Method and apparatus for detecting seizures including loose electrode monitoring
First Claim
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1. A method of monitoring a patient for seizure activity by collecting data with an electromyography sensor and for checking the contact integrity of electrodes included in the sensor, the method comprising:
- positioning a pair of detection electrodes and a common electrode on the skin of a patient on or near at least one muscle in order to provide a group of positioned electrodes, said pair of detection electrodes being connected to inputs of a differential amplifier, said electromyography sensor being configured to maintain an imbalance potential at said inputs of said differential amplifier when said contact integrity is maintained between the skin and said group of positioned electrodes, wherein the imbalance potential enhances amplification of a test signal collected by said pair of detection electrodes;
applying said test signal to said common electrode;
collecting a signal from said pair of detection electrodes;
analyzing said collected signal for characteristics of seizure activity;
analyzing said collected signal for detection of said test signal; and
determining based on the detection of said test signal whether said contact integrity is maintained between the skin and said group of positioned electrodes.
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Abstract
Apparatuses and methods for monitoring a patient for seizure activity and for verifying the contact integrity of electrodes included among an EMG sensor may include generating a test signal of known periodicity and applying the signal to at least one electrode in a sensor system. The test signal may be monitored to verify contact integrity of the electrodes.
35 Citations
23 Claims
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1. A method of monitoring a patient for seizure activity by collecting data with an electromyography sensor and for checking the contact integrity of electrodes included in the sensor, the method comprising:
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positioning a pair of detection electrodes and a common electrode on the skin of a patient on or near at least one muscle in order to provide a group of positioned electrodes, said pair of detection electrodes being connected to inputs of a differential amplifier, said electromyography sensor being configured to maintain an imbalance potential at said inputs of said differential amplifier when said contact integrity is maintained between the skin and said group of positioned electrodes, wherein the imbalance potential enhances amplification of a test signal collected by said pair of detection electrodes; applying said test signal to said common electrode; collecting a signal from said pair of detection electrodes; analyzing said collected signal for characteristics of seizure activity; analyzing said collected signal for detection of said test signal; and determining based on the detection of said test signal whether said contact integrity is maintained between the skin and said group of positioned electrodes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification