A totally implantable ventricular assist system (VAS), including a dri
ve system and a percutaneous electric energy transmission system, was
developed and evaluated in acute animal experiments using adult goats.
This newly designed VAS mainly consists of a vibrating tube, coils, m
agnets, and a jelly-fish valve as the outlet valve. For energy transmi
ssion, a new implantable transmitter with a plain weave structure was
proposed as a noncontacting transform by using the spinal amorphous ma
gnetic fibers. The fluid mechanical and hemodynamic properties and the
efficiency of the energy transmission system were evaluated in acute
animal experiments using healthy adult goats. This vibrating electroma
gnetic artificial heart (AH) could generate more than 10 L/min as outp
ut volume, with 10 Hz vibration using 20 volts as supplied voltage. Th
e total efficiency of the percutaneous energy transmission system was
76%, and temperature increases were within the acceptable range, sugge
sting the usefulness of our newly developed implantable VAS.