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US 12,605,080 B2Granted
Adaptive pulse wave analysis for blood pressure monitoring
AssigneeSenbiosys
InventorsSerj Haddad, Assim Boukhayma, Antonino Caizzone
Life of this patent
Estimating the term…
Abstract
An adaptive processing of the pulsatility signal can improve the pulse wave analysis (PWA) leading to a better blood pressure estimation. The technique is based on transforming the pulsatility signal so that the fiducial points required for the PWA are well-defined.
Claims15
A system for estimating blood pressure, comprising:
- a photoplethysmography (PPG) sensor for generating input pulsatility signals, each input pulsatility signal having fiducial points;
- and
- a computer system that for each input pulsatility signal of a plurality of input pulsatility signals within a pulsatility window:
- associates a translation mapping function with said input pulsatility signal such that applying the associated translation mapping function to said input pulsatility signal produces a corresponding target pulsatility signal (TPS), such that TPSs generated within the pulsatility window have same fiducial points, and
- applies the associated translation mapping function to the input pulsatility signal to produce the corresponding TPS;
- and
- wherein the computer system generates blood pressure values from the associated translation mapping functions.
4 more elements
A method for estimating blood pressure, comprising:
- receiving input pulsatility signals from a photoplethysmography sensor;
- for each input pulsatility signal within a pulsatility window
- associating a translation mapping function with said input pulsatility signal such that applying the associated translation mapping function to said input pulsatility signal produces a corresponding translated pulsatility signal (TPS), such that TPSs generated within the pulsatility window have the same fiducial points;
- applying the associated translation mapping function to said translation mapping function's associated input pulsatility signals to produce a corresponding translated pulsatility signal (TPS);
- and
- generating blood pressure values by mapping fiducial points in the TPSs within the pulsatility window to blood pressure values.
3 more elements
Dependencies are inferred from the claim text.