Gasket with spring collar for prosthetic heart valves and methods for making and using them
US7967857B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 29, 2007 |
| Grant date | Jun 28, 2011 |
| Priority date | — |
| Expiry date | Aug 24, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/006
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A heart valve prostheses includes an annular member implantable within a biological annulus, a collar extending upwardly from the annular member, and a sewing ring extending from the annular member. A spring structure couples the collar to the annular member and biases the collar to align with the annular member at a predetermined distance above the annular member. During use, the prosthesis is introduced into a biological annulus, and fasteners are directed through the sewing ring into surrounding tissue to secure the prosthesis with the annular member within the biological annulus. A mechanical or bioprosthetic valve is introduced and coupled to the collar, e.g., using tabs or other connectors on the collar. The spring structure allows the collar to be directed towards the annular member and/or folded inwardly, e.g., to facilitate accessing the sewing ring to deliver fasteners.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.