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A rod reduction instrument for position a rod relative to a seat of a bone anchor in a spinal implant system is provided. The instrument includes three concentric cannulas with circumferentially aligned rod receiving portions formed therein. One cannula is movable with respect to another to lock and

A rod reduction instrument for position a rod relative to a seat of a bone anchor in a spinal implant system is provided. The instrument includes three concentric cannulas with circumferentially aligned rod receiving portions formed therein. One cannula is movable with respect to another to lock and unlock the seat of a bone anchor to the rod reduction instrument. The rod to be reduced is positioned inside at least one of the rod receiving portion. One cannula is moved with respect to another to lock the seat of the bone anchor to the rod reduction instrument. Once locked to the bone anchor, the remaining cannula is moved to reduce the distance between the rod and the seat within at least one of the rod receiving portions. The distance between the rod and the seat is reduced until the rod is position inside the seat. A secondary instrument is inserted through a central bore of the rod reduction instrument to introduce a cap and lock the cap to the seat securing the rod to the bone anchor.

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1. A rod reduction instrument for positioning a rod relative to a seat of a bone anchor in a spinal implant system, comprising: a body having a handle at a proximal end of the instrument;an inner cannula having a first proximal end, a first distal end configured to receive a seat and a first longitu

1. A rod reduction instrument for positioning a rod relative to a seat of a bone anchor in a spinal implant system, comprising: a body having a handle at a proximal end of the instrument;an inner cannula having a first proximal end, a first distal end configured to receive a seat and a first longitudinal axis defining a first bore from the first proximal end to the first distal end; the inner cannula being connected to the body at the first proximal end such that it is movable with respect to the body; the inner cannula having a first rod channel opening at the first distal end and extending towards the first proximal end; the inner cannula having a seat clamp at the first distal end configured to lock the inner cannula to the seat of a bone anchor; the seat clamp having at least one deflectable member;a middle cannula having a second proximal end, a second distal end and a second longitudinal axis defining a second bore from the second proximal end to the second distal end; the middle cannula being connected to the body at the second proximal end; the middle cannula being positioned at least partially over the inner cannula and movable with respect to the inner cannula; the middle cannula having a second rod channel opening at the second distal end and extending towards the second proximal end; the second rod channel being substantially aligned with the first rod channel;an outer cannula having a third proximal end, a third distal end and a third longitudinal axis defining a third bore from the third proximal end to the third distal end; the outer cannula being positioned at least partially over the middle cannula and movable with respect to the middle cannula; the outer cannula having a third rod channel opening at the third distal end and extending towards the third proximal end; the third rod channel being substantially aligned with the first and second rod channels;wherein the instrument is configured to receive the seat of a bone anchor at the first distal end and configured to lock to the seat at the first distal end with movement of the instrument in a direction towards the seat such that such movement slides the middle cannula distally with respect to the inner cannula and over the at least one deflectable member to thereby deflect the at least one deflectable member inwardly towards the first longitudinal axis and lock the at least one deflectable member to the seat; and wherein movement of the middle cannula proximally with respect to the inner cannula uncovers the at least one deflectable member allowing the deflectable member to spring away from the seat and the first longitudinal axis to thereby unlock the seat from the instrument;wherein, with the rod to be reduced located in one of the first or second rod channels and the seat received in the first distal end of the inner cannula, movement of the outer cannula distally with respect to the middle cannula slides the outer cannula over the middle cannula to engage the third rod channel with the rod and reduce the distance between the rod and the seat. 2. The rod reduction instrument of claim 1 further including a first spring disposed between the inner cannula and middle cannula to bias the inner cannula distally relative to the middle cannula. 3. The rod reduction instrument of claim 1 further including a first locking pin configured to releasably lock the inner cannula relative to the middle cannula such that the seat is locked to the rod reduction instrument when the first locking pin is locked and the seat is unlocked when the first locking pin is released. 4. The rod reduction instrument of claim 1 further including a second spring disposed between the middle cannula and the outer cannula to bias the outer cannula proximally relative to the middle cannula. 5. The rod reduction instrument of claim 1 further including a second locking pin configured to releasably lock the outer cannula relative to the middle cannula. 6. The rod reduction instrument of claim 1 further including a driver configured to translate the outer cannula. 