Patent ID: 11903621
Assignee: K2M, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A surgical method comprising:
coupling a first rod reduction device to a first bone screw that is disposed in a first vertebra;
coupling a second rod reduction device to a second bone screw that is disposed in a second vertebra, each of the first and second rod reduction devices including:
a fork assembly body having opposed openings defining a passage therethrough, the passage including internal threads,
an elongated threaded screw shaft positioned in the passage such that external threads of the elongated threaded screw shaft engage the internal threads of the passage,
a first arm coupled to a first side of the fork assembly body at a first pivot point and a second arm coupled to a second and opposite side of the fork assembly body at a second pivot point different from the first pivot point, a first position of the first and second arms configured to engage a head of the respective bone screw, a second position of the first and second arms configured to allow separation of the rod reduction device from the head of the respective bone screw, the first and second arms transitionable between first and second positions with the elongated threaded screw shaft rotatably coupled with the internal threads of the passage, and
a rod contact member disposed at a distal portion of the elongated threaded screw shaft, the rod contact member movable towards and away from distal portions of the first and second arms in response to rotation of the elongated threaded screw shaft;

operating the first rod reduction device to reduce a rod towards a rod receiving notch of the first bone screw; and
operating the second rod reduction device to reduce the rod towards a rod receiving notch of the second bone screw.