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US 8,939,986 B2Granted
Surgical instruments for use in surgically preparing a tibia for implantation of a prosthetic component
AssigneeDepuy (Ireland)
InventorsDavid W. Waite, II, Scott M. Thomas, Duncan G. Young, Matthew S. Wallace, Duncan J. Beedall
Life of this patent
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Abstract
Orthopaedic surgical instruments including a base trial adapted to be positioned on a proximal end of a patient's resected tibia, and a guide tower including a tower base adapted to be positioned on the base trial. A method of use is also described.
Claims20
An orthopaedic surgical instrument assembly comprising:
- a base trial adapted to be positioned on a proximal end of a patient's resected tibia, the base trial including a plate having (i) an opening defined therein, and (ii) a pair of fixation pin holes defined in an anterior aspect, and
- a guide tower including (i) a tower base adapted to be positioned on the base trial, the tower base having a passageway defined therein that is configured to be substantially aligned with the opening of the plate when the tower base is positioned on the base trial, and (ii) a pair of fixation pins, each of the fixation pins extending downwardly from an end secured to an anterior aspect of the bottom surface of the tower base to a tip, and each of the fixation pins being sized to be received in and extend outwardly from each of the fixation pin holes of the base trial when the tower base is positioned on the base trial.
An orthopaedic surgical instrument assembly comprising:
- a base trial adapted to be positioned on a proximal end of a patient's resected tibia, the base trial including a plate having an opening defined therein, and
- a guide tower including a tower base adapted to be positioned on the base trial, the tower base having (i) an anterior surface, (ii) an inner surface defining a passageway that is configured to be substantially aligned with the opening of the plate when the tower base is positioned on the base trial, (iii) a first aperture extending inwardly from the anterior surface to the inner surface such that the first aperture is in communication with the passageway, and (iv) a second aperture extending inwardly from the anterior surface to the inner surface such that the second aperture is in communication with the passageway, the second aperture being positioned above the first aperture.
An orthopaedic surgical instrument assembly comprising:
- a guide tower for a surgical drill, the guide tower comprising:
- a tower base including (i) an anterior aspect having an anterior surface, (ii) an inner surface defining a vertically-extending passageway, (iii) a first aperture, the first aperture extending orthogonally relative to the passageway from the anterior surface to the inner surface such that the first aperture is in communication with the passageway, and (iv) a second aperture positioned above the first aperture, the second aperture extending orthogonally relative to the passageway from the anterior surface to the inner surface such that the second aperture is in communication with the passageway;
- and
- a pair of fixation pins extending downwardly from the anterior aspect of the tower base, each fixation pin being configured to be inserted into a proximal end of a patient's resected tibia.
1 more element
Dependencies are inferred from the claim text.