Abstract
In order to miniaturize an artificial herat, we have been developing a Vibrating Electro-Magnetic Pump(VEMP) which has an unique structure and fluid mechanism. The fluid mechanical characteristics of the VEMP were analyzed by using mock circulatory loop. The fundamental vibration, which was modulated with the vibration of the another frequency, could generated the particular complex pressure and flow patterns. It was observed that the VEMP could ejected the sufficient flow volume against the systemic pressure in acute animal experiments. The values of free Hb after the in vitro and in vivo experiments were remained within the satisfactory limits of value. In conclusion the VEMP could be available to the clinical use for the artificial heart in spite of the necessity of further improvement.
