Tuesday 25 February 2025
Scientists have made a significant breakthrough in developing a new way to power implantable medical devices, such as pacemakers and neurostimulators. For years, researchers have been searching for a method to wirelessly transmit energy to these devices without the need for bulky batteries or invasive surgeries.
The solution lies in a phenomenon called body-coupled powering (BCP), which uses the human body itself as a conduit for electrical signals. By harnessing this natural process, scientists have created a system that can efficiently transfer power to implantable devices from outside the body.
The new approach, known as galvanic BCP, relies on two circular ring electrodes placed on the skin over the area of interest. These electrodes are connected to a small device that generates an electrical signal, which is then transmitted through the body tissue to the implantable device. The power transfer occurs at a frequency of around 1.25 GHz, which is safe for human exposure and minimizes interference with other devices.
One of the key advantages of this method is its ability to overcome the limitations of traditional wireless power transmission (WPT) techniques. Unlike WPT methods that rely on inductive coupling or capacitive coupling, galvanic BCP can achieve higher power transfer efficiency and longer ranges without the need for bulky coils or antennas.
The system has been tested on a rat model, with promising results. The researchers were able to transmit power wirelessly to an implantable device at a distance of up to 2 mm from the skin surface, achieving a power transfer efficiency of over 20%. This is a significant improvement over previous WPT methods, which typically require closer proximity between the transmitter and receiver.
The implications of this technology are far-reaching. For patients with implantable devices, it could mean fewer surgeries and less discomfort. For medical professionals, it could open up new possibilities for remote monitoring and treatment of conditions such as Parkinson’s disease or chronic pain.
While there is still much work to be done before galvanic BCP can be translated into clinical practice, the potential benefits are clear. By leveraging the human body’s natural electrical signals, scientists may have found a way to revolutionize the field of implantable devices and improve the lives of millions of people worldwide.
Cite this article: “Wireless Powering of Implantable Devices using Body-Coupled Power Transfer”, The Science Archive, 2025.
Here Are The Keywords: Body-Coupled Powering, Wireless Power Transmission, Implantable Devices, Pacemakers, Neurostimulators, Galvanic Bcp, Electrical Signals, Human Body, Power Transfer Efficiency, Medical Devices
