Title:
VALVE MATERIAL, METHOD FOR PREPARING SAME AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2024/041251
Kind Code:
A1
Abstract:
Disclosed in the present application is a polymer valve material. The polymer valve material comprises: a framework, formed by means of electrostatic spinning using polyurethane A as a raw material; and a composite layer, using polyurethane B as a raw material and compounded to the framework. Further disclosed in the present application is a method for preparing the polymer valve material. The method comprises: a spinning step, carrying out electrostatic spinning on a polyurethane A solution to obtain a prefabricated film; a compounding step, compounding the polyurethane B and the prefabricated film to obtain the polymer valve material; and an adjusting step, carrying out hot pressing treatment on the prefabricated film before or during the compounding process. The valve leaflet material prepared according to the present application can improve the creep resistance and the edge tear resistance of the valve leaflet, thereby prolonging the service life of the valve.
Inventors:
LIU ZHAOGANG (CN)
ZHU YUTING (CN)
WEI XING (CN)
WANG LICHAO (CN)
MA RENZHENG (CN)
ZHU YUTING (CN)
WEI XING (CN)
WANG LICHAO (CN)
MA RENZHENG (CN)
Application Number:
PCT/CN2023/106865
Publication Date:
February 29, 2024
Filing Date:
July 12, 2023
Export Citation:
Assignee:
VENUS MEDTECH HANGZHOU INC (CN)
International Classes:
A61L27/18; A61F2/24; A61L27/34; A61L27/50; A61L27/52
Foreign References:
| US20160296323A1 | 2016-10-13 | |||
| CN113230455A | 2021-08-10 | |||
| CN110494170A | 2019-11-22 | |||
| CN101690683A | 2010-04-07 | |||
| CN106726008A | 2017-05-31 | |||
| CN113813080A | 2021-12-21 | |||
| JP2006158494A | 2006-06-22 |
Attorney, Agent or Firm:
SHINY INTELLECTUAL PROPERTY FIRM (CN)
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