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CARDIAC PACER MONITORING MEANS WITH RATE AND PULSE DISCRIMINATION

  • US 3,780,727 A
  • Filed: 02/25/1972
  • Issued: 12/25/1973
  • Est. Priority Date: 02/25/1972
  • Status: Expired due to Term
First Claim
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1. Apparatus for use with pacer patients, for deriving pacer signals from electrocardiac signals comprising:

  • means for deriving and processing the electrocardiac signals to produce a filtered, absolute output signal;

    means for integrating said output signal;

    comparator means for comparing signal levels of the output of said integrating means with said processing means output, to produce a comparator output signal representative of pacer activity when the processing means output signal attains a predetermined relationship with respect to the integrating means output signal;

    pulse width discriminator means for rejecting comparator output signals lying outside a preselected pulse width range; and

    repetition rate discriminator means for rejecting comparator output signals which lie outside a preselected range of pulse rates.

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