Patent ID: 7749239

Claim:
Method for anastomosing a receptor vessel and a donor vessel, these vessels being hollow tube-like structures of the human body and having walls with a given thickness, the method comprising the steps of providing a screw-device comprising a screw-like spiral spring with several windings, wherein the windings of the screw-like spiral spring are closely adjacent with a predetermined narrow space between them, said predetermined narrow space corresponding to the thickness of the vessel walls, and wherein a front winding of the screw-device has a sharp and round end and the screw-device is fully open at a rear winding and inwardly from the plurality of windings; perforating the vessel wall of the receptor vessel using a sharp and round end of the front winding of the screw-device, screwing said screw-device into the vessel wall of the receptor vessel until the vessel wall is held between the closely adjacent windings of the screw-device, then screwing the screw-device into the donor vessel, and then opening the part of the vessel wall of the receptor vessel which is held between the closely adjacent windings of the screw-device.