Abstract: The present invention relates to the method and apparatus for cuffless measuring of blood pressure value from one limb of a subject. Proposed herein method of measuring blood pressure based on pressure calculation method from pulse wave velocity (PWV) value, which does not require any external device for calibration. PWV is calculated from three main signals: the heart electrical activity signal (ECG) and two photoplethysmographic signals (PPG). The described herein device comprises a set of ECG electrodes, optical and electronic sensors, a microcontroller for signal processing, a power supply unit, user interface means, and a wireless communication unit. The device is designed to monitor blood pressure and can be used for medical purposes or self-monitoring in everyday life.

Abstract: The invention relates to a method, system and program product to obtain R-R-intervals. The described herein wearable device is intended for recording the electrical signal caused by the work of the heart. The signal which is a potential difference is recorded from the one hand, by two dry electrodes relative “reference” electrode. This method allows to record the signal in motion. The accuracy of the R-R-intervals values calculated by using this method is sufficient for HRV analysis. The method comprises the following steps: registration of the ECG signal, amplification, filtering, AD-conversion, R-peak detection and the calculation of R-R-intervals. The resulting array of data is stored in device Flash memory and transmitted via wireless communication to a mobile device. Using the application installed on the mobile device and the R-R-intervals array HRV analysis is performed for example to analyze and assess the emotional state of the user.