Spinal fusion device
OwnerDavid Kruegerinventor
Life of this patent
Estimating the term…
Abstract
A spinal fusion device is disclosed. The spinal fusion device includes a first endplate configured for fitting within a disc space and engaging with a first vertebra and a second endplate configured for fitting within the disc space and engaging with a second vertebra. The two endplates are separated by a single spacer that is positioned between the first endplate and the second endplate and maintains a pre-determined distance between the first endplate and the second endplate. The spacer contains an anterior end, a posterior end, a first lateral side, a second lateral side opposite to the first lateral side, a first surface that engages with the first endplate, a second surface that engages with the second endplate. Also disclosed are methods and instruments for implanting the spinal fusion device.
Claims18
A spinal fusion device, comprising:
- a first endplate configured for fitting within a disc space and engaging with a first vertebra, wherein said first endplate has an anterior end and a posterior end;
- and
- a second endplate configured for fitting within said disc space and engaging with a second vertebra, wherein said second endplate has an anterior end and a posterior end,
- wherein said endplates are separated by a single spacer that maintains a pre-determined distance between said endplates, said spacer comprising:
- an anterior end;
- a posterior end;
- a first lateral side;
- a second lateral side, opposite to said first lateral side;
- a first surface that engages with said first endplate;
- a second surface that is opposite to said first surface and engages with said second endplate;
- and
- a first locking device that engages with said first endplate,
- wherein said first locking device comprises a rotating pin having a cylinder body and a protruding tab, wherein said rotating pin is rotatable between an unlocked position and a locked position, and wherein said protruding tab protrudes into a slot in said first endplate in said locked position to prevent relative movement between said spacer and said first endplate.
A spinal fusion device, comprising:
- a first endplate configured for fitting within a disc space and engaging with a first vertebra, said first endplate has an anterior end and a posterior end;
- and
- a second endplate configured for fitting within said disc space and engaging with a second vertebra, said second endplate has an anterior end and a posterior end,
- wherein said endplates are separated by a single spacer that maintains a pre-determined distance between said endplates, said spacer comprising:
- an anterior end;
- a posterior end;
- a first lateral side;
- a second lateral side, opposite to said first lateral side;
- a first surface that engages with said first endplate;
- a second surface that is opposite to said first surface and engages with said second endplate;
- and
- wherein said first endplate is locked to said spacer by a locking device comprising a spring-loaded plunger in said spacer and a corresponding recess in said first endplate.
Dependencies are inferred from the claim text.