The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 01, 2023
Filed:
Jun. 15, 2021
Beijing Institute of Technology, Beijing, CN;
Tianyang Qiu, Beijing, CN;
Wei Jiang, Beijing, CN;
Hongjun Wang, Beijing, CN;
Tianfeng Zhou, Beijing, CN;
Wenxiang Zhao, Beijing, CN;
Pei Yan, Beijing, CN;
Zhiqiang Liang, Beijing, CN;
Zhibing Liu, Beijing, CN;
Lijing Xie, Beijing, CN;
Li Jiao, Beijing, CN;
Xibin Wang, Beijing, CN;
Beijing Institute of Technology, Beijing, CN;
Abstract
Disclosed is an injection molding method for a degradable intravascular stent with a flexible mold core structure. The injection molding method includes the following steps: Step 1, winding a metal rod with a flexible metal film, and applying an inward bending stress to the flexible metal film; Step 2, fixing the flexible metal film to the metal rod, and processing a complementary structure of the degradable intravascular stent on the surface of the flexible metal film; Step 3, performing injection molding processing; Step 4, ending the injection molding, removing the mating body of the flexible metal film and the metal rod and the degradable intravascular stent formed on the surface of the flexible metal film by injection molding, performing cooling, separating the metal rod from the flexible metal film, withdrawing the metal rod, and then removing the flexible metal film to obtain a formed degradable intravascular stent.