Pregnancy monitoring devices, systems, and related methods

• US 10,165,975 B2
• Filed: 11/10/2015
• Issued: 01/01/2019
• Est. Priority Date: 11/10/2015
• Status: Active Grant

• Current Assignee: Elwha LLC (Intellectual Ventures LLC)
• Original Assignee: Elwha LLC (Intellectual Ventures LLC)
• Inventors: Hyde, Roderick A., Kare, Jordin T., Wood, Lowell L.
• Primary Examiner(s): HINDENBURG, MAX F
• Application Number:
  US14/936,828
• Publication Number:
  US 20170127997A1
• Time in Patent Office: 1,148 Days
• Field of Search: 600553
• CPC Class Codes: A61B 2562/046 in a matrix array
• CPC Class Codes: A61B 5/11 Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb for measuring pulse A61B5/02 ;A61B5/1038 takes precedence; motion detection to correct for motion artifacts in physiological signals A61B5/721
• CPC Class Codes: A61B 5/1118 Determining activity level
• CPC Class Codes: A61B 5/4343 Pregnancy and labour monitoring, e.g. for labour onset detection
• CPC Class Codes: A61B 5/4362 Assessing foetal parameters
• CPC Class Codes: A61B 5/486 Bio-feedback A61B5/375 takes precedence
• CPC Class Codes: A61B 5/6804 Garments; Clothes
• CPC Class Codes: A61B 5/721 using a separate sensor to detect motion or using motion information derived from signals other than the physiological signal to be measured
• CPC Class Codes: A61B 5/7214 using signal cancellation, e.g. based on input of two identical physiological sensors spaced apart, or based on two signals derived from the same sensor, for different optical wavelengths
• CPC Class Codes: A61B 5/742 using visual displays A61B5/339 takes precedence
• CPC Class Codes: A61B 5/746 Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms alarms per se G08B

Abstract

Embodiments disclosed herein are directed to devices, systems, and methods for monitoring pregnancy of a female pregnant subject. For example, a pregnancy monitoring system can detect movement or motion of a pregnant subject and/or of the fetus in the pregnant subject. Additionally or alternatively, the pregnancy monitoring system can detect internal and/or external source loads applied to the pregnant subject. In an embodiment, the pregnancy monitoring system can compare and/or correlate two or more loads, one to another (e.g., to produce an output that is in part based on such comparison and that is related to the wellbeing of the pregnant subject and/or of the fetus). For example, the pregnancy monitoring system can include a controller that is configured to determine and compare two or more loads based on signals received from one or more sensors that can be positioned on the pregnant subject.

Claims

1. A system for monitoring a pregnant subject, the system comprising:

one or more sensors configured to generate one or more signals related to an internal source load and an external source load received by the pregnant subject; and

a controller including control electrical circuitry operably coupled to the one or more sensors and configured to receive the one or more signals therefrom, the control electrical circuitry configured to;

perform a comparison of the internal source load to the external source load; and

generate an output related to the comparison of the internal source load to the external source load at least partially based on the one or more signals received from the one or more sensors.

2. The system of claim 1, wherein at least one signal of the one or more signals related to the internal source load is generated at a different time from at least one signal of the one or more signals related to the external source load.

3. The system of claim 1, wherein the output from the controller is related to one or more of a position of the fetus in the pregnant subject, motion of the fetus, or an orientation of the fetus in the pregnant subject.

4. The system of claim 3, wherein the controller includes memory configured to store data that is generated at least partially from the control electrical circuitry and that is related to one or more of the position of the fetus in the pregnant subject, the motion of the fetus, or the orientation of the fetus.

5. The system of claim 1, wherein the control electrical circuitry of the controller is configured to receive information related to the external source load.

6. The system of claim 5, wherein the control electrical circuitry of the controller is configured to distinguish the external source load from the internal source load.

7. The system of claim 6, wherein:

the one or more sensors include a first sensor positionable at a first distance relative to an outer surface of skin of the pregnant subject and a second sensor positionable at a second distance relative to the outer surface of the skin of the pregnant subject that is greater than the first distance; and

the control electrical circuitry of the controller is configured to distinguish the internal source load from the external source load at least partially based on one or more of a difference in time between the respective sensing signals received from the first sensor and the second sensor or a difference in strength between the respective sensing signals received from the first sensor and the second sensor.

