1. The detection device (30) configured to measure the composition of the respiratory gas flow received from the respiratory circuit (16), wherein the detection device comprises: a casing (48), a flow element (28) with the possibility of disassembly, which forms a closed flow duct for respiratory gas, wherein the flow cell comprises an inlet (32), sample chamber (36), a section (38) of the pump and an outlet (34), wherein the pump section includes a membrane (44) and an interface (46) of the actuator, the docking station (50) for flow-through element, sp rmirovanny through the housing, wherein the docking port for flow-through element is configured for engagement with the possibility of disassembly with a flow element a source (60) of radiation, placed in the housing and configured to emit electromagnetic radiation in the sample chamber flow-through element at the time when the flow element docked to a docking station for the flow-through element assembly (62) sensor disposed in the housing, configured in such a way that at the time when the flow element docked to the junction ochnomu assembly for flow-through element and the radiation source emits electromagnetic radiation into the sample chamber flow-through element, the sensor node receives electromagnetic radiation which is emitted ray source and passed through the channel formed in a flow element, wherein the sensor node further configured to generate an output signal, the transmitting information relating to one or more parameters of the received electromagnetic radiation, to determine the composition of the breathing gas in enclosed1. Детекторное устройство (30), сконфигурированное с возможностью измерять состав потока дыхательного газа, принимаемого из респираторной схемы (16), причем детекторное устройство содержит:кожух (48)проточный элемент (28) с возможностью разборки, формирующий закрытый проток для потока дыхательного газа, причем проточный элемент содержит впускное отверстие (32), отборную камеру (36)
