A medical closure device (20) is provided, comprising a tubular member (21) provided with first struts (22) that extend between a first end portion (24) and a central portion (25) and second struts (23) that extend between said central portion (25) and a second end portion (26), each strut being provided...http://www.google.fr/patents/US20070225755?utm_source=gb-gplus-shareBrevet US20070225755 - Closure device