Radiofrequency (RF) energy is a useful method for generating heat, which can be used to cut, coagulate or induce metabolic processes in the body target tissue.
Radio frequency technology has been deployed in medicine for over 80 years. The first surgical procedure using ablative radiofrequency electro-surgery technique was performed in 1926 by Dr Cushing using a mono polar radiofrequency ablative device invented by W.T Bovine of Harvard University. The use of Radio frequency has since been introduced to many other fields and applications in medicine. It is used for safe tissue shrinkage in cases of malignant and non malignant tumors, for reduction of obstructive tissue in cases of sleep apnea, treatment of cardiac arrhythmia by targeting and destroying cardiac tissue that is the source of the arrhythmia.
RF is also used as a treatment for uncontrolled bowel movements, uncontrolled passage of urine or esophageal reflux syndrome. In these cases the treatment includes microscopic RF targeting of the collagen in the organ wall. The creation of such focal, microscopic treatment within the cavity wall, results in reduced dynamic tissue compliance, and improvement in the pathologic conditions.
RF energy is also deployed in orthopedics for gentle ablation of tendons and ligaments, it is also used to coagulate and decompress disc material, healing tears or fissures. Pain management is also a vast branch of medicine that deploys RF. The default treatment of pain is usually by prescribed pain killers; these can be problematic as they are addictive and do have side effects. RF is used for pain management via a few different methods. The first method is by identifying the problematic muscle and healing it by heating the muscle by targeting it with RF. Other methods involve targeting the nerve tissue directly: a process called Radio Frequency Lesioning (RFL). In this process continuous radiofrequency current is transmitted to a small volume of nerve tissue hence inducing heat generation, this causes disruption of pain signals from that specific area. This procedure has a selective effect on specific nerve fibers, reducing pain in target areas, but without affecting other sensory capabilities of the specific nerve.
Radio Frequency has been established in aesthetic medicine as a means to induce skin tightening and reduction of wrinkles, improvement of cellulite and body contouring. RF current is transmitted into the skin and heat is generated due to the resistance of the skin to the RF current. The heat induces shrinkage of existing collagen and stimulation of the fibroblast to generate new collagen. In addition, heat generated in the hypodermis adipose tissue (fat layer in the hypodermis) causes release of liquid fat from the fat cells, thus inducing shrinkage of the fat cells in the adipose tissue which leads to circumference reduction and improvement in the appearance of cellulite.
Thermage were the first to introduce the first generation of mono polar RF for the purpose of body contouring and skin tightening in 1997. In mono polar RF one electrode is used to transmit the RF energy to the skin and a return pad is placed on the body to close the circuit. Mono polar RF devices use very high power (250-300W) as the treatment is not focused and the electrical current aimed at the dermis will actually dissipate throughout the body. The treatment is painful due to the high power it requires and a topical anesthesia is needed to tolerate the treatment.
Bi polar RF technology is the second generation of RF aesthetic devices; it uses 2 electrodes to transmit the RF current and does not require a return pad. The penetration depth is about half the distance between the 2 electrodes. Most Mono and Bi polar devices require surface cooling in order to protect the epidermis during treatment.
TriPollar technology is the 3rd generation of RF aesthetic devices. It uses 3 electrodes to transmit the RF current into the dermal and fat layers while protecting the outer most skin layer. The energy field created using this method is very condense and requires substantially less energy to achieve the desired heating of the treated area, hence enabling a safe pleasant treatment with the positive immediate and long term results of RF aesthetic treatments.
Tags: aesthetic medicine, bowel, cellulite, circumference reduction, collagen, fat cells, orthopedics, Pain management, Radio Frequency Lesioning, Radiofrequency, skin tightening, Tripollar
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