Title:
INSERTION PORTION, ENDOSCOPE, AND DRIVING METHOD
Document Type and Number:
WIPO Patent Application WO/2023/087462
Kind Code:
A1
Abstract:
An insertion portion, an endoscope, and a driving method, applied in the technical field of endoscopes. The insertion portion comprises: an insertion tube (1), a first radial deformation body (2), a first axial deformation body (3) and a second radial deformation body (4), two ends of the first axial deformation body (3) being fixedly connected to the first radial deformation body (2) and the second radial deformation body (4), respectively, and the second radial deformation body (4) being fixedly disposed at a far end of the insertion tube (1); the first radial deformation body (2) and the second radial deformation body (4) can deform to contact inner wall of an insertion object (5) of the insertion tube (1); the first axial deformation body (3) is used to generate a force enabling the first radial deformation body (2) to approach or move away from the second radial deformation body (4). A front-driven advancing solution achieves advancing of the insertion portion in a human body cavity; this type of driving solution has low requirements for hardness of an insertion tube (1), and the insertion tube (1) can be relatively soft, so that minimal pain is caused to a patient.
Inventors:
MO WENJUN (CN)
ZHOU GUANHUA (CN)
ZHOU GUANHUA (CN)
Application Number:
PCT/CN2021/138470
Publication Date:
May 25, 2023
Filing Date:
December 15, 2021
Export Citation:
Assignee:
HUNAN VATHIN MEDICAL INSTRUMENT CO LTD (CN)
International Classes:
A61B1/005; A61B1/00; G02B23/24
Foreign References:
| CN101396256B | 2013-01-23 | |||
| JP2016002237A | 2016-01-12 | |||
| US20090118582A1 | 2009-05-07 | |||
| JP2007268137A | 2007-10-18 | |||
| CN103070659A | 2013-05-01 | |||
| JP2005261781A | 2005-09-29 | |||
| CN110062597A | 2019-07-26 | |||
| JP2011160974A | 2011-08-25 |
Attorney, Agent or Firm:
SICHUAN ZHONGDAI INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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