Steven C. Humphreys,Scott D. Hodges,Eric C. Lange,Danny Braddock, Jr.,Hai H. Trieu
申请号：
US12015176
公开号：
US08118873B2
申请日:
2008.01.16
申请国别(地区):
US
年份:
2012
代理人:
摘要：
An artificial vertebral joint for interposition between a superior vertebra and an inferior vertebra comprises a pair of bilateral joint subcomponents. Each joint subcomponent includes a superior component including a superior vertebra engaging surface and an inferior component including an inferior vertebra engaging surface. Each joint subcomponent further includes a spacer extending between the superior component and the inferior component. The spacer includes a first modulus of elasticity and a second modulus of elasticity. The first modulus transitions to the second modulus with a gradient change.
