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US 2014/0276859 A1Published application
Femoral orthopaedic surgical instruments for setting offset
AssigneeDepuy (Ireland)
InventorsRebecca L. Chaney, Craig S. Tsukayama, Joseph G. Wyss, Phillip G. Withee
Life of this patent
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Abstract
A number of orthopaedic surgical instruments for use in a surgical procedure to prepare a patient's femur to receive an orthopedic prosthesis. The tools include guide tools, cutting tools, surgical blocks, and other orthopaedic surgical instruments configured to plan and guide the preparation of the patient's femur. A method of using the orthopaedic surgical instruments is also disclosed.
Claims20
An orthopaedic surgical instrument assembly, comprising:
- a cutting block comprising:
- a base plate, and
- a pair of curved arms extending posteriorly from the base plate, each curved arm including a posterior surface and a cutting guide defined in the posterior surface,
- a stem trial positioned proximal to the base plate of the cutting block, and
- an offset tool having a proximal end coupled to the stem trial and a distal end coupled to the cutting block, wherein:
- (i) the proximal end defines a first axis and the distal end defines a second axis extending parallel to the first axis, and (ii) the proximal end of the offset tool is configured to pivot relative to the distal end.
3 more elements
An orthopaedic surgical instrument assembly, comprising:
- a surgical block having a proximal surface, a distal surface opposite the proximal surface, and a slot extending through the proximal surface and the distal surface,
- a guide block including a mounting bracket positioned in the slot and removably coupled to the surgical block,
- an offset tool including (i) a first shaft extending through a cylindrical passageway defined in the guide block, the first shaft defining a first axis, and (ii) a second shaft pivotally coupled to the first shaft, and
- a stem trial secured to the second shaft of the offset tool, wherein an oblique angle is defined between the first axis and an imaginary plane defined by the proximal surface of the surgical block.
1 more element
An orthopaedic surgical instrument assembly, comprising:
- an offset tool including (i) a first shaft defining a first axis, (ii) a second shaft pivotally coupled to the first shaft, and (iii) a locking mechanism configured to prevent relative movement between the first shaft and the second shaft,
- a stem trial secured to the second shaft of the offset tool, the stem trial including an elongated body that defines a second axis extending parallel to the first axis, and
- a cannulated reamer including an aperture sized to receive the first shaft of the offset tool.
Dependencies are inferred from the claim text.