Implant components and methods
AssigneeSmith & Nephew, Inc.
InventorsJustin Steve Conway, Ryan L. Landon, Jeffrey Joel Shea
Life of this patent
Estimating the term…
Abstract
Systems, devices, and methods are provided for orthopedic implants. The implants may include a base member, such as an acetabular shell or an augment, that is configured to couple with an augment, flange cup, mounting member, or any other suitable orthopedic attachment. Any of the implantable components may be include one or more porous surfaces. The porous surface may be textured by protrusions that connect to and extend from the surface. The sizes and concentration of the protrusions may be varied for specific applications to accommodate different implants and patient anatomies. A porous implant may also include one or more internal or external solid portions that strengthen the implant.
Claims29
An implantable orthopedic device, comprising:
- an implant having a porous surface defining a plurality of pores sized to accommodate bone-ingrowth into the implant, the implant further including a plurality of protrusions extending from the porous surface and which rise above the porous surface;
- wherein the plurality of protrusions has a concentration between about 0.25 protrusions per square millimeter and about 6 protrusions per square millimeter;
- and
- wherein the plurality of protrusions are configured to frictionally engage a bone surface without interfering with bone ingrowth into the plurality of pores.
An implantable orthopedic device, comprising:
- an implant having a porous surface defining a plurality of pores sized to accommodate bone-ingrowth into the implant, the implant further including a plurality of rounded protrusions extending from the porous surface and which occupy approximately 10% to approximately 60% of the porous surface;
- and
- wherein the protrusions are configured to frictionally engage a bone surface without interfering with bone ingrowth into the plurality of pores.
An implantable orthopedic device, comprising:
- an implant having a porous surface defining a plurality of pores sized to accommodate bone-ingrowth into the implant, the implant further including a plurality of blunt protrusions extending from the porous surface and which occupy approximately 10% to approximately 60% of the porous surface;
- wherein the pores have a size of approximately 50 microns to 1000 microns;
- wherein the protrusions rise above the porous surface to a height between about 50 microns and about 2,000 microns;
- and
- wherein the protrusions are configured to frictionally engage a bone surface without interfering with bone ingrowth into the plurality of pores.
Dependencies are inferred from the claim text.