Title:
VALVE STENT AND VALVE PROSTHESIS
Document Type and Number:
WIPO Patent Application WO/2022/100715
Kind Code:
A1
Abstract:
A valve stent and a valve prosthesis, wherein the valve stent is in the shape of a mesh tube, and comprises M layers of wave rod unit sets sequentially connected in an axial direction; a first layer wave rod unit set is positioned at an inflow end; an Mth layer wave rod unit set is positioned at an outflow end; the wave rod unit sets comprise wave rod units (10, 20) connected in the circumferential direction; and the number of the wave rod units (20) in the Mth layer wave rod unit set is less than that of the wave rod units (10) in an (M-1)th layer wave rod unit set. The problem of existing valve stents whereby when in use, same press a valve cusp and block a coronary channel can be solved.
Inventors:
ZHANG LEI (CN)
GAO QUANCHAO (CN)
JI LIJUN (CN)
DAI SHUAISHUAI (CN)
CHEN GUOMING (CN)
GAO QUANCHAO (CN)
JI LIJUN (CN)
DAI SHUAISHUAI (CN)
CHEN GUOMING (CN)
Application Number:
PCT/CN2021/130476
Publication Date:
May 19, 2022
Filing Date:
November 12, 2021
Export Citation:
Assignee:
SHANGHAI MICROPORT CARDIOFLOW MEDTECH CO LTD (CN)
International Classes:
A61F2/24
Foreign References:
| CN214157593U | 2021-09-10 | |||
| CN214157594U | 2021-09-10 | |||
| US20200360134A1 | 2020-11-19 | |||
| US20210275298A1 | 2021-09-09 | |||
| US20200246141A1 | 2020-08-06 | |||
| CN208910583U | 2019-05-31 | |||
| US20180200053A1 | 2018-07-19 | |||
| CN111053629A | 2020-04-24 | |||
| CN105555232A | 2016-05-04 |
Attorney, Agent or Firm:
SHANGHAI SAVVY IP AGENCY CO., LTD. (CN)
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