Twisted anchoring barb for stent of abdominal aortic aneurysm (AAA) device
US8372143B2 · kind B2 · utility
7Cited by
22References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2010 |
| Grant date | Feb 12, 2013 |
| Priority date | — |
| Expiry date | Aug 19, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0039
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A stent is provided for an endoprosthesis having a main body portion and two leg portions, particularly suitable for treatment of an abdominal aortic aneurism. The stent includes barbs that are twisted and shaped set to point radially outward. Each barb, as formed, points substantially perpendicular relative to the longitudinal axis of the stent, even when in a non-deployed configuration. The motion to move the barb into a deployed configuration for gripping tissue is a twisting motion which moves the barb from being substantially aligned with the circumference of the stent to extending radially outwards from the stent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.