Patent ID: 11877774
Assignee: ZIMMER BIOMET SPINE, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 7:
8. A bone anchor threaded sleeve comprising:
a bowl portion having an outer diameter larger than a shaft diameter of a fastener shaft of a bone anchor;
a saddle extending from the bowl portion in a first direction, the saddle configured to engage a housing of the bone anchor to limit movement of the housing relative to the fastener shaft in a first direction, the saddle further configured to allow movement of the housing in a second direction different from the first direction; and
a sleeve portion extending from the bowl portion in a second direction opposite the saddle, the sleeve portion comprising:
a bore extending through the bowl portion, the bore sized to receive the fastener shaft of the bone anchor;
an outer surface having a diameter larger than the bore; and
a circumferential bone engaging feature located on the outer surface,

wherein the bone anchor threaded sleeve is configured to allow the housing to move about the head of the fastener while the bone anchor threaded sleeve remains stationary about the head of the fastener.