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US 2003/0149486 A1Published application
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.
Claims25
An apparatus for repairing a fractured humeral bone, comprising:
- a shoulder prosthesis;
- and
- a positioning jig for positioning the shoulder prosthesis at a desired height in the medullary canal of the humeral bone, the positioning jig including
- a first mechanism configured to engage a broken or cut surface of the humeral bone, and
- a second mechanism coupled to the first mechanism and configured to engage and hold the shoulder prosthesis at the desired height relative to the broken or cut surface of the humeral bone.
2 more elements
An apparatus for repairing a fractured humeral bone, comprising:
- a shoulder prosthesis having a shaft positionable within the medullary canal of a humeral bone, the shaft including a plurality of spaced reference marks, the reference marks being disposed along the shaft and configured for measuring height;
- and
- a positioning jig for positioning the shoulder prosthesis at a desired height in the medullary canal, the positioning jig including
- a first mechanism configured to engage a portion of the upper arm, and
- a second mechanism coupled to the first mechanism and configured to engage and hold the shoulder prosthesis at the desired height relative to the portion of the upper arm.
2 more elements
An apparatus for repairing a fractured humeral bone, comprising:
- a shoulder prosthesis having a shaft positionable within the medullary canal of a humeral bone, the shaft defining one or more holes;
- and
- a positioning jig for positioning the shoulder prosthesis at a desired height in the medullary canal, the positioning jig including
- a first mechanism configured to engage a portion of the upper arm,
- a second mechanism coupled to the first mechanism and configured to engage and hold the shoulder prosthesis at the desired height relative to the portion of the upper arm, and
- a third mechanism coupled to the second mechanism and configured to target one or more locations on the humeral bone corresponding to the one or more holes defined by the shaft of the shoulder prosthesis.
3 more elements
A method of placing a shoulder prosthesis in a humeral bone, comprising:
- providing a positioning jig configured to attach to the shoulder prosthesis;
- inserting the shoulder prosthesis into the humeral bone;
- and
- stabilizing the height of the shoulder prosthesis in the humeral bone by attaching the positioning jig to the shoulder prosthesis and placing at least a portion of the positioning jig against a broken or cut surface of the humeral bone.
1 more element
A method of positioning a shoulder prosthesis in a humeral bone, comprising:
- providing a trial prosthesis having a shaft with spaced reference marks;
- positioning the shaft of the trial prosthesis in the medullary canal of the humeral bone using a positioning jig that holds the trial prosthesis at a desired position relative to an exposed site of the humeral bone;
- noting a location of a selected reference mark on the shaft relative to the exposed site of the humeral bone, when the trial prosthesis is in the desired position;
- removing the trial prosthesis;
- providing a shoulder prosthesis having spaced reference markings that correspond to the spaced reference marks of the trial prosthesis;
- and
- positioning the shoulder prosthesis in the humeral bone to replicate the location of the selected reference mark with a corresponding reference marking on the shoulder prosthesis.
4 more elements
An apparatus for repairing a fractured humeral bone, comprising:
- a shoulder prosthesis;
- and
- a positioning jig for positioning the shoulder prosthesis at a desired height in the medullary canal of the humeral bone, the positioning jig including
- a first mechanism configured to engage a portion of the humeral bone,
- a second mechanism configured to engage and hold the shoulder prosthesis at the desired height relative to the humeral bone, and
- a third mechanism coupling the first mechanism movably to the second mechanism and configured to convert an adjustment motion of the third mechanism into a distinct motion of the first mechanism relative to the second mechanism.
3 more elements
Dependencies are inferred from the claim text.