An implantable spacer for placement between adjacent spinous processes in a spinal motion segment is provided. The spacer includes a body defining a longitudinal axis and passageway. A first arm and a second arm are connected to the body. Each arm has a pair of extensions and a saddle defining a U-shaped configuration for seating a spinous process therein. Each arm has a proximal caming surface and is capable of rotation with respect to the body. An actuator assembly is disposed inside the passageway and connected to the body. When advanced, a threaded shaft of the actuator assembly contacts the caming surfaces of arms to rotate them from an undeployed configuration to a deployed configuration. In the deployed configuration, the distracted adjacent spinous processes are seated in the U-shaped portion of the arms.
申请公布号
CA2695937(A1)
申请公布日期
2009.01.15
申请号
CA20082695937
申请日期
2008.07.08
申请人
VERTIFLEX, INC.
发明人
ALTARAC, MOTI;TEBBE, SHAWN;REGLOS, JOEY CAMIA;CHENG, YANG;KADABA, MURALI P.;KIM, DANIEL H.