Patent ID: 9011494
Filing Date: 2015-04-21
Classification: A61B

Abstract:
1. A vertebral rod comprising: a first elongated section; a second elongated section; and a first intermediate section disposed between the first section and the second section, the intermediate section having an arcuate inner surface that defines a cavity, the cavity including an open end having a width that is less than a maximum width of the cavity, the cavity further including a protrusion, wherein the rod is movable between an unbiased configuration in which the first and second sections are non-coaxial and a biased configuration in which the first and second sections are coaxial, the protrusion extending parallel to one of the first and second sections and at an acute angle to the other of the first and second sections when the rod is in the unbiased configuration, wherein the first section has a heterogeneous composite reinforced configuration comprising an outer layer and a core, the outer layer having a modulus of elasticity different from a modulus of elasticity of the core, the first section having a first modulus of elasticity, the second section has a heterogeneous composite reinforced configuration comprising an outer layer and a core, the outer layer of the second section having a modulus of elasticity different from a modulus of elasticity of the core of the second section, the second section having a second modulus of elasticity, the intermediate section comprising a third material having a third modulus of elasticity, the first modulus and the second modulus each being greater than the third modulus such that the first and second sections provide a reinforced configuration of the vertebral rod and the intermediate section has a relatively flexible configuration.