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US 8,999,000 B2Granted
Orthopedic implant with bone interface anchoring
AssigneeZimmer Technology, Inc.
InventorsRobert A. Hodorek, Antony J. Lozier, Cheryl R. Blanchard
Life of this patent
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Abstract
A cartilage resurfacing implant is provided for replacing cartilage of an articulating portion of a bone at a skeletal joint having opposed joint surfaces. The cartilage resurfacing implant includes a body having a bearing surface and a bone interface. The bearing surface is able to support articulation with an opposing joint surface.
Claims10
An orthopedic implant comprising:
- a flexible body having a bearing surface and a bone interface;
- at least a portion of said bearing surface comprising a polymeric material selected from one or more of a polyolefin, polyester, polyimide, polyacrylate, polyketone;
- said bone interface comprising a porous metal substrate and a plurality of reinforcing porous fibers embedded in the implant, said reinforcing porous fibers adapted for anchoring said implant to a bone of a subject at said bone interface, wherein said reinforcing porous fibers are distributed across the entire bone interface surface to spread the fixation load evenly over the bone interface, wherein said reinforcing porous fibers form bristles distributed across the bone interface and extending freely therefrom, and wherein said bristles are comprised of a porous metal.
Dependencies are inferred from the claim text.