Patent ID: 6547801
Filing Date: 2003-04-15
Classification: A61B,A61F

Abstract:
A gastric constriction device which is at least partially implanted in a human or animal body, comprising a constriction member (2) forming a ring having a maximum transverse section in its operational configuration, said ring including a flexible band (12) having a mobile end and a fixed end, the two ends (12a, 12b) are adjacent to one another in the operational configuration, corresponding to the maximum transverse section of said ring, the mobile end (12b) of the flexible band (12) includes a tractile element (13), and a means (3) for actuating the ring-forming member (2) to pull the tractile element, and to move said mobile end (12b) relative to the fixed end (12a), generating a radial deformation of the constriction member, wherein the fixed end (12a) of the flexible band (12) is traversed by a longitudinal and open slit (17a) which is bordered by two wings (17b), said slit receiving, in an overlapping manner, a reduced width curved tongue (13a) of the tractile element (13), further wherein the relative and concentric movement of the mobile end into the fixed end regulates the transverse section of the flexible band, causing the ring-forming member to form the gastric constriction device.