Abstract: Long-term blood pressure measuring apparatus, particularly adapted for ambulatory blood pressure monitoring where the subject can be engaged in normal activities while blood pressure is being measured and to be worn by the subject whose blood pressure is to be measured uses an inflatable cuff, a pump for inflating the cuff, valves for controlling the pressure in the cuff, sensors for the cuff pressure and for auscultatory (Korotkoff) sounds from the subject, a recorder for recording the sounds and blood pressure measurement cycle control circuits.

Abstract: A system is described for displaying several lines of electrocardiographic (ECG) signals on a cathode ray tube screen for observation, analysis and selection of those portions of the signals which indicate abnormalities of heart rhythm and cardiac events of interest to the diagnostician or trained observer. The ECG signals may be recorded at real time but are inputted to the system at much greater than real time. The system provides the display of the signal portions which were recorded consecutively, each on a separate vertically displayed line. In the system the greater than real time ECG signals are converted into consecutive bytes of data and transferred through a memory, which may be part of a computer, to a bulk storage unit such as a magnetic disc unit. The data from the disc is transferred to the display by way of the memory such that the display is continuously refreshed while the lines of ECG signals are under observation.