Abstract: The invention provides an improved hot/cold therapy pad consisting of a thermally conductive fluid and a discrete matrix insert contained within an outer envelope. The matrix insert has significant void space (over 50%) and is chemically inert relative to the other components within the envelope. The matrix has low bulk density and may be formed by bonding fibers together to form a mat. This matrix serves to reduce the flow of the thermally conductive fluid and provide for more effective and consistent heat (cold) transfer from the pad to the skin. The thermally conductive fluid has a viscosity greater than water and is stable over the typical range of hot/cold therapy applications. The invention eliminates saddle-bagging in hot and cold therapy applications.

Abstract: The invention provides an improved hot/cold therapy pad consisting of a thermally conductive fluid and a discrete matrix insert contained within an outer envelope. The matrix insert has significant void space (over 50%) and is chemically inert relative to the other components within the envelope. The matrix has low bulk density and may be formed by bonding fibers together to form a mat. This matrix serves to reduce the flow of the thermally conductive fluid and provide for more effective and consistent heat (cold) transfer from the pad to the skin. The thermally conductive fluid has a viscosity greater than water and is stable over the typical range of hot/cold therapy applications. The invention eliminates saddle-bagging in hot and cold therapy applications.

Abstract: The invention provides a sleeve containing a non-removable therapeutic agent within that is used to provide a variety of therapeutic modalities. The sleeve is constructed of an inner and outer layer of flexible materials suitable to pulled onto a portion of the body such as elbow, wrist, ankle, knee, or other limb for application of therapy. A therapeutic agent of choice becomes non-removable, permanently contained between the inner and outer layers. Various therapeutic agents may be chosen to delivery a wide range of modality. Microwave activated particulates may be contained within the inner and outer coverings to provide moist heat therapy. Metallic particulates may be chosen for cold therapy applications. Outer layers may be insulated to improve heat retention to extend therapeutic time. So constructed, a therapeutic sleeve is provided to delivery heat, cold, or contrast therapy to an affected body part of a human or animal subject.