ResMed Fitness Electronics S9 VPAP Tx 用户手册

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Leak

9 9 9 9 9 9 9 9 9 9 Estimate of the total rate of 

air escaping due to mouth and 

unintentional mask leaks, expressed in  

L/min (5-breath moving average). 

Minute Ventilation (MV)

9 9 9 9 9 9 9 9 9 9 Volume of air breathed in, or out within 

any 60-second period, expressed in 

L/min (5-breath moving average).

Target Minute 

Ventilation (TgMv)

9 9 Minute ventilation the device is 

attempting to achieve. Pressure support 

increases if the minute ventilation falls 

below the target,and decreases if it 

goes above the target.

Respiratory rate (RR)

9 9 9 9 9 9 9 9 9 9 Frequency of breathing, expressed 

as the number of breaths per minute 

(5-breath moving average).

Tidal volume (Vt)

9 9 9 9 9 9 9 9 9 9 Volume of air inspired or expired in one 

respiratory cycle (breath), expressed in 

mL (5-breath moving average). 

Pressure support (PS)

9 9 9 9 9 9 9 9 Difference between IPAP and EPAP.

Alveolar minute 

ventilation (Va)

9

Minute volume without dead space, 

expressed in L/min.

Target alveloar 

ventilation (TgVa)

9

Target alveolar minute ventilation that 

determines the amount of pressure 

support required, expressed in  

L/min.

Ti

9 9 9 9 9 9 9 9 Duration of inspiration (ie, the 

respiratory flow into the lungs), 

expressed in seconds (5-breath moving 

average). 

I:E

9 9 9 9 9 9 9 9

Inspiration to expiration ratio measured 

by the device (5-breath moving 

average).

Ti Max

9 9 9

9

Maximum inspiration time in seconds

Ti Min

9 9 9

9

Minimum inspiration time in seconds.

% Spontaneous 

Triggering or Cycling 

(%Spont Trig or  

%Spont Cyc)

9 9 9

9 9

Percentage of breaths that are 

spontaneously triggered or cycled 

(average of the last 20 breaths).
In PAC mode, there is no spontaneous 

cycling.

Trigger/Cycle indicators 

(Timed, Ti Max or 

Ti Min)

9 9 9 9 9 9

Indicates a patient or device 

triggered/cycled breath. In ST mode, 

Timed indicator is left blank if it is a 

spontaneous breath.