Method of arrhythmia detection with detecting mechanism

A method of arrhythmia detection using a sphygomanometer with an arrhythmia detecting mechanism, wherein diagnosis of arrhythmia is done simultaneously with the blood pressure measurement, comprising the steps of detecting arrythmia by comparing the ratio of two consecutive physiological pulse interval times with a predetermined allowable range value, determining an arrythmia if said ratio value is out of said allowable range, setting said two consecutive pulse interval times as one duration time T.sub.1 from a base point of a said pulse appearing or disappearing to the next similar base point of a said pulse appearing or disappearing, taking a succeeding duration of time T.sub.2 in the identical way between each two similar base points, said arrhythmia detecting method being characterized by the steps of simultaneous derivation of arrythmia system input from the Korotkoff or physiological pulse pressure waveforms of the sphygmomanometric portion of the system, electrically forming a first pulse from said physiological pulse detecting;

• calculating two time values (T.sub.1 -t.sub.1) and (T.sub.2 -t.sub.1) by deducting from one pulse interval T.sub.1 and the next pulse interval T.sub.2 respectively the pulse interval t.sub.1 of said first pulse, said time values being made the objects of the pulse interval comparison;
• completing said comparison within the pulse duration time of a second pulse triggered at every second rising of said first pulse width t.sub.1, and clearing the memory of pulse interval comparison within the time duration (t.sub.1 -t.sub.2), i.e., from the rising of said second pulse to the falling of said first pulse.