Patent ID: 8162990
Filing Date: 2012-04-24
Classification: A61B,B25B

Abstract:
1. A spinal fixation system comprising: an elongated rod sized to extend between at least two vertebrae; a fastener having a bone engaging portion and a head, said head defining a socket having a socket opening, said socket having an interior dimension and said socket opening having a planar dimension less than said interior dimension; an insert situated in said socket and configured for swivel movement therewithin relative to said bone engaging portion, said insert being of fixed size and configuration and including an outer surface comprising a first portion having a first dimension that is greater than said planar dimension of said socket opening and less than said interior dimension of said socket and a second portion having a maximum second dimension that is less than said planar dimension of said socket opening; a yoke defining a yoke channel for receiving said rod therein and including a portion configured to be secured to said insert at said first portion when said insert is within said socket for joint swivel movement of said yoke with said insert; and a clamping structure for clamping said elongated rod within said yoke while locking said yoke relative to said fastener.