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US 6,005,658 AGranted
Intermittent measuring of arterial oxygen saturation of hemoglobin
AssigneeHewlett-Packard Company
InventorsMichael Kaluza, Michael Blank
Life of this patent
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AssigneeHewlett-Packard Company
InventorsMichael Kaluza, Michael Blank
Estimating the term…
Described is a method and a system for detecting the arterial oxygen saturation of hemoglobin (also called blood oxygenation, SpO2 or SaO2 measuring), comprising a measuring device for performing a blood oxygenation measurement and a controller unit. The measuring device is controllable by the controller unit so that the blood oxygenation measurement can be performed non-continuously. In a first step the measuring device is powered on, in a second step the blood oxygenation measurement is performed, and in a third step the measuring device or parts thereof are powered down, whereby the three steps are repeatable periodically. This provides SpO2 measurement applicable in telemetric or handhold instruments. The system is preferably used in telemetric or handhold instruments.
A system for detecting blood oxygenation, comprising a measuring device for performing a blood oxygenation measurement and a controller unit, characterized in that the measuring device is controlled by the controller unit, said controller unit responsive to a measured value from said measuring device reaching a threshold value to disable operation of said measuring device and to re-enable said measuring device upon a further criteria being reached, whereby the blood oxygenation measurement is performable non-continuously.
A method for detecting blood oxygenation, through use of a measuring device for performing a blood oxygenation measurement and a controller unit, said method comprising the steps of:
The method of claim 12, wherein step a) comprises a first step of powering on a measuring device for performing a blood oxygenation measurement, a second step of performing the blood oxygenation measurement, and step b) comprises a third step of powering down the measuring device or parts thereof, whereby the three steps are repeatable periodically.
The method of claim 12, wherein the time between successive measuring intervals is adapted to the time duration of a respective measuring interval, an indicated blood oxygenation value, or to a confidence value of the indicated blood oxygenation value.
The method of claim 13, further comprising prior to the third step a step of statistically analyzing the measured blood oxygenation values measured during each measuring interval.
The method of claim 13, further comprising a step prior to the third step of indicating a blood oxygenation value representative for a measured time interval.
The method of claim 13, wherein the second step comprises a step of predicting the stability of measured blood oxygenation values by
A method for detecting blood oxygenation, characterized in that the measuring of the blood oxygenation is performed non-continuously.
Dependencies are inferred from the claim text.