Self-contained EEG recording system

Inventors

Dudek, Francis E. • Elwood, Michael K. • Fisher, John H. • Lehmkuhle, Mark J. • Wheeler, Jean M.

Assignees

Epitel Inc

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Publication Number

US-11633139-B2

Patent

Publication Date

2023-04-25

Expiration Date


Abstract

Disclosed systems include a self-contained electroencephalogram (EEG) recording patch comprising a first electrode, a second electrode and wherein the first and second electrodes cooperate to measure a skin-electrode impedance, a substrate containing circuitry for generating an EEG signal from the measured skin-electrode impedance, amplifying the EEG signal, digitizing the EEG signal, and retrievably storing the EGG signal. The patch also comprises a power source and an enclosure that houses the substrate, the power source, and the first and second electrodes in a unitary package.

Core Innovation

The invention relates to an electroencephalogram (EEG) monitoring device that includes a water-resistant unitary housing. The device supports a first electrode and a second electrode, where each electrode is supported by a first electrode printed circuit board and a second electrode printed circuit board. The first and second electrodes are configured to be attached to a scalp of a patient and to sense EEG signals while the housing encloses the electrode printed circuit boards and supporting printed circuit board.

The device includes a printed circuit board supporting a power source and a wireless transmitter configured to transmit the EEG signals. The first electrode printed circuit board, the second electrode printed circuit board, and the printed circuit board are enclosed in the water-resistant unitary housing, and surfaces of the first and second electrodes are exposed on a surface of the water-resistant unitary housing. The first and second electrode printed circuit boards are surface mounted to the printed circuit board, supported by the printed circuit board, and protrude from the printed circuit board.

The invention further includes a system and method for remote EEG monitoring using wireless transmission. A single channel EEG signal is determined from the EEG signals received from the wireless transmitter using bipolar derivation, and the single channel EEG signals are analyzed to identify a seizure. Responsive to identifying the seizure, the system is configured to generate and transmit an alert, including an alert to a remote computing device, and to store EEG signals as an electronic medical record.

Claims Coverage

The independent claims cover 5 inventive features: a water-resistant unitary EEG monitoring device with exposed scalp electrodes; a printed circuit board supporting power and a wireless transmitter; determining a single channel EEG signal using bipolar derivation; seizure identification with alert generation; and electronic medical record storage.

Water-resistant unitary EEG monitoring device housing with exposed electrodes

An electroencephalogram (EEG) monitoring device comprising a water-resistant unitary housing, a first electrode supported by a first electrode printed circuit board and a second electrode supported by a second electrode printed circuit board, the first and second electrodes being configured to be attached to a scalp of a patient and sense EEG signals, and wherein the first electrode printed circuit board, the second electrode printed circuit board, and the printed circuit board are enclosed in the water-resistant unitary housing and surfaces of the first and second electrodes are exposed on a surface of the water-resistant unitary housing.

Wireless transmission from printed circuit board with protruding electrode boards

The device wherein the first and second electrode printed circuit boards are surface mounted to the printed circuit board, are supported by the printed circuit board, and protrude from the printed circuit board, and wherein a printed circuit board supports a power source and a wireless transmitter configured to transmit the EEG signals.

Determining a single channel EEG signal using bipolar derivation and identifying a seizure

A system for electroencephalogram (EEG) monitoring comprising an EEG monitoring device and a non-transitory computer readable medium storing instructions that, when executed by at least one processor, cause the at least one processor to determine a single channel EEG signal from the EEG signals received from the wireless transmitter using bipolar derivation and analyze the single channel EEG signal to identify a seizure.

Remote seizure-responsive alerting and electronic medical record storage

Responsive to identifying the seizure, an alert is generated and transmitted, and the EEG signals are stored as an electronic medical record.

Remote EEG monitoring method with exposed scalp electrodes and wireless transmitting

A method of operating a system for remote electroencephalogram (EEG) monitoring comprising collecting EEG signals with a first electrode supported by a first electrode printed circuit board and a second electrode supported by a second electrode printed circuit board, the first and second electrode printed circuit boards being surface mounted to a printed circuit board and being supported by and protruding from the printed circuit board, surfaces of the first and second electrodes being exposed on a surface of a housing that encloses the first electrode printed circuit board, the second electrode printed circuit board, and the printed circuit board, and the first and second electrodes being configured to be attached to a scalp of a patient, and transmitting the EEG signals with a wireless transmitter supported by the printed circuit board.

Overall, the independent claims define a water-resistant unitary EEG monitoring device with exposed first and second electrodes formed on separate electrode printed circuit boards that protrude from the housing and a printed circuit board that supports power and wireless transmission. The independent system and method claims further require processing of received wireless EEG signals by bipolar derivation to determine a single channel EEG for seizure identification, with responsive alert generation and electronic medical record storage.

Stated Advantages

Enables water-resistant unitary EEG monitoring with electrodes attached to a scalp while transmitting EEG signals wirelessly.

Allows seizure identification by determining a single channel EEG signal using bipolar derivation and analyzing the single channel EEG signal.

Provides seizure-responsive alerting to a remote computing device or base station.

Stores EEG signals as an electronic medical record.

Documented Applications

Remote electroencephalogram (EEG) monitoring with wireless transmission of EEG signals.

Seizure detection by determining a single channel EEG signal using bipolar derivation and analyzing it to identify a seizure.

Alert generation responsive to identifying a seizure, including transmission of an alert to a remote computing device.

Electronic medical record storage of EEG signals for later clinician review.

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