7. The rod reduction instrument of claim 6 wherein the driver is configured with a removable handle insertable on either side of the instrument to drive the driver. 8. The rod reduction instrument of claim 1 further including: a first locking pin configured to releasably lock the inner cannula relative to the middle cannula such that the seat is locked to the rod reduction instrument when the first locking pin is locked and the seat is unlocked when the first locking pin is releaseda second locking pin configured to releasably lock the outer cannula relative to the middle cannula;wherein the first and second locking pins are independently activatable. 9. The rod reduction instrument of claim 1 further including an indicator connected to the outer cannula indicating the degree of advancement of the outer cannula relative to the seat. 10. A rod reduction system for positioning a rod relative to a seat of a bone anchor of a spinal implant system, comprising: an inner cannula, comprising: a first longitudinal axis;a first proximal end portion;a first distal end portion, comprising: a first rod receiving opening; anda seat clamp configured to couple the distal end of the inner cannula to the seat of the bone anchor during use, wherein the seat clamp comprises an outwardly biased deflectable member that is configured to be deflected inward toward the first longitudinal axis to engage at least a portion of the bone anchor during use to couple the distal end portion of the inner cannula to the seat of the bone anchor; anda first internal bore extending longitudinally along a length of the inner cannula;a middle cannula, comprising: a second longitudinal axis configured to be substantially aligned with the first longitudinal axis of the inner cannula during use;a second proximal end portion;a second distal end portion comprising a second rod receiving opening; anda second internal bore extending longitudinally along a length of the middle cannula;wherein the middle cannula is configured to be disposed at least partially over the inner cannula during use,wherein the second rod receiving opening is configured to be substantially aligned with the first rod receiving opening of the inner cannula during use, andwherein the middle cannula is configured to slide longitudinally in a distal direction with respect to the inner cannula to deflect the deflectable member inward toward the first longitudinal axis to engage at least a portion of the bone anchor during use such that sliding of the middle cannula in the distal direction results in coupling of the distal end portion of the inner cannula to the seat of the bone anchor; andan outer cannula, comprising: a third longitudinal axis configured to be substantially aligned with the first and second longitudinal axes of the inner and middle cannulas during use;a third proximal end portion;a third distal end portion comprising a third rod receiving opening configured to engage the rod during use to draw the rod at least partially toward the seat of the bone anchor such that a distance between the rod and the seat is reduced; anda third internal bore extending longitudinally along a length of the outer cannula;wherein the outer cannula is configured to be disposed at least partially over the middle cannula,wherein the third rod receiving opening is substantially aligned with the first and second rod receiving openings of the inner and middle cannulas, andwherein the outer cannula is configured to slide longitudinally in a distal direction with respect to the middle cannula, andwherein sliding of the outer cannula longitudinally in the distal direction is configured to result in the third rod receiving opening engaging the rod during use to draw the rod at least partially toward the seat of the bone anchor such that the distance between the rod and the seat is reduced. 11. The system of claim 10, wherein the middle cannula is configured to slide longitudinally in a proximal direction with respect to the inner cannula to enable the deflectable member to extend outward away from the first longitudinal axis to disengage at least a portion of the bone anchor during use such that sliding of the middle cannula in the proximal direction allows for de-coupling of the distal end of the inner cannula from the seat of the bone anchor. 12. A rod reduction system for positioning a rod relative to a seat of a bone anchor of a spinal implant system, comprising: an inner cannula, comprising: a first longitudinal axis;a first proximal end portion;a first distal end portion comprising: a first rod receiving recess; anda seat clamp configured to couple the distal end of the inner cannula to the seat of the bone anchor, wherein the seat clamp comprises a locking member that is configured to be deflected inward toward the first longitudinal axis to engage at least a portion of the bone anchor during use to couple the inner cannula to the seat of the bone anchor; anda first internal bore extending in a longitudinally along a length of the inner cannula;a middle cannula, comprising: a second proximal end portion;a second distal end portion comprising a second rod receiving recess; anda second internal bore extending longitudinally along a length of the middle cannula;wherein the middle cannula is configured to be disposed at least partially over the inner cannula during use,wherein the second rod receiving recess is configured to be substantially aligned with the first rod receiving recess of the inner cannula during use, andwherein the middle cannula is configured to slide longitudinally in a distal direction with respect to the inner cannula to deflect the locking member inward toward the first longitudinal axis to engage at least a portion of the bone anchor during use such that sliding of the middle cannula in the distal direction results in coupling of the inner cannula to the seat of the bone anchor; andan outer cannula, comprising: a third proximal end portion;a third distal end portion comprising a third rod receiving recess configured to engage the rod during use to urge the rod at least partially toward the seat of the bone anchor during use; anda third internal bore extending longitudinally along a length of the outer cannula;wherein the outer cannula is configured to be disposed at least partially over the middle cannula,wherein the third rod receiving recess is substantially aligned with the first and second rod receiving recesses of the inner and middle cannulas,wherein the outer cannula is configured to slide longitudinally in a distal direction with respect to the middle cannula, andwherein sliding of the outer cannula longitudinally in the distal direction is configured to result in the third rod receiving recess engaging the rod during use to urge the rod at least partially toward the seat of the bone anchor. 13. The system of claim 12, wherein the middle cannula is configured to slide longitudinally in a proximal direction with respect to the inner cannula to enable the locking member to deflect outward to disengage at least a portion of the bone anchor during use, such that sliding of the middle cannula in the proximal direction allows for de-coupling of the inner cannula from the seat of the bone anchor. 14. A rod reduction system for positioning a rod relative to a seat of a bone anchor of a spinal implant system, comprising: an inner cannula, comprising: a first distal end portion comprising: a first rod receiving recess; andan actuatable seat clamp configured to couple to the bone anchor during use; anda middle cannula, comprising: a second distal end portion comprising a second rod receiving recess; andwherein the middle cannula is configured to be disposed at least partially over the inner cannula during use,wherein the second rod receiving recess is configured to be substantially aligned with the first rod receiving recess of the inner cannula during use, andwherein the middle cannula is configured to slide in a distal direction with respect to the inner cannula during use to actuate the seat clamp to couple to the bone anchor; andan outer cannula, comprising: a third distal end portion comprising a distal end portion configured to engage the rod during use to urge the rod at least partially toward the seat of the bone anchor during use,wherein the outer cannula is configured to be disposed at least partially over the middle cannula,wherein the outer cannula is configured to slide longitudinally in a distal direction with respect to the middle cannula, andwherein sliding of the outer cannula longitudinally in the distal direction is configured to result in the distal end portion engaging the rod during use to urge the rod at least partially toward the seat of the bone anchor. 15. The system of claim 14, wherein the middle cannula is configured to slide in a proximal direction with respect to the inner cannula during use to enable the seat clamp to de-couple from the bone anchor. 16. A rod reduction system for positioning a rod relative to a seat of a bone anchor of a spinal implant system, comprising: a first cannula, comprising: a first longitudinal axis;a first proximal end portion;a first distal end portion comprising: a first rod receiving opening; anda seat clamp configured to couple the distal end of the first cannula to the seat of the bone anchor, wherein the seat clamp comprises an outwardly biased deflectable member that is configured to be deflected inward toward the first longitudinal axis to engage at least a portion of the bone anchor during use to couple the distal end portion of the first cannula to the seat of the bone anchor; anda first internal bore extending in a longitudinally along a length of the first cannula;a second cannula, comprising: a second longitudinal axis configured to be substantially aligned with the first longitudinal axis of the first cannula during use;a second proximal end portion;a second distal end portion comprising a second rod receiving opening; anda second internal bore extending longitudinally along a length of the second cannula;wherein the second cannula is configured to be disposed at least partially over the first cannula during use,wherein the second rod receiving opening is configured to be substantially aligned with the first rod receiving opening of the first cannula during use, andwherein the second cannula is configured to slide longitudinally in a distal direction with respect to the first cannula to deflect the deflectable member inward toward the first longitudinal axis to engage at least a portion of the bone anchor during use such that sliding of the second cannula in the distal direction results in coupling of the distal end portion of the first cannula to the seat of the bone anchor; anda third cannula, comprising: a third longitudinal axis configured to be substantially aligned with the first and second longitudinal axes of the first and second cannulas during use;a third proximal end portion;a third distal end portion comprising a third rod receiving opening configured to engage the rod during use to draw the rod at least partially toward the seat of the bone anchor during use such that a distance between the rod and the seat is reduced; anda third internal bore extending longitudinally along a length of the third cannula;wherein the third cannula is configured to be disposed at least partially over the second cannula,wherein the third rod receiving opening is substantially aligned with the first and second rod receiving openings of the first and second cannulas, andwherein the third cannula is configured to slide longitudinally in a distal direction with respect to the second cannula, andwherein sliding of the third cannula longitudinally in the distal direction is configured to result in the third rod receiving opening engaging the rod during use to draw the rod at least partially toward the seat of the bone anchor such that the distance between the rod and the seat is reduced. 