Back to results
US 12,589,003 B2Granted
Spinal interbody spacer
AssigneeAstura Medical Inc.
InventorsRoss Dusterhoft, Thomas Purcell
Life of this patent
Estimating the term…
Abstract
Disclosed is a spinal interbody spacer that includes a spinal spacer body with an asymmetrical open end, an asymmetrical screw fixation plate configured to couple with the asymmetrical open end, and a locking mechanism configured to lock the screw fixation plate and the spinal spacer body together.
Claims14
A modular interbody spacer for placement between adjacent vertebrae comprising:
- a spacer body having upper and lower vertebrae engagement surfaces with a closed distal end and an open proximal end, the open proximal end having an asymmetrical shape with spacer body end walls with spacer body alignment slots having a spacer body alignment slot surface with a spacer body alignment slot recess or pocket;
- an asymmetrical screw fixation plate having upper and lower bone vertebrae surfaces with screw fixation plate end walls with screw fixation plate alignment protrusions with a screw fixation plate bore or hole, the screw fixation plate configured to couple with the spacer body end walls and the screw fixation plate alignment protrusions configured to slidably couple with the spacer body alignment slots;
- and
- a locking mechanism slidably positioned within the screw fixation plate bore or hole of the screw fixation plate alignment protrusions, the locking mechanism having a retractable lock tab configured to retract into the screw fixation plate bore or hole during engagement with the spacer body alignment slot surface, and extend from the screw fixation plate bore or hole during engagement with the spacer body alignment slot recess or pocket to lock the screw fixation plate and the spacer body together.
1 more element
A modular interbody spacer for placement between adjacent vertebrae comprising:
- a spacer body having upper and lower vertebrae engagement surfaces with a closed distal end and an asymmetrical open proximal end, the open proximal end having spacer body end walls with spacer body alignment slots having a spacer body alignment slot surface with a spacer body alignment slot recess or pocket;
- an asymmetrical screw fixation plate having upper and lower bone vertebrae surfaces and screw fixation plate alignment protrusions configured to slidably couple with the spacer body alignment slots, each screw fixation plate alignment protrusion having a screw fixation plate bore or hole;
- a locking mechanism having a retractable lock tab slidably positioned in the screw fixation plate bore or hole of the screw fixation plate alignment protrusions, the retractable lock tab configured to retract into the screw fixation plate bore or hole during engagement with the spacer body alignment slot surface of the spacer body alignment slots, and extend from the screw fixation plate bore or hole during engagement with the spacer body alignment slot recess or pocket of the spacer body alignment slots.
Dependencies are inferred from the claim text.