Constriction device (1) which can be at least partially implanted in the human or animal body, comprising a constriction member (2) forming a ring in its operational configuration, said constriction member including a flexible band (12), of which the two ends (12a, 12b) are adjacent to one another in...http://www.google.fr/patents/US6547801?utm_source=gb-gplus-shareBrevet US6547801 - Gastric constriction device
