Noninvasive determination of cardiac health and other functional states and trends for human physiological systems

Patent metadata

Field	Value
Publication number	US-10064582-B2
Application number	US-201514599954-A
Country	US
Kind code	B2
Filing date	Jan 19, 2015
Priority date	Jan 19, 2015
Publication date	Sep 4, 2018
Grant date	Sep 4, 2018

Abstract

This document describes assessment of human physiological systems. Various noninvasive sensors can be used to detect vitals and other parameters and combined with mathematical models to assess the functional state of physiological systems. Conventional techniques can use invasive sensors to monitor cardiac pressures and volumes, along with pressure transit to quantify cardiovascular health. While known to be effective these invasive techniques often require surgery and are resource intensive limiting their use to cases where the risks and costs are of clear immediate benefit. In contrast, noninvasive health monitors present little if any risk and are easy to use. Further, the techniques described herein can determine trends in a person's cardiovascular health. With these trends, a person can know if the effort they expend to improve heart health actually makes a difference. Further, negative trends can be found that can spur people to improve their health or get medical attention.

First claim

What is claimed is:

1. A method for health monitoring without interrupting a person's daily routine, the method comprising:
executing a manager on a processor of a computing device to perform operations including: receiving, from multiple noninvasive health monitors configured to measure a physiological system of the person using a plurality of different modalities without interrupting the person's daily routine, sensor data for the person that corresponds the plurality of different modalities, the different modalities sensing different measurable conditions;
determining a functional state of the physiological system of the person, the functional state comprising a cardiac pressure-volume loop for a cardiovascular system of the person, the functional state determined based on the sensor data received and by: correlating the sensor data of two or more particular modalities of the plurality of different modalities that are associated with the cardiac pressure-volume loop, the correlating including correlating the sensor data of a first of the two or more particular modalities with the sensor data of at least a second of the two or more particular modalities based on times the sensor data of the first and at least second particular modalities are recorded;
and combining the correlated sensor data of the first and at least second particular modalities to ascertain a measure indicative of the functional state; recording the functional state;
and determining, based on the functional state and previously recorded functional states for the physiological system of the person, a health trend for the physiological system of the person, the determined health trend being presentable via a user interface on a display of a computing device.

2. The method as described in claim 1 , further comprising communicating at least one of the functional state or the health trend for the physiological system of the person to a medical professional associated with the person.

3. The method as described in claim 1 , wherein the sensor data includes data from at least two of the multiple noninvasive health monitors and for a same time.

4. The method as described in claim 3 , wherein the determining includes at least one of correlating or aggregating the sensor data of the first particular modality with the sensor data of the at least second particular modality that correspond to the same time.

5. The method as described in claim 1 , wherein the plurality of different modalities includes two or more of reflected light, sound waves, electromagnetic sensing, radar, or fluid mechanics.

6. The method as described claim 1 , wherein two or more of the multiple noninvasive health monitors actively sense the person's health.

7. The method as described in claim 6 , wherein the person is not required to explicitly operate or actively interact with the two or more of the multiple noninvasive health monitors.

8. The method as described in claim 1 , further comprising determining an additional functional state of a different physiological system of the person comprising a nervous, endocrine, muscular, skeletal, or integumentary system.

9. The method as described in claim 1 , wherein the correlating correlates sensor data from one of the multiple noninvasive health monitors with sensor data from another of the multiple noninvasive health monitors based on sub-second precision relating to an element of the physiological system.

10. The method as described in claim 1 , further comprising, responsive to the functional state exceeding a safety threshold, alerting the person or a medical professional associated with the person.

11. The method as described in claim 1 , further comprising presenting the health trend for the person's physiological system on a mobile computing device associated with the person.

12. A method for health monitoring without interrupting a person's daily routine, the method comprising:
executing a manager on a processor of a computing device to perform operations comprising:
determining, based on first noninvasive sensor data sensed over a first time period, a first cardiac pressure-volume loop for a person, the first noninvasive sensor data being sensed using two or more particular modalities of a plurality of different modalities that sense different measurable conditions, the particular modalities being associated with pressure-volume loop determinations, and the determining includes combining the first noninvasive sensor data of a first of the particular modalities with the first noninvasive sensor data of at least a second of the particular modalities to ascertain the first cardiac pressure-volume loop for the person;
determining, based on second noninvasive sensor data sensed over a second time period, a second cardiac pressure-volume loop for the person, the second noninvasive sensor data being sensed using the particular modalities, and the determining includes combining the second noninvasive sensor data of the first particular modality with the second noninvasive sensor data of the at least second particular modality to ascertain the second cardiac pressure-volume loop for the person;
comparing the first and second cardiac pressure-volume loops to determine a change between the first and second cardiac pressure-volume loops for the person; and
determining, based on the change between the first and second cardiac pressure-volume loops for the person, a health trend specified as a cardiovascular health improvement or decline, the health trend being presentable via a user interface on a display of a computing device.

13. The method of claim 12 , wherein the first and second cardiac pressure-volume loops are not precise but the change accurately reflects the cardiovascular health improvement or decline.

14. The method of claim 12 , wherein the first and second noninvasive sensor data are sensed through a mat on which the person stands.

15. The method of claim 12 , wherein the first and second noninvasive sensor data are sensed through measurement of skin color variations indicating differential blood volume.

16. The method of claim 12 , wherein the first and second noninvasive sensor data are sensed through a radar-field device.

17. A computing device comprising:
a display;
a transceiver operable to receive sensor data from a plurality of noninvasive health-monitoring devices;
one or more computer processors; and
one or more non-transitory computer-readable storage media having instructions stored thereon that, responsive to execution by the one or more computer processors, implements a manager configured to:
receive, through the transceiver and from multiple noninvasive health-monitoring devices, sensor data for a physiological system of a person sensed via a plurality of different modalities that sense different measurable conditions, and having associated times at which each of the sensor data were sensed;
determine, based on the sensor data received and the associated times at which each of the sensor data were sensed, a functional state of the physiological system of the person, the functional state comprising a cardiac pressure-volume loop determined through:
correlation of the sensor data for two or more particular modalities of the plurality of different modalities that are associated with the cardiac pressure-volume loop, the correlation including correlating a first of the two or more particular modalities with at least a second of the two or more particular modalities based on the associated times; and
combination of the correlated sensor data of the first and the at least second p

Assignees

• Google Inc
• Google Llc

Inventors

• Rogers Jeffrey L

Classifications

• G16H40/67

  for remote operation · CPC title

• A61B8/483

  involving the acquisition of a 3D volume of data · CPC title

• A61B5/7275

  Determining trends in physiological measurement data; Predicting development of a medical condition based on physiological measurements, e.g. determining a risk factor · CPC title

• A61B5/4842

  Monitoring progression or stage of a disease · CPC title

• A61B2562/0233

  Special features of optical sensors or probes classified in A61B5/00 · CPC title