Assembly tooling for an autologous tissue heart valve
US5522885A · kind A · utility
29Cited by
22References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 5, 1994 |
| Grant date | Jun 4, 1996 |
| Priority date | — |
| Expiry date | May 5, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7857
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An assembly tool for a bioprosthetic heart valve is disclosed. The tool assembles a valve having an inner and a spreadable outer stent, and includes a spreading ring with an elevated lip to hold the spread outer stent, an expander having fingers which contact the outer stent base to spread it apart, and a plunger to spread the fingers of the outer stent. An assembly mandrel having indexing rails allows the insertion of the inner stent into the spread outer stent while maintaining the correct rotational positioning of both stents. A shedding cap protects the tissue wrapped on the inner stent from abrasion during insertion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.