Rod persuader, system and method

摘要

A spinal rod persuader, system and method can include an outer tube, an inner tube, and a locking element. A first actuation mechanism can be movable in a linear fashion along a longitudinal axis direction to cause the locking element to move in a linear fashion over the inner tube and to lock the inner tube onto a pedicle screw. A second actuation mechanism can be rotated to cause the outer tube to move in a longitudinal axis direction with respect to the inner tube to push the spinal rod into a final position with respect to the pedicle screw while the pedicle screw is locked to the inner tube. A slot and/or tab structure can be provided in the outer tube such that actuation of the slot/tab will allow disassembly of the inner tube, outer tube and locking element with respect to each other.

主权项

1. A spinal rod persuader, comprising:
an outer tube including an outer tube distal end and an outer tube proximal end, the outer tube having a central axis coaxial with and extending along a longitudinal axis of the rod persuader; an inner tube including an inner tube distal end and an inner tube proximal end, the inner tube at least partially located in the outer tube; a locking element located between the inner tube and the outer tube, the locking element configured to move with respect to the inner tube from a first unlocked position to a second locked position along a longitudinal axis direction of the inner tube; a first actuation mechanism connected to the locking element, wherein linear movement of the first actuation mechanism in the longitudinal axis direction causes the locking element to move relative to at least one of the inner tube and outer tube in the longitudinal axis direction; and a second actuation mechanism connected to the outer tube, wherein rotation of the second actuation mechanism with respect to the outer tube causes the outer tube to move in the longitudinal axis direction with respect to the inner tube.