AIMEDIC Publications

Application of the Moving-Actuator Type Pump as a Ventricular Assist Device: In vitro and in Vivo Studies

Category

Pub

Date

2002-06-01

Source

The International Journal of Artificial Organs

A moving actuator type pump has been developed as a multifunctional Korean artificial heart (AnyHeart™). The pump consists of a moving actuator as an energy converter, right and left sacs, polymer (or mechanical) valves, and a rigid polyurethane housing. The actuator containing a brushless DC motor moves back and forth on an epicyclical gear train to produce a pendular motion, which compresses both sacs alternately. Of its versatile functions of ventricular assist device and total artificial heart use, we have evaluated the system performance as a single or biventricular assist device through in vitro and in vivo experiments. Pump performance and anatomical feasibility were tested using various animals of different sizes. In the case of single ventricular assist device (VAD) use, one of the sacs remained empty and a mini-compliance chamber was attached to either an outflow or inflow port of the unused sac. The …

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