Physiological sensor patch for making complex measurements of bioimpedance

2:

• The system of claim 1, wherein the region of tissue is a chest of the patient.

3:

• The system of claim 1, wherein the resistance and the reactance are used to determine a bioimpedance measurement.

4:

• The system of claim 3, wherein the bioimpedance measurement is a complex bioimpedance measurement that includes a real component and an imaginary component.

5:

• The system of claim 4, wherein the real component is associated with the resistance and the imaginary component is associated with the reactance.

6:

• The system of claim 1, wherein the optical sensor is configured to determine at least one of redness and mottling of the region of tissue.

7:

• The system of claim 1, wherein the light source includes an array of light sources each configured to emit radiation at a different wavelength.

8:

• The system of claim 1, wherein the light source includes a white light source configured to emit a collection of wavelengths throughout visible, infrared, and ultraviolet spectra.

9:

• The system of claim 1, wherein the annular ring includes a notch configured to align with a corresponding alignment marking on the patient.

11:

• The system of claim 10, wherein the region of tissue is a chest of the patient.

12:

• The system of claim 10, wherein the property is a bioimpedance measurement.

13:

• The system of claim 12, wherein a resistance and a reactance are used to determine the bioimpedance measurement.

14:

• The system of claim 13, wherein the bioimpedance measurement is a complex bioimpedance measurement that includes a real component and an imaginary component.

15:

• The system of claim 14, wherein the real component is associated with the resistance and the imaginary component is associated with the reactance.

16:

• The system of claim 10, wherein the optical sensor is configured to determine at least one of redness and mottling of the region of tissue.

17:

• The system of claim 10, wherein the light source includes an array of light sources each configured to emit radiation at a different wavelength.

18:

• The system of claim 10, wherein the light source includes a white light configured to emit a collection of wavelengths throughout visible, infrared, and ultraviolet spectra.

19:

• The system of claim 10, wherein the annular ring includes a notch configured to align with a corresponding alignment marking on the patient.

20:

• The system of claim 10, wherein the processor is further configured to receive a photograph of the region of tissue before the substrate is applied to the region of tissue and combine an evaluation of a degree of swelling based on the photograph with the set of electrical signals and the signal from the optical sensor.