Pumps for Human Blood Pressure Simulation - Microsurgery: Advances, Simulations, and Applications - page 205

Chapter 6
Pumps for Human Blood Pressure
Simulation
Panza [1] deines normal human systolic pressure as less than
120 mmHg and normal diastolic pressure less than 70 mmHg. De
Bruyne et al. [2] measured coronary diastolic pressure at 87.5
mmHg, and a systolic pressure of 152.5 mmHg at 1.81 Hz. Ebenal et
al. [3] measured aortic systolic pressure at 120 mmHg and diastolic
pressure at 50 mmHg at 1.3 Hz. Regularly a local minimum above
50 mmHg must be recreated and pressure variation adjusted to
realistically replicate human blood pressure waves. The simulation
of human blood pressure is desirable to recreate a realistic motion of
the silicone vasculature in the endovascular evaluator (EVE) and also
for interacting with catheters, guide wires and other intravascular
tools inserted within the silicone vasculature during the simulation.
Even more the visualization of the stress produced by human blood
pressure based on photoelastic effect is desirable to evaluate the
natural conditions of stress in the vasculature membrane models.
For that purpose homogeneous urethane elastomer models cannot
be used, as they have a plastic deformation for the pressure ranges
below 200 mmHg.
A piston pump was initially used to circulate luids trough the
vasculature of EVE. The piston pump creates a variable low but
cannot sustain the pressure and low above zero during a complete