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Related Experiment Videos

Artificial myocardium with an artificial baroreflex system using nano technology.

Tomoyuki Yambe1, Yasuyuki Shiraishi, Makoto Yoshizawa

  • 1Department of Medical Engineering and Cardiology, Institute of Development, Aging and Cancer, Tohoku University, 4-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan. yambe@idac.tohoku.ac.jp

Biomedicine & Pharmacotherapy = Biomedecine & Pharmacotherapie
|October 24, 2003
PubMed
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Researchers are developing an artificial myocardium to assist heart failure patients. This innovative device aims to improve quality of life by using external electromagnetic energy, unlike current systems.

Area of Science:

  • Biomedical Engineering
  • Cardiovascular Research
  • Materials Science

Background:

  • Congestive heart failure necessitates improved cardiac support.
  • Current ventricular assist devices impact patient quality of life.
  • Artificial organs need to integrate with the body's physiological demands.

Purpose of the Study:

  • To develop an artificial myocardium for heart failure patients.
  • To create a less invasive and more efficient cardiac assist device.
  • To enable artificial hearts to adapt to physiological demands.

Main Methods:

  • Utilizing a ball screw type electromagnetic motor for artificial myocardium development.
  • Employing shape memory alloy and Peltier elements for system miniaturization and cooling.

Related Experiment Videos

  • Implementing transcutaneous energy transmission and magnetic shielding for external power and efficiency.
  • Developing a resistance-based control algorithm simulating the baroreflex system.

    • Main Results:

    • Achieved a drive speed comparable to a natural heartbeat.
    • Solved cooling speed issues using Peltier elements.
    • Demonstrated potential for improved patient quality of life through external energy transmission.
    • Developed a control algorithm for adaptive cardiac output.

    Conclusions:

    • The artificial myocardium shows promise for treating heart failure.
    • External energy systems and adaptive controls enhance artificial heart functionality.
    • Ongoing development aims for an "intelligent artificial myocardium" with nano-level sensing capabilities.