1. Coupling system consisting of two parts (1, 2) for the tube (3) having a first lumen (4) along the axis (A) of the tube and a second lumen (5) outside the axis of the tube, wherein the first portion (1) comprises as connecting elements two coaxial cone (6, 7), wherein the first lumen (4) leads to the first inner cone (6) and the second lumen (5) leading to the space (8) between the first cone (6) and the second cone (7 ), wherein the second part (2) comprises as connecting two coaxial conical elements (9, 10), the response with respect to the two cones (6, 7) of the first part (1), wherein two cones (6, 7) of the first part (1) interact water- and / or air-tight manner with two cones (9, 10) of the second part (2) for connecting the two parts (1, 2) .2. The system according to claim 1, characterized in that the cones (6, 7) of the first part (1) can be inserted into the water and / or air-tight manner in two cones (9, 10) of the second part (2) .3. The system according to claim 1, characterized in that the cones (9, 10) of the second part (2) can be inserted into the water and / or air-tight manner in two cones (6, 7) of the first part (1) .4. The system according to claim 1, characterized in that at least one of two complementary connector elements (6, 9 7, 10) is made of elastically deformable materiala.5. The system according to claim 1, characterized in that the first part (1) includes the other two coaxial connectors (11, 12) for connection to the tube (3), wherein at least one of these elements has a conical formu.6. The system according to claim 5, characterized in that the inner connecting element (11) has a conical shape with an increasing diametrom.7. according to claim 5 or 6, characterized in that the outer connecting element (12) has a conical shape with intelligence1. Соединительная система из двух частей (1, 2) для трубки (3), имеющей первый просвет (4) по оси (А) трубки и второй просвет (5) вне оси трубки, причем первая часть (1) включает в качест
