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Progress with the HeartSaver Ventricular Assist Device.
T Mussivand1, P J Hendry, R G Masters
1Cardiovascular Devices Division, University of Ottawa Heart Institute and WorldHeart Corporation, Ontario, Canada. tofym@heartinst.on.ca
The Annals of Thoracic Surgery
|September 4, 1999
Summary
Researchers are developing the HeartSaver VAD, a fully implantable device for long-term circulatory support. This innovative ventricular assist device (VAD) aims to improve patient quality of life with remote monitoring and control capabilities.
Area of Science:
- Biomedical Engineering
- Cardiovascular Devices
- Implantable Technology
Background:
- Ventricular assist devices (VADs) offer effective short- and long-term circulatory support.
- Ongoing development focuses on permanent VADs to enhance patient quality of life.
- A dedicated program since 1990 aims to create a totally implantable, permanent VAD.
Purpose of the Study:
- To develop a totally implantable, intrathoracic ventricular assist device (VAD).
- To eliminate percutaneous connections for enhanced patient mobility and reduced infection risk.
- To enable remote monitoring and control for flexible patient follow-up.
Main Methods:
- An electrohydraulically actuated VAD integrating pump, volume displacement chamber, energy converter, and electronics.
- Utilizing a transcutaneous energy transfer system for wireless power.
- Remote communication for monitoring and control functions.
Main Results:
- The HeartSaver VAD is a compact, integrated unit.
- Prototypes demonstrated satisfactory performance in vitro and in vivo.
- The device meets goals for intrathoracic placement, total implantation, and remote communication.
Conclusions:
- HeartSaver VAD prototypes successfully met design objectives under testing.
- Further development and testing are ongoing prior to clinical application.
- The device shows promise for advanced, long-term circulatory support.
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