Novel rubbery cardiac patch can monitor, treat heart disease

New York, Nov 4 : Move over smart watches as researchers led by a mechanical engineer from the University of Houston have developed a patch made from fully rubbery electronics that can be placed directly on the heart to collect electrophysiological activity, temperature, heartbeat and other indicators — all at the same time.
Pacemakers and other implantable cardiac devices have had one of two drawbacks — they are made with rigid materials that can’t move to accommodate a beating heart or they are made from soft materials that can collect only a limited amount of information.
The novel device marks the first time bioelectronics have been developed based on fully rubbery electronic materials that are compatible with heart tissue, allowing the device to solve the limitations of previous cardiac implants, which are mainly made out of rigid electronic materials.
“For people who have heart arrhythmia or a heart attack, you need to quickly identify the problem. This device can do that,” said Cunjiang Yu, associate professor of mechanical engineering at University of Houston.
In addition to the ability to simultaneously collect information from multiple locations on the heart, the device can harvest energy from the heart beating, allowing it to perform without an external power source.
That allows it to not just track data for diagnostics and monitoring but to also offer therapeutic benefits such as electrical pacing and thermal ablation, the researchers reported in a paper published in the journal Nature Electronics.