Spinal motion preservation devices and methods of use
OwnerM.S. Abdouinventor
Life of this patent
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Abstract
Orthopedic implants are adapted to replace the function of a natural disc of the spine. In an embodiment, the implant can be placed across the disc space through a trans-pedicular corridor using a substantially posterior surgical approach. In another embodiment, an implant can be placed across the disc space at a different level through a substantially lateral or anterior approach.
Claims23
-13. (canceled)
An orthopedic assembly for implantation onto a first vertebral bone and a second adjacent vertebral bone, and into an intervening inter-vertebral disc space, said orthopedic assembly comprising:
- an anchor member configured to be placed through a pedicle portion of said first vertebral bone;
- and
- a second member configured to be placed at least partially through said pedicle portion of said first vertebral bone, said second member comprising a cavity configured to house a bone forming material configured to form a bony fusion with at least a portion of said first vertebral bone;
- wherein said second member comprises a proximal aspect and a distal aspect, said second member extending from said proximal aspect to said distal aspect along at least a curvilinear segment;
- and
- wherein a proximal aspect of said second member is configured to be coupled to a proximal aspect of said anchor member.
A method for the implantation of an orthopedic device assembly onto a first vertebral bone and a second adjacent vertebral bone, and into an intervening inter-vertebral disc space, said method comprising:
- identifying a first pedicle of said first vertebral bone;
- advancing a first anchor member of said assembly at least partially through said first pedicle and into a body of said first vertebral bone, said anchor member being separated from contact with said second vertebral bone;
- advancing a second member of said assembly at least partially through said first pedicle and into said body of said first vertebral bone;
- advancing a bone forming material through said first pedicle and into a cavity of said second member subsequent to said act of advancing said second member into said first vertebral bone, said bone forming material configured to form a bony fusion with at least a portion of said first vertebral bone;
- passing a distal segment of said second member into said intervening disc space, at least a portion of said distal segment being positioned to about a surface of said second vertebral bone;
- and
- coupling a proximal segment of said second member to said anchor member.
A method for stabilization of a spinal segment comprising a first vertebral bone, a second adjacent vertebral bone, and an intervening inter-vertebral disc space, said method comprising:
- identifying a first pedicle of said first vertebral bone;
- advancing a first member of said assembly at least partially through said first pedicle and into a body of said first vertebral bone, said anchor member, once implanted within said first vertebral bone, being separated from contact with said second vertebral bone;
- advancing a second member of said assembly at least partially through said first pedicle and into said first vertebral bone, said second member comprising a substantially curvilinear feature;
- passing a distal segment of said curvilinear feature of said second member into said intervening disc space, said distal segment being positioned to abut a bony surface of said second vertebral bone;
- and
- coupling a proximal segment of said curvilinear feature of said second member to said anchor member.
Dependencies are inferred from the claim text.