8. The system of claim 7, further including an attenuating material positioned between the first sensor and the second sensor.

9. The system of claim 6, wherein:

the one or more sensors include a first sensor positionable at a first location relative to a reference location on the pregnant subject and a second sensor positionable at a second location relative to the reference location on the pregnant subject that is different from the first location; and

the control electrical circuitry of the controller is configured to distinguish between the internal source load and the external source load based at least partially on one or more of a difference in time between the respective sensing signals received from the first sensor and the second sensor or a difference in strength between the respective sensing signals received from the first sensor and the second sensor.

10. The system of claim 1, wherein the received information that is related to the external source load is received from the pregnant subject, and the control electrical circuitry of the controller is configured to compare the received information that is related to the external source load, which is received from the pregnant subject, to the external source load that is determined at least partially based on the one or more signals received from the one or more sensors.

11. The system of claim 1, wherein the control electrical circuitry of the controller is configured to receive information related to one or more of a position of a fetus in the pregnant subject, a motion of the fetus, or an orientation of the fetus.

12. The system of claim 1, wherein the one or more sensors include a first sensor configured to generate one or more first signals related to at least one of the internal source load or the external source load, and a second sensor configured to generate one or more second signals related to one or more of an orientation, a position, or motion of a fetus in the pregnant subject.

13. The system of claim 1, wherein the control electrical circuitry of the controller is configured to correlate the external source load with one or more of a position of a fetus in the pregnant subject, a motion of the fetus, or an orientation of the fetus.

14. The system of claim 13, wherein the control electrical circuitry of the controller is configured to determine a force imparted on at least one portion of the fetus.

15. The system of claim 13, wherein the control electrical circuitry of the controller is configured to determine a proximity between a position of the external source load received by the pregnant subject and a position of a portion of the fetus.

16. The system of claim 13, wherein the control electrical circuitry of the controller is configured to substantially continuously determine one or more of the position of the fetus, motion of the fetus, or the orientation of the fetus.

17. The system of claim 1, wherein the controller includes memory configured to store data related to the one or more signals received from the one or more sensors.

18. The system of claim 17, wherein the data includes one or more of a date, a time, or a magnitude associated with at least one of the one or more signals received from the one or more sensors.

19. The system of claim 1, further including a personal electronic device having a display, wherein the controller is configured to display the output from the controller on the display of the personal electronic device.

20. The system of claim 1, wherein the controller is configured to transmit the output from the controller to an electronic device.

21. The system of claim 20, wherein the output includes one or more recommendations related to one or more of a health of the pregnant subject or a health of a fetus in the pregnant subject.

22. The system of claim 20, wherein the electronic device is configured to display one or more recommendations related to one or more of a health of the pregnant subject or a health of a fetus in the pregnant subject, the one or more recommendations being based at least partially on the output received from the controller at the electronic device.

23. The system of claim 1, further including a garment wearable by the pregnant subject, the garment including at least one of the one or more sensors.

24. The system of claim 1, wherein the one or more sensors include a first sensor configured to emit a first signal detectable by a second sensor, and the second sensor configured to emit a second signal detectable by the first sensor.

25. The system of claim 24, wherein the control electrical circuitry of the controller is configured to determine a position of the first sensor relative to the second sensor at least partially based on one or more of the first signal or the second signal.

26. A wearable system for monitoring a pregnant subject, the wearable system comprising:

one or more wearable elements sized and configured to be worn by the pregnant subject;

one or more sensors configured to generate one or more signals related to an internal source load and an external source load received by the pregnant subject, at least one of the one or more sensors carried by the one or more wearable elements; and

a controller including control electrical circuitry operably coupled to the one or more sensors and configured to receive the one or more signals therefrom, the control electrical circuitry configured to;

perform a comparison of the internal source load to the external source load; and

generate an output related to the comparison of the internal source load to the external source load at least partially based on the one or more signals received from the one or more sensors.

27. The wearable system of claim 26, wherein the one or more wearable elements include fabric sized and configured to at least partially wrap about an abdomen of the pregnant subject.

