6-13
10. [Tslope]: Time of pressure rising
11. [Apnea Ventilation]: Switch for apnea ventilation
12. [TVapnea] or [ΔPapnea]: Tidal volume or inspiration pressure in apnea ventilation
cycle
13. [fapnea]: Frequency of apnea ventilation
14. [Apnea Tinsp]: Inspiration time of apnea ventilation
In V-SIMV mode, you can set the following sigh function parameters as required:
1. [Sigh]: Switch for turning on sigh function
2. [Interval]: Time interval between two sighs
3. [Cycles Sigh]: Number of sigh cycles
4. [△int.PEEP]: PEEP added in sigh cycle
6.5.6 P-SIMV
P-SIMV is pressure-synchronized intermittent mandatory ventilation mode. It provides the
minimum number of mandatory breaths based on the preset intermittent mandatory
ventilation frequency. Mandatory ventilation mode is pressure mode (P-A/C mode). If patient
triggers within the trigger window, ventilator delivers mandatory pressure control breath once.
Mandatory pressure control breath is also delivered once if it is not triggered at the end of
trigger window. Spontaneous breathing or pressure support breathing is supported outside the
trigger window.
Trigger window is a period of buffer time for patient’s synchronization inspiration. The
period is in the later expiration phase of the mechanical ventilation. The trigger window is 5 s
long for adult and 1.5 s long for pediatric while simultaneously it cannot exceed the
expiratory time.
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