| 主权项 |
1. A spinal construct for implantation in a patient to provide stabilization to a spinal structure with improved load sharing, comprising:
a flexible spinal rod having a first end and a second end, the flexible spinal rod comprising a C-shaped flexible portion, the spinal rod being configured to provide stabilization to the spinal structure; a first bone fastener configured to securely attach to the flexible spinal rod; and a second bone fastener configured to securely attach to the flexible spinal rod, the second bone fastener is a dynamic fastener arranged to provide motion in one direction more than another direction, the second bone fastener is monolithic and extends along a longitudinal axis between a proximal portion comprising a pair of spaced apart arms defining a cavity configured to receive the flexible spinal rod and a distal portion configured to penetrate tissue, the second bone fastener includes a C-shaped flexible portion positioned between the proximal and distal portions such that the proximal and distal portions are aligned with the longitudinal axis and the C-shaped flexible portion includes a joint portion positioned offset from the longitudinal axis, the flexible spinal rod and the second bone fastener are oriented to cooperate in a manner that achieves load sharing by dynamically flexing under applied loads in a manner that distributes stresses and strains between the flexible spinal rod and the second bone fastener. |
