Spinal implant system and method

摘要

A system includes a sleeve including first and second arms each including an outer ramp and an inward projection, each of the arms defining a cavity. First and second extensions are configured for disposal in the cavities. A fastener includes walls defining an implant cavity and a distal portion. The walls each include first and second end surfaces and a locking cavity. The extensions are configured for translation relative to the sleeve between a first orientation such that the extensions engage the respective ramps to fix the projections with a respective locking cavity in a configuration to capture the fastener with the sleeve and a second orientation such that the extensions move out of engagement with the respective ramps so that the projections are movable out of engagement with the locking cavities to release the fastener from the sleeve. Methods of use are disclosed.

主权项

1. A sleeve extending along a longitudinal axis between a first end and a second end, the sleeve including a first arm, a second arm and an inner surface defining an interior cavity therebetween, the first end comprising a smooth outer surface, the smooth outer surface extending from a proximal end surface of the first end to the arms, each of the arms including a radially flexible tab having an inward projection, wherein each of the tabs is resiliently biased in a direction that faces the other tab such that the sleeve is movable between a first orientation in which the projections are spaced apart a first distance and a second orientation in which an outward force is exerted on each tab such that the projections are spaced apart from one another a second distance that is greater than the first distance, wherein each tab has a convex end surface extending between planar sidewalls and a uniform width between the sidewalls and the convex end surface has a maximum width that is equal to the width of the tab.