Total Artificial Heart Freedom Driver
for SynCardia Systems
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Systems Engineering & Risk Management
Embedded Software Development
User Interface Development
The Freedom Driver has supported more than 350 patients worldwide, accounting for more than 240 patient-years of support. Working with Sunrise brought better system performance against reliability and patient quality of life metrics for both hypertensive and hypotensive patients.
Next-generation heart monitoring for mobility and freedom.
Sunrise Labs partnered with our SynCardia Systems to develop a more lightweight but robust heart implant driver that can maintain reliable user support.
SynCardia engaged Sunrise to make the next generation driver, for their implantable Total Artificial Heart (TAH-t) used by end stage heart failure patients waiting for a transplant. The next generation of the driver needed to be smarter, smaller, lighter, more reliable, and quieter with longer battery life and a more controllable pressure profile. This patient-worn backpack delivers a specific cyclic pressurized air profile through cannulae to drive the TAH-t and pump blood through a patient’s circulatory system.
An improved driver generation with patient usability in mind.
The next-generation driver needed to be improved across all facets of the device. This included physical specifications for a quieter and lighter device as well as digital with touchscreen GUI and robust battery swapping mechanisms.
We architected a highly robust class-III system with a custom pneumatic pump directly driven by a DC motor with triply redundant power. Safety was a major priority and required multiple processors to control the system processes, monitoring, and alarming.
The team invented a low-friction piston seal that runs continuously for years with no oil and no maintenance.
The Driver is worn as a backpack by the patient to deliver a specific cyclic pressurized air profile through cannulae to drive the TAH-t. The TAH-t then pumps blood through a patient’s circulatory system. The power supply and pump are integrated into the Driver unit, allowing patients to leave the hospital setting and maintain a mobile lifestyle.
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