Chinese research team introduces battery-powered, rTMS device weighing only 6.6 pounds, for accessible high-frequency brain stimulation.
Chinese researchers have unveiled the world’s first battery-powered, wearable repetitive transcranial magnetic stimulation machine, marking a significant leap in brain therapy accessibility. Traditionally, rTMS devices weigh over 110 pounds , require large amounts of power, and must be set up in specialized clinical facilities, making regular treatment challenging.
The new wearable device, however, weighs just 6.6 pounds , similar to a laptop, and cuts power consumption to 10% of standard systems.Developed by the Institute of Automation under the Chinese Academy of Sciences, this portable machine offers high-frequency brain stimulation through a lightweight magnetic coil system and advanced high-voltage pulsed driving technology. As a result, patients can undergo rTMS while walking or performing daily tasks, freeing them from the traditional stationary clinical environment.Compact, non-invasive brain stimulationRepetitive transcranial magnetic stimulation uses a coil to generate magnetic pulses that stimulate specific brain regions. The pulses induce electrical currents in nerve cells, potentially enhancing mood regulation. Historically used to treat depression, rTMS may also hold promise for conditions such as obsessive-compulsive disorder , anxiety, post-traumatic stress disorder , and even certain motor dysfunctions.Because it requires neither surgery nor anesthesia, rTMS is considered a non-invasive procedure. The new battery-powered design from China is compact, about the size of a thick paperback novel, and encased in off-white plastic with a small screen and a series of bright indicator lights. A deep-blue knob on the side stands out, controlling intensity or other operational settings. A black cable connects the main unit to a pair of slightly elevated circular pads on the treatment head, which deliver magnetic pulses to the targeted brain areas.Real-world testing and next stepsThe new wearable device demonstrated dynamic neural modulation during initial trials during walking. Researchers observed how leg movement contributed to changes in arm-related brain activity, indicating that real-life ambulation can positively influence therapy outcomes. According to Qi Ziwei, the first writer of the research article published in Nature Communications, the results pave the way for at-home and community-based rTMS treatments—offering relief to chronic patients who previously had to schedule visits at specialized clinics.The research team believes the system could eventually integrate with non-invasive brain signal detection tools to form a closed-loop neuromodulation approach. Liu Hao, a senior engineer at the Institute of Automation, explained that real-time decoding of brain signals would optimize the rTMS process, essentially creating a wearable brain-machine interface. Although this device is not a BCI in a traditional sense , it does facilitate machine-to-brain interaction through targeted magnetic stimulation.Toward greater accessibilityThis pioneering battery-powered rTMS system stands to transform how patients receive therapy for neuropsychiatric disorders. By removing cumbersome hardware and lowering energy requirements, the development could reduce the overall cost and make frequent sessions more practical. The future holds possibilities for combining this portable device with advanced real-time monitoring of brain signals, promising a more adaptive and personalized therapy protocol. With the potential to serve far-flung areas lacking clinical facilities, the new wearable rTMS machine also represents a vital step toward broader, more inclusive mental health care.
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