Title:
ONE-WAY VALVE AND MEDICAL CATHETER HAVING SAME
Document Type and Number:
WIPO Patent Application WO/2021/078155
Kind Code:
A1
Abstract:
A one-way valve and a medical catheter having same, which belong to the field of medical instruments. The one-way valve (10) comprises: a fixed portion (11), the fixed portion (11) being used for being connected to the inner wall of a catheter body (20) of a medical catheter, a flow-through hole (111) being provided on the fixed portion (11); and a deformation portion (121), the deformation portion (121) being connected to the fixed portion (11), the deformation portion (121) having a first form and a second form, the deformation portion (121) blocking the flow-through hole (111) when in the first form, and the deformation portion (121) unblocking the flow-through hole (111) when in the second form, when a liquid in the catheter body (20) flows in a first direction, the deformation portion (121) being driven to be in the first form, and when the liquid in the catheter body (20) flows in a second direction, the deformation portion (121) being driven to be in the second form. The one-way valve has a purely mechanical structure, not needing a circuit to perform control or considering the sealing problem in a liquid environment, thus allowing a relatively simple structure and a relatively low manufacturing cost.
Inventors:
YE LE (CN)
XU GUANZHE (CN)
GAO MENG (CN)
YANG XUYAN (CN)
XU GUANZHE (CN)
GAO MENG (CN)
YANG XUYAN (CN)
Application Number:
PCT/CN2020/122502
Publication Date:
April 29, 2021
Filing Date:
October 21, 2020
Export Citation:
Assignee:
HANGZHOU WEIMING XINKE TECH CO LTD (CN)
ADVANCED INSTITUTE OF INFORMATION TECHNOLOGY AIIT PEKING UNIV (CN)
ADVANCED INSTITUTE OF INFORMATION TECHNOLOGY AIIT PEKING UNIV (CN)
International Classes:
A61M39/24
Foreign References:
CN205391382U | 2016-07-27 | |||
CN107126621A | 2017-09-05 | |||
CN110947092A | 2020-04-03 | |||
US6565526B2 | 2003-05-20 | |||
CN201791165U | 2011-04-13 | |||
CN106308985A | 2017-01-11 | |||
US4666429A | 1987-05-19 | |||
CN102989083A | 2013-03-27 |
Attorney, Agent or Firm:
BEIJING CHEN QUAN INTELLECTUAL PROPERTY LAW FIRM (CN)
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