Bone implant
AssigneeMJP Innovations, Inc.
InventorMarc Joseph PHILIPPON
Life of this patent
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Abstract
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.
Claims15
1-24. (canceled)
A system for a bone implant, the bone implant comprising:
- a) an insert body having a proximal end, a mid-point, and a distal end, the insert body further having a proximal portion substantially adjacent the proximal end of the insert body, the proximal portion adapted for affixing to cortical bone for affixing the insert body into cortical bone and a distal portion separated from the proximal portion by at least two arms defining windows therebetween,
- b) an expansion tube fitting into said insert body, said cut-outs defining adjacent legs;
- and
- c) an applicator to which said insert body can be attached for affixing the insert body into the bone prior to pressing the expansion tube into the insert body, the pressing splaying the at least two legs in a distal direction so as to agitate cancellous bone, wherein the insert body further including a flange that is adapted to interface with the applicator.
A bone implant comprising:
- (a) an insert body having a proximal end, a mid-point, and a distal end, the insert body further having a proximal portion substantially adjacent the proximal end of the insert body, the proximal portion for affixing the insert body into a cortical bone and a distal portion separated from the proximal portion by at least two arms defining windows therebetween, the insert body further including a flange that interrupts the thread and is adapted to interface with an applicator;
- and
- (b) an expansion tube fitting into said insert body, said at least two slits defining at least two distally directed legs.
Dependencies are inferred from the claim text.