Dynamic aortic patch for thoracic or abdominal implantation
US4630597A · kind A · utility
Inventors
Key dates
| Filing date | Apr 30, 1984 |
| Grant date | Dec 23, 1986 |
| Priority date | — |
| Expiry date | Apr 30, 2004 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M60/843
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An improved dynamic aortic patch is constructed with an elongate semi-rigid shell member having a concave inner surface and a flexible membrane integrally bonded to the outer surface of the shell to define an inflatable and deflatable chamber between the concave inner surface and the membrane. The pumping capacity of the patch is determined by the concavity of the inner surface of the shell member, thus enabling the construction of a patch which may be implanted in the thoracic cavity (small concavity) or in the abdomen (large concavity). A fabric layer bonded to the membrane over the area overlying the outer surface of the shell has a peripheral suture flange projecting freely clear of the membrane, and a temporary shield adapted to overlie the fabric layer may be employed to assure that sutures placed to attach the patch within an opening in the aorta are not inadvertently passed through the membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.