Pulse oximeter and sensor optimized for low saturation
First Claim
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1. A method for measuring blood oxygen saturation, comprising:
- emitting light from a light source of a pulse oximeter sensor;
detecting the light at a detector of the pulse oximeter sensor;
limiting light signals received at the detector from the light source to two or less spectra, wherein the two or less spectra are optimized for an oxygen saturation reading less than 80 percent;
transmitting signals based on the limited light to a pulse oximeter, the signals being useful in determining blood oxygen saturation with the pulse oximeter; and
calculating a blood oxygen saturation value based on the limited light.
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Abstract
Embodiments of the present invention are directed to a system and method for measuring blood oxygen saturation. Specifically, embodiments of the present invention include emitting light having a wavelength spectrum that is optimized for an oxygen saturation reading less than 80 percent, detecting the light, and transmitting signals based on the detected light, the signals being useful in determining blood oxygen saturation with a pulse oximeter.
101 Citations
31 Claims
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1. A method for measuring blood oxygen saturation, comprising:
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emitting light from a light source of a pulse oximeter sensor; detecting the light at a detector of the pulse oximeter sensor; limiting light signals received at the detector from the light source to two or less spectra, wherein the two or less spectra are optimized for an oxygen saturation reading less than 80 percent; transmitting signals based on the limited light to a pulse oximeter, the signals being useful in determining blood oxygen saturation with the pulse oximeter; and calculating a blood oxygen saturation value based on the limited light. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A pulse oximeter sensor for measuring blood oxygen saturation, comprising:
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a light emitter configured to emit light; a light detector configured to detect the light and to transmit signals based on the detected light, the signals being useful in determining blood oxygen saturation with a pulse oximeter; and a limiting component configured to limit light signals received at the detector from the light source to two or less spectra, wherein the two or less spectra are optimized for an oxygen saturation reading less than 80 percent. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A method of manufacturing a pulse oximeter sensor for measuring blood oxygen saturation, comprising:
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providing a light emitter configured to emit light; providing a light detector configured to detect the light and to transmit signals based on the detected light, the signals being useful in determining blood oxygen saturation with a pulse oximeter sensor; and disposing a limiting component within the pulse oximeter sensor, the limiting component configured to limit light signals received at the detector from the light source to two or less spectra, wherein the two or less spectra are optimized for an oxygen saturation reading less than 80 percent. - View Dependent Claims (27, 28)
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29. A pulse oximeter system, comprising:
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a pulse oximeter configured to read signal data and derive patient physiological data from the signal data; and a sensor comprising; a light emitter configured to emit light; a light detector configured to detect the light and to transmit signals based on the detected light, the signals comprising the signal data being useful in determining blood oxygen saturation with the pulse oximeter; and a limiting component configured to limit light signals received at the detector from the light source to two or less spectra, wherein the two or less spectra are optimized for an oxygen saturation reading less than 80 percent. - View Dependent Claims (30, 31)
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Specification