28. The wearable system of claim 26, wherein at least one of the one or more wearable elements includes an adhesive configured to removably attach the at least one of the one or more wearable elements together with at least of the one or more sensors to the pregnant subject.

29. The wearable system of claim 26, wherein the control electrical circuitry of the controller is configured to distinguish between the internal source load and the external source load.

30. The wearable system of claim 29, wherein:

the one or more sensors include a first sensor positionable at a first distance relative to an outer surface of skin of the pregnant subject and a second sensor positionable at a second distance relative to the outer surface of the skin of the pregnant subject that is greater than the first distance; and

the control electrical circuitry of the controller is configured to distinguish between the internal source load and the external source load based at least partially on a difference in time between the respective sensing signals received from the first sensor and the second sensor or a difference in strength between the respective sensing signals received from the first sensor and the second sensor.

31. The wearable system of claim 29, wherein:

the one or more sensors include a first sensor positionable at a first location relative to a reference location on the pregnant subject and a second sensor a second location relative to the reference location on the pregnant subject that is different from the first location; and

the control electrical circuitry of the controller is configured to distinguish between the internal source load and the external source load based at least partially on a time difference between the respective sensing signals received from the first sensor and the second sensor or a difference in strength between the respective sensing signals received from the first sensor and the second sensor.

32. The wearable system of claim 31, further including an attenuating material positioned between and attached to the first sensor and the second sensor.

33. The wearable system of claim 26, wherein the one or more sensors define a sensor array configured to be distributed about an abdomen of the pregnant subject.

34. The wearable system of claim 26, wherein the one or more sensors include a first sensor configured to detect the external source load received by the pregnant subject, and a second sensor configured to generate one or more signals related to the internal source load resulting from motion of a fetus inside the pregnant subject.

35. The wearable system of claim 26, wherein the one or more signals are related to one or more of a position or an orientation of a fetus inside the pregnant subject.

36. The wearable system of claim 35, wherein the controller includes memory configured to store data related to the one or more signals received from the one or more sensors.

37. The wearable system of claim 36, wherein the data includes one or more of a date, a time, or a magnitude associated with at least one of the one or more signals received from the one or more sensors.

38. The wearable system of claim 26, wherein the control electrical circuitry of the controller is configured to receive input related to the one or more of a position of a fetus in the pregnant subject, an orientation of the fetus, or a size of the fetus, the input being based at least partially on an entry received from a user.

39. The wearable system of claim 26, wherein the controller is configured to generate an alert when one or more of the internal source load or the external source load exceed a threshold load.

40. The wearable system of claim 26, wherein the control electrical circuitry of the controller is configured to correlate one or more of the internal source load with one or more of a position of a fetus in the pregnant subject or an orientation of the fetus.

41. The wearable system of claim 26, further including a personal electronic device having a display, wherein the controller is configured to display the output from the controller on the display of the personal electronic device.

42. The wearable system of claim 26, wherein the controller is configured to transmit the output from the controller to an electronic device, wherein the output includes one or more recommendations related to one or more of a health of the pregnant subject or a health of a fetus in the pregnant subject.

43. The wearable system of claim 26, further including one or more load-sensitive elements configured to generate an alert when one or more of the internal source load or the external source load exceed a threshold load.

44. A method of monitoring a pregnant subject, the method comprising:

at a controller, receiving one or more signals from one or more sensors that detect one or more forces associated with an internal source load and an external source load received by the pregnant subject;

at the controller, determining the internal source load and the external source load based at least partially on the one or more signals received from the one or more sensors;

at the controller, performing a comparison of the internal source load to the external source load; and

generating an output related to the comparison of the external source load to the internal source load.

45. The method of claim 44, further including distinguishing the external source load from the internal source load by processing the one or more signals with the controller.

46. The method of claim 44, wherein:

the one or more sensors include a first sensor positioned at a first distance relative to an outer surface of skin of the pregnant subject and a second sensor positioned at a second distance relative to the outer surface of the skin of the pregnant subject that is greater than the first distance; and

the control electrical circuitry of the controller is configured to distinguish the internal source load from the external source load at least partially based on one or more of a difference in time between the respective sensing signals received from the first sensor and the second sensor or a difference in strength between the respective sensing signals received from the first sensor and the second sensor.