| 摘要 |
<p>The invention relates to a device for fractionating expiration volume. Said device comprises an inlet for inspired air (1) that flows into a cavity (2) and an outlet for inspired air (3) leading from a cavity to the lungs. Means for closing the inlet (4) are arranged in the inlet for inspired air (1), and the cavity (2) comprises at an inlet for the inspired air (5) and at least one outlet for the expired air (6). Means for closing the outlet (7a, 7b) are arranged in the outlet for the expired air (6), and at least one flow meter (8) for measuring the volume of flow of the inspired air is arranged in the inlet for the inspired air (1) or in the cavity (2) and the flow meter (8) is connected to a control unit (9). 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 means of the control unit (9) and/or a correlated value is stored (9) and can be consulted in the control unit (9). The theoretical value of the volume flow of the expired air can be broken down into theoretical values of partial volume flows of the volume flow by means of the control unit (9), and the partial volume flows can be allocated to different zones of the respiratory tract. The means for closing the inlet (4) for the inspired air and/or the means for closing the outlet or the outlets (7a, 7b) for the expired air can be actuated or controlled by the control unit (9). The operational state ' closed' (a) or 'open' of the means for closing the inlet for inspired air (4) and/or means for closing the outlet or outlets for the expired air (7a, 7b) can be adjusted corresponding to a defined partial volume flow of the volume flow of the expired air. The invention also relates to a method and to the use thereof.</p> |
