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US 12,178,585 B2Granted
Multi sensor and method
AssigneePertech Industries, Inc.
InventorEnrico Negrello
Life of this patent
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Abstract
A method including the steps of receiving a first signal sensed from a patient, receiving a first physiological signal sensed from the patient, and processing the first signal based at least on the first physiological signal to obtain a second signal that is a measurement of the patient's Heart Rhythm.
Claims8
A method of measurement of a patient's heart rhythm as a voltage verses time, comprising:
- positioning an apparatus on a patient proximate a chest of the patient, the apparatus comprising a first sensor that is an electrode or an oximeter, and a second sensor being a phonocardiogram microphone;
- first sensing a first raw signal from the patient using the first sensor;
- preprocessing the first raw signal, the preprocessing including the steps of:
- amplifying the first raw signal;
- applying a low band filter to the first raw signal;
- converting the first raw signal from a first analog signal to a first digital signal;
- sampling the first digital signal to obtain a first signal;
- second sensing a second raw signal from the patient using the second sensor, the first sensing and the second sensing being at the same time;
- preprocessing the second raw signal, the preprocessing including the steps of:
- amplifying the second raw signal;
- applying another low band filter to the second raw signal;
- converting the second raw signal from a second raw analog signal to a second raw digital signal;
- sampling the second raw digital signal;
- applying a Fast Fourier Transform to the samples of the second raw digital signal to determine a frequency behavior over time as a first physiological signal;
- transmitting the first signal and the first physiological signal to a processor;
- storing the first signal and the first physiological signal in a memory of the processor;
- processing, using the processor, the first signal based at least on the first physiological signal to obtain a second signal that is a measurement of the patient's heart rhythm;
- wherein the processing comprises:
- applying a second adaptive filter to the first physiological signal followed by a first transformation algorithm to obtain a desired first signal;
- inputting the desired first signal into a first adaptive filter;
- inputting the first signal into the first adaptive filter;
- applying the first adaptive filter to the first signal and the first desired signal to determine the second signal that is the patient's heart rhythm,
- storing the measurement of the patient's heart rhythm in the memory;
- displaying on a mobile device the measurement of the patient's heart rhythm.
21 more elements
Dependencies are inferred from the claim text.