An autoregulation unit for enabling adaptive control of sensorized left ventricular assist device

Area of Science:

• Biomedical Engineering
• Cardiovascular Technology
• Medical Devices

Background:

• Existing left ventricular assist devices (LVADs) lack adaptive speed control for patient daily activities.
• Current VAD systems suffer from limited sensorization, bulkiness, and inadequate computational power.
• There is a need for integrated solutions to improve VAD functionality and patient quality of life.

Purpose of the Study:

• To present an innovative integrated and portable device, the ARU (Adaptive Regulation Unit).
• To enhance the applicability of VADs as a long-term solution for heart failure (HF).
• To enable sensorized VADs with data storage, continuous monitoring, and autoregulation capabilities.

Main Methods:

• Development of the ARU, an universal device for VAD enhancement.
• Integration of the ARU with a sensorized VAD platform for bench testing.
• Wireless interfacing of the ARU with wearable devices for remote monitoring.

Main Results:

• Successful demonstration of the ARU's feasibility on a benchtop sensorized VAD platform.
• Successful testing of local and remote VAD speed adjustments.
• Validation of autoregulation algorithms with a rapid 1-second response time.

Conclusions:

• The ARU represents a significant advancement in VAD technology for heart failure management.
• The device enables adaptive VAD operation tailored to patient physiological changes during daily activities.
• The ARU system offers a promising pathway for improved long-term VAD therapy and remote patient care.