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.

Date of Patent:
Dec. 08, 2020

Filed:

Jun. 08, 2016
Applicant:

Lifetech Scientific (Shenzhen) Co., Ltd, Shenzhen, CN;

Inventors:

Wenjiao Lin, Shenzhen, CN;

Li Qin, Shenzhen, CN;

Deyuan Zhang, Shenzhen, CN;

Hongtao Sun, Shenzhen, CN;

Gui Zhang, Shenzhen, CN;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61L 31/02 (2006.01); A61L 31/10 (2006.01); A61L 31/16 (2006.01); A61L 31/14 (2006.01); A61L 27/58 (2006.01); A61L 27/04 (2006.01); A61L 27/50 (2006.01); A61L 27/54 (2006.01); A61L 27/34 (2006.01); A61L 31/08 (2006.01);
U.S. Cl.
CPC ...
A61L 31/022 (2013.01); A61L 27/042 (2013.01); A61L 27/34 (2013.01); A61L 27/50 (2013.01); A61L 27/54 (2013.01); A61L 27/58 (2013.01); A61L 31/10 (2013.01); A61L 31/14 (2013.01); A61L 31/148 (2013.01); A61L 31/16 (2013.01); A61L 31/082 (2013.01); A61L 2400/18 (2013.01); A61L 2420/08 (2013.01);
Abstract

An absorbable iron-based alloy implantable medical device includes an iron-based alloy matrix, a degradable polymer coating disposed on the surface of the iron-based alloy matrix, and a corrosion inhibition layer disposed on the surface of the iron-based alloy matrix. The corrosion inhibition layer can delay early-stage corrosion of the iron-based alloy matrix, ensure mechanical performance of a medical device in the early stage of the implantation, prevent degradation of a polymer in the early stage of the implantation of the medical device, and reduce the usage of the degradable polymer, thereby reducing risks of inflammatory reactions.


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