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The E4T Electric Powered Total Artificial Heart (TAH)
Author(s) -
Smith W. A.,
Hete B. F.,
Kiraly R. J.,
Fujimoto L. K.,
Jacobs G. B.,
Ishikawa M.,
Butler K.,
Nosé Y.
Publication year - 1988
Publication title -
artificial organs
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.684
H-Index - 76
eISSN - 1525-1594
pISSN - 0160-564X
DOI - 10.1111/j.1525-1594.1988.tb02795.x
Subject(s) - artificial heart , actuator , transformer , mechanical energy , engineering , electrical engineering , battery (electricity) , computer science , mechanical engineering , automotive engineering , voltage , medicine , physics , surgery , power (physics) , quantum mechanics
Abstract: The E4T is a totally implantable total artificial heart (TAH) resulting from many years of research work at the Cleveland Clinic Foundation (CCF) and Nimbus, Inc. It consists of four implanted subsystems: the pumping unit, the variable volume device, the transcutaneous transformer, and the internal battery. The pumping unit consists of two CCF biolized pusher plate pumps, and a Nimbus electrohydraulic energy converter. The control logic is based on a left master, alternating beating scheme. The timing difference between end right eject and end left fill determines the actuator speed adjustment. The pumps free fill, so left‐right flow differences are easily accommodated. A prototype system has been built and begun testing to validate and refine the design details.