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Method and apparatus for detecting epileptic seizures

  • US 5,349,962 A
  • Filed: 11/30/1993
  • Issued: 09/27/1994
  • Est. Priority Date: 11/30/1993
  • Status: Expired due to Term
First Claim
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1. A method of detecting an epileptic seizure in a person comprising the steps of:

  • (a) monitoring the amount of brain activity of said person to produce a brain activity signal and monitoring the amount of motor activity of said person to produce a motor activity signal;

    (b) sampling said brain activity signal at a sampling frequency to produce a brain activity signal amplitude and sampling said motor activity signal at said sampling frequency to produce a motor activity signal amplitude;

    (c) incrementing a brain activity counter when said brain activity signal amplitude is within a predetermined brain window and decrementing said brain activity counter when said brain activity signal is without said predetermined brain window;

    (d) incrementing a motor activity counter when said motor activity signal amplitude is within a predetermined motor window and decrementing said motor activity counter when said motor activity signal is without said predetermined motor window; and

    (e) indicating that an epileptic seizure is occurring when said brain activity counter is above a brain threshold and said motor activity counter is above a motor threshold.

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