Circular fixator system and method
AssigneeWright Medical Technology, Inc.
InventorsDaniel E. Free, Robert M. Howles, Elizabeth J. Phelps, Kian-Ming Wong, Braham Dhillon
Life of this patent
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Abstract
A device comprises a base. A support is attached to the base. The support is shaped to receive a calf of a person and adapted to receive a wire or pin for securing a tibia of a person. A foot plate is attachable to the base. The foot plate has a plurality of attached members. The members are configured for receiving at least a first wire or pin to fix a foot of the person relative to the foot plate while the foot plate is oriented normal to a superior-inferior direction of the foot. The foot plate is rotatable relative to the base while the foot plate is attached to the base.
Claims7
A method, comprising
- cutting a talus of a person along a transverse plane to form a cut surface of the talus, wherein the talus has a void in the cut surface, the void having a size and a location;
- fitting a talar component to the cut surface of the talus;
- inserting a plurality of wires or pins through the talar component into the talus;
- removing the talar component;
- sliding a reamer base over the plurality of wires or pins into a position on the talus, the reamer base having an arm;
- attaching a reamer to the arm, the reamer having a size corresponding to the size of the void;
- rotating the reamer to ream the cut surface at the location of the void, so the reamer moves a predetermined distance while reaming the cut surface, to enlarge the void to receive an augment component having a predetermined size and shape.
A method, comprising
- cutting a talus of a person along a transverse plane to form a cut surface of the talus, wherein the talus has a void in the cut surface, the void having a size and a location;
- fitting a talar component to the cut surface of the talus;
- inserting a plurality of wires or pins through the talar component into the talus;
- removing the talar component;
- sliding a reamer base over the plurality of wires or pins into a position on the talus, the reamer base having an arm;
- attaching a reamer to the arm, the reamer having a size corresponding to the size of the void, the reamer having a stop;
- rotating the reamer to ream the cut surface at the location of the void, until the stop engages the arm, so the reamer moves a predetermined distance while reaming the cut surface, to enlarge the void to receive an augment component having a predetermined size and shape;
- implanting a talar component having the augment component in the talus of the person, so that the void receives the augment component;
- and
- implanting a tibial component in a tibia of the person, the tibial component configured for articulating motion relative to the talar component.
Dependencies are inferred from the claim text.