Instructions for use
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Atlan A300, A300 XL, A350, A350 XL SW 1.0n
91
Operation
Measured gas values and waveforms such as the CO
2
waveform are determined
on the basis of the composition of the sample gas. The composition of the sample
gas is affected by many factors and their interactions, especially in patients with low
body weight. This may result in biased measured values or waveforms and thus to
misinterpretations. As a result, the patient could be put at risk.
The following factors affect the sample gas measurement:
– Dead space
– Airway resistance of the patient
– Compliance of the patient
– Type of surgical procedure
– Gas sampling site
– Breathing circuit, filter, sample line, tube
– Ventilation settings and the resulting ventilation
– Leakage
– Spontaneous breathing
– Cardiogenic oscillations
– I:E ratio and the respiratory rate
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Adhere to the following:
– Do not make therapeutic decisions based solely on individual measured
values or parameters.
– If possible, minimize the effects of the factors described above, e.g., take the
sample gas from a gas sampling site close to the patient, minimize leakage,
adjust the ventilation settings.
– The measured values are not meaningful during the warm-up time of the
patient-gas measurement module.
Data (e.g., measured values, alarms) which the anesthesia machine transfers to
other systems such as patient monitors or EMR systems may be displayed there
incompletely or incorrectly and may thus put the patient at risk. Consequently, the
data are intended to be used only for information purposes.
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Do not use data displayed on other devices for patient monitoring or device
monitoring.
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Do not use data displayed on other devices for diagnostic or therapeutic
decisions.
7.1.3 Risk
of
infection
The circuit plug is color marked. This marking indicates that the circuit plug could
transmit pathogens between patients. If a used Y-piece or filter is fitted to the circuit
plug, and then later a reprocessed component is fitted (e.g., during a leakage test),
the new component can become contaminated.
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Only fit reprocessed components to the circuit plug.
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Do not plug already used hoses with attached filters or Y-pieces onto the circuit
plug but instead hang them over the handles on the left-hand side of the device.
