Abstract: A connection unit establishes a fluid connection between a patient and a ventilator. The connection unit includes a patient-side connection piece, a device-side connection piece, a port piece and a central piece, which provides a tube with a curved tube segment and is connected with a fluid-tight connection to the two connection pieces. The port piece includes a straight tube segment and a bent surface with a bent surface and with a passage opening. The port piece is inserted into a receiving opening of the central piece. The bent surface of the port piece forms a part of a wall of the curved tube segment. The straight tube segment of the port piece and the central piece provide a straight tube, which is interrupted by the passage opening. An additional device is insertable through the straight tube segment and through the passage opening into the provided tube.

Abstract: A connection device, for mechanical ventilation and monitoring of spontaneous breathing of a patient (P), includes a fluid-guiding unit (9, 11, 15) and establishes a fluid connection between a medical arrangement (100) and a patient-side coupling unit (19). A volume flow sensor (90) measures an indicator of volume flow of fluid through the fluid-guiding unit. A volume flow sensor component (2) engages with an interior of the fluid-guiding unit. A homogenization unit (10) is nonrotatably inserted into the interior between the patient-side coupling unit and the component and includes two sieves and a connection element, which connects the sieves together. The homogenization unit homogenizes the flow of fluid through the fluid-guiding unit. An inner profile of the fluid-guiding unit and an outer profile of the homogenization unit together form a mechanical coding, which determines a defined rotation position of the homogenization unit in relation to the fluid-guiding unit.

Abstract: A connection unit (20) establishes a fluid connection between a patient (P) and a ventilator (30). The connection unit (20) includes a patient-side connection piece (2), a device-side connection piece (1), a port piece (3) and a central piece (8), which provides a tube with a curved tube segment and is connected with a fluid-tight connection to the two connection pieces (1, 2). The port piece (3) includes a straight tube segment and a bent surface (membrane) with a bent surface and with a passage opening. The port piece (3) is inserted into a receiving opening of the central piece (8). The bent surface of the port piece (3) forms a part of a wall of the curved tube segment. The straight tube segment of the port piece (3) and the central piece (8) provide a straight tube, which is interrupted by the passage opening. An additional device (40) is insertable through the straight tube segment and through the passage opening into the provided tube.

Abstract: A connector (100) for arranging at least one sensor at a ventilation system. The connector includes at least one basic body (103) for connection to at least one ventilation device, at least one pivoting element (101) for connection to a user, and at least one sensor mount (125) for at least one sensor. The at least one pivoting element (101) is connected directly and undetachably to the basic body (103) on a first side (115). The at least one pivoting element (101) is pivotable about at least one axis with respect to at least one part of the basic body (103) in order to protect the basic body (103) against pulling and compressive forces imparted by the user.