Design and Validation of a Portable Radio-Frequency Diathermy Prototype (poster)
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Fecha
2017-06
Autores
Corres-Matamoros, Antonio
Martínez-Guerrero, Esteban
Rayas-Sánchez, José E.
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Editor
IEEE
Resumen
Descripción
In this work we present the design of a portable radio-frequency diathermy (RFD) prototype and its initial medical validation. The electronic circuit consists of a voltage-controlled oscillator, a low-frequency oscillator and a voltage amplifier powered by a rechargeable battery. Circuit was designed to develop a pulsed output of 120 V at a frequency ranging from 500 KHz to 1 MHz. The RFD circuit was implemented with commercially available components and assembled on a printed circuit board (PCB). The complete product, including flexible electrodes, was assembled on a 6 cm x 9 cm x 3 cm cabinet. Experimental results show that the output can reach a pulsed voltage of 84 Vpp and a current of 120 mA during 8 hours of continuous operation, which fulfills the autonomy requirement of portable devices for low power RFD applications. A comparative study according to physical rehabilitation protocol was carried out on a universe of 20 patients with lumbago disease with continuous RFD treatment using our prototype versus a traditional RFD treatment. Preliminary results show that muscle healing was more effective in patients with continuous RFD treatment, validating this prototype for therapeutic applications.
Palabras clave
Low-frequency Oscillator, Voltage-controlled Oscillator, Inductive-load Voltage Amplifier, Radio-frequency Diathermy,, RFD, Characterization, Prototype, Product Design
Citación
A. Corres-Matamoros, E. Martínez-Guerrero, and J. E. Rayas-Sánchez, “Design and validation of a portable radio-frequency diathermy prototype,” in Int. Caribbean Conf. Devices, Circuits, and Systems (ICCDCS-2017), Cozumel, Mexico, Jun. 2017 (poster).