Patent ID: 8460224

Claim:
A therapeutic wrap comprising: at least four layers, at least one of which is a larger layer having a surface area greater than the surface area than any other layer, wherein two of the layers are small layers of substantially the same size, each having a surface area that is less than the surface area of the larger layer, the small layers each being made of a fluid-tight material; wherein both of the small layers area fused to each other to create a trapezoidal fluid-tight chamber therebetween, and the fluid-tight chamber is also fused to the larger layer about the perimeter of the fluid-tight chamber; a trapezoidal fourth layer having two equidistant sides, a top and a bottom and having a surface area less than the surface area of the larger layer and greater than the surface area of either smaller layer, the fourth layer being fused to the larger layer such that it covers the fluid-tight chamber, the material of both the fourth layer and the larger layer being fluid permeable; and wherein the fourth layer is fused to only the larger layer along each of the equidistant sides while the top and bottom of the fourth layer are not sealed to any of the larger layer or two small layers; and a port in fluid communication with the fluid-tight chamber.