Intraoperative neurophysiological monitoring system
First Claim
1. A surgical system kit, comprising:
- a surgical access instrument having a body configured to form an operative corridor at a surgical target site within a patient;
a first electrode and a second electrode configured to be placed proximate to a nerve path of a nerve within the patient, one of the first electrode and the second electrode configured to apply a physical agent and another one of the first electrode and the second electrode configured to receive a neural response from the patient, the first electrode and the second electrode being on an outer surface of the body of the surgical access instrument spaced a predetermined distance apart and located for contacting nerve-containing tissue;
one or more patient modules configured to be connected to the first and second electrodes and configured to stimulate one of the first and second, electrodes and receive information indicative of the neural response from a segment of the nerve path proximate to the first and second electrodes from another one of the first and second electrodes; and
a control unit configured to be coupled to the one or more patient modules, receive the information indicative of the neural response from the segment of the nerve path proximate to the first electrode and the second electrode on the outer surface of the body of the surgical access instrument, and interpret the information according to a nerve conduction velocity modality to determine the nerve conduction velocity of the segment of the nerve.
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Accused Products
Abstract
A surgical system kit is described. The surgical system kit includes a peripheral electrode, a surgical access instrument configured to be placed in a surgical target site, and a control unit. The surgical access instrument has a body with a proximal end, and a distal end, two or more electrodes on the distal end at fixed locations and spaced apart a known distance. The control unit is configured to send a signal to the peripheral electrode, receive information indicative of a neural response from at least one electrode of the surgical access instrument, and interpret the information according to a nerve conduction velocity modality to measure the nerve conduction velocity through the segment of the nerve.
185 Citations
8 Claims
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1. A surgical system kit, comprising:
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a surgical access instrument having a body configured to form an operative corridor at a surgical target site within a patient; a first electrode and a second electrode configured to be placed proximate to a nerve path of a nerve within the patient, one of the first electrode and the second electrode configured to apply a physical agent and another one of the first electrode and the second electrode configured to receive a neural response from the patient, the first electrode and the second electrode being on an outer surface of the body of the surgical access instrument spaced a predetermined distance apart and located for contacting nerve-containing tissue; one or more patient modules configured to be connected to the first and second electrodes and configured to stimulate one of the first and second, electrodes and receive information indicative of the neural response from a segment of the nerve path proximate to the first and second electrodes from another one of the first and second electrodes; and a control unit configured to be coupled to the one or more patient modules, receive the information indicative of the neural response from the segment of the nerve path proximate to the first electrode and the second electrode on the outer surface of the body of the surgical access instrument, and interpret the information according to a nerve conduction velocity modality to determine the nerve conduction velocity of the segment of the nerve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification