Intervertebral implant having extendable bone fixation members

摘要

An intervertebral implant is configured to be fixed in an intervertebral space defined by a first vertebral body and a second vertebral body. The intervertebral implant includes an implant body sized to be inserted into an intervertebral space, and a fixation assembly configured to be attached to the implant body. The fixation assembly includes a housing that defines a first vertebral body facing surface and a second vertebral body facing surface spaced from the first vertebral body facing surface along a transverse direction. The fixation assembly further includes at least one fixation member supported by the housing and movable from a retracted position to an extended position, whereby in the extended position the fixation member extends out from the housing and into one of the vertebral bodies.

主权项

1. An intervertebral implant configured to be fixed in an intervertebral space defined by a first vertebral body and a second vertebral body, the intervertebral implant comprising:
an implant body sized to be inserted into an intervertebral space; and a fixation assembly configured to be attached to the implant body, the fixation assembly including:
a housing defining a first vertebral body facing surface and a second vertebral body facing surface spaced from the first vertebral body facing surface along a transverse direction, and a proximal end and an opposed distal end that is spaced from the proximal end along a longitudinal direction angularly offset with respect to the transverse direction;at least one fixation member supported by the housing and movable from a retracted position along a direction having a longitudinal directional component to an extended position, whereby in the extended position the fixation member extends out from the housing and into one of the vertebral bodies; andan actuator configured to iterate the fixation member from the retracted position to the extended position, the actuator comprising a screw that threadedly engages the housing and is rotatable with respect to the housing so as to iterate the fixation member from the retracted position to the extended position;wherein the fixation member comprises a pair of fixation members, each defining a first terminal end that extends into the first vertebral body and a second terminal end that extends into the second vertebral body when the fixation members are in the extended position.