Medin medinCNO, Руководство пользователя

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medin Medical Innovations GmbH
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OP_medinCNO EN
Rev 12 Stand 06.03.2019
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the green line corresponds to the expiration pause and the orange arrow indicates the apnoea time. None of
these lines is displayed in actual operation.
Warning:
Significant amounts of condensate formation in the tube system must be avoided since, as a result, the
respiratory signal in the CPAP pressure curve will be obscured, detection of inspiration and apnoea phases may
be prevented, and the triggering of pushes may be influenced.
Inspiration : Figure 5-4 a
The setting in this field determines both the duration of the push which is automatically triggered by the
medinCNO
®
and the duration of the push triggered manually. It can be set to a time between 200 milliseconds
and 2 seconds.
Expiration pause (Exp – Pause): Figure 5-4 b
The expiration pause time determines the length of time after a push during which another push cannot be
automatically triggered. The medinCNO ® stops a push being triggered after each automatically triggered push,
even if the pressure again falls below the trigger threshold for a synchronous push. The purpose of this is to
restrict the number of pushes and allow the patient to exhale undisturbed. In the example shown in Figure 5-4,
the selected expiration pause after the first push was shown in green. The effect of this is to stop a push being
triggered even though the CPAP pressure falls below the trigger threshold again a short time after the push.
The next push is not produced until after the end of the expiration pause .
The expiration pause time determines the maximum push frequency ( Tr. rate max ), as the longer the time
selected, the fewer pushes can be triggered automatically by the medinCNO ® . In addition, the minimum
adjustable expiration pause is dependent on the duration of the inspiration time.
The expiration pause does not affect backup pushes or manually triggered pushes. Manual pushes can still also
be triggered in this period by pressing button d in Figure 5-2 .
The sensitivity cannot be switched off. This is only possible in the Apnoea CPAP mode in the particular case of
NIPPV.
Tip
If a value is chosen as expiration pause (Exp – Pause) which is larger than the set apnoea time , the expiration
pause prevails and the push is not triggered until it has ended. That is, in the case of an expiration pause of,
e.g., five seconds and an apnoea time of three seconds, the push is triggered after five seconds. Since this
setting can also negatively influence the trigger, it is recommended to always set the time of the expiration
pause to be less than the apnoea time.
The medinCNO
®
only emits manual or backup pushes for the duration of the expiration pause (Exp – Pause) ,
even after a push triggered by apnoea time .
If respiration that exceeds the trigger threshold takes place after a push within the expiration pause (Exp –
Pause) during which pushes cannot take place, no synchronous push is triggered but this respiration is taken
into account when determining apnoea, and consequently the
apnoea time
waiting time only starts
subsequently.
Apnoea time: Figure 5-4 c