| 摘要 |
A process and system are provided for clearing modes of operation of a medical engineering device, especially modes of operation on a respirator ( 1 ), such as IMV (Intermittent Mandatory Ventilation, CPAP (Continuous Positive Airway Pressure) or HFV (High-Frequency Ventilation). The clearing is performed with an external electronic, optical or magnetic storage medium, e.g., a chip card ( 2 ), on which data that determine the available modes of operation and optionally the duration of their availability are present. The data on the chip card ( 2 ) are read by a writing and reading unit ( 3 ) of the respirator ( 1 ). The data may be coded, the duration of availability of a mode of respiration may be controlled by keeping a time log ( 9 ) on the chip card, and the corresponding time periods are debited from the time log ( 9 ) each time a certain mode of operation is used.
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