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US 6,494,913 B1Granted
Shoulder prosthesis
AssigneeAcumed LLC
InventorRandall J. Huebner
Life of this patent
Estimating the term…
Abstract
A system and method for installing a shoulder prosthesis. The method includes removing the original humeral head and shaping the proximal end of the humerus with one or more implements to prepare the humerus to receive the shoulder prosthesis.
Claims55
A method of resecting a humeral-head in preparation for installing a shoulder prosthesis in a patient, comprising:
- forming a bore in the medullary canal of the humerus with a reamer;
- defining a desired resection-surface in the head of the humerus relative to the reamer positioned within the medullary canal;
- maintaining the reamer inserted in the medullary canal;
- and
- forming the desired resection-surface with one or more cutting instruments;
- wherein the step of defining includes mounting a cutting guide on the reamer, the cutting guide being adapted to guide one or more of the cutting instruments to form the desired resection-surface, the cutting guide further being adapted to engage a shoulder on at least one of the cutting instruments to limit the cutting depth of the instrument;
- and
- wherein the at least one cutting instrument includes a counter-bore receivable by the cutting guide.
5 more elements
A method of resecting a humeral-head in preparation for installing a shoulder prosthesis in a patient, comprising:
- forming a bore in the medullary canal of the humerus with a reamer;
- defining a desired resection-surface in the head of the humerus relative to the reamer positioned within the medullary canal;
- maintaining the reamer inserted in the medullary canal;
- forming a coarse resection of the humeral-head;
- and
- forming the desired resection-surface with one or more cutting instruments, after the step of forming a coarse resection of the humeral-head.
3 more elements
A method of resecting a humeral-head in preparation for installing a shoulder prosthesis in a patient, comprising:
- forming a bore in the medullary canal of the humerus with a reamer;
- defining a desired resection-surface in the head of the humerus relative to the reamer positioned within the medullary canal;
- maintaining the reamer inserted in the medullary canal;
- and
- forming the desired resection-surface with one or more cutting instruments;
- wherein the step of forming the desired resection-surface includes cutting into the humeral-head along a direction generally perpendicular to the desired resection-surface.
3 more elements
Dependencies are inferred from the claim text.