METHODS, DEVICES AND SYSTEMS FOR FORMING MAGNETIC ANASTOMOSES

摘要

Methods, devices and systems for forming magnetic anastomoses between two blood vessels. A first anastomotic component (60) is removably supported by the distal end of a delivery device (10) for attachment to a first vessel. The delivery device (10) also supports a second anastomotic component (80) that has been secured to a second blood vessel. The device (10) is operated to secure the first component to the first vessel, couple the second component (80) to the first component (60), and then release the components (60, 80) to complete the anastomosis. A robotic anastomosis system includes several robotic instruments (94, 96) that may be positioned through ports in a patient, used to secure an anastomotic component (60 or 80) to a vessel, and then used to magnetically couple the components (60, 80). Delivery devices (110) for deploying magnetic anastomotic components include an actuator (112) that uses magnetic repulsion to move the components (118, 120) into engagement with the inner and outer surfaces of the vessel wall. The anastomotic components (60, 80, 118, 120) are secured to the vessel wall by magnetic force and in addition may be secured by mechanical attachment.