Actively controllable stent, stent graft, heart valve and method of controlling same
US9827093B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2014 |
| Grant date | Nov 28, 2017 |
| Priority date | — |
| Expiry date | Jun 19, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0069
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for implanting a stent includes contracting a self-expanding/forcibly-expanding stent of a shape-memory material set to a given shape to a reduced implantation size with a delivery system having drive wires. The stent has a selectively adjustable assembly with adjustable elements operatively connected to the drive wires such that, when the adjustable elements are adjusted by the drive wires, a configuration change in at least a portion of the self-expanding stent occurs. The contracted stent is inserted into a native annulus in which the stent is to be implanted. The drive wires are rotated with the delivery system to forcibly expand the stent into the native annulus. While rotating the drive wires, a torque applied to the drive wires is determined with the delivery system. Rotation of the drive wires is stopped based upon a value of the determined torque.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.