Application of the moving-actuator type pump as a ventricular assist device: In vitro and in vivo studies

H. S. Lee, Y. R. Rho, C. Y. Park, C. M. Hwang, W. G. Kim, K. Sun, M. J. Choi, K. K. Lee, J. T. Cheong, E. B. Shim, Byoung Goo Min

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

A moving actuator type pump has been developed as a multifunctional Korean artificial heart (AnyHeart™). The pump consists of a moving actuator as an energy converter, right and left sacs, polymer (or mechanical) valves, and a rigid polyurethane housing. The actuator containing a brushless DC motor moves back and forth on an epicyclical gear train to produce a pendular motion, which compresses both sacs alternately. Of its versatile functions of ventricular assist device and total artificial heart use, we have evaluated the system performance as a single or biventricular assist device through in vitro and in vivo experiments. Pump performance and anatomical feasibility were tested using various animals of different sizes. In the case of single ventricular assist device (VAD) use, one of the sacs remained empty and a mini-compliance chamber was attached to either an outflow or inflow port of the unused sac. The in vitro and in vivo studies show acceptable performance and pump behavior. Further extensive study is required to proceed to human application.

Original languageEnglish
Pages (from-to)556-561
Number of pages6
JournalInternational Journal of Artificial Organs
Volume25
Issue number6
DOIs
Publication statusPublished - 2002
Externally publishedYes

Keywords

  • Animal experiment
  • AnyHeart™
  • Artificial heart
  • Compliance chamber
  • Ventricular assist device

ASJC Scopus subject areas

  • Bioengineering
  • Medicine (miscellaneous)
  • Biomaterials
  • Biomedical Engineering

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