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US 7,611,516 B2Granted
Bone resection apparatus
AssigneeDePuy Products, Inc.
InventorBrian J. Maroney
Life of this patent
Estimating the term…
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.
Claims19
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, 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.
4 more elements
A bone resection apparatus, comprising:
- 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.
1 more element
A bone resection apparatus, comprising:
- 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.
1 more element
Dependencies are inferred from the claim text.