Body worn apparatus

1. An apparatus to be worn by an individual, the apparatus comprising:

a bundle of incompressible hydraulic fluid activation elements, the bundle of incompressible hydraulic fluid activation elements being arranged parallel in a side-by-side relationship with respect to their lengths, wherein each respective activation element of the bundle of incompressible hydraulic fluid activation elements has a diameter between 0.4-0.8 cm;

a substrate for mounting the bundle of incompressible hydraulic fluid activation elements to likewise be worn by the individual and for cooperative engagement with a body portion of the individual; and

an incompressible hydraulic fluid pump system for activation of each respective activation element to vary a force applied by the bundle of incompressible hydraulic fluid activation elements and the substrate to the individual, wherein both ends of each respective activation element of the bundle of incompressible hydraulic fluid activation elements are anchored to the substrate such that, when activated by the incompressible hydraulic fluid pump system, a desired number of activation elements expand outwardly along their lengths to thereby contract and provide a contraction force to the substrate.

2. The apparatus of claim 1 , wherein the apparatus is configured to activate a desired number of activation elements to provide the contraction force to the individual.

3. The apparatus of claim 1 , wherein the diameter between 0.4-0.8 cm of the each respective activation element causes the bundle of incompressible hydraulic fluid activation elements to have about twice a force density of a single activation element having a diameter at least five times greater than the each respective activation element in the bundle of incompressible hydraulic fluid activation elements.

4. The apparatus of claim 1 , wherein the each respective activation element of the bundle of incompressible hydraulic fluid activation elements is elongate and pliable.

5. The apparatus of claim 1 , wherein the each respective activation element of the bundle of incompressible hydraulic fluid activation elements is an artificial muscle style.

6. The apparatus of claim 1 , wherein the substrate is substantially soft and pliable.

7. The apparatus of claim 1 , wherein the substrate is configured as a sleeve for positioning about an appendage of the individual.

8. The apparatus of claim 7 , wherein the sleeve has opposing ends for anchoring of the opposing ends of the each respective activation element and for substantially anchoring the ends of the sleeve to two portions of the individual that are joined together by a rotatable joint.

9. The apparatus of claim 8 , wherein the apparatus is configured to activate the each respective activation element to expand and contract the bundle of incompressible hydraulic fluid activation elements and hence the substrate is desired to at least assist in rotationally moving the two portions of the individual, with respect to each other.

10. The apparatus of claim 1 , wherein the bundle of incompressible hydraulic fluid activation elements comprises more than 6 activation elements.

11. The apparatus of claim 1 , wherein the bundle of incompressible hydraulic fluid activation elements comprises more than 12 activation elements.

12. A method comprising:

providing a body-worn apparatus having a bundle of activation hydraulic elements, wherein each respective activation hydraulic element in the bundle of activation hydraulic elements has a diameter between 0.4-0.8 cm;

providing a substrate supporting the bundle of activation hydraulic elements;

placing the body-worn apparatus onto a body of a person; and

activating the bundle of activation hydraulic elements, wherein at least one activation hydraulic element of the bundle of activation hydraulic elements has an interior for receiving a liquid, the substrate further comprising a tube for channeling the liquid toward and away from the interior.

13. The method of claim 12 , wherein the substrate comprises a joint, at least one joint bundle being operatively coupled with the joint and wherein the method further comprises activating at least one activation hydraulic element in the bundle of activation hydraulic elements to move a portion of the body-worn apparatus about the joint.

14. The method of claim 12 , further comprising:

positioning the bundle of activation hydraulic elements near a chest of the person; and

activating the bundle of activation hydraulic elements to assist breathing of the person.

15. The method of claim 12 , wherein the substrate comprises a back portion having a bundle of the bundle of activation hydraulic elements, the method further comprising:

positioning the back portion on a back of the person when worn; and

setting a length of the back portion to a fixed length.

16. The method of claim 12 , further comprising:

positioning at least one of the tube and an activation hydraulic element in thermal contact with the person; and

flowing liquid through the at least one of the tube and the activation hydraulic element.

17. The method of claim 16 , further comprising:

increasing a temperature of the liquid.

18. The method of claim 16 , further comprising:

decreasing a temperature of the liquid.

19. A body worn apparatus comprising:

a bundle of activation hydraulic elements, each activation hydraulic element in the bundle of activation hydraulic elements being configured to be independently activated and controlled as needed to at least vary a power output of the bundle of activation hydraulic elements by selectively activating and controlling a desired number of activation hydraulic elements in the bundle of activation hydraulic elements, each activation hydraulic element in the bundle of activation hydraulic elements having a diameter between 0.4-0.8 cm; and

a substrate supporting the bundle of activation hydraulic elements, the substrate being configured to be worn by a person.