1. The element (12) of the trap (4, 10) for bubbles in the circuit (1) of extracorporeal hemodialysis, having: - a housing defining the inner space of the indicated element； - an inner wall (14) dividing the inner space of the element (12) into the first and the second compartment (15, 16)； - a port (62) of pressure, configured to connect to a pressure sensor for measuring pressure inside the trap (4, 10) for bubbles, and - an outlet (63) for removing clots (C) located inside the trap (4, 10) for bubbles, and the pressure port (62) is open in the first compartment ix (15) of the element (12), and deducing the hole (63) - into its second compartment (16), characterized in chtoelement (12) is further provided with an input (66) for the air open into the second compartment of said elementa.2. Element (12) according to claim 1, in which the second compartment (16) is made tapering in the direction of the outlet (63). Element (12) according to claim 2, in which the second compartment (16) has a shape close to the conical channel leading to the outlet (63). 4. Element (12) according to claim 1, in which the housing has a peripheral wall (21) with a substantially circular cross-section over which a partition (22) is located, and an inner wall (14) departs from the partition (22) along the peripheral diameter walls (21) .5. Element (12) according to claim 4, in which the height of the inner wall (14) is 5-15 mm. 6. Element (12) according to claim 1, containing channels associated with said openings (61, 62, 63) and an air inlet (66). Element (12) according to any one of the preceding paragraphs, made of transparent material. 8. An arterial (4) or venous (10) vesicle trap containing an element (12) made in accordance with any of the preceding paragraphs. 9. Circuit (1) for e1. Элемент (12) ловушки (4, 10) для пузырьков в контуре (1) экстракорпорального гемодиализа, имеющий:- корпус, задающий внутреннее пространство указанного элемента；- внутреннюю стенку (14), разделяющую вн
