Flexible, radially expansible luminal prostheses
US6270524A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 14, 1998 |
| Grant date | Aug 7, 2001 |
| Priority date | — |
| Expiry date | Aug 14, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0048
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention provides methods and apparatus for deploying luminal prostheses, such as stents, grafts, or stent-grafts, to luminal walls at a target site within an anatomical lumen. In one aspect of the invention, luminal prostheses are designed to negotiate curves, bends and other irregularities in body passageways so as to facilitate deployment of the stents and to minimize injury to the luminal walls. In addition, the luminal prostheses of the present invention have sufficient flexibility to bend and articulate so as to substantially conform to a tortuous body lumen at the target site, which enhances the post-deployment performance of the stent. In another aspect of the invention, methods and apparatus are provided for securing luminal prostheses to the luminal walls at a target site within an anatomical lumen. These methods and apparatus provide an effective frictional lock between the stent and the luminal wall to inhibit migration and/or failure of the stent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.