HEAT PIPE WITH INTENSIFIED GAS WITHDRAWAL Russian patent published in 2009 - IPC A61F7/12 A61B18/02 H01L35/28 F25B21/02 

FIELD: medical equipment.

SUBSTANCE: heat pipe with intensified gas withdrawal contains dual-seal hollow tube accommodating capillary in the form of thin tubule made of thermal insulator, and thermoelectric module with measuring junctions adjoining condensation zone and base junctions adjoining flow heat exchanger. The hollow tube is point tapered from evaporation zone, and socket widened from condensation zone. In condensation zone, the capillary has expansion filled with porous material as metal sponge being in thermal contact with plate closing socket. Other side adjoins measuring junctions of thermoelectric module. Space between flow heat exchanger and plate, free from thermoelectric module is filled with thermal protection. Capillary in evaporation zone is tapered as a cone, external surface of which contains turned spiral groove widening from the edge in the form of Archimedes screw boards of which adjoin sharp cone of the tube from inside. The backlash between capillary and tube walls contains a partition made of the same material as capillary, distanced 3-4 cm from point of tube expansion in the bell, and partition dividing backlash cavity into two parts. From the socket tight to walls, backlash contains movable ring-shaped piston made of magnetic alloy. Partition and piston are provided with gas valves in direction from evaporation zone towards condensation zone, but not the opposite direction. Outside of the tube there are two insulated copper windings so that one is opposite to partition, and another is distanced 1.5-2 cm therefrom towards the socket.

EFFECT: higher efficiency of local volume cooling in biological object due to increased concentration of the gaseous heat-carrier in condensation zone.

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