Permanent Circulatory Support Systems at The Pennsylvania State University

William J. Weiss, Gerson Rosenberg, Alan J. Snyder, Thomas J. Cleary, Roger P. Gaumond, David B. Geselowitz, William S. Pierce

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


Permanent circulatory support systems are required for patients in whom myocardial damage is irreversible and cardiac transplantation is not possible. Two systems are described which provide long term circulatory support: the left ventricular assist system and the total artificial heart. These systems are based on the design of a pusher plate actuated blood pump, driven by a small brushless dc electric motor and rollerscrew driver. An implantable motor controller maintains suitable physiologic flow rates for both systems and controls left-right balance in the total artificial heart. Other parts of the system include an intra-thoracic compliance chamber, transcutaneous energy and data transmission system, and internal and external batteries.

Original languageEnglish (US)
Pages (from-to)138-145
Number of pages8
JournalIEEE Transactions on Biomedical Engineering
Issue number2
StatePublished - Feb 1990

All Science Journal Classification (ASJC) codes

  • Biomedical Engineering


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