Wireless system for epilepsy monitoring and measurement

Patent metadata

Field	Value
Publication number	US-9326726-B2
Application number	US-201414279882-A
Country	US
Kind code	B2
Filing date	May 16, 2014
Priority date	Aug 1, 2007
Publication date	May 3, 2016
Grant date	May 3, 2016

Abstract

A wireless system for brain monitoring/mapping of neurological-disorder patients includes a plurality of electrodes each configured for surface abutment of brain tissue and main circuitry for placement outside a body of a patient and configured to transmit power at radio frequencies and send and receive data using infrared energy. Remote circuitry is provided for subcutaneous implantation in a head of the patient. The remote circuitry is connected to the plurality of electrodes and includes a multiplexer sampling signals from the plurality of electrodes. The multiplexer outputs electrode signals to an amplifier and A/D converter for transmission to the main circuitry. The remote circuitry is configured to (a) receive transmitted power at radio frequencies from the main circuitry, (b) capture and digitize full-bandwidth EEG signals from each of the electrodes, and (c) send data to and receive data from the main circuitry using infrared energy.

First claim

The invention claimed is:

1. A digital EEG system for signal processing circuitry for brain monitoring/mapping of neurological-disorder patients, comprising:
a plurality of scalp electrodes;
signal processing circuitry connected to the plurality of scalp electrodes, the signal processing circuitry including:

a multiplexer sampling signals from the plurality of scalp electrodes, the multiplexer outputting electrode signals;
an amplifier amplifying electrode signals from the plurality of scalp electrodes; and
an A/D converter converting the electrode signals to digital for transmission to an EEG recording device.

2. The digital EEG system of claim 1 wherein the multiplexer include an array of series L and shunt capacitors at each channel input.

3. The digital EEG system of claim 1 wherein the multiplexer includes a low pass filter at each channel input.

Assignees

• Univ Yale
• Itn Energy Systems Inc

Inventors

• Lanning Bruce
• Nolan James A
• Nuebel Gregory J
• Spencer Dennis D
• Zaveri Hitten P

Classifications

• A61B5/384

  Recording apparatus or displays specially adapted therefor · CPC title

• A61B5/37

  Intracranial electroencephalography [IC-EEG], e.g. electrocorticography [ECoG] · CPC title

• A61B5/0017

  transmitting optical signals · CPC title

• A61B5/4094

  Diagnosing or monitoring seizure diseases, e.g. epilepsy · CPC title

• A61B5/0476

  Human Necessities · mapped topic