Patent ID: 8945225
Filing Date: 2015-02-03
Classification: A61F

Abstract:
1. A prosthetic spinal disc system, the system comprising: a nucleus component having an upper surface configured to engage a superior vertebra and a lower surface configured to engage an inferior vertebra, the nucleus component further having a recess extending circumferentially through an outer surface of the nucleus component situated substantially between the upper surface and the lower surface of the nucleus component; an anchor comprising a plate having a concave inner surface configured to engage the superior and inferior vertebrae, the anchor extending between a first end configured to engage the superior vertebra and an opposite second end configured to engage the inferior vertebra; and a tether comprising a first section having an inner surface and an outer surface and a second section forming at least one leg portion extending transversely from the first section between a first end and a second end, the inner surface of the first section engaging the circumferential recess in the outer surface of the nucleus component, the outer surface of the tether extending a distance past the outer surface of the nucleus, the first end of the at least one leg portion engages the inner surface of the anchor and the second end of the at least one leg portion extends from the tether such that the tether flexibly attaches the anchor to the nucleus component.