Cardiovascular prosthetic devices and implants with porous systems
US4627836A · kind A · utility
Inventor
Key dates
| Filing date | Jun 30, 1983 |
| Grant date | Dec 9, 1986 |
| Priority date | — |
| Expiry date | Jun 30, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12042
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Novel cardiovascular prosthetic devices or implants having many useful cardiovascular applications comprise a porous surface and a network of interconnected interstitial pores below the surface in fluid flow communication with the surface pores. Tissue forms a smooth thin adherent coating of self-determining thickness on the porous surface making it resistant to the formation of the blood clots normally associated with the presence of foreign bodies in the blood stream. The device has particular utility in heart valves, pacemaker electrodes, blood pumps, blood stream filters, an artificial pancreas, vascular access tubes, small and large bore vascular grafts, blood pump diaphragms and vascular and intracardiac patches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.