Heart valve prosthesis

US10918479B2 · kind B2 · utility

Assignee

• SHANGHAI MICROPORT CARDIOFLOW MEDTECH CO., LTD. · CN

Inventors

• Guoming Chen · Shanghai, CN
• Yu-Tang Li · New Taipei, TW
• Feng Huang · Shanghai, CN
• Lei Huang · Duluth, US
• Jianchao Han · Taiyuan, CN
• Yihao DUAN · Shanghai, CN
• Shaohui Chen · Longbeilingcun, CN
• Qiyi Luo · Shanghai, CN

Key dates

• Filing date: Oct 15, 2018
• Grant date: Feb 16, 2021
• Expiry date: Apr 19, 2039

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2250/0039
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A stent (1) used for a heart valve prosthesis and the heart valve prosthesis that includes the stent (1) and is used for heart valve replacement. The stent is configured to support a heart valve (3) and includes, along a longitudinal axis, an inflow section (8), an outflow section (6) and a transition section (7) between the inflow section (8) and the outflow section (6). The stent (1) has a contracted delivery configuration and an expanded deployed configuration. In the expanded deployed configuration, the inflow section (8) defines a concave contour that is complementary to a structure of a native valve annulus. The concave contour enables self-deployment and close adherence of the stent (1), thereby preventing its displacement and perivalvular leakage after implantation.