According to foreign media reports, a research team in South Korea has developed a new method to drive medical implant devices. This method uses an active photonic wireless system, including micro LED flexible patches that can be attached to the skin and photovoltaic modules integrated into medical implant devices.
As we all know, medical implantation devices such as cardiac pacemakers help to monitor and regulate people’s physical conditions and support effective medical treatment. However, these devices usually need a constant power supply to keep running. Therefore, power supply has become a major problem, and batteries and wired power supply also limit the application of medical implant devices. For example, when the battery runs out, the battery can only be replaced by invasive surgery, which will cause the risk of surgical complications, such as contusion, infection and other adverse reactions.
To this end, the research team of Korea’s Gwangju Academy of Sciences (GIST) has developed a solution based on micro LED technology. They have developed an active photoelectric transmission system that can generate electric energy in the body, providing a sustainable way to supply enough electric energy for medical implant devices and avoiding high-risk replacement methods. It is reported that the system includes a micro LED that can be attached to the skin and a photovoltaic module integrated into medical implant equipment. Among them, the photon source patch micro led generates photons that can penetrate the tissue, and the photovoltaic module generates electric energy after capturing photons.
It is reported that after testing mice, the research team found that the operation of this new active photoelectric wireless transmission system is not affected by weather, clothes and indoor and outdoor conditions. Among them, micro LED can successfully penetrate the living tissue in mice and recharge the implanted device in a wireless and convenient way.
Gist expert jongho Lee is the person in charge of this study. He pointed out that these research results enable the currently available implant devices to be used for a long time, and also accelerate the application of emerging electronic implant devices. These emerging devices usually need high power to provide various convenient diagnosis and treatment functions.
According to the report, the research results were published in proceedings of the National Academy of Sciences (PNAs) on July 6, 2020, with the title of “active optical wireless power transfer into live tissues”.