Summary
The ventricular assist energy system being developed by Nimbus to drive and control the Cleveland Clinic intrathoracic blood pump is described. In the longest in vivo test in the calf, the ventricular assist system was implanted for a period of 6 1/2 months when the experiment was electively terminated. For most of the experimental period, an implanted variable volume device and transcutaneous transmission energy system was utilized. The efficiency of the energy converter in the test was within 2% of the pretest value. Energy converter endurance testing showed that with the exception of gear pump bearings, which exhibited 4 μm of wear after 5 years, none of the components showed significant wear. Details of clinical trials currently underway are described.
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© 1988 Springer Japan
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Moise, J.C. (1988). Energy systems for chronic circulatory support. In: Akutsu, T., et al. Artificial Heart 2. Springer, Tokyo. https://doi.org/10.1007/978-4-431-65964-8_26
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DOI: https://doi.org/10.1007/978-4-431-65964-8_26
Publisher Name: Springer, Tokyo
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