Spinal correction system and method
AssigneeWarsaw Orthopedic, Inc.
InventorsWilliam Alan Rezach, Charles Anthony Dickinson, Rodney Ballard
Life of this patent
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Abstract
A surgical instrument comprises a first member having a first surface defining a first cavity for disposal of a first implant. A distal end is configured to mate with a recess of a connector and defines a second cavity. A second member is configured for movable disposal in the second cavity. A third member is connected to the proximal end of the second member and the first implant. The second member is axially movable in a first direction to tension the first implant and in a second direction to release tension from the first implant. Methods of use are disclosed.
Claims19
A surgical instrument comprising:
- a first member having a first surface defining a first cavity for disposal of a first implant and a distal end configured to mate with a recess of a connector, the first member defining a second cavity;
- a second member configured for movable disposal in the second cavity;
- and
- a third member connected to the proximal end of the second member and the first implant,
- wherein the second member is axially movable in a first direction to tension the first implant and in a second direction to release tension from the first implant,
- wherein the third member includes a lateral projection and the first implant includes a plurality of spaced apart axial openings, the projection being disposable in the openings.
A spinal implant system comprising:
- a connector including an outer surface defining a recess and a first passageway and a second passageway disposed in a transverse orientation relative to the first passageway;
- a tether being disposable in at least the first passageway and extending between a proximal end and a distal end, the tether comprising a plurality of spaced apart lateral openings disposed longitudinally therealong, the distal end of the tether including a loop configured for disposal about vertebrae;
- a spinal rod being disposable in at least the second passageway and extending between a first end and a second end;
- and
- an instrument defining a longitudinal axis and including a body extending between a proximal end and a distal end, the body including an outer surface having a concave portion defining an axial channel configured for disposal of the tether, the outer surface of the body defining a lateral opening disposed in communication with the axial channel, the distal end of the body including an angled surface and a reduced diameter portion configured to mate with the recess, the body further including an inner threaded surface that defines a translation cavity,
- the instrument further including a lead screw including a threaded outer surface engageable with the inner threaded surface, and
- the instrument further including a handle fixed with the lead screw via a pinned interface such that the lead screw is relatively rotatable therefrom, the handle including a lateral projection configured for disposal in the lateral openings, the handle defining a lateral opening disposed in communication with the axial channel,
- wherein the lead screw is rotatable in a clockwise direction to cause axial translation of the body relative to the lead screw in a first direction such that the projection tensions the tether and the lead screw is rotatable in a counter clockwise direction to cause axial translation of the body relative to the lead screw in a second direction to release tension from the tether.
A method for treating a spine disorder, the method comprising the steps of:
- providing a first flexible implant;
- disposing the first flexible implant with a first vertebra;
- providing a first connector including an outer surface defining a recess and an inner surface defining a first passageway and a second passageway;
- disposing the first flexible implant in the first passageway;
- providing a second implant;
- disposing the second implant in the second passageway;
- providing an instrument comprising:
- a first member having a first surface defining a first cavity and a distal end, the first member defining a second cavity,
- a second member configured for movable disposal in the second cavity, and
- a third member connected to the proximal end of the second member;
- disposing the first flexible implant in the first cavity;
- mating the distal end with the recess;
- delivering the connector to adjacent the first vertebra with the instrument;
- connecting the first flexible implant with the third member;
- and
- axially translating the first member relative to the second member in a first direction such that the third member tensions the first flexible implant and in a second direction such that the third member releases tension from the first flexible implant.
Dependencies are inferred from the claim text.