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US 9,314,257 B2Granted
Surgical instruments and method 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.
Claims18
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, the opening including a first central opening and a first pair of elongated openings extending outwardly from the first central opening, 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 extending downwardly from an anterior aspect of the tower base, 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,
- wherein the passageway extends downwardly from a second central opening and a second pair of elongated openings extending outwardly from the second central opening that are defined in the tower base, and
- wherein the second central opening and the second pair of elongated openings are configured to be substantially aligned with the first central opening and the first pair of elongated openings, respectively, when the tower base is positioned on the base trial.
1 more element
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 a first central opening and a first pair of elongated openings extending outwardly from the first central 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 opening defined in a superior surface, the opening including a second central opening and a second pair of elongated openings extending outwardly from the second central opening, (iii) an inner surface extending inferiorly from the second central opening and the second pair of elongated opening to define a passageway that is configured to be substantially aligned with the first opening and the first pair of elongated openings of the plate when the tower base is positioned on the base trial, and (iv) a first aperture extending inwardly from the anterior surface to the inner surface such that the first aperture is in communication with the passageway.
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 opening defined in a superior surface, the opening including a second central opening and a second pair of elongated openings extending outwardly from the second central opening, (iii) an inner surface extending inferiorly from the second central opening and the second pair of elongated opening to define a vertically-extending 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.
Dependencies are inferred from the claim text.