Spinal Facet Bone Screw System
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United States of America Patent
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-
N/A
Issued Date -
Dec 22, 2011
app pub date -
Jun 17, 2011
filing date -
Jun 17, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A spinal facet bone screw system provides tactile feedback to the user during installation to aid in determining when one or more components of the spinal facet bone screw system have been installed or implanted. The spinal facet bone screw system has a spinal facet screw and a washer. Tactile installation feedback is provided at an interface between a friction surface of the head of the spinal facet screw and a friction surface of the pocket of the washer to determine when the spinal facet screw has reached its full insertion depth. The bottom or undersurface of the washer that abuts a spinal facet bone or other spinal component during installation may be configured and/or textured to further provide tactile installation feedback as between the washer and the bone or other spinal component.
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