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Computer-implemented electrocardiographic data processor with time stamp correlation

  • US 8,626,277 B2
  • Filed: 08/06/2012
  • Issued: 01/07/2014
  • Est. Priority Date: 10/08/2010
  • Status: Active Grant
First Claim
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1. A computer-implemented electrocardiographic data processor with time stamp correlation, comprising:

  • a download station, comprising;

    a data interface configured to physically interface to an electrocardiographic monitoring circuit, the monitoring circuit comprises a persistent memory, an onboard power supply, and an encoder powered by the onboard power supply and configured to determine a differential voltage between a current discrete digital voltage value and a prior discrete digital voltage value, the differential voltage is stored into the persistent memory in a digitized data stream format representative of analog cardiac action potential signals; and

    a data retrieval module configured to retrieve digitally-encoded voltage values and time stamps recorded by the monitoring circuit from the persistent memory of the monitoring circuit via the data interface;

    a post-processing application configured to execute on a computer that is interfaced with the download station, comprising;

    an onboard digital data store comprising a set of enumerated output voltages and enumerated ranges of voltage differences that each correspond to lower and upper bounds of voltage;

    a comparator configured to compare each retrieved voltage value to the lower and upper bounds of voltage and to identify the enumerated range within which each retrieved voltage value falls; and

    a decoder configured to select the output voltages corresponding to the identified enumerated ranges as a reproduction of the analog cardiac action potential signals; and

    a display configured to depict the reproduced analog cardiac action potential signals and to correlate the time stamps to temporal points within the reproduced analog cardiac action potential signals.

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