Method, apparatus and computer program for determining a blood pressure value
AssigneeCsem Centre Suisse D'Electronique Et De Microtechnique SA—Recherche Et DéVeloppement
InventorsMartin Proença, Josep Sola i Caros, Matthieu Lemay, Christophe Verjus
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Abstract
Method for determining a blood pressure value including the steps of: providing a pulsatility signal, determining a time-related feature and a normalized amplitude-related feature on the basis of the pulsatility signal; and calculating a blood pressure value on the basis of a blood pressure function depending on the time-related feature, the normalized amplitude-related feature and function parameters.
Claims21
Method for determining a blood pressure value comprising the steps of:
- providing a pulsatility signal of a user;
- determining a first feature and a second feature on the basis of the pulsatility signal;
- calculating a blood pressure value on the basis of a blood pressure function depending on the first feature, the second feature and function parameters;
- the first feature being a time-related feature comprising a time duration within a pulse, and the second feature being a normalized amplitude-related feature, wherein the calculating does not use a non-normalized amplitude-related feature.
Computer program configured to perform a method when carried out on a processor, the method comprising
- providing a pulsatility signal of a user;
- determining a time-related feature comprising a time duration within a pulse and a normalized amplitude-related feature, on the basis of the pulsatility signal;
- calculating a blood pressure value on the basis of a blood pressure function depending on the time-related feature, the normalized amplitude-related feature and function parameters;
- wherein the calculating does not use a non-normalized amplitude-related feature.
Apparatus for determining a blood pressure value comprising:
- a pulsatility signal section for providing a pulsatility signal of a user;
- a first feature calculation section for calculating a first feature on the basis of the pulsatility signal;
- a second feature calculation section for calculating a second feature on the basis of the pulsatility signal;
- a blood pressure section for calculating a blood pressure value on the basis of a function depending on the first feature, the second feature and function parameters;
- the first feature being a time-related feature comprising a time duration within a pulse, and the second feature is a normalized amplitude-related feature, wherein the blood pressure section does not use a non-normalized amplitude-related feature for calculating the blood pressure value.
Dependencies are inferred from the claim text.