Heart valve with removable cusp protector band
US4364126A · kind A · utility
189Cited by
6References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 28, 1981 |
| Grant date | Dec 21, 1982 |
| Priority date | — |
| Expiry date | Jul 28, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S623/90
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A plastic band is secured around the outside of a prosthetic heart valve adjacent the sewing cushion to protect the valve leaflet material against inadvertent needle punctures and tears while sutures are being placed through the sewing cushion. The band is held in place by a single retention suture which passes through the band and sewing cushion of the valve and extends across the valve orifice. The protector is especially desirable for use with pericardial tissue valves having the tissue mounted on the outside of the valve stent where the tissue is particularly exposed and susceptible to needle damage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.