Patent ID: 11925389
Assignee: NUVASIVE SPECIALIZED ORTHOPEDICS, INC
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. An adjustable implant comprising:
an adjustable spinal distraction rod comprising:
an inner rod configured to be coupled to a first bone portion, wherein the inner rod includes at least one longitudinally extending channel formed within an interior surface of the inner rod and including an internal threads, and an externally splined tip at an end of the inner rod,
an outer rod configured to be coupled to a second bone portion, wherein the outer rod includes: a housing containing a lead screw configured to engage with the internal threads and a magnet coupled to the lead screw, wherein the magnet is positioned proximate a first end of the housing and configured to rotate the lead screw within the housing, and at least one longitudinally extending channel formed in an interior surface of the housing,
wherein the splined tip configured to mate with the at least one longitudinally extending channel,

wherein the outer rod is configured to telescopically move relative to the inner rod, and wherein the magnet and the lead screw are configured to rotate about an axis of rotation that is substantially coaxial with a longitudinal axis of telescopic movement of the outer rod relative to the inner rod,
an anchor rod configured to be fixedly secured to a third bone portion; and
a locking swivel joint releasably secured to the anchor rod at a first end and releasably secured to the adjustable spinal distraction rod at a second end, the locking swivel joint having:
a housing coupled with an end of one of the anchor rod and the adjustable spinal distraction rod;
a bushing positioned about a periphery of the other one of the anchor rod and the adjustable spinal distraction rod,

wherein the other one of the anchor rod and the adjustable spinal distraction rod, about which the bushing is positioned, terminates in a ball disposed within the housing of the locking swivel joint; and
a locking nut mounted about the bushing and being moveable about the bushing between a locked configuration and an unlocked configuration,
wherein the locking swivel joint is configured to pivot the adjustable spinal distraction rod relative to the anchor rod in the unlocked configuration, and configured to mechanically lock a position of the adjustable spinal distraction rod relative to the anchor rod in the locked configuration; and
wherein movement of the inner rod with respect to the outer tube is configured to treat a spinal deformity.