Apparatus and method for minimally invasive total joint replacement
AssigneeAlexandria Research Technologies, LLC
InventorsWesley D. Johnson, Gerard Engh
Life of this patent
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Abstract
A method and apparatus for minimally invasive total joint replacement. The method involves sculpting the articular surface of a second bone that normally articulates with a first bone by attaching a bone sculpting tool directly or indirectly to the first bone with the tool in bone sculpting engagement with the articular surface of the second bone, and then sculpting the articular surface of the second bone with the joint reduced and moving one bone with respect to the other. An implant is placed to replace the articular surface of the second bone using an impaction device directly or indirectly attached to the first bone, wherein the force to place the implant is reacted by the second bone and the first bone.
Claims59
An apparatus for sculpting the articular surface of a second bone that normally articulates with a first bone, the apparatus comprising:
- a bone sculpting tool including an attachment portion for attaching the bone sculpting tool to the first bone in a position for sculpting the articular surface of the second bone.
A method of sculpting the articular surface of a second bone that normally articulates with a first bone in a joint, the method comprising the steps of:
- providing a bone sculpting tool;
- attaching the bone sculpting tool to the first bone in a position for sculpting the articular surface of the second bone;
- aligning the bone sculpting tool with the second bone;
- and
- sculpting the articular surface of the second bone by engaging the bone sculpting tool with the articular surface of the second bone.
A system for minimally invasive sculpting and replacing the articular surface of a second bone that normally articulates with a first bone, the system comprising:
- a bone-sculpting apparatus comprising a bone-sculpting tool including a tool attachment portion for attaching the bone sculpting tool to the first bone in a position for sculpting the articular surface of the second bone;
- and
- an impaction apparatus for providing force between the first bone and the second bone, the impaction apparatus comprising an impaction device including an impaction attachment portion for attaching the impaction device to the first bone.
A method of sculpting, in a surgical site, the articular surface of a second bone that normally articulates with a first bone, the method comprising the steps of:
- providing a bone sculpting tool;
- attaching the bone sculpting tool to the first bone;
- aligning the bone sculpting tool with the second bone and sculpting the articular surface of the second bone by engaging the bone sculpting tool with the articular surface of the second bone;
- providing an implant;
- providing an impaction apparatus comprising an impaction device configured for attachment to the first bone;
- attaching the impaction apparatus to the first bone;
- placing the implant on the impaction apparatus and imparting force to the implant to secure the implant to the second bone, the force being reacted by the second bone and the first bone.
Dependencies are inferred from the claim text.