A tissue punch for creating a hole in the wall of a target blood vessel for receiving an anastomosis device includes a piercing element for penetrating the tissue and a cutting element for cutting a plug of tissue around the pierced hole. The tissue punch includes a trocar for inserting the piercing...http://www.google.fr/patents/US7144405?utm_source=gb-gplus-shareBrevet US7144405 - Tissue punch
