Abstract: A gastric ring includes a band that surrounds the wall of the stomach of a patient, and structure that makes it possible, after implantation, to modify the cross section of the opening delimited by the ring.

Abstract: A gastric ring includes a band that surrounds the wall of the stomach of a patient, and structure that makes it possible, after implantation, to modify the cross section of the opening delimited by the ring.

Abstract: A gastric ring includes a band that surrounds the wall of the stomach of a patient, and structure that makes it possible, after implantation, to modify the cross section of the opening delimited by the ring.

Abstract: This gastric ring comprises a band which is able to surround the wall of the stomach, and means with which it is possible, after implantation, to modify the cross section of the opening delimited by the ring. According to the invention, the band comprises at least one zone made of a material which is elastically deformable in the longitudinal direction of this band; said zone has at least two bearing points formed on it at two locations separated in the longitudinal direction of the band, and the ring comprises at least one rigid element made of a bioabsorbable material and bearing against said zone in the area of said bearing points, this rigid element, before absorption, making it possible to maintain said bearing points at a distance from one another different than the distance separating these two bearing points in the absence of elastic deformation of said zone of the bands, and, after absorption, no longer forming an obstacle to the return of said zone of the band to its nondeformed state.