Patent ID: 9700293
Date: 2017-07-11
CPC Classifications: A61B

Claim:
1. A retractor assembly comprising: a refractor body; at least one retractor blade having a proximal end configured to engage the retractor body and a distal end configured to retract soft tissue; at least one pedicle screw having a head portion removably connectable to the distal end of the refractor blade and a shaft portion configured to engage bone; and at least one shim having an extension portion, an outer spherical portion, and an inner spherical portion rotatably received within the outer spherical portion, wherein the extension portion is configured to engage the retractor blade and the inner spherical portion is configured to receive the head portion of the at least one pedicle screw, wherein the inner spherical portion rotates from an unlocked position to a locked position for retaining the head portion of the at least one pedicle screw within the at least one shim.