Patent ID: 11890205
Assignee: WARSAW ORTHOPEDIC, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A method for treating a spine, the method comprising:
positioning a distal end of a cannulated shaft of a surgical instrument into an intervertebral cavity, the surgical instrument including a tracking device oriented relative to a sensor to communicate a signal representative of a position of the distal end of the cannulated shaft of the surgical instrument relative to the intervertebral cavity;
operating a display to display an image of the intervertebral cavity:
operating a navigation system to track at a first time the distal end of the cannulated shaft at a first position within the intervertebral cavity:
operating the navigation system to track at a second time the distal end of the cannulated shaft at a second position within the intervertebral cavity;
operating a processor to:
project overlapping images of spheres on the displayed image of the intervertebral cavity based on at least the first position and the second position;
determine a volume of the intervertebral cavity based on the data projected overlapping images of spheres; and
delivering bone graft through the cannulated shaft and into the intervertebral cavity.