Researchers at UC Riverside have unveiled an air-powered computer that offers a novel approach to monitoring life-saving medical devices.
The technology eliminates the need for electronic sensors, providing a more reliable and cost-effective method of preventing blood clots and strokes.
The air-powered computer is about the size of a matchbox, but replaces multiple sensors and a computer, reducing the overall complexity of medical monitoring systems.
Air powered computer for device monitoring
This technology was developed by researchers at the University of California, Riversideand uses microfluidic valves to create an efficient and low-cost method for identifying faults in pneumatic systems, which are prevalent in several industries including healthcare, manufacturing and robotics.
Detailed in the Diary deviceThe device runs solely on air and issues warnings when devices malfunction. Pneumatic control systems are vital in many mechanical applications, from train brakes to medical devices such as intermittent pneumatic compression (IPC) devices, which are commonly used to prevent blood clots by periodically inflating leg sleeves that improve blood circulation. These devices are crucial in preventing serious diseases such as strokes and pulmonary embolisms.
Typically, IPC devices rely on electronic components to operate and monitor their performance. However, electronics can make these devices expensive and less reliable under certain conditions. The new air-actuated device replaces these electronic elements, making IPC devices safer, more affordable, and easier to maintain.
William Grover, an associate professor of bioengineering at UC Riverside and one of the study's authors, explained that the computer uses pneumatic logic to operate in a way similar to how electronic circuits work.
The device counts binary messages (ones and zeros) using the pressure differences of the air flowing through 21 small valves. This system ensures that the IPC machine is functioning properly. If the computer detects an error, it beeps to indicate that the device requires immediate attention.
In a demonstration video, Grover and his students intentionally damaged an IPC device to demonstrate the computer's effectiveness. Within seconds, the whistle blew, alerting them to the malfunction.
The potential applications of air-powered computing extend beyond medical device monitoring. Grover envisions using the technology in other hazardous environments where traditional electronic devices might pose risks.
For example, he’s interested in developing air-powered robots that can work inside grain silos. Grover said, “A notable number of deaths occur because the grain moves around and the person gets trapped. A robot could do this job instead of a person. However, these silos are explosive and a single electrical spark could blow up a silo, so an electronic robot may not be the best choice… I want to create an air-powered robot that can work in this explosive environment, not create sparks, and get humans out of harm’s way.”
