Guide sleeve for offset vertebrae
First Claim
Patent Images
1. A sleeve for engagement with two adjacent vertebrae, said sleeve comprising:
- a first tube portion having a first bone engaging end; and
a second tube portion movably coupled to said first tube portion, said second tube portion having a second bone engaging end disposed proximal said first bone engaging end, wherein said second tube portion is movable in relation to said first tube portion to provide a longitudinal offset between the first bone engaging portion and the second bone engaging portion.
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Abstract
A guide sleeve with longitudinally offset bone engaging portions is provided for engagement with anterior-posterior offset vertebral bodies. In one aspect of the invention the guide tube has fixed bone engaging portions in a predetermined offset position. In another form of the invention, the guide sleeve is composed of at least two moveably connected portions adapted to permit adjustment of the offset between the bone engaging portions. Further, a method is provided for using a guide sleeve with offset bone engaging portions.
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Citations
16 Claims
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1. A sleeve for engagement with two adjacent vertebrae, said sleeve comprising:
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a first tube portion having a first bone engaging end; and
a second tube portion movably coupled to said first tube portion, said second tube portion having a second bone engaging end disposed proximal said first bone engaging end, wherein said second tube portion is movable in relation to said first tube portion to provide a longitudinal offset between the first bone engaging portion and the second bone engaging portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A guide sleeve for engaging an upper vertebra and a lower vertebra with an anterior-posterior offset therebetween, the guide sleeve comprising:
a tube having a longitudinal axis and a bone engaging end, said bone engaging end having a first bone engaging portion for engaging the upper vertebra and a second bone engaging portion for engaging the lower vertebra, said second bone engaging portion longitudinally offset with respect to said first bone engaging portion. - View Dependent Claims (10, 11, 12)
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13. A guide sleeve, comprising:
a hollow tube having a longitudinal axis, said tube having a bone engaging end, said bone engaging end having a first portion and an interconnected second portion, said second portion movable with respect to said first portion to a longitudinally offset position, adapted for engagement with offset vertebra.
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14. A method of positioning a guide sleeve against a first vertebral body offset from a second vertebral body, said method comprising:
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determining the amount of offset between the first vertebral body and the second vertebral body;
providing a guide sleeve with a sleeve longitudinal axis, the sleeve having a bone engaging portion with a first portion and a second portion longitudinally offset substantially corresponding to the offset between the first vertebral body and the second vertebral body; and
positioning the guide tube adjacent the spine with the first bone engaging portion engaging the first vertebral body and the second bone engaging portion engaging the second vertebral body. - View Dependent Claims (15, 16)
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Specification