A device comprising a heat-generating component that comprises an alkali metal is provided. The alkali metal in the presence of water at a point of contact of the device undergoes an exothermic reaction to generate heat in situ. The amount of heat generated is proportional to and/or limited by the amount (or moles) of water at the point of contact, and the heat generated is sufficient to achieve an increase in temperature at the point of contact to achieve a therapeutic or beneficial result. In one embodiment, the device is used for reducing sweat production in a subject suffering from excessive sweating or hyperhidrosis. In other embodiments, the device is used to substantially sterilize a surface or render a surface substantially aseptic.

The purpose of the present invention is to provide a heat generator that contains a volatile component and in which the volatile component is stably maintained during storage, the volatile component is prevented from adhering to a heat-generating section, and it is possible to achieve an excellent warming effect during use. This heat generator comprises a heat-generating section (1), an accommodation body (2) for accommodating the heat-generating section (1), an adhesive layer (3) provided to an attachment surface side of the accommodation body (2), and a release sheet (4) provided to the attachment surface side of the adhesive layer (3). As a result of including a volatile component in the adhesive layer (3) and respectively providing gas barrier layers (211), (41) to a first packaging material (21) constituting the attachment surface side of the accommodation body (2) and to the release sheet (4), it is possible to stably maintain the volatile component within the adhesive layer (3) during storage. It is thereby possible to prevent the volatile component from adhering to the heat-generating section (1) during storage and to achieve an excellent warming effect during use.

A personal extremity warming apparatus having a band, a pocket attached to the band, and an opening adapted to receive a heating element, the pocket having a front panel and rear panel the front panel adapted to attach to said rear panel along all but one of a plurality of front and rear panel sides. In an embodiment of the invention, the personal extremity warming apparatus has a band, a rear panel fixedly attached to the band along a first long side, a first short side, and a second short side, and the rear panel further having a second long side of the rear panel forming an opening adapted for receiving a heating element.

An object of the present invention is to provide a water absorbent resin powder for a heat-generating element composition, which suppresses the generation of the aggregates derived from the water absorbent resin and the adhesion of the water absorbent resin in the production of a heat-generating element composition. A present inventive water absorbent resin powder for a heat-generating element composition includes polyacrylic acid (salt)-based water absorbent resin powder which have a bulk specific gravity (specified by JIS K3362) of 0.630 g/cm.sup.3 or less, fluid retention capacity without load (CRC) for a 0.9% by weight aqueous solution of sodium chloride (specified by ERT441.01-2) of 32.0 g/g or less, a weight-average particle diameter (specified by sieve classification) of 250 ?m or more, and an amount of a residual glycidyl-based crosslinking agent of 10 ppm or less.

It is an object of the present invention to provide a chemical body warmer that achieves a sufficient heating effect even in a low-temperature environment at about 10? C. or less. A chemical body warmer including a flat housing including one or a plurality of cells each containing an exothermic composition that generates heat upon contact with air, wherein a total area of the cell or the plurality of cells in a plan view of the housing is 200 cm.sup.2 or more, and the chemical body warmer is used by being placed under a blanket.

Heated socks used to keep a wearer's feet and toes warm. The heated socks include pockets for oxygen-activated chemical heating pouches which generate heat when exposed to air and via friction caused by the wearer when walking, jumping, or other activities and distributed through the sock from toe to ankle to heel. The heated socks are provided with extra cushioning on the bottom of the feet to aid in comfort for the wearer. The heated socks also keep the feet dry from moisture and perspiration.

A flexible adhesive kinesiology/physio tape adapted to produce heat from the exothermic oxidation when exposed to air. The inventive tape includes a layer of porous material with iron and salt disposed therein. In the best mode, the layer is flexible and self-adhesive. A layer of plastic is included to inhibit oxidation prior to application and use. In a preferred embodiment, the inventive flexible adhesive tape includes a first layer of flexible adhesive high quality porous fabric; a second layer of flexible adhesive high quality porous fabric; and the layer of flexible exothermic material, sandwiched between the first and second layers. The third layer can be fabricated with cellulose, iron, water, activated carbon, vermiculite and salt or fabricated with a mixture of chemical salt in dry crystal form with water. Or any other chemical mixture that creates an exothermic reaction.

A medical fluid warming system with a warmer, a medical fluid, and a barrier. The warmer has an exothermic warming composition. The medical fluid is configured to be applied to a patient's body during a medical procedure. The medical fluid may be packaged in a single-use packet, and the packet may be bonded to the warmer with an adhesive. The medical fluid is thermally connected to the warmer. The barrier is configured to separate the exothermic warming composition from a reactant composition. The barrier is removable by the user to allow the reactant composition to contact the exothermic warming composition. Contact between the reactant composition and the exothermic warming composition causes the exothermic warming composition to release heat.

To provide a holder which is for a heating and cooling tool and which fits on the upper arm and can provide a stable heating or cooling effect to skin. This holder for a heating and cooling tool is mounted on the upper arm, and comprises: a holding part having a pocket in which a heater or cooler is accommodated; and a belt joined to the holding part so that an insertion space into which the upper arm is inserted is formed between the holding part and the belt, wherein the holding part is made of a material that does not substantially expand or contract, and the belt is made of an elastic material to allow the belt to conform to changes in the thickness of the upper arm accompanying bending and straightening of the elbow.

A steam heating tool includes a cover member that has a cover portion covering a mouth and a nose of a user, and a steam generator that is held on a surface of the cover portion on a side of the user, in which a space interposed between the cover portion and a face of the user is formed at a time of use, and the steam heating tool satisfies following formulae (1) to (3): 300VG1,500 (1); 40MV150 (2); and 5VG/MV25 (3), where VG represents a cumulative steam generation amount [mg] released into the space for 10 minutes from a start of steam generation of the steam generator, and MV represents a volume [mL] of the space.