Patents Assigned to Quinton Cardiology, Inc.
  • Methods for quantifying the morphology and amplitude of cardiac action potential alternans
    Patent number: 7167745
    Abstract: Methods and apparatus for determining T-wave alternan signatures (i.e., morphology and polarity) derived from a physiologic signal representative of a subject's heart activity; assessing changes in the myocardium Action Potential (“AP”) through analysis of the alternan signature derived from a physiologic signal representative of a subject's heart activity; and/or assessing spatial disassociation of alternan characteristics that are likely associated with the initiation of re-entrant arrhythmias.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: January 23, 2007
    Assignee: Quinton Cardiology, Inc.
    Inventors: David Milton Hadley, Mustafa Hikmet Sagiroglu