Patent ID: 11871974
Assignee: NUVASIVE SPECIALIZED ORTHOPEDICS, INC
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A distraction device comprising:
a distraction rod having a first end and a second end; and
an adjustable portion coupled to the second end of the distraction rod, the adjustable portion comprising:
a sleeve having a bore extending longitudinally through at least a portion of a length of the sleeve;
a lead screw disposed within the bore;
an offset gearing assembly configured to rotatably drive the lead screw into or out of the bore, wherein the offset gearing assembly comprises:
a drive member configured to rotate about an axis of rotation in a first direction, wherein the first direction is one of clockwise or counter clockwise;
a first toothed gear coupled to the drive member, wherein the first toothed gear is configured to be rotated by the drive member in the first direction; and
a second toothed gear coupled to the lead screw, wherein the first toothed gear is configured to cause rotation of the second toothed gear and the lead screw in the first direction; and

a cover disposed over the adjustable portion.