Patent ID: 11857173
Assignee: ZIMMER BIOMET SPINE, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 8:
9. A surgical retractor comprising:
a retractor body;
a first armature rotatably coupled to the retractor body at a first pivot point, the first armature rotatable between a first closed position and a first open position;
a second armature rotatably coupled to the retractor body at a second pivot point spaced apart from the first pivot point, the second armature rotatable between a second closed position and a second open position;
a retractor blade affixed to a distal portion of the first armature;
a first actuator coupled to the retractor body and aligned along a central axis of the retractor body, and actuatable to operate a central drive mechanism to simultaneously engage the first armature and second armature to rotate the first armature and the second armature independent of a translatable armature;
a shim couplable to a distal portion of the retractor blade, wherein the shim includes a pair of tabs extending respectively from a pair of arms of the shim, and wherein the retractor blade includes a plurality of grooves configured to receive the pair of tabs such that the pair of tabs can lockingly engage the plurality of grooves; and
a fastener supported by the shim and configured to anchor the shim and the retractor blade to a vertebral body.