Knee arthroplasty with modular femoral adapters
OwnerStephen J. INCAVOinventor
Life of this patent
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Abstract
An arthroplasty system may include a first prosthesis to be fixed to a first bone of a joint, a second prosthesis to be fixed to a second bone of the joint for articulation with the first prosthesis, and one or more adapters to be fixed to the first prosthesis for articulation with the second prosthesis to modify the stability of the second prosthesis relative to the first prosthesis. The system may include one or more articular inserts to be coupled to the second prosthesis for articulation with the first prosthesis and/or the adapter(s). The articular inserts may be fixed or mobile bearing relative to the second prosthesis. Each adapter and corresponding articular insert may modify stability differently.
Claims20
An arthroplasty system for a joint between a first bone and a second bone, the system comprising:
- a first arthroplasty prosthesis with a receptacle, wherein the first arthroplasty prosthesis is configured to be fixed to the first bone and to articulate against a second arthroplasty prosthesis which is configured to be fixed to the second bone, so as to provide a range of motion between the first and second arthroplasty prostheses;
- and
- an adapter removably fixed in the receptacle, wherein the adapter comprises a first constraint feature for constrained articulation against a complementary second constraint feature of the second arthroplasty prosthesis to modify the range of motion.
An arthroplasty system for a joint between a first bone and a second bone, the system comprising:
- a first arthroplasty prosthesis configured to be fixed to the first bone, wherein the first arthroplasty prosthesis comprises a receptacle;
- an adapter removably fixed in the receptacle, wherein the adapter comprises a first constraint feature;
- and
- a second arthroplasty prosthesis configured to be fixed to the second bone, wherein the first and second arthroplasty prostheses articulate together to provide a range of motion between the first and second arthroplasty prostheses, wherein the second arthroplasty prosthesis comprises a second constraint feature that articulates against the first constraint feature to increase stability of the first arthroplasty prosthesis relative to the second arthroplasty prosthesis.
An arthroplasty system for a joint between a first bone and a second bone, the system comprising:
- an adapter comprising a first constraint feature, wherein the adapter is removably fixable to a first arthroplasty prosthesis, wherein the first arthroplasty prosthesis is configured to be fixed to the first bone;
- and
- a second arthroplasty prosthesis comprising a second constraint feature, wherein the second arthroplasty prosthesis is configured to be fixed to the second bone and to articulate against the first arthroplasty prosthesis;
- wherein the second constraint feature articulates against the first constraint feature to increase stability of the first arthroplasty prosthesis relative to the second arthroplasty prosthesis.
Dependencies are inferred from the claim text.