Patent ID: 7704281
Filing Date: 2010-04-27
Classification: A61B

Abstract:
1. An intervertebral implant for the lumbo-sacral joint, the intervertebral implant comprising: a spacer adapted to fix between the fifth lumbar vertebra and the sacral vertebra articulated thereto; and a strap; and wherein said spacer comprises a body, said body comprises a top end face and a bottom end face opposite the top end face; wherein the top end face comprises a groove that extends along a midplane of the spacer, and wherein the groove comprises a first side and a second side, wherein between the first side and the second side the groove is adapted to receive the spinous process of said lumbar vertebra, wherein the first side of the groove comprises a first opening, wherein the second side of the groove comprises a second opening, wherein a first end of the strap is passed into the first opening of the first side of the groove, wherein the second end of the strap is passed into the second opening of the second side of the groove, wherein the bottom end face comprises a longitudinal housing, said longitudinal housing extends orthogonal to the groove, and wherein the longitudinal housing is concave to receive and rest directly on a top portion of the convex sacral vertebra; wherein the body of said spacer presents first and second opposite side faces into which said groove opens out, and presents at its bottom end an extension having a first side extending along the first side face and a second side that is apposite from its first side and that defines a setback relative to the second side face of the body of the spacer, and wherein the spacer includes a tab of width narrower than the width of the body of the spacer in a direction orthogonal to the midplane of the spacer, connected to the body of the spacer, and extending facing the second side of said extension in such a manner that an inside face of said tab facing the second side of the extension cooperates with said second side to define the outline of said housing.