Estimating blood pressure without an inflatable cuff is an active research challenge. Signals such as ECG and PPG can provide information about cardiac activity and pulse arrival, but turning those signals into a reliable blood-pressure estimate is not straightforward.
Timing features can be influenced by physiology, sensor placement, movement, temperature and individual differences. A model that performs well in one setting may not generalise to another person or environment.
Brykel is exploring signal processing and physiological models as part of early research. This work is exploratory. It is not a diagnosis or a clinically validated blood-pressure measurement; careful technical and clinical validation would be required before any future application.
This article is informational and describes development-stage work. It is not medical advice.