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Updated: Jun 1, 2026
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Cardiac Muscle Cell-based Actuator and Self-stabilizing Biorobot - Part 2
Published on: May 9, 2017
Potential mechanisms for muscle-powered cardiac support.
1Cardiovascular Institute, Allegheny General Hospital, Pittsburgh, PA 15212, USA. trumble@wpahs.org
Artificial Organs
|May 24, 2011
Summary
This study explores using skeletal muscle power for tether-free cardiac assistance via a mechanical prosthesis. Six novel mechanisms are presented to deliver this hydraulic energy to the bloodstream, minimizing complications.
Area of Science:
- Biomedical Engineering
- Cardiovascular Devices
- Biomechanical Engineering
Background:
- Ventricular assist devices (VADs) offer long-term circulatory support.
- Skeletal muscle actuation presents a promising approach for tether-free VADs, avoiding percutaneous drivelines.
- Existing VADs often have complications due to blood-contacting surfaces.
Purpose of the Study:
- To present novel mechanisms for delivering biomechanical energy from skeletal muscle to the bloodstream for VAD function.
- To develop a system that harnesses the power of the latissimus dorsi muscle for hydraulic energy transmission.
- To minimize blood-contacting surfaces in VAD designs to reduce thromboembolic complications.
Main Methods:
- Development of a mechanical prosthesis to collect energy from the latissimus dorsi muscle.
- Design and conceptualization of six prospective mechanisms for hydraulic energy delivery to the bloodstream.
- Evaluation of mechanisms for their potential to eliminate blood-contacting surfaces.
Main Results:
- A mechanical prosthesis capable of collecting and transmitting skeletal muscle energy as hydraulic power was developed.
- Six distinct mechanisms were proposed for blood pumping applications.
- Five of the proposed mechanisms successfully eliminate direct blood-contacting surfaces.
Conclusions:
- Biomechanical actuation using skeletal muscle is a viable strategy for advanced VADs.
- The presented mechanisms offer potential solutions for efficient and safer VAD energy delivery.
- Minimizing blood-contacting surfaces is crucial for reducing VAD-related thromboembolic complications.
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