Medical implant
US4986831A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 1988 |
| Grant date | Jan 22, 1991 |
| Priority date | — |
| Expiry date | Apr 25, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00161
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
This invention is described and illustrated in connection with the generation of a homograft composed of collagenous tissue generated on a prosthetic device. A tubular substrate having generally cylindrical outside and inside surfaces is suspended in the lumen of a blood vessel of a living body. The tubular substrate is open at each end to permit blood to flow over both the inside and outside surfaces. One of the surfaces of the substrate is a thrombogenic surface or supports a thrombogenic mesh material to promote growth of a tube of collagenous tissue suitable for use as a surgical graft. The substrate is suspended in the blood flow of a blood vessel by an anchor which permits the substrate to freely move within the lumen of the vessel but is anchored by the tether to prevent the substrate from moving along the vessel in the direction of blood flow. The collagenous tissue growth about the substrate is generally tubular and suitable for use as a surgical graft. The method of generating a homograft includes preparing a prosthesis composed of a tubular substrate. The substrate is open at each end to permit blood to flow along the length of the substrate inside wall. The substrate is…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.