Prosthetic mitral valve with improved atrial and/or annular apposition and paravalvular leakage mitigation
US12053375B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2021 |
| Grant date | Aug 6, 2024 |
| Priority date | — |
| Expiry date | Mar 23, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0056
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention provides a prosthetic heart valve device with improved fit and/or apposition between the device frame and left atrial tissue and/or the device base and the annular tissue of the left atrium to improve shifting of the implanted device and/or mitigate paravalvular leakage. The improved fit and/or apposition arises in various embodiments by providing or allowing an asymmetrical frame and/or frame base and/or providing a lower lip to aid in conforming to the asymmetrical shape of the atrium and/or ensure firm positioning therein. An additional benefit of these arrangement(s) is mitigation of paravalvular leakage as a result of improved fit and seal. In certain embodiments, the asymmetry of the frame assists with delivery of the device into the atrium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.