Devices and methods of visualizing and determining depth of penetration in cardiac tissue
US10058321B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2016 |
| Grant date | Aug 28, 2018 |
| Priority date | — |
| Expiry date | Mar 4, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/3966
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosed herein are devices and methods for assessing the surface of a target cardiac tissue and for delivering a tissue anchor to cardiac tissue at a preselected depth within the myocardium in a beating heart procedure. In one variation, an anchor delivery device comprises an elongate body, a tissue anchor disposed within a first longitudinal lumen of the elongate body, and a tissue depth indicator slidable within a second longitudinal lumen of the elongate body. The tissue depth indicator has a first configuration that indicates the boundary of the surface of the target tissue and a second configuration that indicates when the distal tip of the elongate body has been advanced to a preselected depth into the target tissue. In some variations, a tissue depth indicator may also be configured to resist or limit the penetration of the delivery device into tissue after a preselected depth has been reached.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.