Stent-graft with fixation elements that are radially confined for delivery
US9770350B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 15, 2012 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | Nov 10, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/8483
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An endovascular stent-graft is provided that includes a flexible stent member, which includes a plurality of struts, which are shaped so as to define a generally circumferential section; a tubular fluid flow guide, which includes a graft material, and which is attached to the stent member; and at least one fixation member shaped so as to define a base at a first end thereof and a sharp tip at a second end thereof. The base is coupled to one of the struts that are shaped so as to define the generally circumferential section. When the stent-graft is in a radially-expanded deployment state, the fixation member protrudes radially outward. When the stent-graft is in a radially-compressed delivery state, at least a portion of the fixation member between the base and the sharp tip is convex as viewed from outside the stent-graft, such that the sharp tip points radially inward.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.