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1. (WO2018204676) EXTENSION READY SPINAL SUPPORT SYSTEMS

Pub. No.:    WO/2018/204676    International Application No.:    PCT/US2018/030928
Publication Date: Fri Nov 09 00:59:59 CET 2018 International Filing Date: Fri May 04 01:59:59 CEST 2018
IPC: A61B 17/70
Applicants: ADVANCE RESEARCH SYSTEM, LLC
Inventors: ABBASI, Hamid, R.
Title: EXTENSION READY SPINAL SUPPORT SYSTEMS
Abstract:
An "extension ready" spinal support system, in some embodiments, the existing spinal support rod and pedicle screws can remain intact while extension subassemblies are mounted directly to the existing base rod receptacles, The extension subassemblies include a skirt portion that surrounds and engages the existing base receptacle to prevent splaying of the base receptacle, in some embodiments, the extension receptacle is provided with a low profile by providing a monoaxlal rotation structure that rotates about but does not pitch relative to the extension axis and is shorter relative to polyaxial rotation structures. The spinal support system may include a unitary reinforcement cap that engages both the internal and the external surfaces of the wall segments of the rod receptacle to provide additional strength and structural integrity over conventional set screw arrangements. Additionai resistance to splaying may be provided by a canted thread arrangement between the skirt and the base receptacle.