Spinal implant having a compressible insert
AssigneeWarsaw Orthopedic, Inc.
InventorsIan Dunkley, Jerbrena C. Jacobs, Jason A. Rister, Dawin A. Rodriguez Santiago
Life of this patent
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Abstract
A spinal implant for insertion into and positioning in an intervertebral space is provided. The insert comprises a compressible support configured to change the height of the insert, wherein the insert comprises a first portion having a first surface and a compressible support adjacent to the first surface; and a second portion having a second surface and a second compressible support adjacent to the second surface. A method for fusing two adjacent vertebrae utilizing the spinal implant including the bone insert is also provided.
Claims19
A spinal implant for positioning between adjacent vertebrae, the spinal implant comprising a first contact surface and a second contact surface, the first contact surface and the second contact surface configured to contact adjacent vertebrae;
- and a gap configured to receive an insert;
- the insert configured to have a compressible height such that in a compressed state, the height of the insert is shorter than a height of the spinal implant and in an expanded state, the height of the insert is configured to extend beyond the first contact surface and the second contact surface, the insert further having a first portion and a second portion, the first portion comprising a first surface and a compressible support adjacent to the first surface and the second portion having a second surface and a second compressible support adjacent to the second surface of the insert, wherein the insert further comprising a middle portion between the first portion and the second portion, the middle portion comprising a pillar extending across the height of the middle portion and a block.
A spinal implant for transforaminal interbody fusion of lumbar vertebral column segments, the spinal implant comprising a main body having a first surface and a second surface situated opposite the first surface, the first surface and the second surface configured to contact vertebral column segments, the main body also having an inner perimeter, a filling hole, and an engagement part, the engagement part having a recess configured to allow a portion of a positioning instrument to position the spinal implant between vertebral column segments;
- and an insert disposed in the filling hole, the insert comprising a first portion having a first surface and a compressible support adjacent to the first surface;
- and a second portion having a second surface and a second compressible support adjacent to the second surface, wherein the insert further comprises a middle portion between the first portion and the second portion, the middle portion comprising a pillar extending across the height of the middle portion and a block.
A method for fusing two adjacent vertebrae, the method comprising placing a spinal implant having at least two ends into an intervertebral space adjacent vertebrae in need of fusion, the spinal implant configured to receive an insert;
- placing the insert into the spinal implant and compressing the insert into a compressed state, wherein a height of the insert is the same or shorter than a height of the spinal implant, the insert comprising a first portion having a first surface and a compressible support adjacent to the first surface;
- and a second portion having a second surface and a second compressible support adjacent to the second surface, wherein the insert further comprises a middle portion between the first portion and the second portion, the middle portion comprising a pillar extending across the height of the middle portion and a block.
Dependencies are inferred from the claim text.