Osteotomy procedure
First Claim
1. A localization device for use in an osteotomy procedure to remove a wedge from a bone by making first and second cuts in the bone to reshape said bone, wherein, prior to removing said wedge, said bone extends between a first position corresponding to a first end of said bone and a second position corresponding to a second end of said bone and wherein, after removing said wedge, said second end of said bone is relocated to a third position such that a desired correction angle is produced between a first vector extending from the first position to the second position and a second vector extending from the first position to the third position, said device comprising:
- sensors for sensing information corresponding to the locations of markers associated with one or more of the bones and one or more surgical instruments;
a computer coupled to said sensors for tracking the markers;
means for recording an angle and depth of the first cut;
means for determining a pivot point within the recorded first cut in the bone; and
means for calculating a resection angle for making the second cut relative to the recorded first cut that will produce the desired correction angle when the wedge is removed from the bone.
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Accused Products
Abstract
An osteotomy resection procedure for removing a wedge from a bone utilizing a localization device. The localization device being used to track reference points associated with the bone, track surgical instruments, perform calculations to determine a resection angle for the wedge, and assist a surgeon in performing the procedure.
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Citations
16 Claims
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1. A localization device for use in an osteotomy procedure to remove a wedge from a bone by making first and second cuts in the bone to reshape said bone, wherein, prior to removing said wedge, said bone extends between a first position corresponding to a first end of said bone and a second position corresponding to a second end of said bone and wherein, after removing said wedge, said second end of said bone is relocated to a third position such that a desired correction angle is produced between a first vector extending from the first position to the second position and a second vector extending from the first position to the third position, said device comprising:
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sensors for sensing information corresponding to the locations of markers associated with one or more of the bones and one or more surgical instruments; a computer coupled to said sensors for tracking the markers; means for recording an angle and depth of the first cut; means for determining a pivot point within the recorded first cut in the bone; and means for calculating a resection angle for making the second cut relative to the recorded first cut that will produce the desired correction angle when the wedge is removed from the bone. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification