Spinal fixation tool set and method
First Claim
Patent Images
1. An apparatus for implanting a rod in a spinal bone anchor located in a patient, the apparatus comprising:
- a) a first tool portion having;
i) an elongate body having a longitudinal axis, a central bore extending along the longitudinal axis an entire length of the body, an outer surface and a first channel with a lateral opening extending through the outer surface from a bottom of the body along a substantial length of the body, the first channel and the lateral opening being sized and shaped to receive a rod therein,ii) a spinal bone anchor engaging structure near a bottom of the body that is adapted for removably attaching the first tool portion to a bone anchor such that the central bore is centered over a rod-receiving second channel in a head of the bone anchor and the central bore and the first channel and the channel lateral opening become aligned with the rod-receiving second channel; and
iii) an elongate narrow slot disposed opposite the lateral opening and extending upward from the bottom of the body to an intermediate portion of the body, the narrow slot and lateral opening cooperating to allow manual flexing of the elongate body so as to enlarge the bone anchor engaging structure and thereby enable a snap-on relation of the bone anchor to the bone anchor engaging structure; and
b) a second tool portion cooperating with the first tool portion to reduce the rod relative to the bone anchor rod-receiving second channel so as to seat the rod in the rod-receiving second channel and thereafter the first and second tool portions cooperating to facilitate insertion of a fastener for locking the rod within the bone anchor rod-receiving second channel, and thereafter the apparatus is removed from the patient.
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Accused Products
Abstract
A tool set for implanting a rod in a human spine in conjunction with bone screws includes a pair of end guide tools that receive opposite ends of the rod in channels and under manipulation by a surgeon facilitate transport of the rod toward the bone screws attached to the guide tools. Each end guide tool includes a laterally extending, rigid, rod holding structure located near a bottom surface thereof. Intermediate guide tools having pass-through slots are utilized to guide the rod to the bone screws at intermediate locations.
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Citations
22 Claims
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1. An apparatus for implanting a rod in a spinal bone anchor located in a patient, the apparatus comprising:
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a) a first tool portion having; i) an elongate body having a longitudinal axis, a central bore extending along the longitudinal axis an entire length of the body, an outer surface and a first channel with a lateral opening extending through the outer surface from a bottom of the body along a substantial length of the body, the first channel and the lateral opening being sized and shaped to receive a rod therein, ii) a spinal bone anchor engaging structure near a bottom of the body that is adapted for removably attaching the first tool portion to a bone anchor such that the central bore is centered over a rod-receiving second channel in a head of the bone anchor and the central bore and the first channel and the channel lateral opening become aligned with the rod-receiving second channel; and iii) an elongate narrow slot disposed opposite the lateral opening and extending upward from the bottom of the body to an intermediate portion of the body, the narrow slot and lateral opening cooperating to allow manual flexing of the elongate body so as to enlarge the bone anchor engaging structure and thereby enable a snap-on relation of the bone anchor to the bone anchor engaging structure; and b) a second tool portion cooperating with the first tool portion to reduce the rod relative to the bone anchor rod-receiving second channel so as to seat the rod in the rod-receiving second channel and thereafter the first and second tool portions cooperating to facilitate insertion of a fastener for locking the rod within the bone anchor rod-receiving second channel, and thereafter the apparatus is removed from the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A tool set for implanting a rod in a spinal bone anchor located in a patient, the tool set comprising:
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a) a first tool portion having; i) an elongate body having a longitudinal axis, a central bore extending along the longitudinal axis an entire length of the body, an outer surface and a channel with a lateral opening and a narrow rear slot extending through the outer surface from a bottom of the body along a substantial length of the body, the channel and the lateral opening being sized and shaped to receive a rod therein, the slot and the lateral opening cooperate to allow manual flexing of the body; and ii) a spinal bone anchor engaging structure near a bottom of the body that is adapted for removably attaching the first tool portion to a bone anchor such that the central bore becomes aligned with a rod-receiving channel in the bone anchor;
whereiniii) the manual flexing of the body enlarges the bone anchor engaging structure, so as to allow the bone anchor engaging structure to snap on to the bone anchor; and b) a second tool portion cooperating with the first tool portion to reduce the rod relative to the bone anchor rod-receiving channel so as to seat the rod in the rod-receiving channel and thereafter the first and second tool portions cooperating to facilitate insertion of a fastener for locking the rod within the bone anchor rod-receiving channel, and thereafter the first and second tool portions are removed from the patient.
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21. An apparatus for implanting a rod in a spinal bone anchor located in a patient, the apparatus comprising:
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a) a first tool portion having; i) an elongate body having a longitudinal axis, a central bore extending along the longitudinal axis an entire length of the body, an outer surface and a channel, the channel having a lateral opening and an opposed narrow slot, each of the lateral opening and the slot extending through the outer surface from a bottom of the body along a length of the body, the channel and the lateral opening being sized and shaped to receive a rod therein; and ii) a spinal bone anchor engaging structure near a bottom of the body that is adapted for removably attaching the first tool portion to a head of the bone anchor such that the tool body central bore is centered over a rod-receiving channel in the head of the bone anchor and the central bore and a central bore in the head of the bone anchor become axially aligned and the lateral opening in the tool body becomes aligned with the rod-receiving channel in the bone anchor head;
the slot and the elongate channel cooperating to enlarge the bone anchor engaging structure by manual flexing of the body, whereby the bone anchor engaging structure snaps on to the bone anchor head; andb) a second tool portion cooperating with the first tool portion to reduce the rod relative to the bone anchor head rod-receiving channel so as to seat the head rod in the rod-receiving channel and thereafter the first and second tool portions cooperating to facilitate insertion of a fastener for locking the rod within the bone anchor head rod-receiving channel, and thereafter the apparatus is removed from the patient.
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22. A tool set for implanting a rod in a spinal bone anchor located in a patient, the tool set comprising:
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a) a first tool portion having; i) an elongate body having a longitudinal axis, a central bore extending along the longitudinal axis an entire length of the body, an outer surface and a body channel with both a lateral opening an opposed narrow slot extending through the outer surface from a bottom of the body along a length of the body, the body channel and lateral opening being sized and shaped to receive a rod therein, the lateral opening and the narrow slot cooperating to enable manual flexing of the body and a snap-on relation of the body with a bone anchor; and ii) a spinal bone anchor engaging structure near a bottom of the body that is adapted for removably attaching the first tool portion to the bone anchor such that the central bore becomes axially aligned with a central bore in a head of the bone anchor and the body channel becomes aligned with a rod-receiving channel in the head of the bone anchor; b) a second tool portion cooperating with the first tool portion to reduce a rod relative to the bone anchor rod-receiving channel so as to seat the rod in the rod-receiving channel of the head of the bone anchor and thereafter cooperating with at least the first tool portion to facilitate insertion of a fastener for locking the rod within the bone anchor rod-receiving channel, and thereafter the first tool portion being detached from the bone anchor and removed from the patient.
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Specification