Variable angle spinal fixation system
First Claim
1. A spinal fixation system comprising:
- a longitudinal member positionable along a spinal column;
a fastener having a threaded end for engaging a vertebra; and
a connector member for connecting the longitudinal member and the fastener at any one of a plurality of surgeon selected angles obtained by pivoting the connector member with respect to the fastener, said connector member having;
a channel extending through side surfaces of the connector member for receiving the longitudinal member;
a longitudinal member clamping element for securing the longitudinal member in the channel;
an opening laterally displaced from the channel and extending through top and bottom surfaces of the connector member for receiving the fastener; and
a fastener clamping element for securing the fastener in the opening at the surgeon selected angle relative to the connector member and longitudinal member, wherein the channel is open to allow insertion and alignment of the longitudinal member with respect to the fastener prior to being secured by the longitudinal member clamping element.
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Accused Products
Abstract
A variable angle spinal fixation system is disclosed. The system includes a longitudinal member positionable along a spinal column, a fastener having a threaded end for engaging a vertebra, and a connector member for connecting the fastener and the longitudinal member. The connector member has a channel extending through side surfaces of the connector member for receiving the longitudinal member, an opening laterally displaced from the channel and extending through top and bottom surfaces of the connector member for receiving the fastener, and a fastener clamping element for securing the fastener in the opening at a surgeon selected angle relative to the connector member and longitudinal member. The system according to the present invention allows angulation of the fastener to accommodate complex pathologies.
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Citations
12 Claims
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1. A spinal fixation system comprising:
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a longitudinal member positionable along a spinal column;
a fastener having a threaded end for engaging a vertebra; and
a connector member for connecting the longitudinal member and the fastener at any one of a plurality of surgeon selected angles obtained by pivoting the connector member with respect to the fastener, said connector member having;
a channel extending through side surfaces of the connector member for receiving the longitudinal member;
a longitudinal member clamping element for securing the longitudinal member in the channel;
an opening laterally displaced from the channel and extending through top and bottom surfaces of the connector member for receiving the fastener; and
a fastener clamping element for securing the fastener in the opening at the surgeon selected angle relative to the connector member and longitudinal member, wherein the channel is open to allow insertion and alignment of the longitudinal member with respect to the fastener prior to being secured by the longitudinal member clamping element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A spinal fixation system comprising:
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a longitudinal member positionable along a spinal column;
a fastener having a threaded end for engaging a vertebra; and
a connector member for connecting the fastener and the longitudinal member, said connector member having;
a channel extending through side surfaces of the connector member for receiving the longitudinal member, the channel open on top to allow insertion of the longitudinal member therein;
a yoke defining the channel and having walls with threads;
an apron slidable over the yoke walls for retaining the longitudinal member in the channel;
a screw top having threads which mate with the yoke wall threads to secure the apron to the yoke walls an opening laterally displaced from the channel and extending through top and bottom surfaces of the connector member for receiving the fastener; and
a fastener clamping element for securing the fastener in the opening at a surgeon selected angle relative to the connector member and longitudinal member.
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Specification