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[A Comparative Study on the Damage Rate of Flow Rate Trigger and Pressure Trigger During the Process of Mechanical
Objective:
To investigate the damage rate of the air flow sensor caused by the flow velocity and pressure in the process of mechanical ventilation and spray.
Methods:
12 wire type flow sensor were randomly divided into flow rate trigger group and pressure trigger group. Every time sprayed 15 minutes, then removed flow sensor, a total number of times gathered statistics when flow sensor failed, statistical analysis was performed using SPSS software.
Results:
The flow rate trigger group was 410.83±29.8 times and was significantly less than that of the pressure trigger group of 955.67±84.54 times, the difference was statistically significant (P<0.05).
Conclusions:
The flow rate trigger during the process of mechanical ventilation and spray was significantly increased the damage rate of output flow sensor comparing with pressure trigger.
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