System and method for a biosensor monitoring and tracking band
First Claim
1. A health care monitoring system, comprising:
- a health care band configured for attachment to a patient;
a biosensor attached to the health care band, comprising;
a memory configured to store a unique patient identification;
a temperature sensor configured to obtain a temperature of the patient;
a PPG circuit configured to emit light at a plurality of wavelengths directed at skin of the patient and obtain a plurality of spectral responses at each of the plurality of wavelengths of light reflected from the skin, including;
obtaining a first spectral response around a first wavelength responsive to nitric oxide (NO) levels in arterial blood flow;
obtaining a second spectral response around a second wavelength with a low absorption coefficient for nitric oxide (NO) in arterial blood flow;
a processing circuit configured to;
obtain an indicator of a concentration level of NO of the patient using the spectral responses at the plurality of wavelengths by;
isolating a systolic point and a diastolic point in the first spectral response and obtain a value Lλ
1 using a ratio of the systolic point and the diastolic point in the first spectral response;
isolating a systolic point and a diastolic point in the second spectral response and obtain a value Lλ
2 using a ratio of the systolic point and diastolic point in the second spectral response;
obtaining a value Rλ
1,λ
2 from a ratio of the value Lλ
1 and the value Lλ
2, wherein the value Rλ
1,λ
2 is the indicator of the concentration level of NO of the patient;
determine patient vitals using additional spectral responses, wherein the patient vitals include oxygen saturation levels; and
obtain concentration levels of one or more additional substances in arterial blood flow using the spectral responses, including;
obtaining a blood glucose concentration level of the patient from the indicator of the concentration level of NO of the value Rλ
1,λ
2 and a calibration table, wherein the calibration table correlates a plurality of the blood glucose concentration levels with a plurality of the values Rλ
1,λ
2; and
a wireless transceiver configured to transmit the temperature, oxygen saturation levels, the blood glucose concentration level and the unique patient identification.
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Accused Products
Abstract
A health care band operably attaches a biosensor to a patient. The biosensor includes one or more sensors for collecting vitals of a patient and a wireless transmitter that is configured to communicate with an EMR network that stores and maintains an EMR of the patient. The biosensor stores a unique identification associated with the patient'"'"'s EMR such that vitals measured by the biosensor may be transmitted with the patient'"'"'s unique identification for storage in the patient'"'"'s EMR. The sensors in the biosensor may include a thermometer, motion detector/accelerometer, pulse detector and oximeter, etc. In an embodiment, one of the sensors in the biosensor includes a photoplethysmography (PPG) based sensor that may be configured to continuously or periodically measure a patient'"'"'s vitals, such as heart rate, pulse, blood oxygen levels, blood glucose or insulin levels, or other blood analytics in vitro.
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Citations
20 Claims
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1. A health care monitoring system, comprising:
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a health care band configured for attachment to a patient; a biosensor attached to the health care band, comprising; a memory configured to store a unique patient identification; a temperature sensor configured to obtain a temperature of the patient; a PPG circuit configured to emit light at a plurality of wavelengths directed at skin of the patient and obtain a plurality of spectral responses at each of the plurality of wavelengths of light reflected from the skin, including; obtaining a first spectral response around a first wavelength responsive to nitric oxide (NO) levels in arterial blood flow; obtaining a second spectral response around a second wavelength with a low absorption coefficient for nitric oxide (NO) in arterial blood flow; a processing circuit configured to; obtain an indicator of a concentration level of NO of the patient using the spectral responses at the plurality of wavelengths by; isolating a systolic point and a diastolic point in the first spectral response and obtain a value Lλ
1 using a ratio of the systolic point and the diastolic point in the first spectral response;isolating a systolic point and a diastolic point in the second spectral response and obtain a value Lλ
2 using a ratio of the systolic point and diastolic point in the second spectral response;obtaining a value Rλ
1,λ
2 from a ratio of the value Lλ
1 and the value Lλ
2, wherein the value Rλ
1,λ
2 is the indicator of the concentration level of NO of the patient;determine patient vitals using additional spectral responses, wherein the patient vitals include oxygen saturation levels; and obtain concentration levels of one or more additional substances in arterial blood flow using the spectral responses, including; obtaining a blood glucose concentration level of the patient from the indicator of the concentration level of NO of the value Rλ
1,λ
2 and a calibration table, wherein the calibration table correlates a plurality of the blood glucose concentration levels with a plurality of the values Rλ
1,λ
2; anda wireless transceiver configured to transmit the temperature, oxygen saturation levels, the blood glucose concentration level and the unique patient identification. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A biosensor configured for attachment to a patient, comprising:
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a memory configured to store a unique patient identification; a temperature sensor configured to obtain a temperature of the patient; a PPG circuit configured for obtaining a concentration level of nitric oxide (NO) of the patient, wherein the PPG circuit is configured to; generate at least a first spectral response for light reflected around a first wavelength from skin tissue of the patient, wherein the first wavelength is responsive to nitric oxide (NO) levels in arterial blood flow; generate at least a second spectral response for light detected around a second wavelength reflected from the skin tissue of the patient, wherein the second wavelength has a low absorption coefficient for nitric oxide (NO) in arterial blood flow; a processing circuit configured to; process the first and second spectral responses at the first wavelength and the second wavelength; obtain a glucose concentration level in arterial blood flow using the first and second spectral responses by; isolating a systolic point and a diastolic point in the first spectral response and obtain a value Lλ
1 using a ratio of the systolic point and the diastolic point in the first spectral response;isolating a systolic point and a diastolic point in the second spectral response and obtain a value Lλ
2 using a ratio of the systolic point and diastolic point in the second spectral response;obtaining a value Rλ
1,λ
2 from a ratio of the value Lλ
1 and the value Lλ
2, wherein the value Rλ
1,λ
2 indicates a concentration level of NO of the patient; andaccessing a calibration table that includes a plurality of glucose concentration levels correlated with a plurality of concentration levels of NO; and obtaining the glucose concentration level of the patient from the value Rλ
1, λ
2 of the patient and the calibration table; anda wireless transceiver configured to transmit the temperature, glucose concentration level and the unique patient identification. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification