Manohar M. Panjabi,Jens P. Timm,George Malcolmson, II
申请号:
US13089878
公开号:
US08500781B2
申请日:
2011.04.19
申请国别(地区):
US
年份:
2013
代理人:
摘要:
Spine stabilization devices, systems and methods are provided in which a single resilient member or spring is disposed on an elongate element that spans two attachment members attached to different spinal vertebrae. The elongate element passes through at least one of the two attachment members, permitting relative motion therebetween, and terminates in a stop or abutment. A second resilient member is disposed on the elongate element on an opposite side of the sliding attachment member, e.g., in an overhanging orientation. The two resilient members are capable of applying mutually opposing urging forces, and a compressive preload can be applied to one or both of the resilient members.