17. The system of claim 16, wherein the second cannula is configured to slide longitudinally in a proximal direction with respect to the first cannula to enable the deflectable member to extend outward away from the first longitudinal axis to disengage at least a portion of the bone anchor during use such that sliding of the second cannula in the proximal direction allows for de-coupling of the distal end of the first cannula from the seat of the bone anchor. 18. A rod reduction system for positioning a rod relative to a seat of a bone anchor of a spinal implant system, comprising: a first cannula, comprising: a first longitudinal axis;a first proximal end portion;a first distal end portion comprising: a first rod receiving recess; anda seat clamp configured to couple the distal end of the first cannula to the seat of the bone anchor, wherein the seat clamp comprises a locking member that is configured to be deflected inward toward the first longitudinal axis to engage at least a portion of the bone anchor during use to couple the first cannula to the seat of the bone anchor; anda first internal bore extending in a longitudinally along a length of the first cannula;a second cannula, comprising: a second proximal end portion;a second distal end portion comprising a second rod receiving recess; anda second internal bore extending longitudinally along a length of the second cannula;wherein the second rod receiving recess is configured to be substantially aligned with the first rod receiving recess of the first cannula during use, andwherein the second cannula is configured to slide longitudinally in a distal direction with respect to the first cannula to deflect the locking member inward toward the first longitudinal axis to engage at least a portion of the bone anchor during use such that sliding of the second cannula in the distal direction results in coupling of the first cannula to the seat of the bone anchor; anda third cannula, comprising: a third proximal end portion;a third distal end portion comprising a third rod receiving recess configured to engage the rod during use to urge the rod at least partially toward the seat of the bone anchor during use; anda third internal bore extending longitudinally along a length of the third cannula;wherein the third rod receiving recess is substantially aligned with the first and second rod receiving recesses of the first and second cannulas,wherein the third cannula is configured to slide longitudinally in a distal direction with respect to the second cannula, andwherein sliding of the third cannula longitudinally in the distal direction is configured to result in the third rod receiving recess engaging the rod during use to urge the rod at least partially toward the seat of the bone anchor. 19. The system of claim 18, wherein the first cannula, second cannula and third cannula are disposed substantially concentrically with respect to one another. 20. The system of claim 18, wherein the second cannula is configured to be disposed at least partially over the first cannula during use, and wherein the third cannula is configured to be disposed at least partially over the second cannula during use. 21. The system of claim 18, wherein the second cannula is configured to slide longitudinally in a proximal direction with respect to the first cannula to enable the locking member deflect outward to disengage at least a portion of the bone anchor during use such that sliding of the second cannula in the proximal direction allows for de-coupling of the first cannula from the seat of the bone anchor. 22. A rod reduction system for positioning a rod relative to a seat of a bone anchor of a spinal implant system, comprising: a first cannula, comprising: a first distal end portion comprising: a first rod receiving recess; andan actuatable seat clamp configured to couple to the bone anchor during use; anda second cannula, comprising: a second distal end portion comprising a second rod receiving recess; andwherein the second rod receiving recess is configured to be substantially aligned with the first rod receiving recess of the inner cannula during use, andwherein the second cannula is configured to slide in a distal direction with respect to the first cannula during use to actuate the seat clamp to couple to the bone anchor; anda third cannula, comprising: a third distal end portion comprising a distal end portion configured to engage the rod during use to urge the rod at least partially toward the seat of the bone anchor during use,wherein the third cannula is configured to slide longitudinally in a distal direction with respect to the second cannula, andwherein sliding of the third cannula longitudinally in the distal direction is configured to result in the distal end portion engaging the rod during use to urge the rod at least partially toward the seat of the bone anchor. 23. The system of claim 22, wherein the first cannula, second cannula and third cannula are disposed substantially concentrically with respect to one another. 24. The system of claim 22, wherein the second cannula is configured to be disposed at least partially over the first cannula during use, and wherein the third cannula is configured to be disposed at least partially over the second cannula during use. 25. The system of claim 22, wherein the middle cannula is configured to slide in a proximal direction with respect to the inner cannula during use to enable the seat clamp to de-couple from the bone anchor.