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US 8,337,503 B2Granted
Custom radiographically designed cutting guides and instruments for use in total ankle replacement surgery
OwnerGeorge John Lianinventor
Life of this patent
Estimating the term…
Abstract
A system comprised of custom radiographically designed tibial and talar cutting guides, a tibial reaming guide and bit, and instrumentalities for use in total ankle replacement surgery and a computer-based system and method for making the custom radiographically designed tibial and talar cutting guides.
Claims12
A custom radiographically designed cutting guide system for use in total ankle replacement surgery, said system comprising:
- a tibial reaming guide;
- a tibial cutting guide having a first posterior surface portion with a topography that is a preoperatively defined negative of an anterior topography of a distal portion of a tibia of a patient to fit said first posterior surface portion of said tibial cutting guide to the distal portion of the tibia in one unique position;
- said tibial cutting guide having a second posterior surface portion anteriorly recessed from said first posterior surface portion at a preoperatively defined distance from a central longitudinal axis of the tibia for defining a tibial reaming guide locator notch anteriorly recessed from said first posterior surface portion and configured to receive at least a portion of said tibial reaming guide;
- and said tibial cutting guide having at least one slit to guide a cutting instrument to make at least one cut in the distal portion of the tibia of the patient with said tibial cutting guide in said one unique position wherein at least the one cut is in a boundary of a segment of the distal portion of the tibia to resect during total ankle replacement surgery.
1 more element
Dependencies are inferred from the claim text.