Low profile non-symmetrical bare alignment stents with graft
US8574284B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 2009 |
| Grant date | Nov 5, 2013 |
| Priority date | — |
| Expiry date | Jul 31, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2230/0067
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A stent graft for use in a medical procedure to treat a dissection of a patient's ascending thoracic aorta. The stent graft includes bare alignment stents at least at a proximal end, and often with a stent at both ends, each stent having opposing sets of curved apices, where the curved section of one broader set of apices has a radius of curvature that is greater than the curved section of the other narrower set of apices. The proximal stent is flared in a manner such that its broad apices occupy a larger circumference around the stent than do its narrower apices, where this flared feature provides for anchoring engagement near the aortic root in a manner not interfering with the coronary arteries or the aortic valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.