Interventional medical device and manufacturing method thereof

US9433709B2 · kind B2 · utility

Assignee

• SHANGHAI MICROPORT MEDICAL (GROUP) CO., LTD · CN

Inventors

• Dadong Zhang · Shanghai, CN
• Xu Cai · Shanghai, CN
• Chengyun Yue · Shanghai, CN
• Junfei LI · West Street, CN
• Yan Hu · Zhejiang, CN
• Peng Huang · Shanghai, CN
• Zhirong Tang · Phoenix, US
• Qiyi Luo · Shanghai, CN

Key dates

• Filing date: Apr 2, 2015
• Grant date: Sep 6, 2016
• Expiry date: Apr 2, 2035

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61L2420/02
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An interventional medical device and manufacturing method thereof. The interventional medical device comprises: a stent body (1); a surface of the stent body (1) being provided with a drug releasing structure (3), and drug in the drug releasing structure (3) being drug for suppressing proliferation of adventitial fibroblasts and a drug for suppressing proliferation of intimal and/or smooth muscle cells. In use, after interventional medical device is implanted into a human body, the drug for suppressing proliferation of adventitial fibroblasts carried thereon can promote the compensatory expansion of the vessel, and the drug for suppressing proliferation of intimal cells and/or smooth muscle cells carried thereon can suppress intimal proliferation of the vessel. The combination of the two kinds of drugs greatly reduces the occurrence rate of in-stent restenosis.