Flexible barb for anchoring a prosthesis
US7081132B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 2003 |
| Grant date | Jul 25, 2006 |
| Priority date | — |
| Expiry date | Oct 12, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/8483
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A barbed medical prosthesis is disclosed in which the barb includes a basal portion comprising a point of union with the substrate of origin (such as a strut), an anchoring portion adapted to embed into tissue, and a stress-dispersing portion located between the basal and anchoring portions. In one embodiment the stress-dispersing portion comprises a helical coil having a free winding that is unattached to the strut from which the barb extends. In another embodiment, the stress-dispersing portion comprises a series of bends or curves formed in the barb proximate to the point of union with the strut. The barb can be mechanically attached and/or soldered to the prosthesis, or integrally formed therefrom. A second barb portion and stress-dispersing portion, may also extend from the basal portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.