Nerve monitoring during electrosurgery
First Claim
1. A signal processing module for a nerve integrity monitoring system adapted to sense electrical signals from a patient during operation of an electrosurgical unit and/or surgical metal-to-metal artifacts, the signal processing module comprising:
- an input module electrically coupled to a plurality of sensing probes and adapted to simultaneously receive a plurality of input signals from each of the plurality of sensing probes, a first input signal of the plurality of input signals indicative of electromyographic (EMG) activity of the patient and a second input signal of the plurality of input signals indicative of an artifact of metal-to-metal contact;
an EMG detection module coupled to the input module and adapted to detect conditions in the first input signal and classify the conditions as a function of a level of EMG activity received from the patient;
an artifact detection module adapted to detect the artifact in the second signal; and
an output module coupled to the EMG detection module and the artifact detection module and adapted to simultaneously provide a first output signal indicative of the detected conditions in the first input signal and provide a second output signal indicative of the artifact.
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Accused Products
Abstract
A signal processing module includes an input module electronically coupled to a sensing probe of a nerve integrity monitoring system. The probe senses electrical signals from a patient during operation of an electrosurgical unit. The input module receives an input signal from the probe. An EMG detection module is coupled to the input module and is adapted to detect conditions in the input signal. The conditions are classified as a function of a level of electromyographic activity. An output module, coupled to the EMG detection module, provides an indication of electromyographic activity in the input signal based on the detected conditions.
178 Citations
25 Claims
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1. A signal processing module for a nerve integrity monitoring system adapted to sense electrical signals from a patient during operation of an electrosurgical unit and/or surgical metal-to-metal artifacts, the signal processing module comprising:
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an input module electrically coupled to a plurality of sensing probes and adapted to simultaneously receive a plurality of input signals from each of the plurality of sensing probes, a first input signal of the plurality of input signals indicative of electromyographic (EMG) activity of the patient and a second input signal of the plurality of input signals indicative of an artifact of metal-to-metal contact; an EMG detection module coupled to the input module and adapted to detect conditions in the first input signal and classify the conditions as a function of a level of EMG activity received from the patient; an artifact detection module adapted to detect the artifact in the second signal; and an output module coupled to the EMG detection module and the artifact detection module and adapted to simultaneously provide a first output signal indicative of the detected conditions in the first input signal and provide a second output signal indicative of the artifact. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A nerve integrity monitoring system for use during operation of an electrosurgical unit, comprising:
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a plurality of sensing probes adapted to generate a plurality of input signals, the plurality of input signals including a first input signal indicative of electromyographic (EMG) activity of the patient and a second input signal indicative of an artifact of metal-to-metal contact; an input module electrically coupled to the sensing probe and adapted to receive the plurality of input signals; an EMG detection module coupled to the input module and adapted to detect conditions in the first input signal and classify the conditions as a function of a level of EMG activity received from the patient; an artifact detection module adapted to detect the artifact in the second input signal; and an output module, coupled to the EMG detection module and the artifact detection module, and adapted to simultaneously provide a first output signal indicative of the detected conditions in the first input signal and provide a second output signal indicative of the artifact. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification