# US 9,750,541 B2 · Conforming bone stabilization receiver > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,750,541 B2 - Document ID: US9750541B2 - Status: Granted - Kind: B2 - Application number: 14/799,607 - Filed: 2015-07-15 - Published: 2015-11-05 - Granted: 2017-09-05 - Earliest claimed: 2011-06-03 - Assignees: Globus Medical, Inc. - Applicants: Globus Medical, Inc. - Inventors: Noah Hansell - Web page: https://patentgrep.com/patent/US9750541B2 ## CPC - A61B 17/7032: {Screws or hooks with U-shaped head or back through which longitudinal rods pass} - A61B 17/7035: {Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other} - A61B 17/7041: {with single longitudinal rod offset laterally from single row of screws or hooks (A61B17/7044 takes precedence)} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## 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. ## Claims ### Claim 1 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. ### Claim 2 (depends on 1) The spinal system of claim 1, wherein from the front view, the projection is blocked by a surface of the base. ### Claim 3 (depends on 1) The spinal system of claim 1, wherein at least one of the first receiver assembly and the second receiver assembly further comprise a second projection connectable to one of said base and said receiver. ### Claim 4 (depends on 3) The spinal system of claim 3, wherein the second projection is operable to limit a lateral movement of said receiver relative to said base. ### Claim 5 (depends on 3) The spinal system of claim 3, wherein the second projection is positioned adjacent to an end of the projection. ### Claim 6 (depends on 1) The spinal system of claim 1, wherein said base includes a chamber for receiving the fastener and a clamping element for clamping the head of the bone screw within said chamber. ### Claim 7 (depends on 1) The spinal system of claim 1, wherein said first extension and second extension are configured to receive a set screw. ### Claim 8 (depends on 1) The spinal system of claim 1, wherein said flange extends along at least two sides of the base or receiver to which it is associated. ### Claim 9 (depends on 1) The spinal system of claim 1, wherein said projection is a flange extending along at least two sides of the base or receiver which is not associated with said flange. ### Claim 10 (depends on 1) The spinal system of claim 1, wherein a gap between said projection and said flange enables relative movement between said receiver and said base in the lateral direction. ### Claim 11 (depends on 1) The spinal system of claim 1, wherein the elongate rod is either rigid or flexible. ### Claim 12 (depends on 1) The spinal system of claim 1, wherein from a bottom to top direction, the receiver has a bottommost width that is greater than or equal to an uppermost width. ### Claim 13 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. ### Claim 14 (depends on 13) The system of claim 13, further comprising a set screw received downwardly through the first extension and the second extension. ### Claim 15 (depends on 13) The system of claim 13, wherein the stabilizing member is rigid or flexible. ### Claim 16 (depends on 13) The system of claim 13, wherein the projection comprises a tie bar, wherein the receiver slides relative to the base along the tie bar. ### Claim 17 (depends on 13) The system of claim 13, wherein from a bottom to top direction, the receiver has a bottommost width that is greater than or equal to an uppermost width. ### Claim 18 (depends on 13) The system of claim 13, wherein a gap between said projection and said flange enables relative movement between said receiver and said base in the lateral direction. ### Claim 19 (depends on 13) The system of claim 13, further comprising a limiting member for limiting lateral movement between the receiver and the base, wherein the limiting member is positioned adjacent to an end of the projection. ### Claim 20 (depends on 13) The system of claim 13, wherein the first extension and the second extension each have one or more indentations formed on a front surface or side surface thereof.