Dräger Babylog VN500 Instructions For Use Manual page 242

Description
The maximum number of mandatory breaths is de-
termined by the respiratory rate RR. However, this
number is only provided when there is insufficient
spontaneous breathing or an apnea is present.
Pressure support
During spontaneous breathing on PEEP level, the
patient can be supported with PS. Every inspiratory
effort by the patient on PEEP level that meets the
trigger criteria triggers a pressure-supported
breath. By setting the trigger level, the patient's in-
spiratory efforts are synchronized. The time, num-
ber, and duration of pressure-supported breaths is
determined by the patient's spontaneous breathing.
As in all pressure-controlled ventilation modes, the
tidal volume supplied depends on the difference in
pressure "Psupp – PEEP", the lung mechanics (re-
sistance and compliance), and the patient's respira-
tory drive. The pressure rise from the lower pres-
sure level PEEP to the upper pressure level Psupp
is determined by the Slope or Insp. flow setting.
The start setting can be configured on the page
System setup > Ventilation > Start settings >
Pressures, O , I:E.
2
The pressure support is terminated as soon as the
inspiratory flow falls below 15 % of the maximum
inspiratory flow.
The pressure support is also terminated as soon as
the duration of the support has reached the maxi-
mum inspiratory time. For intubated patients, the
maximum inspiratory time in the Ped. pat. patient
category is limited to 1.5 seconds. In the Neo. pa-
tient category, the maximum inspiratory time is lim-
ited to 130 % of Ti, maximum 1.5 seconds.
242
Instructions for Use Infinity Acute Care System – Babylog VN500 SW 2.n