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US 8,255,045 B2Granted
Neurophysiologic monitoring system
AssigneeNuVasive, Inc.
InventorsJames Gharib, Allen Farquhar, Doug Layman, Thomas Scholl, Albert Kim, Albert Pothier, Patrick Miles, Josef Gorek, Mark Peterson
Life of this patent
Estimating the term…
Abstract
The present invention relates to a system and methods generally aimed at surgery. More particularly, the present invention is directed at a system and related methods for performing surgical procedures and assessments involving the use of neurophysiology.
Claims32
A system for avoiding harm to nervous tissue during surgery, comprising:
- an instrument capable of advancement to a surgical target site and configured to deliver a stimulation signal at least one of while advancing to said target site and after reaching said target site;
- and
- a processing system programmed with a set of at least three threshold ranges and configured to direct a first stimulation signal to said instrument at a first magnitude corresponding to a boundary between a pair of said ranges, direct a second stimulation signal at a second magnitude corresponding to a boundary between a different pair of said ranges, and to measure at least one response of nerves depolarized by said stimulation signals to indicate at least one of nerve proximity and pedicle integrity.
Dependencies are inferred from the claim text.