Fluke Biomedical ProSim 8 Series, Руководство пользователя

Страница: 48 / 112

ProSim 8
Users Manual
36
Aortic Valve Catheterization Simulation
The aortic valve controls flow from the left ventricle (LV) to the aorta (atrial
pressure) and prevents flow in the reverse direction. Both IBP channels are set
the Arterial 120/80. IBP channel 1 stays at arterial 120/80 for reference
throughout the simulation.
1. Push the
Insert softkey to simulate the insertion of IBP channel 2 catheter
into the left ventricle at 120/0. Figure 21 shows the screen for the aortic valve
catheterization simulation.
glh054.bmp
Figure 21. Aortic Valve Catheterization Simulation Screen
For a normal valve, when the heart beat starts, the LV pressure increases to
80 mmHg. Then, as the valve opens, both pressures increase to the systolic
peak. Next, the pressures fall until the valve opens. The LV pressure goes
back down, but the arterial stays at 80 mmHg.
2. Push the Increase Pressure or Decrease Pressure to simulate a bad aortic
valve. There are six pressure values between 120 mmHg and 180 mmHg.
Each push of the increase softkey sets the left ventricle pressure to
126 mmHg (+5 %), 132 mmHg (+10 %), 138 mmHg (+15 %), 144 mmHg
(+20 %), and 180 mmHg (+50 %). Each push of the decrease softkey sets
the pressure down from 180 mmHg to 120 mmHg with the same pressure
steps.
3. Push the Pullback softkey to simulate the pull back of the IBP channel 2
catheter to the left ventricle.