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US 12,599,413 B2Granted
Composite material spinal implant
AssigneeCarboFix Spine Inc.
InventorsMordechay Beyar, Oren Globerman, Daniel Umansky
Life of this patent
Estimating the term…
Abstract
Some embodiments relate to a pedicle screw implant construct kit, comprising: at least one pedicle screw including a head; an embracing structure shaped and sized for embracing at least a portion of the screw head; an upper fastener for mounting onto the embracing structure, the upper fastener having a polygonal profile at least on a face of the upper fastener facing a direction opposite the screw.
Claims20
A pedicle screw implant construct kit, comprising:
- an elongated rod;
- a pedicle screw including an integrally formed screw head;
- a lower fastener having a proximal end and a distal end, wherein said lower fastener includes a recess extending distally from said lower fastener proximal end, said recess sized and shaped for receiving said elongated rod, and wherein said lower fastener includes a hole extending through said lower fastener;
- an embracing structure having an adaptor configured to fit at least partly inside said lower fastener, distal to said elongated rod, said embracing structure defining a recess for a portion of the screw head, wherein said adaptor is formed of two discrete components each including an opposing surface wherein, when positioned inside said lower fastener, said opposing surfaces of said first and second adaptor portions oppose each other;
- and
- a restricting pin configured to extend through said hole, wherein said restricting pin is configured to be directed toward said opposing surfaces of said two discrete adaptor components when extended through said hole and is configured to lock said adaptor at a selected orientation relative to said lower fastener;
- and
- wherein each of the elongated rod, said pedicle screw, said lower fastener, and said adaptor comprises composite material including reinforcing filaments embedded in a polymer matrix.
5 more elements
A method of assembling pedicle screw implant construct, comprising:
- providing a pedicle screw including a screw head and a lower fastener having a proximal end and a distal end, wherein said lower fastener includes a recess extending distally from said lower fastener proximal end, said recess sized and shaped for receiving an elongated rod, wherein said lower fastener includes a hole extending through said lower fastener;
- implanting said pedicle screw in a spinal vertebra;
- positioning the elongated rod through a passage defined by said recess in said lower fastener;
- providing an embracing structure having an adaptor formed of two discrete components each including an opposing surface wherein, when positioned inside the lower fastener, the opposing surfaces of the first and second adaptor portions oppose each other, the adaptor configured to fit at least partly inside said lower fastener, distal to said elongated rod, said embracing structure defining a recess for a portion of the screw head;
- locking said adaptor against said elongated rod in said lower fastener recess;
- and
- inserting a restricting pin through said hole and directing the restricting pin toward the opposing surfaces of the two discrete adaptor components when extended through the hole to lock the adaptor at a selected orientation relative to a portion of said lower fastener;
- wherein said elongated rod, said pedicle screw, said lower fastener, and said adaptor each comprises composite material including reinforcing filaments embedded in a polymer matrix.
5 more elements
Dependencies are inferred from the claim text.