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AssigneeJoint Medical Products Corporation
InventorsCaleb Emerson Brooks, Jan Janusz Krygier, John Dennis Bobyn, Alfred F. DeCarlo, Jr.
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A prosthetic joint system is provided for use when replacement of bone is required. The system includes an elongated stem having a joint motion surface at one end and an outside surface which includes at least one tapered portion, a sleeve for fixation to the patient's bone which has an internal taper for locking engagement with the at least one tapered portion, and a bone replacement element which can be a bone graft. The system includes means for attaching the bone replacement element to the stem at a location between the joint motion surface and the sleeve. In the case of bone grafts, the system can include a second sleeve for implantation in the graft and a second tapered portion on the stem for locking engagement with the second sleeve. Preferably, a series of mating stems, sleeves, and bone replacement elements, or second sleeves in the case of bone grafts, are provided.
A prosthesis for implantation in a bone which has an end for receiving the prosthesis and a medullary canal, said prosthesis comprising:
A prosthesis for implantation in a bone which has an end for receiving the prosthesis, said prosthesis comprising:
A prosthesis for implantation in a bone which has an end for receiving the prosthesis, said prosthesis comprising:
A prosthesis for implantation in a bone which has an end for receiving the prosthesis, said prosthesis comprising:
A prosthesis for implantation in a bone which has an end for receiving the prosthesis, said prosthesis comprising:
A prosthesis for implantation in a bone, said prosthesis comprising two prosthetic elements and a stem for attachment by locking tapers to the two prosthetic elements, said stem comprising an elongated body having a joint motion surface at one end and an outside surface extending away from said joint motion surface, said outside surface including an elongated tapered portion which has a sufficient length to permit attachment of the two prosthetic elements and which is conically shaped with a circular cross section for locking engagement with the two prosthetic elements, each of the two prosthetic elements having an internal taper which is conically shaped with a circular cross section.
A prosthesis for implantation in a bone, said prosthesis comprising a first prosthetic element, a second prosthetic element, and a stem for attachment by locking tapers to the first and second prosthetic elements, said stem comprising an elongated body having a joint motion surface at one end and an outside surface extending away from said joint motion surface, said outside surface including first and second elongated tapered portions each of which is conically shaped with a circular cross section, said first and second tapered portions being separated from one another along the length of the body, said first tapered portion being for locking engagement with the first prosthetic element and said second tapered portion being for locking engagement with the second prosthetic element, each of said two prosthetic elements having an internal taper which is conically shaped with a circular cross section.
Dependencies are inferred from the claim text.