FAST HEATING HEAT PACKS WITH BINARY ACTION

1 . A thermal treatment device comprising:

at least one fast-acting heat pack; and

at least one long lasting heat pack.

2 . The thermal treatment device of claim 1 , wherein the fast-acting heat pack is disposed on the long-lasting heat pack.

3 . The thermal treatment device of claim 1 , wherein the fast-acting heat pack is disposed between two long lasting heat packs.

4 . The thermal treatment device of claim 1 , further comprising:

at least one pocket for the at least one fast-acting heat pack; and/or

at least one pocket for the at least one long-lasting heat pack.

5 . The thermal treatment device of claim 1 , further comprising a first thermal composition and a second thermal composition, wherein said first thermal composition is contained within said at least one fast-acting heat pack and said second thermal composition is contained within said at least one long lasting heat pack.

6 . The thermal treatment device of claim 5 , wherein the first thermal composition in said fast acting heat pack emits heat from about 1 to about 30° C. above the skin surface temperature of a user.

7 . The thermal treatment device of claim 5 , wherein said second thermal composition in said long lasting heat pack emits heat from about 1 to about 20° C. above the skin surface temperature of a user.

8 . The thermal treatment device of claim 5 , wherein said first thermal composition in said fast-acting heat pack emits heat up to about 30° C. above the skin surface temperature of a user within 15 minutes from start of use.

9 . The thermal treatment device of claim 5 , wherein said second thermal composition in said long acting heat pack emits heat up to about 20° C. above the skin surface temperature of a user within about one hour from start of use.

10 . The thermal treatment device of claim 5 , wherein a maximum temperature reached by the fast-acting heat pack is at least about 10° C. higher than a steady-state temperature reached by the long acting heat pack.

11 . The thermal treatment device of claim 10 ,

wherein the fast-acting heat pack is adapted to reach the maximum temperature within a first time after opening the thermal treatment device,

wherein the long acting heat pack is adapted to reach the steady state temperature within a second time after opening the thermal treatment device,

and wherein the maximum temperature is higher than the steady state temperature by at least about 5° C.

12 . The thermal treatment device of claim 11 , wherein said first time is less than 30 minutes, said second time is less than 60 minutes, and wherein said first time is less than said second time.

13 . The thermal treatment device of claim 5 , wherein the first thermal composition and the second thermal composition are the same, and wherein the fast-acting heat pack has a first impermeable enclosure and the long lasting heat pack has a second air permeable enclosure, and wherein permeability of said first air permeable enclosure is higher than permeability of said second air permeable enclosure.

14 . The thermal treatment device of claim 5 , wherein the thermal composition comprises iron powder.

15 . A method of treatment comprising:

exposing a user's skin to a thermal treatment device, comprising:

at least one fast-acting heat pack; and

at least one long lasting heat pack.

16 . The thermal treatment device of claim 1 , wherein a thermally insulating material is disposed between said fast-acting heat pack and a body of a user of said thermal treatment device, said thermally insulating material adapted to prevent a thermal injury to the user.