Drãgerwerk Ag & Co, Kgaa

Jan-Henning Lütkhoff

Ludger Tappehorn

Matthias Hoder

Frerich Asmus

A connection device, for mechanical ventilation and monitoring of spontaneous breathing of a patient (P), includes a fluid-guiding unit () and establishes a fluid connection between a medical arrangement () and a patient-side coupling unit (). A volume flow sensor () measures an indicator of volume flow of fluid through the fluid-guiding unit. A volume flow sensor component () engages with an interior of the fluid-guiding unit. A homogenization unit () 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.

Connection with a volume flow sensor and a homogenization unit for artificial ventilation of a patient and manufacturing process

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.

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Lübeck, Germany

Jan-Henning Lütkhoff