Transcatheter prosthetic heart valve delivery device with passive trigger release
US8876893B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2011 |
| Grant date | Nov 4, 2014 |
| Priority date | — |
| Expiry date | Aug 18, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2230/008
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A delivery device for percutaneously deploying a prosthetic valve includes a sheath, an inner shaft, and a release assembly. The release assembly is disposed between the sheath and the inner shaft, and includes a retraction member, a release member, and a retention member. The retraction member can self-retract in length from an extended condition to a retracted condition. The release member can self-expand from a compressed condition to an expanded condition. The retention member is distal the release member. In a delivery state, the sheath end is distal the retention member, the release member is in the compressed condition and the retraction member in the extended condition to retain the prosthesis. In a deployment state, the sheath end is positioned to permit the release member to self-transition to the expanded condition, allowing the retraction member to self-transition to the retracted condition and release the prosthesis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.