METHOD FOR SPECTROPHOTOMETRIC BLOOD OXYGENATION MONITORING
First Claim
1. A method for non-invasively determining a blood oxygenation level within a subject'"'"'s tissue, comprising the steps of:
- providing a spectrophotometric sensor operable to transmit light into the subject'"'"'s tissue, and to sense the light;
inputting into the sensor at least one of the subject'"'"'s age, weight, brain development, and head size;
spectrophotometrically sensing the subject'"'"'s tissue along a plurality of wavelengths using the sensor, and producing signal data from sensing the subject'"'"'s tissue; and
processing the signal data utilizing the at least one of the subject'"'"'s age, weight, brain development, and head size, to determine the blood oxygen saturation level within the subject'"'"'s tissue using a difference in attenuation between the wavelengths.
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Accused Products
Abstract
A method and apparatus for non-invasively determining a blood oxygenation level within a subject'"'"'s tissue is provided. The method includes the steps of: a) providing a spectrophotometric sensor operable to transmit light into the subject'"'"'s tissue, and to sense the light; b) inputting into the sensor at least one of the subject'"'"'s age, weight, brain development, and head size; c) spectrophotometrically sensing the subject'"'"'s tissue along a plurality of wavelengths using the sensor, and producing signal data from sensing the subject'"'"'s tissue; and d) processing the signal data utilizing the at least one of the subject'"'"'s age, weight, brain development, and head size, to determine the blood oxygen saturation level within the subject'"'"'s tissue using a difference in attenuation between the wavelengths.
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Citations
12 Claims
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1. A method for non-invasively determining a blood oxygenation level within a subject'"'"'s tissue, comprising the steps of:
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providing a spectrophotometric sensor operable to transmit light into the subject'"'"'s tissue, and to sense the light; inputting into the sensor at least one of the subject'"'"'s age, weight, brain development, and head size; spectrophotometrically sensing the subject'"'"'s tissue along a plurality of wavelengths using the sensor, and producing signal data from sensing the subject'"'"'s tissue; and processing the signal data utilizing the at least one of the subject'"'"'s age, weight, brain development, and head size, to determine the blood oxygen saturation level within the subject'"'"'s tissue using a difference in attenuation between the wavelengths. - View Dependent Claims (2, 3, 4)
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5. An apparatus for non-invasively determining a blood oxygenation level within a subject'"'"'s tissue, comprising:
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a sensor having one or more transducer portions and a processor portion; wherein each of the one or more transducer portions includes at least one light source and at least one light detector, and the light source is operable to transmit light along a plurality of wavelengths into the subject'"'"'s tissue, and the light detector is operable to detect light along the wavelengths traveling through the subject'"'"'s tissue, and each of the transducer portions is operable to produce signal data representative of the light sensed within the subject'"'"'s tissue; and wherein the processor portion is operably connected to the one or more transducer portions, and is adapted to receive input of at least one of the subject'"'"'s age, weight, brain development, and head size, and the processor portion is adapted to process the signal data utilizing at least one of the subject'"'"'s age, weight, brain development, and head size, to determine the blood oxygen saturation level within the subject'"'"'s tissue using a difference in attenuation between the wavelengths. - View Dependent Claims (6, 7, 8, 9)
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10. A method for non-invasively determining a blood oxygenation level within a subject'"'"'s tissue, comprising the steps of:
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providing a spectrophotometric sensor having one or more transducer portions and a processor portion, which transducer portions are operable to transmit light into the subject'"'"'s tissue and sense light passing through the subject'"'"'s tissue, and at least one of which transducer portions includes a housing having a lengthwise extending centerline and a deflection sensor adapted to sense flexure of the housing relative to the lengthwise extending centerline; spectrophotometrically sensing the subject'"'"'s tissue along a plurality of wavelengths using the transducer portions, and producing signal data from sensing the subject'"'"'s tissue; and processing the signal data, including using input from the deflection sensor to determine flexure of the at least one transducer portion, to determine the blood oxygen saturation level within the subject'"'"'s tissue. - View Dependent Claims (11, 12)
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Specification