Patent ID: 11911289
Assignee: ZAVATION MEDICAL PRODUCTS, LLC
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 16:
17. An expandable screw for orthopedic insertion and expansion between a collapsed state and an expanded state, comprising:
an upper externally-threaded body segment;
a lower externally-threaded body segment opposite the upper externally-threaded body segment;
and
an expansion member extending along a longitudinal axis thereof, connecting the upper externally-threaded body segment to the lower externally-threaded body segment, and configured, during the expansion between the collapsed state and the expanded state, to separate the upper externally-threaded body segment from the lower externally-threaded body segment,
wherein threads of the upper externally-threaded body segment and the lower externally-threaded body segment disposed on outer peripheral sections of the upper externally-threaded body segment and the lower externally-threaded body segment are configured to secure the screw to a bone segment of a patient,
wherein at least one of the upper externally-threaded body segment and the lower externally-threaded body segment has an elongated aperture contained therewithin, extending in a longitudinal direction, and cutting through multiple turns of the threads, and
wherein the expansion member expands the upper externally-threaded body segment from the lower externally-threaded body segment in a single expansion direction without a radial deflection of the upper externally-threaded body segment from the lower externally-threaded body segment.