Conforming bone stabilization receiver
AssigneeGlobus Medical, Inc.
InventorNoah Hansell
Life of this patent
Estimating the term…
Abstract
A receiver for engaging a bone stabilizing element includes a receiver portion connectable to the stabilizing element, and a base portion connectable to a bone of a patient. The base portion may connect to the bone with a bone screw, for example a polyaxial bone screw, and the receiver portion may connect to the stabilizing element, for example a rod, using a set screw. The receiver portion and the base portion are slideably connected to each other, coupled and constrained in relative movement, by overlapping portions. Axial rotation between the receiver portion and the base portion is enabled by changing the relative dimensions of overlapped portions.
Claims20
A spinal system:
- an elongate rod;
- a first receiver assembly for receiving a first portion of the elongate rod, wherein the first receiver assembly is capable of fixing into a first bone member;
- and
- a second receiver assembly for receiving a second portion of the elongate rod, wherein the second receiver assembly is capable of fixing into a second bone member, wherein at least one of the first receiver assembly and the second receiver assembly comprises:
- a base, said base including a fastener connecting said base to bone;
- a receiver, said receiver positionable upon said base and including a first extension and a second extension for receiving the elongate rod therein;
- a flange associated with one of said base or said receiver;
- and
- a projection connected to the other of the base or receiver associated with said flange, the projection being in apposition to said flange,
- wherein the receiver slides laterally while in connection with the base, and
- wherein the first extension and the second extension form part of a U-shaped channel for receiving the elongate rod therein, wherein the U-shaped channel includes an anterior opening formed on an anterior side of the first receiver assembly and/or second receiver assembly and a posterior opening formed on a posterior side of the first receiver assembly and/or second receiver assembly, wherein the projection is unexposed on the anterior side of the first receiver assembly and/or second receiver assembly.
A spinal system comprising:
- a base having a first axis and a second axis, said base including a bone screw chamber for receiving a bone screw therein;
- a bone screw received within the bone screw chamber, wherein the bone screw is polyaxial and includes a tapered shaft;
- a receiver connected to the base having a first axis and a second axis, said receiver including a first extension and a second extension, wherein the first extension and the second extension form a channel therethrough;
- a flange associated with one of said base or said receiver;
- and
- a projection connected to the other of the base or receiver associated with said flange, the projection being in apposition to said flange;
- and
- a stabilizing member insertable between the first extension and the second extension, wherein the stabilization member comprises a rod member,
- wherein the receiver slides laterally while in connection with the base,
- wherein at least one of the receiver and the base includes a limiting surface to limit lateral movement of the receiver relative to the base, and
- wherein the first extension and the second extension form part of a U-shaped channel for receiving the stabilizing member therein, wherein the U-shaped channel includes an anterior opening formed on an anterior side of the first receiver assembly and/or second receiver assembly and a posterior opening formed on a posterior side of the first receiver assembly and/or second receiver assembly, wherein the projection is unexposed on the anterior side of the first receiver assembly and/or second receiver assembly.
Dependencies are inferred from the claim text.