Patent ID: 6666889
Filing Date: 2003-12-23
Classification: A61F

Abstract:
A lumbar intersomatic implant for insertion into a discal space between two adjacent vertebrae for reestablishing the anatomical intervertebral space, the implant being a generally rectangular cage having inner and outer sagittal walls interconnected by at least an anterior transverse wall and a posterior transverse wall, the sagittal and transverse walls defining between them an open volume for filling with bone,wherein the outer sagittal wall of the implant presents: a top rim and a bottom rim each shaped to present at least one retention edge extending substantially in the sagittal plane, facilitating the insertion into the discal space via a posterior path; and an outer face comprising a penetration-assisting shape enabling the cage to be offset transversely to a locking position in the discal space, which position is maintained by the at least one retention edge preventing the cage from being reversed transversely.