Device and method for detection of periodic leg movements

• US 10,335,085 B2
• Filed: 02/12/2015
• Issued: 07/02/2019
• Est. Priority Date: 02/17/2014
• Status: Active Grant

• Current Assignee: Johns Hopkins University
• Original Assignee: Johns Hopkins University
• Inventors: Allen, Richard P.
• Primary Examiner(s): Hindenburg, Max F
• Application Number:
  US15/119,405
• Publication Number:
  US 20170049396A1
• Time in Patent Office: 1,601 Days
• CPC Class Codes: A61B 2562/0219 Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches
• CPC Class Codes: A61B 5/0022 Monitoring a patient using a global network, e.g. telephone networks, internet
• CPC Class Codes: A61B 5/1107 Measuring contraction of parts of the body, e.g. organ, muscle apparatus for measuring work or force in general G01L
• CPC Class Codes: A61B 5/1114 Tracking parts of the body
• CPC Class Codes: A61B 5/1123 Discriminating type of movement, e.g. walking or running A61B5/1116, A61B5/112 take precedence
• CPC Class Codes: A61B 5/4806 Sleep evaluation A61B5/4821 takes precedence; devices for inducing sleep A61M21/02
• CPC Class Codes: A61B 5/4815 Sleep quality
• CPC Class Codes: A61B 5/4857 Indicating the phase of biorhythm clocks or watches with indicators for biological cycles G04B19/264
• CPC Class Codes: A61B 5/6828 Leg
• CPC Class Codes: A61B 5/6829 Foot or ankle
• CPC Class Codes: A61B 5/6831 Straps, bands or harnesses
• CPC Class Codes: A61B 5/6898 Portable consumer electronic devices, e.g. music players, telephones, tablet computers
• CPC Class Codes: A61B 5/742 using visual displays A61B5/339 takes precedence
• CPC Class Codes: G16H 40/67 for remote operation

Abstract

The present invention is directed to a computer application for monitoring and tracking leg and foot movements and positions and a device for facilitating the computer tracking of the leg and foot movements. The application uses an accelerometer, gyroscope or other movement detectors in available devices such as a phone, movement tracker, personal music device, tablet computing device, other similar device or a device specifically designed to detect movements and positions and to track the movement and changes in position of the patient'"'"'s leg and foot. The device can be held onto the patient'"'"'s leg using a band type device that is easy to use and comfortable during sleep or by incorporation into a comfortable wearable band. The application includes a user interface and a backend for use by physicians or other healthcare staff to review and diagnose the patient'"'"'s leg and foot movement patterns.

Claims

1. A method for tracking movements and positions of a leg or foot of a subject, comprising:

launching, by a device, an application for monitoring and tracking the movements and positions of the leg or foot;

activating, by the device and based on launching the application, a movement and position detector to collect data regarding the movements and positions of the leg or foot;

collecting, by the device and based on activating the movement and position detector, the data regarding the movements and positions of the leg or foot,

the data, regarding the movements and positions of the leg or foot, including information associated with a rotational movement;

generating, by the device and based on collecting the data regarding the movements and positions of the leg or foot, a graphical output comprising an indication of one or more particular movements that satisfy a criteria for a movement from a lying down leg position,

the criteria being satisfied based on a threshold activity, duration, and periodicity for time;

providing, by the device, the graphical output; and

transmitting, by the device, the data, regarding the movements and positions of the leg or foot, to a system cloud.

2. The method of claim 1, wherein collecting the data regarding the movements and positions of the leg or foot comprises:

collecting the data regarding the movements and positions of the leg or foot for a predetermined period of time.

3. The method of claim 2, wherein generating the graphical output comprises:

generating the graphical output over the predetermined period of time.

4. The method of claim 1, further comprising:

prompting, based on launching the application, the subject to activate collection of the data regarding the movements and positions of the leg or foot.

5. The method of claim 1, further comprising:

prompting, based on collecting the data regarding the movements and positions of the leg or foot, the subject to terminate the application.

6. The method of claim 1, wherein the movement and position detector is coupled with one of:

a smartphone,

a phablet,

a tablet,

a personal music device,

a fitness tracker, or

a leg band.

