Temporary seal and method for facilitating anastomosis
US7544203B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2004 |
| Grant date | Jun 9, 2009 |
| Priority date | — |
| Expiry date | Feb 8, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/1107
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Forming a proximal anastomosis on an aortic wall includes method and instrumentation and apparatus for forming an aortic puncture and inserting a fluid-impervious sealing element with a lateral flange and central stem into the vessel through the puncture. An anastomosis of a graft vessel over the puncture is partially completed with the central stem of the sealing element protruding through the partial anastomosis. A removal instrument attaches to the central stem and retrieves the sealing element that disassembles in helical disassociation of the flange and stem into a continuous strand that is withdrawn from the partial anastomosis prior to completion of the procedure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.