Bone resection apparatus
First Claim
Patent Images
1. A bone resection apparatus, comprising:
- an intramedullary broach configured to be received in a humerus, a proximal portion of said intramedullary broach having a fastener hole defined therein;
a support block (i) having a mortise structure, and (ii) defining a passage that is aligned with said hole of said intramedullary broach;
a tool guide having (i) tenon structure that mates with said mortise structure of said support block, and (ii) a guide surface positioned and configured to guide movement of a bone shaping tool during resection of a greater tubercle from said humerus; and
a fastener advanced through said passage of said support block and into said hole of said intramedullary broach, whereinsaid proximal portion of said intramedullary broach has a slot defined therein, andsaid support block includes a positioning tab located in said slot when said support block is attached to said intramedullary broach.
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Abstract
A surgical assembly for resecting a greater tubercle from a humerus of a patient during performance of a shoulder replacement procedure. The surgical assembly includes a cutting tool for resecting the greater tubercle from the humerus. The surgical assembly also includes a tool guide member having a tool guide surface defined therein. The tool guide surface is configured to position the cutting tool in a predetermined position relative to the greater tubercle of the humerus.
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Citations
19 Claims
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1. A bone resection apparatus, comprising:
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an intramedullary broach configured to be received in a humerus, a proximal portion of said intramedullary broach having a fastener hole defined therein; a support block (i) having a mortise structure, and (ii) defining a passage that is aligned with said hole of said intramedullary broach; a tool guide having (i) tenon structure that mates with said mortise structure of said support block, and (ii) a guide surface positioned and configured to guide movement of a bone shaping tool during resection of a greater tubercle from said humerus; and a fastener advanced through said passage of said support block and into said hole of said intramedullary broach, wherein said proximal portion of said intramedullary broach has a slot defined therein, and said support block includes a positioning tab located in said slot when said support block is attached to said intramedullary broach. - View Dependent Claims (2, 3)
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4. A bone resection apparatus, comprising:
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an intramedullary broach configured to be received in a humerus, the intramedullary broach including a first positioning feature; a support block attached to said intramedullary broach, said support block having a first coupling structure, and having a second positioning feature configured to interact with the first positioning feature to establish a predetermined rotational orientation of the support block on the intramedullary broach; and a tool guide having (i) a second coupling structure that mates with said first coupling structure of said support block, and (ii) a guide surface defining a resection plane to guide movement of a bone shaping tool during resection of a greater tubercle from said humerus along the plane. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A bone resection apparatus, comprising:
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an intramedullary broach including a distal end portion defining a longitudinal axis, the distal end portion configured to be received in a humerus, and including a generally planar mounting surface extending in a plane that is canted with respect to the longitudinal axis; a support block configured to be clamped against said planar mounting surface of said intramedullary broach and having a mortise structure; and a tool guide having (i) a tenon structure that mates with said mortise structure of said support block, and (ii) a guide surface positioned and configured to guide movement of a bone shaping tool during resection of a greater tubercle from said humerus. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification