Embodiments described herein relate to a reusable chemical cold pack. The apparatus includes a body which defines a chamber having two volumes separated by a thin film composite membrane. The thin film composite membrane includes a fabric material sheet, a thermoplastic polymer material sheet, and a polyamide material sheet. A first volume disposed on one side of the thin film composite membrane contains a solvent and a second volume disposed on an opposite side of the thin film composite membrane contains a solute. A check valve is disposed through the thin film composite membrane and enables mixing of the solvent and the solute. The solvent and the solute may also be separated after mixing by diffusion of the solvent through the thin film composite membrane.

Fabric for articles of clothing, as well as garments made of such fabric, and method and system for manufacturing such fabric and garments. A fabric or garment includes active-cooling materials or substances or elements, or a formulation or composition that includes one or more active-cooling materials or mixture thereof. A garment comprises a first garment-region that contains active-cooling substance, and a second garment-region that does not contain any active-cooling substances. One suitable active-cooling substance can be a mixture of polymer emulsion, water, glycerin, and Potassium Nitrate. The active-cooling substance can be deposited on the fabric, or printed on the fabric, or sprayed or brushed on the fabric, or soaked into the fabric, or otherwise integrated into the fabric.

A cervical collar that facilitates therapeutic hypothermia is provided and includes a cooling device having a front portion and a back portion fixedly coupled to the front portion on one side and removably coupled to the front portion on an opposite side. A fastening device removably couples the back portion to the front portion on the opposite side. The cooling device induces hypothermia in at least a portion of a patient. A sensor is provided that measures a physical characteristic of the patient.

A cerebral protection system generally includes an array of cold packs, an insulating cover, and optionally a set of trays. The cold pack contains two reactive materials separated by a rupturable membrane. When the first reactive material and the second reactive material are mixed, an endothermic reaction occurs. The system can be used to induce hypothermia in selected regions of the brain when used.

A personal cooling system for controlling personal body temperature at the beach comprises a first layer having a first edge region defining a size and a shape of the first layer, the first layer comprising a cooling gel pack, wherein the gel pack has an outer surface and a plurality of compartments for storing a temperature-controlling ingredient therein; a second layer having a second edge region defining a size and a shape of the second layer; and an outside bag, to an inside surface of the outside bag the first layer and the second layer are attached. The second layer in the system further comprises a liquid dispenser that is embedded in the mesh material of the second layer. The actions of the cooling system and the dispenser can be controlled by a remote controller.

A system for treating uterine atony, and promoting contraction of a uterus includes a heat transference article having a chilled surface in contact with an inner or outer surface of the uterus for a length of time sufficient to promote contraction while avoiding tissue damage. A heat transference medium such as a chilled saline solution, or cold gel in introduced to the article by injection, pre-filling, immersion or other suitable means, and is circulating or non-circulating.

Embodiments include cooling articles including a receptacle, an endothermic ingredient contained in a first capsule within the receptacle, an endothermic matrix within the receptacle, and a color indicator. The endothermic ingredient, when mixed with the endothermic matrix, generates an endothermic reaction, and the color indicator is activated upon the generation of the endothermic reaction to indicate that cooling has been initiated. Other embodiments include cooling articles including an electric circuit configured to melt at least a portion of the first capsule to enable the endothermic ingredient and the endothermic matrix to mix. Systems for providing cooling that include a person support apparatus and a cooling article including a thermoelectric device coupled to the person support apparatus to direct heat from a source region to a sink region including the person support apparatus are also described.

Embodiments described herein relate to a reusable chemical cold pack. The apparatus includes a body which defines a chamber having two volumes separated by a thin film composite membrane. The thin film composite membrane includes a fabric material sheet, a thermoplastic polymer material sheet, and a polyamide material sheet. A first volume disposed on one side of the thin film composite membrane contains a solvent and a second volume disposed on an opposite side of the thin film composite membrane contains a solute. A check valve is disposed through the thin film composite membrane and enables mixing of the solvent and the solute. The solvent and the solute may also be separated after mixing by diffusion of the solvent through the thin film composite membrane.

A system for treating uterine atony, and promoting contraction of a uterus includes a heat transference article having a chilled surface in contact with an inner or outer surface of the uterus for a length of time sufficient to promote contraction while avoiding tissue damage. A heat transference medium such as a chilled saline solution, or cold gel is introduced to the article by injection, pre-filling, immersion or other suitable means, and is circulating or non-circulating.

This invention provides a thin and discreet coolant device, and single and multiple unit dispenser containers containing the same. The coolant device comprises a first packet being comprised of a waterproof or water-resistant material containing water therewithin and further comprising a fold and further adapted to have a selectively permanent connection between external and internal layers of said fold, such that upon applying a force to laterally extend the ends of said packet, a rupture of said first packet occurs allowing for the leakage of the water contained therewithin. The coolant device further comprises a second packet which encases said first packet, comprising an exterior and interior layer, wherein said interior layer is comprised of an absorbant material and said exterior layer is comprised of a waterproof or water-resistant material and wherein an amount of powdered urea is located within an interior of said second packet. Upon lateral extension of the sides of the second packet, a rupture of said first packet occurs allowing for the leakage of the water contained therewithin and its exposure to said urea located within said second packet, which exposure results in an endothermic reaction resulting in an outer surface of said second packet becoming cooler to the touch than an outer surface temperature prior to said rupture. Use of the coolant devices to provide cooling to a skin surface on demand is described, as well.