Off-center tissue anchors
US11484303B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2020 |
| Grant date | Nov 1, 2022 |
| Priority date | — |
| Expiry date | Aug 30, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2230/0091
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A tissue anchor is provided for delivery by a deployment tool in a constrained state, the tissue anchor including a shaft; a tissue-coupling element, which includes a wire including a shape-memory alloy; and a flexible elongate tension member, which is distinct from the wire. The flexible elongate tension member includes a distal portion that is fixed to a site on the wire such that, when the tissue anchor is not constrained by the deployment tool, the flexible elongate tension member applies, to the tissue-coupling element, tension that constrains lateral expansion of the tissue-coupling element away from a central longitudinal axis of the shaft, by preventing the tissue-coupling element from automatically assuming a predetermined shape provided by the shape-memory alloy of the wire. Other embodiments are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.