Simultaneous measurement of pulse and regional blood oxygen saturation
First Claim
1. A method for calculating blood oxygen saturations, the method comprising:
- emitting a plurality of light signals from light emitters;
receiving a first light signal at a first light detector, wherein the received first light signal comprises a first set of impulses corresponding to a first wavelength of emitted light emitted from the light emitters and a second set of impulses corresponding to a second wavelength of light emitted from the light emitters;
receiving a second light signal at a second light detector;
calculating a pulse blood oxygen saturation based on a first subset of the first and second sets of impulses of the received first light signal, using a processor, wherein the calculation of pulse blood oxygen saturation is not based on a second subset of the first and second sets of impulses; and
calculating a regional blood oxygen saturation based on the second subset of the first and second sets of impulses and the received second light signal, using a processor, wherein the calculating a pulse blood oxygen saturation and the calculating a regional blood oxygen saturation are done substantially simultaneously.
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Abstract
Methods and systems are provided that allow for the simultaneous calculation of pulse and regional blood oxygen saturation. An oximeter system that includes a sensor with a plurality of emitters and detectors may be used to calculate a pulse and/or regional blood oxygen saturation. A plurality of light signals may be emitted from light emitters. A first light signal may be received at a first light detector and a second light signal may be received at a second light detector. A pulse and/or regional blood oxygen saturation value may be calculated based on the received first and/or second light signals. The pulse and regional blood oxygen saturation values may be calculated substantially simultaneously. The calculated pulse and regional blood oxygen saturation values as well as other blood oxygen saturation values may be displayed simultaneously in a preconfigured portion of a display.
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Citations
20 Claims
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1. A method for calculating blood oxygen saturations, the method comprising:
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emitting a plurality of light signals from light emitters; receiving a first light signal at a first light detector, wherein the received first light signal comprises a first set of impulses corresponding to a first wavelength of emitted light emitted from the light emitters and a second set of impulses corresponding to a second wavelength of light emitted from the light emitters; receiving a second light signal at a second light detector; calculating a pulse blood oxygen saturation based on a first subset of the first and second sets of impulses of the received first light signal, using a processor, wherein the calculation of pulse blood oxygen saturation is not based on a second subset of the first and second sets of impulses; and calculating a regional blood oxygen saturation based on the second subset of the first and second sets of impulses and the received second light signal, using a processor, wherein the calculating a pulse blood oxygen saturation and the calculating a regional blood oxygen saturation are done substantially simultaneously. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for calculating blood oxygen saturations, the system comprising:
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light emitters capable of emitting a plurality of light signals; a first light detector capable of receiving a first light signal, wherein the received first light signal comprises a first set of impulses corresponding to a first wavelength of emitted light emitted from the light emitters and a second set of impulses corresponding to a second wavelength of light emitted from the light emitters; a second light detector capable of receiving a second light signal; a processor capable of calculating a pulse blood oxygen saturation based on a first subset of the first and second sets of impulses of the received first light signal, wherein the calculation of pulse blood oxygen saturation is not based on a second subset of the first and second sets of impulses; and a processor capable of calculating a regional blood oxygen saturation based on the second subset of the first and second sets of impulses and the received second light signal, wherein the processor is capable of calculating the pulse blood oxygen saturation and calculating the regional blood oxygen saturation substantially simultaneously. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification