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Arrangement for analyzing local bioelectric currents in biological tissue complexes

  • US 4,974,602 A
  • Filed: 08/15/1989
  • Issued: 12/04/1990
  • Est. Priority Date: 08/16/1988
  • Status: Expired due to Fees
First Claim
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1. An arrangement for analyzing local bioelectric currents in biological tissue complexes in a patient comprising:

  • a plurality of sensors adapted to be spatially distributed over a region of a patient in which a biological tissue complex to be analyzed is disposed, said sensors generating electrical signals based on measured filed quantities generated by local bioelectrical currents;

    means for recognizing individual signal patterns within said electrical signals and for temporally limiting said signal patterns to form a template for each signal pattern;

    means for storing said templates;

    means for spatially and chronologically correlating said electrical signals, after formation of said templates, with said stored templates to form a space-time function and a correlation signal derived from said space-time function;

    means for deriving a significant threshold for said correlation signal from said electrical signals;

    means for comparing said correlation signal to said threshold and for enabling entry, on the basis of the comparison, of selected ones of the identified signal patterns into a means for chronologically averaging said identified signal patterns;

    means for identifying a localized spatial source within said biological tissue complex from the averaged identified signal patterns; and

    means for superimposing an image identifying the location of said source on a separately generated tomogram of said biological tissue complex.

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