Self-actuating sealing portions for paravalvular leak protection
US9687341B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2016 |
| Grant date | Jun 27, 2017 |
| Priority date | — |
| Expiry date | Jun 15, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/007
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A prosthetic heart valve for replacing a native valve includes a collapsible and expandable stent having a proximal end and a distal end, and a valve assembly including a plurality of leaflets, the valve assembly being disposed within the stent. The heart valve further includes a plurality of elongated legs each with a first end coupled to the stent and a free end, the elongated legs being configured to transition from an extended configuration to a relaxed configuration. A sealing portion connected to the plurality of legs forms a sealing structure when the legs transition to the relaxed configuration to reduce perivalvular leakage between the implanted valve and surrounding tissue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.