Patent ID: 11871972
Assignee: GLOBUS MEDICAL INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A spinal plate assembly comprising:
a base plate defining an aperture for receiving a bone screw, the aperture comprising a seat and an annular groove;
a deformable split ring having a proximal end, a distal end, and a curved portion between the proximal and distal ends, the split ring overlying the aperture in its unbiased locked position, the curved portion of the split ring at least partially retained within the annular groove of the aperture and adapted to be flexed away from the aperture when the bone screw is being inserted through the aperture and then to automatically return to the unbiased locked position over a head of the inserted bone screw; and
a spring mount rotatably mounted in a recess of the base plate which is located adjacent to and intersects the aperture, the spring mount comprising a notch, wherein the proximal end of the split ring is retained within the notch, and wherein when the spring mount is rotated, the split ring is also rotated such that the curved portion of the split ring rotates away from the head of the inserted bone screw to allow the inserted bone screw to be removed for purposes of a revision surgery.