Rotatable cuff assembly for a heart valve prosthesis
US5876436A · kind A · utility
136Cited by
62References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 13, 1997 |
| Grant date | Mar 2, 1999 |
| Priority date | — |
| Expiry date | Feb 13, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S623/90
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention provides a sewing cuff assembly for mounting to the body of a heart valve prosthesis. The sewing cuff assembly comprises a resiliently deformed spring for exerting a force directed toward the orifice structure. When a torque is applied to the valve, the force results in a rotation-resisting torque sufficient to resist rotation during normal operation of the valve after implantation but low enough to permit assisted rotation, as during surgery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.