Instruments and methods for manipulating vertebra
First Claim
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1. An instrument for manipulating a vertebra, the instrument comprising:
- an inner shaft having a proximal end, a distal end and a lumen extending between the proximal end and the distal end, a pair of fingers disposed at the distal end of the inner shaft, and an outer sleeve disposed about the inner shaft, the inner shaft movable relative to the outer sleeve between a first position in which the fingers are advanced beyond a distal end of the outer sleeve and a second position in which a substantial portion of the fingers are disposed within the sleeve, the fingers, when in the first position, configured to capture a spinal rod receiving member of the bone anchor therebetween, the fingers, when in the second position, configured to retain the spinal rod receiving member of the bone anchor therebetween to permit rotation of the bone anchor and a vertebra in which the bone anchor is engaged by manipulation of the instrument.
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Abstract
A method for manipulating a vertebra includes connecting a first bone anchor to a first vertebra, connecting a second bone anchor to a second bone anchor, positioning a spinal rod in a receiving member of the first bone anchor and in a receiving member of the second bone anchor, connecting a first instrument to the receiving member of the first bone anchor, and manipulating the first instrument to rotate first bone anchor and the first vertebra relative to the second vertebra.
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Citations
8 Claims
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1. An instrument for manipulating a vertebra, the instrument comprising:
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an inner shaft having a proximal end, a distal end and a lumen extending between the proximal end and the distal end, a pair of fingers disposed at the distal end of the inner shaft, and an outer sleeve disposed about the inner shaft, the inner shaft movable relative to the outer sleeve between a first position in which the fingers are advanced beyond a distal end of the outer sleeve and a second position in which a substantial portion of the fingers are disposed within the sleeve, the fingers, when in the first position, configured to capture a spinal rod receiving member of the bone anchor therebetween, the fingers, when in the second position, configured to retain the spinal rod receiving member of the bone anchor therebetween to permit rotation of the bone anchor and a vertebra in which the bone anchor is engaged by manipulation of the instrument. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification