Invention Grant
- Patent Title: Drug eluting stent and method of use of the same for enabling restoration of functional endothelial cell layers
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Application No.: US15797862Application Date: 2017-10-30
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Publication No.: US11039942B2Publication Date: 2021-06-22
- Inventor: Jianhua Sun , Christophe Bureau , Wenbin Cai , Tianzhu Li , Xiaoran Kang
- Applicant: SINO MEDICAL SCIENCES TECHNOLOGY INC.
- Applicant Address: CN Tianjin
- Assignee: SINO MEDICAL SCIENCES TECHNOLOGY INC.
- Current Assignee: SINO MEDICAL SCIENCES TECHNOLOGY INC.
- Current Assignee Address: CN Tianjin
- Agency: Arrigo, Lee, Guttman & Mouta-Bellum LLP
- Main IPC: A61F2/24
- IPC: A61F2/24 ; A61F2/82 ; A61L31/16 ; A61L31/10 ; A61L31/02 ; A61L31/06 ; A61L31/14

Abstract:
The present disclosure relates to drug eluting stents, methods of making, using, and verifying long-term stability of the drug eluting stents, and methods for predicting long term stent efficacy and patient safety after implantation of a drug eluting stent. In one embodiment, a drug eluting stent may include a stent framework; a drug-containing layer; a drug embedded in the drug-containing layer; and a biocompatible base layer disposed over the stent framework and supporting the drug-containing layer. The drug-containing layer may have an uneven coating thickness. In addition or in alternative, the drug-containing layer may be configured to significantly dissolve/dissipate/disappear between 45 days and 60 days after stent implantation. Stents of the present disclosure may reduce, minimize, or eliminate patient risks associated with the implantation of a stent, including, for example, restenosis, thrombosis, and/or MACE.
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