Blood pressure monitor
AssigneeEmpire Technology Development LLC
InventorZhen Xiao
Life of this patent
Estimating the term…
Abstract
Technologies are generally described for systems, devices and methods relating to blood pressure monitors. Blood pressure monitors may include a processor and a structure effective to be in communication with the processor. The structure may be effective to apply pressure to an object. Blood pressure monitors may include at least one photoreceptor effective to be in communication with the processor. Photoreceptors may be located in the device so as to be effective to detect light returned from the object while the pressure is applied. Blood pressure monitors may be effective to determine color values of the returned light, determine changes in the color values of the returned light, and determine a blood pressure based on the changes in the color values.
Claims26
A device, comprising:
- a processor;
- a structure effective to be in communication with the processor, wherein the structure is effective to apply pressure to an object;
- and
- at least one photoreceptor effective to be in communication with the processor, wherein the at least one photoreceptor is located in the device so as to be effective to detect light returned from the object while the pressure is applied, and wherein the processor is effective to:
- determine color values of the returned light,
- determine changes in the color values of the returned light, and
- determine a blood pressure based on the changes in the color values.
A method to determine a blood pressure, the method comprising:
- applying, by a structure, a pressure to an object;
- detecting, by at least one photoreceptor, light returned from the object, wherein the returned light is detected while the pressure is applied to the object;
- determining, by a processor, color values of the returned light that has been detected;
- determining, by the processor, changes in the color values of the returned light that has been detected;
- and
- determining, by the processor, the blood pressure based on the changes in the color values.
A method to determine blood pressure, the method comprising:
- depressing skin of a subject, by a structure, at a first pressure;
- detecting, by a photoreceptor, first returned light from the subject, wherein the first returned light is detected while the first pressure is applied to the skin of the subject;
- determining, by a processor, a first color of the first returned light;
- determining, by the processor, a first color change based on a first change in the first color of the first returned light;
- depressing the skin of the subject, by the structure, at a second pressure, wherein the second pressure is different from the first pressure;
- detecting, by the photoreceptor, second returned light from the subject, wherein the second returned light is detected while the second pressure is applied to the skin of the subject;
- determining, by the processor, a second color of the second returned light;
- determining, by the processor, a second color change based on a second change in the second color of the second returned light, wherein the second color change is different from the first color change;
- and
- determining, by the processor, the blood pressure based on the first color change and the second color change.
An apparatus to monitor blood pressure, the apparatus comprising:
- a surface;
- a structure configured to deploy from the surface and effective to apply pressure to skin of a subject in response to the surface being in proximity to the skin;
- a light source coupled to the surface and effective to emit first light toward the skin of the subject;
- and
- at least one photoreceptor coupled to the surface and located on the surface so as to be effective to:
- detect second light returned from the skin of the subject while the pressure is applied;
- and
- generate an output electrical signal that represents the detected second light,
- wherein a color of the second light changes in response to the applied pressure, wherein the at least one photoreceptor is effective to change a characteristic of the output electrical signal in response to the changed color of the second light, and wherein the changed characteristic of the output electrical signal is usable to determine a blood pressure of the subject.
21-23. (canceled)
Dependencies are inferred from the claim text.