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System for cardiac status determination

  • US 8,668,649 B2
  • Filed: 10/19/2010
  • Issued: 03/11/2014
  • Est. Priority Date: 02/04/2010
  • Status: Expired due to Fees
First Claim
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1. A system for heart performance characterization and abnormality detection, comprising:

  • an interface configured to receive a set of raw sampled data values representing patient blood pressure occurring during individual heart cycles of plurality of sequential heart cycles;

    a signal processor configured to generate a mathematical distribution directly using the received raw sampled data set and calculate,(a) a first value substantially comprising an average of the raw sampled data set,(b) a second value substantially comprising a magnitude value of said distribution at a first deviation point from the average of the raw sampled data set and(c) a ratio of the first and second values as a representation of blood pressure variation; and

    a comparator configured to compare said ratio with a threshold value to provide a comparison indicator; and

    a patient monitor configured to, in response to said comparison indicator indicating said ratio exceeds the threshold value, generate an alert message associated with the threshold.

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