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Related Experiment Videos

Recent improvements in a completely implanted total artificial heart

W J Weiss1, G Rosenberg, A J Snyder

  • 1Department of Surgery, Pennsylvania State University, Hershey 17055, USA.

ASAIO Journal (American Society for Artificial Internal Organs : 1992)
|September 1, 1996
PubMed
Summary
This summary is machine-generated.

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The total artificial heart has been redesigned for improved performance and reliability, with enhanced electronics and faster battery charging. Formal durability testing is underway for this advanced medical device.

Area of Science:

  • Biomedical Engineering
  • Medical Device Development

Background:

  • The total artificial heart (TAH) is a critical medical device for end-stage heart failure.
  • Previous TAH designs faced challenges in reliability, manufacturability, and performance.

Purpose of the Study:

  • To detail design improvements in a TAH developed by Penn State and 3M Health Care.
  • To enhance TAH reliability, manufacturability, implantability, and overall performance.

Main Methods:

  • Redesign of the implanted electronics canister with a titanium shell and hermetic connectors.
  • Implementation of a new inductive telemetry system and increased energy transmission frequency.
  • Modification of the energy converter with a new motor, sensors, and high flex life cables.

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Main Results:

  • Reduced battery recharge time from 14 hours to 4 hours.
  • Upgraded energy transmission system operating frequency from 160 kHz to 200 kHz.
  • Incorporation of electromagnetic interference filters and a more efficient control mode.

Conclusions:

  • Significant design improvements are nearing completion for the TAH.
  • The redesigned TAH is progressing towards formal durability testing.
  • Enhanced manufacturing documentation and quality systems are being implemented.