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:
Jan. 05, 2016
Filed:
Jun. 13, 2011
Junfei LI, Shanghai, CN;
Xi HU, Shanghai, CN;
Chengyun Yue, Shanghai, CN;
Dawei Wang, Shanghai, CN;
Peng Huang, Shanghai, CN;
Zhirong Tang, Shanghai, CN;
Qiyi Luo, Shanghai, CN;
Zhaohua Chang, Shanghai, CN;
Junfei Li, Shanghai, CN;
Xi Hu, Shanghai, CN;
Chengyun Yue, Shanghai, CN;
Dawei Wang, Shanghai, CN;
Peng Huang, Shanghai, CN;
Zhirong Tang, Shanghai, CN;
Qiyi Luo, Shanghai, CN;
Zhaohua Chang, Shanghai, CN;
Shanghai MicroPort Medical (Group) Co., Ltd., Shanghai, CN;
Abstract
The present invention discloses an interventional medical device and methods of making the same. At least one coating layer is disposed on the outer surface of the interventional medical device and the material of the outmost layer of the coating layer is a sulfonate group-containing polymer. In the present invention, the material of the outmost layer of the interventional medical device is a sulfonate group-containing polymer. The polymer is endowed with a same surface property as that of heparin in addition to appropriate hydrophilicity due to the presence of the sulfonate group. After the interventional medical device is implanted into the human body, a hydrophilic surface is formed on the outer surface of the interventional medical device which is also negatively charged in the body fluid. Therefore, cells can easily adhere and grow on the outer surface thereof as a result of the enhanced cell compatibility. Furthermore, due to a surface property that is the same as that of heparin, the material is provided with excellent anticoagulant properties which inhibit the thrombosis and lower down the incidence rate of post-operational complications.