Internal vascular prosthesis
US4820298A · kind A · utility
Inventors
Key dates
| Filing date | Nov 20, 1987 |
| Grant date | Apr 11, 1989 |
| Priority date | — |
| Expiry date | Nov 20, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2220/0058
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A medical stent for use in an aneurysm constructed with a flexible tubular body formed from a medical thermoplastic in the form of a helix. The flexible tubular body defines a lumen and the body is adapted to assume a substantial linear configuration when mounted on a stylet with the material of the body having a recovery memory which causes it to assume a helical configuration when it is removed from the stylet. The body is provided with strands which are connected to adjacent loops of the helix and extend in the space defined by each coil of the helix to allow clot and ingrowth of tissue to seal off the dilated portion of the vessel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.