Systems for spinal stabilization
AssigneeGlobus Medical, Inc.
InventorsMichael Harper, Milan George
Life of this patent
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Abstract
Systems, devices and methods related to spinal stabilization are provided. A system can comprise a plurality of cross-links. Each of the cross-links can include a central rod holder that extends substantially along a mid-line of the spine and a pair of extension members extending from the central rod holder. The extension members can be secured to a vertebral body via a fixation device, such as a spinal screw or a hook member having serrations and/or side-cuts. One or more rod members can be extended across the central rod holders of the cross-links, thereby forming a stable spinal stabilization system providing bilateral stress distribution across different levels of the spine.
Claims19
A method for spinal stabilization comprising:
- providing a plurality of cross-links, each of the cross-links including a central rod holder and first and second extension members extending therefrom;
- operably attaching each of the cross-links to a vertebral body, whereby attachment comprises:
- attaching the first extension member to a first fixation member, wherein the first fixation member is attached to the vertebral body, wherein the first fixation member comprises a pair of upwardly extending arms for receiving a rod therein and a downwardly extending mouth having a curved portion that transitions into a flat portion, wherein at least one of the upwardly extending arms includes a first end and a second end, an outside surface that extends between the first end and the second end, an inside surface configured to face the rod, an aperture extending from the outside surface to the inside surface, and a side-cut, wherein the side-cut is formed on at least one of the first end and the second end and opens into a channel formed by the pair of upwardly extending arms;
- and attaching the second extension member to a second fixation member, wherein the second fixation member is attached to the vertebral body;
- and
- securing a rod member to the central rod holder of two or more cross-links, thereby creating a stabilized system across multiple levels of the spine
- wherein each one of the at least one of the upwardly extending arms include recessed portions that are configured to engage with a insertion instrument
- wherein the aperture of each of the upwardly extending arms are positioned in the recessed portions of the upwardly extending arms.
A method for spinal stabilization comprising:
- providing one or more cross-links configured to extend across a mid-line of a spine;
- attaching a first portion of a cross-link to a first fixation member, wherein the first fixation member is attached to a vertebral body, wherein the first fixation member comprises a pair of upwardly extending arms for receiving a rod therein and a downwardly extending mouth having a curved portion that transitions into a flat portion, wherein at least one of the upwardly extending arms includes first end and a second end, an outside surface that extends between the first end and the second end, an inside surface configured to face the rod, an aperture extending from the outside surface to the inside surface, and a side-cut, wherein the side-cut is formed on at least one of the first end and the second end and opens into a channel formed by the pair of upwardly extending arms;
- and
- attaching a second portion of the cross-link to a second fixation member, wherein the second fixation member is attached to a vertebral body
- wherein each one of the at least one of the upwardly extending arms include recessed portions that are configured to engage with a insertion instrument
- wherein the aperture of each of the upwardly extending arms are positioned in the recessed portions of the upwardly extending arms.
A method for spinal stabilization comprising:
- providing one or more cross-links configured to extend across a mid-line of a spine;
- attaching a first portion of a cross-link to a first fixation member, wherein the first fixation member is attached to a vertebral body, wherein the first fixation member comprises a pair of upwardly extending arms for receiving a rod therein and a downwardly extending mouth having a curved portion that transitions into a flat portion, wherein at least one of the upwardly extending arms includes a first end and a second end, an outside surface that extends between the first end and the second, an inside surface configured to face the rod, an aperture extending from the outside surface to the inside surface, and a side-cut, wherein the side-cut is formed on at least one of the first end and the second end and opens into a channel formed by the pair of upwardly extending arms;
- and
- attaching a second portion of the cross-link to a second fixation member, wherein the second fixation member is attached to a vertebral body;
- wherein at least one of the first fixation member and the second fixation member is a hook member having a pair of arms forming a channel
- wherein each one of the at least one of the upwardly extending arms include recessed portions that are configured to engage with a insertion instrument
- wherein the aperture of each of the upwardly extending arms are positioned in the recessed portions of the upwardly extending arms.
Dependencies are inferred from the claim text.