Garment system including at least one muscle or joint activity sensor and at least one actuator responsive to the sensor and related methods

Patent metadata

Field	Value
Publication number	US-9687404-B2
Application number	US-201414469169-A
Country	US
Kind code	B2
Filing date	Aug 26, 2014
Priority date	Aug 26, 2014
Publication date	Jun 27, 2017
Grant date	Jun 27, 2017

Abstract

Embodiments described herein relate to a garment system including at least one muscle or at least one joint activity sensor, and at least one actuator that operates responsive to sensing feedback from the at least one muscle or the at least one joint activity sensor to cause a flexible compression garment to selectively compress against or selectively relieve compression against at least one body part of a subject. Embodiments disclosed herein also relate to methods of using such garment systems.

First claim

What is claimed is:

1. A garment system, comprising:
at least one flexible compression garment adapted to be worn on at least one body part of a subject, the at least one flexible compression garment defining an interior space adapted to receive the at least one body part;
one or more activity sensors supported by the at least one flexible compression garment, the one or more activity sensors positioned and configured to sense at least one characteristic of at least one muscle or at least one joint of the at least one body part that is related to muscle activity or joint activity thereof, the one or more activity sensors further configured to output one or more sensing signals indicative of the at least one characteristic;
one or more actuators positioned relative to the at least one flexible compression garment and configured to cause the at least one flexible compression garment to selectively compress against or selectively relieve compression against the at least one body part; and
a control system operably coupled to the one or more actuators and further operably coupled to the one or more activity sensors to receive the one or more sensing signals therefrom, the control system including control electrical circuitry configured to direct the one or more actuators to cause the at least one flexible compression garment to selectively compress against or selectively relieve compression against the at least one body part responsive to the one or more sensing signals from the one or more activity sensors.

2. The garment system of claim 1 , wherein the at least one characteristic of the at least one muscle of the at least one body part includes at least one of nerve activity of the at least one muscle, temperature of the at least one muscle, oxygenation of the at least one muscle, acoustic emission from the at least one muscle, or biochemical activity of the at least one muscle.

3. The garment system of claim 1 , wherein the at least one characteristic of the at least one joint of the at least one body part includes at least one of temperature of the at least one joint, oxygenation of the at least one joint, acoustic emission from the at least one joint, or biochemical activity of the at least one joint.

4. The garment system of claim 1 , wherein the one or more activity sensors include at least one of an electromyography sensor, a thermal sensor, a muscle oxygenation sensor, a chemical sensor, or an acoustic sensor.

5. The garment system of claim 1 , wherein the one or more activity sensors are configured to sense onset of muscle activity of the at least one muscle, and wherein the control electrical circuitry is configured to direct the one or more actuators to selectively compress against the at least one body part responsive to sensing the onset of muscle activity but prior to the muscle activity occurring.

6. The garment system of claim 5 , wherein the one or more activity sensors are configured to sense nerve impulses of the at least one muscle indicative of the onset of the muscle activity.

7. The garment system of claim 6 , wherein the one or more activity sensors include an electromyography sensor.

8. The garment system of claim 4 , wherein the thermal sensor includes a passive infrared sensor positioned and configured to sense infrared radiation from the at least one muscle of the at least one body part.

9. The garment system of claim 4 , wherein the muscle oxygenation sensor includes a passive infrared sensor positioned and configured to sense infrared radiation from the at least one muscle of the at least one body part.

10. The garment system of claim 4 , wherein the acoustic sensor includes an acoustic transducer configured to irradiate the at least one muscle or the at least one joint of the at least one body part with acoustic radiation and receive reflected acoustic radiation responsive thereto.

11. The garment system of claim 10 , wherein each of the acoustic radiation and the reflected acoustic radiation includes ultrasound radiation.

12. The garment system of claim 4 , wherein the acoustic sensor is positioned and configured to sense acoustic emission from the at least one joint of the at least one body part.

13. The garment system of claim 1 , wherein the flexible compression garment includes an interior surface defining the interior space, and wherein the one or more activity sensors are disposed at least partially on the interior surface.

14. The garment system of claim 1 , wherein the one or more actuators include at least one of one or more electroactive polymer actuators, one or more electroactive metallic actuators, one or more motors, or one or more hydraulic actuators.

15. The garment system of claim 14 , wherein the one or more electroactive polymer actuators include one or more actuator elements at least partially formed from ferroelectric polymers, dielectric elastomers, or electrostrictive graft elastomers.

16. The garment system of claim 14 , wherein the one or more electroactive metallic actuators include one or more actuator elements at least partially formed from a shape memory material.

17. The garment system of claim 16 , wherein the shape memory material includes a nickel-titanium shape memory alloy.

18. The garment system of claim 14 , wherein the one or more one or more motors include one or more micro-electro-mechanical motors.

19. The garment system of claim 1 , wherein the one or more actuators extend circumferentially along the at least one flexible compression garment, and are positioned and configured to increase or decrease the interior space of the at least one flexible compression garment responsive to actuation thereof.

20. The garment system of claim 19 , wherein the one or more actuators include a plurality of actuators that each extend circumferentially about the at least one flexible compression garment.

21. The garment system of claim 1 , wherein the one or more actuators includes a substantially tubular actuator.

22. The garment system of claim 1 , wherein the one or more actuators are at least partially embedded within the flexible compression garment.

23. The garment system of claim 1 , wherein the flexible compression garment defines an exterior, and wherein the one or more actuators extend about at least a portion of the exterior of the flexible compression garment.

24. The garment system of claim 1 , wherein the control system includes:
a power supply operably coupled to the one or more actuators and the control electrical circuitry; and
wherein the control electrical circuitry of the control system is configured to direct the power supply to alter an actuation stimulus to the one or more actuators, which causes actuation thereof, responsive to the one or more sensing signals from the one or more activity sensors.

25. The garment system of claim 24 , wherein the one or more actuators include one or more electroactive polymer actuators, and wherein the power supply includes a voltage source configured to apply a voltage to the one or more electroactive polymer actuators to cause actuation thereof.

26. The garment system of claim 24 , wherein the one or more actuators include one or more electroactive metallic actuators, and wherein the power supply is configured to apply a current to the one or more electroactive metallic actuators to cause actuation thereof.

27. The garment system of claim 1 , wherein the control electrical ci

Assignees

• Elwha Llc

Inventors

• Cheatham Iii Jesse R
• Hyde Roderick A
• Ishikawa Muriel Y
• Kare Jordin T
• Leuthardt Eric C
• Myhrvold Nathan P
• Sweeney Elizabeth A
• Tegreene Clarence T
• Whitmer Charles
• Wood Jr Lowell L
• Wood Victoria Y H

Classifications

• A61H2201/164

  Feet or leg, e.g. pedal · CPC title

• A61H2201/1635

  Hand or arm, e.g. handle · CPC title

• A61H2201/5097

  wireless · CPC title

• A61H2201/1238

  with hydraulic or pneumatic drive · CPC title

• A61H2201/165

  Wearable interfaces · CPC title