THERMAL URTICARIA DIAGNOSTIC DEVICE Russian patent published in 2024 - IPC A61B5/01 H01L23/38 F25B21/02 H10N10/10 

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment. Device for controlled provocative temperature exposure on patient's skin for diagnosis of cold or heat urticaria comprises a metal heat-conducting element installed in housing (10), which is connected to heating and cooling means and to temperature sensors. Heating and cooling means are made in the form of temperature-controlled Peltier elements (31-33). Cover (11) of the housing is made of a dielectric with straight slit (12) for applicator (20), which provides thermal contact with the patient's skin. Housing tray (13) is made of dielectric. Between the cover and the tray there is ventilated base (14) with plate radiators and shelves (15) for fixing boards (51) of the control and monitoring unit. On wide side surface of housing there are ventilation holes for air inlet fans (171, 172), on narrow side surfaces (18) of housing – holes (181) for plate radiators (191). In the base there is a partition for separate direction of air flows from each fan to the corresponding radiator. Heat-conducting element is made of angular unequal aluminium profile with first vertical and second horizontal flanges. Vertical shelf with its edge is placed in the slot on the housing cover. Lower side of the second flange is connected by its ends in the zones free from the presence of the first flange to the contact surfaces of the Peltier elements. Opposite contact surfaces of Peltier elements are installed on the outer side of the base wall. Temperature sensors (40) are arranged on the lower side of the second flange evenly along the length of the first flange and are installed at the angle joint of the flanges.

EFFECT: high accuracy of setting the temperature profile of the applicator at the point of contact with the skin.

6 cl, 9 dwg