ArticleIEEE transactions on bio-medical engineering2025
A Quasi-Resonant System for High-Frequency Trans-Spinal Magnetic Stimulation (HF-TSMS).
Article in IEEE transactions on bio-medical engineering, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectiveWe designed, developed, and tested a novel non-invasive system for high-frequency (HF) trans-spinal magnetic stimulation (TSMS).
methodsThe system is based on a quasi-resonant pulse width modulation (PWM) design with customizable parameters, coupled with a custom figure-8 coil optimized for selective stimulation of spinal fibers. A key innovation is sequence-controlled zero current switching (SCZCS), which minimizes switching losses.
resultsThrough quasi-resonance, a capacitor bank canceled the coil inductance, enabling the generation of 5 kA current pulses at 10 kHz with input voltages over three times lower than traditional magnetic stimulation methods. Preliminary rodent experiments, including electrophysiological recordings from the common peroneal nerve studies, demonstrated that the system's pulses reached the spinal cord. The HF-TSMS system operated safely, delivering HF stimulation without significant coil heating during experimental sessions.
conclusionThe proposed HF-TSMS system generated HF current pulses at lower cost, with reduced switching losses and higher efficiency. SIGNIFICANCE: This system has the potential for integration into clinical practice as a safe and non-invasive treatment option for chronic pain management.
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