Method and apparatus for closing an opening in thick, moving tissue
US8926640B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2010 |
| Grant date | Jan 6, 2015 |
| Priority date | — |
| Expiry date | Mar 24, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/0472
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device for placing sutures through thick and/or moving tissue such as the wall of a beating heart. The device includes a tissue welting tip having a trough for forming a welt in a tissue section, an alignment guide having an opening receiving a guide wire and pivotally mounted in the distal end adjacent to the trough, and an elongated sleeve slidably engagable with the guide wire. The device also includes one or more expandable tissue engaging member(s) on the sleeve expandable from a collapsed configuration having a diameter small enough to pass through the opening in the tip to an expanded configuration having a diameter large enough to engage a tissue section and urge it into the trough to form a welt in the tissue section and a retractable needle extendable through at least two portions of a tissue section while the tissue section is engaged with the trough.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.