A flexible evaporative cooling pad includes a fabric base and at least two rows of fabric chambers affixed to the base. Each row of fabric chambers includes a first hydrogel-containing fabric chamber and an adjacent hydrogel-containing fabric chamber. Stitching isolates the hydrogel in each hydrogel-containing fabric chamber. The cooling pad cools under the legs or the head and neck and promotes the sleep cycle. In addition, the cooling pad may be used to treat headaches, fever, and hot flashes or just to cool down when it is hot. Use of an evaporative cooling pad may reduce the demand for air conditioning.

A wearable device includes a housing to encompass a portion of a body part, biometric sensors coupled to the housing, a controller coupled to the housing and biometric sensors, a communication channel for communicating with external devices and a temperature regulator to controllably adjust a temperature of the housing. The wearable device is configured to provide remote controlled heating and cooling of the body part. The wearable device may include an evaporative heat exchanger and a thermoelectric heat pump. The wearable device may provide means for dissipating heat through vaporization of a substance or using an advective flux and phase transition.

A therapeutic cooling and/or compression system, configured to cool a body portion, comprises a conformal covering for covering the body portion configured to extract heat energy from the body portion, a sensor device within the conformal covering for sensing a parameter of the body portion, an actuator configured for changing an amount of heat energy extracted from the body portion, and a control unit configured for regulating the actuator responsive to control input from the sensor device. The system may be portable, enabling a patient to walk while undergoing treatment.

A kit for the assembly of a cryogenic chamber, including at least four wall modules including respective bodies of insulation; wherein the at least four wall modules include at least two end wall modules and at least two lateral wall modules; wherein the at least four wall modules include at least one vent wall module including a lumen surrounded by insulation, a connector extending from a surface of the vent wall module to the lumen, and a vent extending from the surface of the vent wall module to the lumen, wherein the connector is in fluid communication with the vent via the lumen; and an air chiller that is connectable to the connector of the vent module such that the air chiller is in fluid communication with the vent.

An injection tool and associated methods are shown. Example tools and methods described provide cooling to numb a local area prior to an injection. The local numbing can be used to reduce or eliminate pain associated with the subsequent injection. In selected examples, circuitry and one or more sensors are used to calculate an appropriate contact time of a heat sink with the local region to best provide a desired amount of numbing.

Wearable heat transfer devices and associated systems and methods are disclosed herein. In some embodiments, a representative heat transfer device can comprise (i) thermoelectric components each having a first side and a second side, (ii) a heat transfer system having a heat exchanger and an array of fluid distribution networks, in which individual fluid distribution networks are thermally coupled to the second side of a corresponding one of the thermoelectric components and fluidically coupled to the heat exchanger, and (iii) a flexible support unit coupled to the first sides of the thermoelectric components and extending at least between individual thermoelectric components, wherein the flexible support unit is a heat spreader configured to enhance heat transfer from a target area.

A prosthesis includes a socket for receiving a residual limb, the socket having a socket wall defining a limb-receiving surface; a heat pipe including a working fluid and a wicking structure, the heat pipe having a socket section and a heat sink section, the heat pipe extending along its length through the socket wall proximate to or exposed at the limb-receiving surface, wherein the working fluid has a boiling point of from about 0° C. to 90° C. such that the working fluid is adapted to evaporate to form vapor under the influence of the heat of a residual limb in the socket thus drawing heat from and cooling the residual limb. A heat sink section of the heat pipe passes through the heat sink, the heat sink reducing the temperature of the working fluid.

Wearable heat transfer devices and associated systems and methods are disclosed herein. In some embodiments, a representative heat transfer device can comprise (i) thermoelectric components each having a first side and a second side, (ii) a heat transfer system having a heat exchanger and an array of fluid distribution networks, in which individual fluid distribution networks are thermally coupled to the second side of a corresponding one of the thermoelectric components and fluidically coupled to the heat exchanger, and (iii) a flexible support unit coupled to the first sides of the thermoelectric components and extending at least between individual thermoelectric components, wherein the flexible support unit is a heat spreader configured to enhance heat transfer from a target area.

Wearable heat transfer devices and associated systems and methods are disclosed herein. In some embodiments, a representative heat transfer device can comprise (i) thermoelectric components each having a first side and a second side, (ii) a heat transfer system having a heat exchanger and an array of fluid distribution networks, in which individual fluid distribution networks are thermally coupled to the second side of a corresponding one of the thermoelectric components and fluidically coupled to the heat exchanger, and (iii) a flexible support unit coupled to the first sides of the thermoelectric components and extending at least between individual thermoelectric components, wherein the flexible support unit is a heat spreader configured to enhance heat transfer from a target area.

A catheter is provided comprising a flexible heat transfer element provided on an outer surface of the catheter, a conduit arranged to supply an inflation fluid for inflating the flexible heat transfer element so as to form an inflated balloon, a guide wire lumen for receiving a guide wire, and an elongate cooling element arranged to cool said inflation fluid for inflating the balloon. Said cooling element and said guide wire lumen are arranged inside the flexible heat transfer element such that, when inflated the cooling element is substantially central within the balloon and said guide wire lumen is parallel to and radially offset from the cooling element.