A software code was developed in Python. The turning point method was used for ECG QRS detection and the threshold method was used for PPG peak detection.
This program takes the ECG and PPG signals as input and finds Pulse transit time based on which blood pressure is calculated for each heartbeat. Data from patients were acquired using this device and its work was validated. The device was found to be working within the set limits and acceptable accuracy levels.
The data analysis was conducted across varied subjects and vitals like age, height, weight was taken into consideration for NIBP measurements