Spinal implant system and method

摘要

A spinal implant system includes a first member comprising walls that include a first end surface defining a first locking cavity, a second end surface and an outer surface extending therebetween. A second member includes a first arm having an inner surface that defines a first cavity and a second arm having an inner surface that defines a second cavity. The inner surface of the first arm includes a first projection disposable in the first cavity and the inner surface of the second arm includes a second projection disposable in the second cavity. A third member includes a first extension having an inner surface that defines a first cavity and a second extension having an inner surface that defines a second cavity. The third member is configured for axial translation relative to the second member between a first orientation and a second orientation. Methods of use are disclosed.

主权项

1. A spinal implant system comprising:
a first member comprising a proximal portion including a pair of spaced apart walls defining an implant cavity and a distal portion including a tissue penetrating portion, each of the walls including a first end surface defining a first locking cavity, a second end surface and an outer surface extending therebetween; a second member including a first arm having an inner surface that defines a first cavity and a second arm having an inner surface that defines a second cavity, the inner surface of the first arm including a first projection disposed within the first cavity and the inner surface of the second arm including a second projection disposed within the second cavity; and a third member including a first extension and a second extension that define a longitudinal cavity configured for disposal of the second member, the first and second extensions being spaced apart by a transverse passageway that extends through a bottommost end surface of the third member, the first extension having an inner surface that defines a first cavity and the second extension having an inner surface that defines a second cavity, wherein the third member is configured for axial translation relative to the second member between a first orientation such that the first and second projections of the second member extend distal to the third member to engage the first locking cavities and a second orientation such that the second end surfaces are disposed within the first and second cavities of the third member and the first end surfaces are engaging the inner surfaces of the first and second arms, wherein the inner surfaces of the first and second extensions are configured to directly and simultaneously engage the walls that define the implant cavity when the third member is in the second orientation, and wherein the system is configured to have a spinal rod positioned within the transverse passageway translate into the implant cavity without removing the rod from the system.