A system for hemodynamic simulation comprises a vessel having properties
of a blood vessel, a reservoir containing a quantity of fluid, tubing
connecting the vessel and reservoir, and at least one pump for
circulating the fluid within the system. Fluid can be tissue culture
medium or blood analog fluid, and the vessel may include mammalian cells
attached to its inside. A drive system, comprising two reciprocating
drive shafts that are coupled by a cam, enables the uncoupling of
pulsatile flow and pulsatile pressure to provide independent control over
wall shear stress and circumferential strain. The shaft drives two pumps
that are 180 degrees out-of-phase and are connected upstream and
downstream of the vessel, and effect this uncoupling.