Patent ID: 6629469
Filing Date: 2003-10-07
Classification: A61B,G01R,G09B

Abstract:
An apparatus for simulating a dynamic cardiac ventricle, comprising:two concentrically-disposed, fluid-tight, flexible membranes, a closed space defined between the walls of the membranes; a pump operatively connected to the inner membrane for reciprocally delivering a volume of fluid to the inner membrane to inflate and deflate both membranes in simulating systole and diastole of a heart; a medium disposed within the closed space defined between the walls of the membranes for maintaining a uniform distance between the walls of the membranes during inflation and deflation, the membranes being open-ended ellipsoids of different diameters; a rigid fluid tube operatively connecting the pump and the inner membrane, the inner membrane having sufficient diameter to fit over an end of the tube; a collar for mounting around the joined ends of the tube and inner membrane, the outer membrane having sufficient diameter to fit over the collar; an o-ring for mounting around the joined collar and outer membrane, the collar having a circumferential groove for receiving the o-ring; and a clamp for mounting around the joined ends of the collar and outer membrane.