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An implantable permanent left ventricular assist system for man
Transactions - American Society for Artificial Internal Organs
|January 1, 1978
Summary
A new implantable, electrically powered left ventricular assist device (LVAS) using pulsed solenoid technology and a novel blood pump offers improved hemodynamics and durability for long-term use.
Area of Science:
- Biomedical Engineering
- Cardiovascular Devices
- Implantable Technology
Background:
- Current left ventricular assist devices (LVAS) face challenges with long-term implantation.
- Pulsed solenoid technology offers high efficiency for circulatory assist.
Purpose of the Study:
- To design and develop a novel, integrated, implantable, electrically powered LVAS for long-term human use.
- To improve hemodynamic performance, antithrombogenicity, and durability compared to existing devices.
Main Methods:
- Utilized high-efficiency pulsed solenoid technology for the energy converter.
- Designed a novel dual pusher-plate sac-type blood pump.
- Integrated the energy converter with the blood pump using a systems approach.
Main Results:
- A new implantable, electrically powered LVAS system has been designed.
- The system integrates a novel dual pusher-plate sac-type blood pump and a pivoted-armature dual-gap solenoid energy converter.
- The design addresses weaknesses of previous LVAS while retaining beneficial features.
Conclusions:
- The developed LVAS represents a significant advancement in implantable circulatory assist systems.
- The novel blood pump design offers advantages in hemodynamics, antithrombogenicity, and durability.
- This integrated system is suitable for long-term implantation in humans.