System and method for detection of unstable oxygen saturation
AssigneeNellcor Puritan Bennett LLC
InventorClark Baker
Life of this patent
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Abstract
Methods and systems are described for simplified detection of unstable oxygen saturation of a patient by analysis of statistical variations in blood oxygen. One method for automatic detection of unstable oxygen saturation of a patient using a pulse oximeter comprises receiving at least a single time series input of oxygen saturation values and computing at least two metrics based on statistical properties of the single time series input of the oxygen saturation values.
Claims32
A method for automatic detection of unstable oxygen saturation of a patient using a pulse oximeter, the method comprising:
- receiving at least a single time series input of oxygen saturation values;
- and
- computing at least two metrics based on statistical properties of the single time series input of oxygen saturation values.
A method for automatic detection of unstable oxygen saturation of a patient using a pulse oximeter, the method comprising:
- receiving at least a single time series input of oxygen saturation values;
- computing at least two metrics based on statistical properties of the single time series input of the oxygen saturation values;
- modifying the statistical metrics based on one or more signal quality metrics;
- averaging the statistical metrics;
- determining a relationship between the statistical metrics;
- and
- providing an output if the relationship exceeds a threshold value.
A patient monitoring system for automatically detecting unstable oxygen saturation of a patient, the system comprising:
- a pulse oximeter for measuring at least a single time series input of oxygen saturation values;
- and
- a processor programmed to compute at least two metrics based on statistical properties of the single time series input of oxygen saturation values.
A computer-readable storage medium having a computer-readable program embodied therein for directing operation of a computer system, the computer system including a communications system, a processor, and a memory device, wherein the computer-readable program includes instructions for operating the computer to automatically detect unstable oxygen saturation of a patient in accordance with the following:
- receiving at least a single time series input of oxygen saturation values;
- and
- computing at least two metrics based on statistical properties of the single time series input of the oxygen saturation values.
Dependencies are inferred from the claim text.