Patent DE-102006039140-A1 (DE)
Title: Device for fractionating expiration volume for localization of diseases in respiratory tract, comprises inlet for inspired air that flows into cavity and outlet for inspired air leading from cavity to the lungs, means for closing the inlet
Inventor: BECHER GUNTHER
IPC: A61B5/087
Filed: 2006-08-16
Abstract: The device for fractionating expiration volume for the localization of diseases in respiratory tract, comprises an inlet (1) for inspired air that flows into a cavity (2) and an outlet (3) for inspired air leading from a cavity to the lungs, means (4) for closing the inlet and the outlet, and a flow meter (8) for measuring the volume of flow of the inspired air. The means is arranged in the inlet for inspired air. The flow meter is arranged in the inlet for the inspired air or in the cavity and the flow meter is connected to a control unit. The device for fractionating expiration volume for the localization of diseases in respiratory tract, comprises an inlet (1) for inspired air that flows into a cavity (2) and an outlet (3) for inspired air leading from a cavity to the lungs, means (4) for closing the inlet and the outlet, and a flow meter (8) for measuring the volume of flow of the inspired air. The means is arranged in the inlet for inspired air. The flow meter is arranged in the inlet for the inspired air or in the cavity and the flow meter is connected to a control unit. A correlated theoretical value of a volume flow of the expired air can be calculated from the measured value of the volume flow of the inspired air by the control unit and/or a correlated value is stored and can be consulted in the control unit. The theoretical value of the volume flow of the expired air can be broken down into theoretical values of partial volume flow by the control unit, and the partial volume flow can be allocated to different zones of the respiratory tract. The means for closing the inlet for the inspired air and/or the means for closing the outlet for the expired air can be actuated or controlled by the control unit. The operational state such as close or open of the means can be adjusted corresponding to a defined partial volume flow of the expired air. Means for storing the partial volume stream are attached at the outlet. The inlet is closed in the operational state and the outlet is opened in operational state. The means are closing temporally one after another in the closed and opened state. The time span is adjustable between closed and opened operational state after standard of the length of the theoretical part volume streams is controllable by the control unit. A device for analyzing the volume material of the partial volume stream is arranged directly at the outlet. The device consists of ion mobility spectrometer, gas chromatography, high performance liquid chromatography, matrix-assisted laser desorption-time-of-flight, mass spectrometer, biosensor and electrochemical sensor. The means for storing the partial volume stream is lockable and is removable from the device. The means for closing the inlet and the outlet is selected from pneumatic valve, electromagnetic valve, and check valve. An independent claim is included for a method for fractionating expiration volume.