section (A). Cuts (2611, 2621; 2613,2623) are provided in the proximal passive flexible section (C) to allow for bending the proximal passive flexible section (C). Adjacent cuts (2611, 2621; 2613, 2623) are unequally spaced in the proximal passive flexible section (C). The proximal passive flexible section (C) has secondary cuts (2621; 2623) adjacent to main cuts (2611; 2613), wherein the secondary cuts (2621;2623) are arranged closer in the longitudinal direction of the proximal passive flexible section(C) to the adjacent main cuts (2611; 2613) on one side of the secondary cuts (2621; 2623) than to the adjacent main cuts (2611; 2613) on the other side of the secondary cuts (2621; 2623).The main cuts (2611; 2613) extend along the circumference of the proximal passive flexible section (C) in an interrupted manner such that uncut bridges (2631; 2633) remain between main cut portions (2611; 2613) lying on a circumferential line. The proximal passive flexible section (C) includes the main cuts (2611; 2613), wherein at least within a subzone in the proximal passive flexible section (C), the main cuts (2611; 2613) are unequally spaced from each other in the longitudinal direction of the proximal passive flexible section (C).
Inventors:
Do, Ann Min
Application Number:
JP2023525075A
Publication Date:
April 09, 2024
Filing Date:
November 02, 2022
Export Citation:
Assignee:
HOYA Corporation
International Classes:
A61B1/005
Domestic Patent References:
| JP9192858A | ||||
| JP2014184061A | ||||
| JP2001101U | ||||
| JP2011188913A | ||||
| JP2020536612A |
Foreign References:
| DE102018127227A1 |
Attorney, Agent or Firm:
Hidehito Kono
Norio Kawano
Norio Kawano