7. The method of claim 6, wherein the device is positioned in a mount on a strap configured to be secured to the leg or incorporated into a wearable strap.

8. The method of claim 1, further comprising:

storing the data regarding the movements and positions of the leg or foot in a data structure.

9. The method of claim 1, wherein the movement and position detector comprises at least one of:

an accelerometers, or

a gyroscope.

15. The method of claim 1, where generating the graphical output comprises:

generating graphic and numeric outputs of sleep quality, position, and circadian rhythm.

10. A system for tracking movements and positions of a leg or foot of a subject, comprising:

a memory; and

one or more processors, communicatively coupled to the memory, to;

launch an application for monitoring and tracking the movements and positions of the leg or foot;

activate, based on launching the application, a movement and position detector configured to be placed on a leg of the subject and configured to collect data regarding the movements and positions of the leg or foot;

collect, based on activating the movement and position detector, the data regarding the movements and positions of the leg or the foot,

the data, regarding the movements and positions of the leg or foot, including information associated with a rotational movement;

generate, based on collecting the data regarding the movements and positions of the leg or foot, a graphical output comprising an indication of one or more particular movements that satisfy a criteria for a movement from a lying down leg position,

the criteria being satisfied based on a threshold activity, duration, and periodicity for time;

provide the graphical output; and

transmit the data, regarding the movements and positions of the leg or foot, to a system cloud.

11. The system of claim 10, wherein the one or more processors, when collecting the data regarding the movements and positions of the leg or foot, are to:

collect the data, regarding the movements of the leg or foot, using at least one of an accelerometer or a gyroscope.

12. The system of claim 10, wherein the movement and position detector is coupled with one of:

a smartphone,

a phablet,

a tablet,

a personal music device,

a fitness tracker, or

a leg band.

13. The system of claim 10, where the application comprises a user interface for the subject to interact with the system.

14. The system of claim 10, further comprising:

a wearable strap to hold the movement and position detector on the leg of the subject.

16. The system of claim 10, wherein the one or more processors, when generating the graphical output, are to:

generate the graphical output related to overall sleep quality, position, and circadian rhythm.

17. A non-transitory computer-readable medium storing instructions, the instructions comprising:

one or more instructions that, when executed by one or more processors, cause the one or more processors to;

launch an application for monitoring and tracking movements and positions of a leg or foot of a subject;

activate, based on launching the application, a movement and position detector to collect data regarding the movements and positions of the leg or foot;

collect, based on activating the movement and position detector, the data regarding the movements and positions of the leg or foot,

the data, regarding the movements and positions of the leg or foot, including information associated with a rotational movement;

generate, based on collecting the data regarding the movements and positions of the leg or foot, a graphical output comprising an indication of one or particular movements that satisfy criteria for a movement from a supine, prone, or lying-on-side leg position,

the criteria being satisfied based on a threshold activity, duration, and periodicity for time;

provide the graphical output; and

transmit the data, regarding the movements and positions of the leg or foot, to a system cloud.

18. The non-transitory computer-readable medium of claim 17, wherein the one or more instructions, that cause the one or more processors to collect the data regarding the movements and positions of the leg or foot, cause the one or more processors to:

collect the data, regarding the movements of the leg or foot, using at least one of an accelerometer or a gyroscope.

19. The non-transitory computer-readable medium of claim 17, wherein the one or more instructions, that cause the one or more processors to collect the data regarding the movements and positions of the leg or foot, cause the one or more processors to:

collect the data, regarding the movements and positions of the leg or foot, for a predetermined period of time.

20. The non-transitory computer-readable medium of claim 19, wherein the one or more instructions, that cause the one or more processors to generate the graphical output, cause the one or more processors to:

generate the graphical output over the predetermined period of time.

21. The non-transitory computer-readable medium of claim 17, wherein the one or more instructions, when executed by the one or more processors, cause the one or more processors to:

prompt, based on launching the application, the subject to activate collection of the data regarding the movements and positions of the leg or foot.

22. The non-transitory computer-readable medium of claim 17, wherein the one or more instructions, when executed by the one or more processors, cause the one or more processors to:

prompt, based on collecting the data regarding the movements and positions of the leg or foot, the subject to terminate the application.