RF (radiofrequency) devices have played a central role in driving the evolution of aesthetics medicine, on the other hand there are probably fewer people who recognize the underlying mechanism of their efficacy. This article introduces the theory behind capacitive coupling RF using 6.78 MHz and the clinical benefits of the latest technology combining monopolar and bipolar approaches, along with case studies.
- INDEX
Basic Understanding of RF Mechanisms is the First Step in Appropriate Medical Practice (00:30-)
RF devices in aesthetics medicine have evolved significantly over the past 20 years. To understand the differences between RF devices, we must understand that there are basically two heating methods: using “current” and using “electric field.” Conductive fibrous tissue is intensely heated by Joule heating, while water, being a dielectric, is gently warmed through dielectric heating via the electric field. Understanding these physical mechanisms forms the basis for more precise treatment selection.
The Innovative Structure Pioneered by Thermacool (04:13 -)
Capacitively coupled monopolar RF enables current delivery to deep tissue by forming a capacitive structure. The 6.78 MHz frequency, in particular, lowers impedance and efficiently transfers energy subcutaneously. This high-frequency technology was patented by Thermacool for 20 years but has now expired, allowing various manufacturers to apply this technology and accelerating competition.
Cutting-edge Technology Combining Immediacy and Lasting Effect (08:50- )
Patients seek “immediate results” and “long-lasting outcomes.” The new RF technology achieves both by delivering monopolar and bipolar energy through the same electrode. Bipolar provides instant tightening, while monopolar promote gradual collagen remodeling over time. Actual cases show visible facial contour improvement right after treatment, with effects maintained even three weeks later. The deep thermal action demonstrates unparalleled longevity.
Knowledge and Tools to Guide Treatment Choices (09:45-)
Learning the fundamentals of RF technology provides strategic value beyond simply comparing device specs. Understanding differences between conductive and dielectric properties, and the relationship between frequency and impedance allows you to maximize the potential of the latest mono/ bipolar devices. This enables you to deliver treatments that enhance patient satisfaction and strengthen your clinic’s competitive advantage.
