HEAT PADS COMPRISING SPIRAL HEAT CELLS

Abstract

The invention relates to heat products for single treatment and/or as self-therapy in the event of acute, recurrent and/or chronic states of pain, comprising heat-generating materials arranged in spiral form.

Claims

1.-14. (canceled)

15. A heat pad comprising at least one or more heat cells, wherein at least one of the one or more heat cells has a spiral shape and comprise a heat-generating substance mixture which comprises a heat-generating material mixture comprising at least iron powder and carbon powder.

16. The heat pad of claim 15, wherein at least one of the one or more heat cells is shaped as an Archimedean spiral.

17. The heat pad of claim 15, wherein at least one of the one or more heat cells is shaped as a Fermat spiral.

18. The heat pad of claim 15, wherein at least one of the one or more heat cells is shaped as a triskelion spiral.

19. The heat pad of claim 15, wherein at least one of the one or more heat cells is shaped as a multiple spiral.

20. The heat pad of claim 15, wherein the spiral has an oval or angular shape.

21. The heat pad of claim 15, wherein at least a part of a surface of the pad has an adhesive layer thereon.

22. The heat pad of claim 15, wherein a defined amount of the heat-generating material mixture is fully surrounded by two polymer films bonded to one another, at least one of the polymer films being oxygen-permeable.

23. The heat pad of claim 15, wherein a defined amount of heat-generating material mixture is enclosed in a tube or a hose, the tube or hose consisting of an oxygen-permeable material.

24. The heat pad of claim 15, wherein the one or more heat cells are exchangeable.

25. The heat pad of claim 15, wherein the heat pad comprises at least four heat cells in spiral form.

26. The heat pad of claim 25, wherein the heat pad is in the form of a triangle which has concave recesses in its sides and is rounded off at its corners.

27. The heat pad of claim 25, wherein the heat pad has a rectangular elongated form.

28. The heat pad of claim 27, wherein the heat pad comprises at least two cells in spiral form arranged successively in longitudinal direction.

29. The heat pad of claim 26, wherein the heat cells in spiral form are configured as Fermat spirals bonded to one another.

30. The heat pad of claim 28, wherein the heat cells in spiral form are configured as Fermat spirals bonded to one another.

31. The heat pad of claim 15, wherein the heat-generating material mixture comprises, in at least one heat cell, a microencapsulated phase change material (PCM).

32. The heat pad of claim 15, wherein a lenticular, semi-convex layer of heat-conducting polymers is present on a skin-facing side of the heat pad in a region of the heat cells.

33. A heat belt, wherein the heat belt comprises at least one heat pad according to claim 15.

34. The heat belt of claim 33, wherein the heat belt is configured to enable joining in the form of a loop, enwrapping a body, by belt elements mounted on a longitudinal axis and ending in a fastener system.

Description

FIGURES

[0085] FIG. 1 shows an Archimedean spiral. It forms when, in a rotary motion, the radius grows proportionally with the angle of rotation.

[0086] FIG. 2 shows a Fermat spiral.

[0087] FIG. 3 shows a triskelion.

[0088] FIG. 4 shows, by way of example, a heat pad 1 having one heat cell 2, wherein the heat cell has the shape of four Fermat spirals 2, 2, 2 and 2 joined to one another.

[0089] FIG. 5 shows, by way of example, a heat pad 3 having two heat cells 4, 4, wherein the heat cells each have the shape of Fermat spirals.

[0090] FIG. 6 shows, by way of example, an elongated rectangular heat pad 5 with ends tapering to a cone, having a heat cell 6, wherein the heat cell has the shape of four Fermat spirals joined to one another.

[0091] FIG. 7 shows, by way of example, a triangular heat pad 7 having four separate heat cells 8, 9, 10, 11, wherein there is a triskelion-shaped heat cell 8 at the center surrounded by three heat cells 9, 10, 11 in the geometry of Fermat spirals.

[0092] FIG. 8 shows, by way of example, a triangular heat pad 12 having one heat cell 13, wherein the heat cell has at the center a geometry of a three-arm Fermat spiral 13 connected at the end point of each spiral arm to a further heat cell section 13, 13, 13 centered in the direction of the tips of the triangle in the form of a Fermat spiral.