Arrangement and process for supplying a patient-side coupling unit with a gas mixture

Abstract

An arrangement and process supply a patient-side coupling unit with a gas mixture including a first gas component and a second gas component. A first duct (K.) directs the first gas component from a first source (E) to a mixing point (). The second gas component flows from a second source () to a buffer reservoir () and from the buffer reservoir () through a second duct (K.) to the mixing point (). The gas mixture flows from the mixing point () through an inspiration duct (K.) to the patient-side coupling unit. A pneumatic control line () provides a control fluid connection between the first duct (K.) and the buffer reservoir (). A pressure balancing is effected between the pressure inside (In.O, In.k) the buffer reservoir (), the pressure in the first duct (K.), and the pressure in the second duct (K.).