TISSUE PROFILE WELLNESS MONITOR
3 Assignments
0 Petitions
Accused Products
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.
-
Citations
16 Claims
-
1. (canceled)
-
2. A physiological monitoring method comprising:
-
receiving, from a sensor comprising a light source that emits light into a tissue site of a patient and a detector that detects a plurality of wavelengths of the emitted light after attenuation by the tissue site, a signal indicative of the detected light at each of the plurality of wavelengths; determining, at each of the plurality of wavelengths and based on the signal, normalized plethysmographs (NPs); normalizing each of the determined NPs based on a reference wavelength; determining a tissue profile curve based on the normalized NPs at the plurality of wavelengths; analyzing a shape of the tissue profile curve relative to a predefined boundary curve to determine patient wellness; and outputting an indication in response to determining the shape of the tissue profile curve exceeds the predefined boundary curve. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9)
-
-
10. A physiological monitoring method comprising:
-
receiving, from a sensor comprising a light source that emits light into a tissue site of a patient and a detector that detects a plurality of wavelengths of the emitted light after attenuation by the tissue site, a signal indicative of the detected light at each of the plurality of wavelengths; determining, at each of the plurality of wavelengths and based on the signal, normalized plethysmographs (NPs); normalizing each of the determined NPs based on a reference wavelength; determining a tissue profile curve indicative of a relationship among the normalized NPs at the plurality of wavelengths; evaluating a trend in movement of the tissue profile curve relative to a predetermined trend limit to determine patient wellness; and outputting an indication in response to determining the trend in movement of the tissue profile curve exceeds the predetermined trend limit. - View Dependent Claims (11, 12, 13, 14, 15, 16)
-
Specification