Patent ID: 9707095
Date: 2017-07-18
CPC Classifications: A61F

Claim:
1. An intervertebral spacing implant system comprising: a first seat having a first lateral end; first branches coupled to the first lateral end of the first seat and extending in a first lateral direction away from the first seat, the first seat and the first branches forming a first cage defining a first internal volume, each first branch having a first inward side and a first outward side; a first spacer configured to fit within the first cage and move in the first lateral direction upon the urging of a spacer-advancing instrument, the first spacer and first cage configured such that one or more first branches will move from an unextended position to a fully extended position when the first spacer is urged in the first lateral direction; wherein the first internal volume between the first lateral end of the first seat and the first spacer is unoccupied by any link member when the one or more first branches are in the fully extended position; a second seat having a second lateral end; second branches coupled to the second lateral end of the second seat and extending in a second lateral direction away from the second seat, the second seat and the second branches forming a second cage defining a second internal volume, each second branch having a second inward side and a second outward side; a second spacer configured to fit within the second cage and move in the second lateral direction upon the urging of the spacer-advancing instrument, the second spacer and the second cage configured such that one or more second branches will move from an unextended position to a fully extended position when the second spacer is urged in the second lateral direction; wherein the second internal volume between the second proximal end of the second seat and the second spacer is unoccupied by any link member when the one or more second branches are in the fully extended position; wherein a long axis extends centrally within the first and second cages along the first and second lateral directions; wherein one of the first branches deflects radially a first distance, orthogonal to the long axis, when the one or more first branches are in the fully extended position; wherein another of the first branches deflects radially a second distance, orthogonal to the long axis, when the one or more first branches are in the fully extended position; wherein the first distance is unequal to the second distance.