HIP IMPLANT

摘要

A system and method for forming a hip implant offering minimal invasiveness is described. The system comprises means for positioning the implant under optical and X-ray control, an implant and an applicator for screwing and expanding the implant. The implant includes an insert body and an expansion tube with cut-outs and slits defining legs. The legs expand radially through windows in the insert body when the expansion tube is pushed against the sloped distal portion of the insert body. The expansion process may be ensured by using an anti-rotation device to prevent the insertion tube from rotating within the insert body. Applicator and implant are provided with means preventing cold welding during the implantation process.

主权项

1. A system for a hip implant comprising:
a) an insert body having a proximal portion having a screw thread for screwing the insert body into a femoral bone and a distal portion separated from the proximal portion by at least two arms defining windows therebetween, b) an expansion tube with cut-outs and at least two slits, the expansion tube fitting into said insert body, said at least two slits defining at least two legs; and c) an applicator to which said insert body can be attached for screwing the insert body into the femoral bone.