Fluke Biomedical medSim 300B - Manual (Page 101)

Option 1
Overview
4
4-3
Overview
Option 1 enables the medSim 300B to generate waveforms that simulate:
• Cardiac catheterization (by single and dual lumen catheters).
• Fetal/maternal ECG with intrauterine pressure.
• Intra-aortic balloon pump augmentation.
Note
These waveforms are useful when you are evaluating cardiac
catheterization systems, fetal monitors, and intra-aortic balloon pumps.
Cardiac Catheterization
The medSim 300B can simulate systolic pressure gradients (measured with single and
dual lumen cardiac catheters) across the aortic, pulmonary and mitral valves.
Note
To evaluate cardiac catheterization systems, blood pressure cables are
needed. Refer to the current Fluke Biomedical Price List for availability,
part number information and price.
The medSim 300B uses the following default (normal) values for medSim 300B outputs
BP1, BP2, BP3 and BP4 when beginning cardiac valve simulation:
Channel Description Pressure
BP1 Left ventricular (LV) 120/0
BP2 Arterial (ART) 120/80
BP3 Pulmonary arterial (PA) 25/10
BP4 Right ventricular (RV) 25/0
Pressure Gradients across Aortic and Pulmonary Valves
In a normal heart, systolic pressures on both sides of both the aortic valve and the
pulmonary valve (ventricular and arterial systolic pressures) are about the same. A
gradient, or difference, in these pressures indicates an abnormal valve.
The medSim 300B simulates aortic valve and pulmonary valve defects by increasing
ventricular systolic pressure 5 % to 50 % above a constant arterial systolic pressure.
The drawings that follow simulate blood pressure relationships indicating:
• A normal aortic valve
• A defective aortic valve
• A normal pulmonary valve
• A defective pulmonary valve