Tissue profile wellness monitor
First Claim
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1. A physiological monitoring method comprising:
- emitting light of eight or more wavelengths into tissue of a patient, the eight or more wavelengths responsive to pulsatile blood flowing within the tissue of the patient;
detecting the emitted light after attenuation by the tissue of the patient;
continuously generating a tissue profile responsive to absorption of the emitted wavelengths using a processor in real time,continuously analyzing the tissue profile using the processor to determine if a change in the shape of the tissue profile has occurred;
indicating a wellness condition of the patient based on the analysis of the tissue profile.
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Abstract
A tissue profile wellness monitor measures a physiological parameter, generates a tissue profile, defines limits and indicates when the tissue profile exceeds the defined limits. The physiological parameter is responsive to multiple wavelengths of optical radiation after attenuation by constituents of pulsatile blood flowing within a tissue site. The tissue profile is responsive to the physiological parameter. The limits are defined for at least a portion of the tissue profile.
860 Citations
16 Claims
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1. A physiological monitoring method comprising:
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emitting light of eight or more wavelengths into tissue of a patient, the eight or more wavelengths responsive to pulsatile blood flowing within the tissue of the patient; detecting the emitted light after attenuation by the tissue of the patient; continuously generating a tissue profile responsive to absorption of the emitted wavelengths using a processor in real time, continuously analyzing the tissue profile using the processor to determine if a change in the shape of the tissue profile has occurred; indicating a wellness condition of the patient based on the analysis of the tissue profile. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A physiological monitoring method comprising:
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emitting optical radiation of three or more wavelengths into the tissue of a patient; detecting the optical radiation after attenuation of the light by the tissue of the patient; continuously measuring a normalized plethysmograph (NP) at each of multiple wavelengths of the optical radiation so as to generate a tissue profile, the NP being responsive to attenuation of the optical radiation by constituents of pulsatile blood flowing within a tissue site illuminated by the optical radiation; analyzing the tissue profile to determine if the shape of the tissue profile indicates an abnormal condition of the patient; and outputting at least one of a display, alarm, diagnostic and control according to the testing results. - View Dependent Claims (9, 10, 11, 12)
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13. A physiological monitoring method comprising:
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emitting three or more wavelengths of light into a tissue site of a patient including pulsating blood; detecting the light after attenuation by the tissue site; measuring a physiological parameter responsive to multiple wavelengths of optical radiation after attenuation by constituents of pulsatile blood flowing within a tissue site; continuously generating a tissue profile in response to the physiological parameter using a processor; defining shape change limits for at least a portion of the tissue profile; and indicating when the tissue profile changes shape and exceeds the defined limits. - View Dependent Claims (14, 15, 16)
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Specification