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US 2004/0111159 A1Published application
Modular bearing surfaces in prosthetic joints
AssigneeDiamicron, Inc.
InventorsBill Jordan Pope, Jeffery Karl Taylor, Richard H. Dixon, Clayton Frank Gardinier, Dean C. Blackburn
Life of this patent
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Abstract
Prosthetic joints, materials thereof, and manufacturing methods are disclosed. The joints may include sintered polycrystalline diamond compacts in modular form.
Claims53
An prosthetic implant including means for aligning and registering superhard segments.
A prosthetic joint component for implantation into a human body comprising:
- (a) a generally hemispherical cup having a concave distal side and a convex proximal side,
- (b) a plurality of bearing component insert receptacles located on said cup distal side,
- each of said insert receptacles being configured to receive and hold a bearing insert therein,
- said insert receptacles extending from said cup distal side into said cup toward said cup proximal side while stopping short of said cup proximal side,
- (c) a plurality of cup fastener receptacles,
- said cup fastener receptacles extending from said cup distal side to said cup proximal side so that a fastener may project through said cup from said cup distal side to said cup proximal side to fasten said cup to human bone,
- (d) a plurality of sintered polycrystalline diamond compact bearing inserts located in said insert receptacles,
- said sintered polycrystalline diamond compact bearing inserts each presenting a diamond load bearing and articulation surface,
- wherein said insert receptacles are spaced apart on said cup so that said inserts installed in said receptacles are spaced apart to present a discontinuous diamond bearing surface;
- wherein a second prosthetic joint component placed in said cup can articulate on said diamond load bearing and articulation surface.
7 more elements
A prosthetic joint component for implantation into a human body comprising:
- (a) a generally hemispherical cup having a concave distal side and a convex proximal side,
- (b) a plurality of bearing component insert receptacles located on said cup distal side,
- each of said insert receptacles being configured to receive and hold a bearing insert therein,
- said insert receptacles extending from said cup distal side into said cup toward said cup proximal side while stopping short of said cup proximal side,
- (c) a plurality of sintered polycrystalline diamond compact bearing inserts located in said insert receptacles,
- said sintered polycrystalline diamond compact bearing inserts each presenting a diamond load bearing and articulation surface,
- wherein a second prosthetic joint component placed in said cup can articulate on said diamond load bearing and articulation surface.
4 more elements
A prosthetic joint component for implantation into a biological organism comprising:
- (a) a generally hemispherical cup having a concave distal side and a convex proximal side,
- (b) a plurality of sintered polycrystalline diamond compact bearing inserts located on said cup distal side,
- said bearing inserts presenting a diamond load bearing and articulation surface.
A prosthetic joint component for implantation into a human body comprising:
- (a) a generally convex substrate,
- said substrate having an exterior surface,
- (b) a plurality of bearing component insert receptacles located on said substrate,
- each of said insert receptacles being configured to receive and hold a bearing insert therein,
- (c) a plurality of sintered polycrystalline diamond compact bearing inserts located in said insert receptacles,
- said sintered polycrystalline diamond compact bearing inserts each presenting a diamond load bearing and articulation surface,
- wherein said insert receptacles are spaced apart on said substrate so that said inserts installed in said receptacles are spaced apart to present a discontinuous diamond bearing surface.
4 more elements
A prosthetic joint component for implantation into a human body comprising:
- (a) a generally convex substrate,
- said substrate having an exterior surface,
- (b) a plurality of bearing component insert receptacles located on said substrate,
- each of said insert receptacles being configured to receive and hold a bearing insert therein,
- (c) a plurality of sintered polycrystalline diamond compact bearing inserts located in said insert receptacles,
- said sintered polycrystalline diamond compact bearing inserts each presenting a diamond load bearing and articulation surface.
3 more elements
A prosthetic joint component for implantation into a biological organism comprising:
- (a) a generally convex substrate,
- said substrate having an exterior surface,
- (b) a plurality of sintered polycrystalline diamond compact bearing components,
- said sintered polycrystalline diamond compact bearing components each presenting a diamond load bearing and articulation surface.
1 more element
Dependencies are inferred from the claim text.