Drãgerwerk Ag & Co, Kgaa

Thorsten Dunkel

Andreas Junk

Ludger Tappehorn

Klaus Abraham

A nonreturn valve () for a compact ventilation system (), includes a recoil membrane () and a holding element () for holding the recoil membrane () and for fastening the nonreturn valve () at a flow duct () of the compact ventilation system (). The recoil membrane () has at least one mechanical stabilizing section () for cooperating with at least one mechanical counter-stabilizing section () of the holding element () or of the flow duct () of the compact ventilation system (). At least one opening section () is provided for the defined movement of the recoil membrane () during the opening of the nonreturn valve () and a holding section () is provided for holding the recoil membrane () at a counter-holding section () of the holding element (). A compact ventilation system () is provided with such a nonreturn valve ().

Nonreturn valve for a compact ventilation system as well as compact ventilation system

An exhalation valve, an inhalation valve, a ventilator and a method for controlling ventilation are provided. An exhalation valve () or inhalation valve () for a medical ventilator () for controlling a flow of a fluid, especially a breathing gas, has an inlet () and an outlet () for the fluid. Between the inlet () and the outlet (), a valve seat crater () and a diaphragm () are provided. The diaphragm () is movable relative to the valve seat crater () for influencing the flow through the valve seat crater (). The valve seat crater () and the diaphragm () are arranged such that the valve seat crater () can partially be sealed by means of the diaphragm (), with the diaphragm () and the valve seat crater () not closing completely on initial contact of the diaphragm () and the valve seat crater ().

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Fahrenkrug, Germany

Thorsten Dunkel