Instrumentation and method for creating an intervertebral space for receiving an implant
OwnerGary K. Michelsoninventor
Life of this patent
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Abstract
A surgical instrument set for use in spinal surgery for forming a substantially quadrilateral space in the spine for implanting a spinal implant at least in part into and at least in part across a disc space between adjacent vertebral bodies and methods of use are disclosed. The instrument set includes an extended guard for providing protected access to the disc space and the adjacent surfaces of the adjacent vertebral bodies, a guide insertable into the guard, and a bone removal device insertable into said guide.
Claims129
A surgical instrument set for use in spinal surgery for forming a substantially quadrilateral space in the spine for implanting a spinal implant into a disc space between adjacent vertebral bodies, said surgical instrument set comprising:
- a guard having an opening for providing protected access to the disc space and the adjacent surfaces of the vertebral bodies adjacent the disc space and having a disc penetrating extension extending from said guard for insertion into the disc space between the adjacent vertebral bodies and for bearing against the adjacent vertebral endplates of the adjacent vertebral bodies;
- and
- a guide for guiding a bone removal device, said guide having a shaft adapted to be inserted into said guard, said guide including means for guiding the formation of a substantially quadrilateral space across the height of the disc space and into the adjacent surfaces of the adjacent vertebral bodies.
A method for creating a substantially quadrilateral space in a spine for inserting a spinal implant into a disc space between adjacent vertebral bodies, said method comprising the steps of:
- positioning a guard into contact with the adjacent vertebral bodies for protecting access to the disc space and the adjacent vertebral bodies;
- and
- boring, through said guard, a plurality of bores across the disc space to form said substantially quadrilateral space across the height of the disc space and into the adjacent surfaces of the adjacent vertebral bodies.
A method for creating a substantially quadrilateral space in a spine for inserting a spinal implant into a disc space between adjacent vertebral bodies, said method comprising the steps of:
- positioning a guard into contact with the adjacent vertebral bodies for protecting access to the disc space and the adjacent vertebral bodies;
- boring, through said guard, a plurality of bores across the disc space to form said substantially quadrilateral space in the spine;
- and
- compressing outer edges of said substantially quadrilateral space.
A surgical method to prepare a segment of a human spine having a disc and two vertebral bodies adjacent the disc for fusion between body portions of the adjacent vertebral bodies and through the space previously occupied by the disc, each of the adjacent vertebral bodies to be fused including a vertebral body having an endplate outer surface adjacent the disc space, and a subchondral zone immediately internal to each endplate, said method comprising:
- positioning a guard into contact with the adjacent vertebral bodies for protecting access to the disc space and the adjacent vertebral bodies;
- and
- forming, through said guard, a plurality of bores to form a substantially quadrilateral space in the spine across the height of the disc space and into the adjacent endplates of the vertebral bodies adjacent the disc space, said quadrilateral space being formed by the removal of at least bone from at least the adjacent endplates as deep as within, and generally not deeper than, the subchondral zone of each of the adjacent endplates.
A method for creating a substantially quadrilateral space in a spine for inserting a spinal implant into a disc space between adjacent vertebral bodies, said method comprising the steps of:
- orienting a template relative to the adjacent vertebral bodies into which the substantially quadrilateral space is created;
- and
- boring, through said template, a plurality of bores across the disc space to form said substantially quadrilateral space across the height of the disc space and into the adjacent surfaces of the adjacent vertebral bodies.
Dependencies are inferred from the claim text.