A system (20) including a heater/cooler module (22) to heat/cool a first fluid in a primary circuit (28), a heat transfer fluid circuit (24) to provide a second fluid to a target device (38) to heat/cool the target device (38), and a heat exchanger (26) including at least part of the primary circuit (28) and at least part of a secondary circuit (36) through which the second fluid flows to facilitate heat transfer between the first fluid and the second fluid. The primary circuit (28) and the secondary circuit (36) are separate circuits and the first fluid and the second fluid remain separated in the system. Also, the system is modular, such that the elements can be stacked to increase heating/cooling capability and/or to increase the number of heating/cooling channels, and the system is compatible with portable applications, such as ambulance, aircraft, and helicopter applications, and with battery operation and/or the use of uninterruptible power supplies.

The objective of the present invention is to provide a body contact-type warmer using a heat pipe, the warmer comprising: a heating part, which includes a body having a heat preserving material-filled space, and heat transfer protrusions formed at both sides of the body; a heat pipe embedded in the heating part and having a heater; caps for holding the heat pipe and blocking both ends of the heating part; a pair of heating plate fixing parts having heat transfer protrusions which come in close contact with the heat transfer protrusions of the heating part so as to transfer heat and, simultaneously, are used as connection means; and a heating plate put on the upper ends of the heating part and the heating plate fixing parts. The present invention can provide the body contact-type warmer having effects of: reducing energy and costs by using only one heat pipe; and being easily manufactured and having a simple structure since the heating part is aligned at the center thereof so as to enable heat of the heat pipe to be quickly and continuously transferred, and the heating plate fixing parts capable of heat transfer to the heating part and, simultaneously, being capable of fixing the heating plate are connected to both sides of the heating part so as to enable the heating plate to be heated, and thus the present invention is very useful.

The present disclosure relates to devices and methods for rapidly and uniformly cooling thermal cycling systems comprising selectively heating or cooling a thermal boundary layer at the edge of a bulk fluid flow.

A container for warming fluids comprises an inlet port, an outlet port, a fluid conduit configured for fluidly communicating the inlet and outlet ports, and deflection sections. The fluid conduit has a non-constant maximum width in a direction of fluid flow through the fluid conduit. The deflection sections further comprise an entry section and an exit section, each respective exit section being arranged downstream, in the direction of fluid flow, from each respective entry section. The maximum width of the fluid conduit decreases along the direction of fluid flow through the entry section over a first distance and the maximum width of the fluid conduit increases along the direction of fluid flow through the exit section over a second, different distance. A blood treatment apparatus including the above-described container is also provided.

A heat exchange system for exchanging heat with working fluid from an intravascular heat exchange catheter or an external heat exchange pad includes a working fluid that circulates between the catheter or pad and a fluid cassette, and a refrigerant system that flows against the outer sides of cold plates between which the cassette is disposed.

A system (20) including a heater/cooler module (22) to heat/cool a first fluid in a primary circuit (28), a heat transfer fluid circuit (24) to provide a second fluid to a target device (38) to heat/cool the target device (38), and a heat exchanger (26) including at least part of the primary circuit (28) and at least part of a secondary circuit (36) through which the second fluid flows to facilitate heat transfer between the first fluid and the second fluid. The primary circuit (28) and the secondary circuit (36) are separate circuits and the first fluid and the second fluid remain separated in the system. Also, the system is modular, such that the elements can be stacked to increase heating/cooling capability and/or to increase the number of heating/cooling channels, and the system is compatible with portable applications, such as ambulance, aircraft, and helicopter applications, and with battery opera-tion and/or the use of uninterruptible power supplies.

A heat conduction device includes a heat source portion, a temperature control surface, and heat transfer portions. The heat source portion is configured to generate at least hot heat or cold heat. The temperature control surface is sectioned into a plurality of temperature control sections, and at least some of the plurality of temperature control sections are disposed away from the heat source portion. The plurality of heat transfer portions connect the heat source portion and the plurality of the temperature control sections to transfer heat between the heat source portion and the plurality of temperature control sections. The plurality of temperature control sections are separated from each other based on a distance from the heat source portion.

The present invention relates to an apparatus for flow tempering medical irrigation fluids and to a method carried out with the aid of this apparatus.

Apparatus for warming medical infusion fluids includes a heat pipe (12) warmed by an electrical heater (17) at one end. A replaceable fluid flow path (20) of helical configuration extends along the heat pipe (12) and is formed between an inner, thermally-conductive sleeve (21) with a helical profile and an outer insulative sleeve (26). An inlet (3) to the flow path (20) is located adjacent the heater (17), the outlet (4) being at the opposite end of the heat pipe (12). The inlet (3) is connected to a suspended saline bag (1) and the outlet (4) connects via tubing (5) to a catheter (6) inserted in a blood vessel. A temperature sensor (18) in the outlet tubing (5) provides a feedback output to a control unit (11) that controls operation of the heater (17) to maintain a stable temperature.

Methods and apparatuses for temperature modification of a patient, or selected regions thereof, including an induced state of hypothermia. The temperature modification is accomplished using an in-dwelling heat exchange catheter within which a fluid heat exchange medium circulates. A heat exchange cassette is attached to the circulatory conduits of the catheter, the heat exchange cassette being sized to engage a cavity within a control unit. The control unit includes a heater/cooler device for providing heated or cooled fluid to a heat exchanger in thermal communication with the fluid heat exchange medium circulating to the heat exchange catheter, a user input device, and a processor connected to receive input from various sensors around the body and the system. A temperature control scheme for ramping the body temperature up or down without overshoot is provided.