Valve prosthesis fixation techniques using sandwiching
US8771345B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2011 |
| Grant date | Jul 8, 2014 |
| Priority date | — |
| Expiry date | Nov 30, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0039
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A prosthesis including a distal fixation member that defines two or more engagement arms that are configured to apply a first axial force to tissue of the subject on a downstream side of the native valve complex. The prosthesis also includes a proximal fixation member configured to apply a second axial force to tissue of the subject on an upstream side of the native valve complex such that application of the first and second axial forces couples the prosthesis to the native valve complex. The proximal fixation member and the distal fixation member are fabricated as one integrated structure. The engagement arms and the proximal fixation member are configured to capture leaflets of the native valve complex therebetween without folding over of leaflets of the native valve complex, upon implantation of the prosthesis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.