An annuli pair provide an anastomotic clamp. Each operatively associated, opposed face of the annuli pair has a plurality of serrated impaling pins and tang-containing apertures that lockingly associated in assembly for anastomosis. The back surface of each annulus is substantially recessed about each...http://www.google.co.uk/patents/US5336233?utm_source=gb-gplus-sharePatent US5336233 - Anastomotic device
