Tissue bonding system and method for controlling a tissue site during anastomosis
US6398797B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2000 |
| Grant date | Jun 4, 2002 |
| Priority date | — |
| Expiry date | Nov 29, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2/064
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and system for performing anastomosis uses an anvil to control and support a tissue site during an anastomosis procedure involving tissue bonding techniques such as tissue welding and adhesive tissue bonding. The anvil is particularly useful for supporting a wall of a coronary artery during attachment of a graft vessel in a coronary artery bypass graft procedure. The anvil is inserted into a pressurized or unpressurized target vessel and is pulled against an inner wall of the target vessel causing tenting of the thin tissue of the vessel wall. A graft vessel is then advanced to the anastomosis site and an end of the graft vessel is positioned adjacent an exterior of the target vessel. When tissue welding is used, a graft vessel fixture is positioned over the tissue surfaces to be welded in order to clamp the graft and target vessel tissue together. The tissue contacting surfaces of the anvil and/or graft vessel fixture are provided with one or more energy applying surfaces. Energy in the form of RF power, laser energy or ultrasonic energy is then applied to the compressed graft and target vessel tissue to weld the vessels together. When adhesive bonding is used, the adhesi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.