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US 12,690,783 B2Granted
Ligament balancing tool and method for same
AssigneeGlobus Medical, Inc.
InventorsJason Zappacosta, Khiem Pham, Hayden Cameron
Life of this patent
Estimating the term…
Abstract
A ligament balancing system includes a shaft, an array of trackers attached to the shaft, a plunger movably coupled to the shaft and shaped to push against a leg, a force tracking marker attached to the plunger, and a spring coupled to the shaft and the plunger. The spring is configured to be compressed when the plunger pushes against the leg such that a distance between the force tracking marker and the array of trackers changes.
Claims20
A ligament balancing system comprising:
- a shaft defining a longitudinal axis;
- an array of trackers attached to the shaft and configured to be tracked by a tracking device;
- a plunger movably coupled to the shaft and shaped to push against a leg;
- a force tracking marker attached to the plunger and configured to be tracked by the tracking device;
- a spring coupled to the shaft and the plunger, and configured to move when the plunger pushes against the leg such that a distance between the force tracking marker and the array of trackers changes.
2 more elements
A ligament balancing system comprising:
- a tracking device;
- a ligament balancing tool having;
- a base defining a longitudinal axis;
- a first array of trackers attached to the base and configured to be tracked by the tracking device;
- a plunger movably coupled to the base and shaped to push against a leg;
- a force tracking marker attached to the plunger and configured to be tracked by the tracking device such that when the plunger pushed against the leg a distance between the force tracking marker and the array of trackers changes;
- a second array of trackers configured to be attached to a femur;
- a third array of trackers configured to be attached to a tibia;
- a processor configured to detect the position of the force tracking marker relative to the first array of trackers as the distance changes.
6 more elements
Dependencies are inferred from the claim text.