Device and method for anastomosis

摘要

A device for forming an anastomosis of blood vessels or ducts comprises: first and second engagement structures ( 7, 10; 35 ) for respectively engaging a first end portion ( 2 ) of a blood vessel ( 1 ) or of a prosthesis and a second end or side portion ( 4, 4 ') of the blood vessel ( 1 ) or prosthesis; and a mechanism ( 14, 14 ') for reciprocally connecting the first and second engagement structures. The first engagement structure ( 7, 10 ) comprise one or more piercing elements ( 6 ) adapted to only partially penetrate the side wall of the blood vessel ( 1 ) so as to avoid direct contact between the elements ( 6 ) and the blood inside the vessel or prosthesis.