What are the applications of radio frequency in the medical field?

Q1: What is the principle of radiofrequency ablation treatment?

A: Radio frequency is a special frequency (medical industry: frequency range from 100KHz to 1MHz) alternating current, no pollution. It is introduced into human tissue through the treatment electrode and generates biological heat. The temperature can reach 90-110 degrees, causing tissue cells Coagulation, degeneration, necrosis, and finally dissolution and shedding, the wound surface is repaired by fibrous tissue. Simply put, it is to use thermal energy to locate and deactivate the diseased tissue without damaging the surrounding tissues to achieve the purpose of treatment.

Q2: What kinds of lesions can be treated by radiofrequency ablation?

A: The current clinical application scope:

Otorhinolaryngology: Chronic rhinitis, small nasal polyps, benign small tumors, turbinate hypertrophy, allergic rhinitis, epistaxis, adenoid hypertrophy, nasopharyngeal tumors, chronic pharyngitis, pharyngeal lymphoid follicular hyperplasia, tongue tonsil hypertrophy, snoring , Vocal cord polyps, vocal cord nodules, epiglottic cysts, small epiglottic tumors.

Dermatovenereology: various surface tumors, warts, underarm odor, condyloma acuminata, papilloma, hemangioma, spider nevus, purulent granuloma.

 Gynecology and obstetrics: cervical erosion, cervical polyps, glandular cysts, vulvar white shifts, vulvovaginal condyloma acuminata, mucosal lesions.

Oral cavity: oral mucosal erosion, ulcers, oral tumors, root canal disinfection, hemangioma, lichen.

Department of Digestion: Gastric ulcer, gastric bleeding, gastrointestinal bleeding, gastric polyps, intestinal polyps, esophagus dilatation, papilloma, mucosal lesions.

Anorectal department: internal and external hemorrhoids, intestinal polyps, intestinal erosion, ulcers, small tumors.

Breath and Inhalation Department: Bronchial hemorrhage, mucosal cancerous tissue.

General Surgery: Surgical hemostasis, laparoscopic closure of blood vessels, tumors, mucosal cancerous tissues.

Tumor Department: Primary liver cancer, metastatic liver cancer, liver hemangioma, liver cyst, primary lung cancer, breast cancer, uterine fibroids, pancreatic cancer, kidney cancer, osteosarcoma and other solid organ tumors.

Neurology Department: Neurogenic pain (neuralgia after herpes zoster, primary trigeminal neuralgia, glossopharyngeal neuralgia, etc.)

Cardiology: Atrial fibrillation, ventricular premature beats, arterial dissection, arrhythmia, tachycardia (paroxysmal supraventricular tachycardia, ventricular tachycardia caused by pre-excitation syndrome and atrioventricular node dual route) Atrial tachycardia, atrial flutter, atrial fibrillation), etc.

Cosmetic Plastic Surgery: Skin lift, wrinkle removal, plastic surgery, spots and moles on the body, etc.

Spine Surgery: YESS: Young’s Percutaneous Endoscopic Disc Removal, Yau’s Disc Removal, Myeloma Resection, Spinal Articular Surface Resection, Spinal Ganglion Resection.

Orthopedics: fractures, bone tumors, cartilage modification, muscle spasms, cartilage thermoforming, articular cartilage part thickening, cartilage softening.

Sports Medicine: Shoulder joint laxity, carpal tunnel syndrome, hip flexor spasm, patella dislocation, meniscus debridement, cruciate ligament reconstruction, partial cruciate ligament injury, knee joint laxity, ankle joint laxity, ankle sprain.

With the deepening of clinical research, the application of radio frequency has become more and more extensive and in-depth.

Q3: The fundamental difference between radio frequency knife and high frequency electrosurgical knife. (Basic working principle and application scope of high-frequency electric knife)

 A: The radio frequency knife uses special electromagnetic waves to act on the human body, causing high-speed molecular motion in tissue cells, high-speed molecular motion to observe, and collision to generate heat (that is, internal heating effect), which can make the diseased local tissues without damaging normal tissues. Produces a biological hyperthermia effect, and the diseased tissues coagulate, degenerate, and die. Mainly used in the ablation, coagulation and hemostasis treatment of diseased tissues.

The high-frequency electrosurgical knife uses a complete circuit to cut and coagulate the tissue. It gathers high-frequency currents with high current density and destroys the tissue at the point where the effective electrode tip is in contact, so that the tissue cells in contact with the electrode or adjacent The temperature rises sharply, so that the tissue cells are carbonized and broken to achieve cutting and coagulation. It is widely used in general surgery, chest, brain, ENT, frontal surgery, gynecology, etc.

Q4: The fundamental difference between radio frequency and microwave. (Basic working principle and application scope of microwave)

A: The principle of the microwave ion comprehensive treatment instrument: According to the physiological characteristics of the human body, a microwave transmitter emits a wave of a specific wavelength to simultaneously treat the diseased tissue with or without contact. The thermal and biological effects of the microwave are used to make the protein of the diseased tissue in Necrosis and shedding under the action of high temperature, at the same time it has the effects of hemostasis, coagulation, cauterization, and anti-inflammatory. It has simple operation, strong coagulation power, no tissue carbonization, no sputtering, no peculiar smell, good wound repair, high cure rate, not easy to relapse, etc. advantage.

There is a fundamental difference between radio frequency and microwave in the design of digital circuits. Analog circuits are also different, but they belong to the type of radio waves, and their frequencies are different, so the radiation effects are also different. Because of the low frequency of radio frequency, it is not necessary to check according to relevant national standards. Its electromagnetic radiation effect, and the microwave frequency is thousands of times that of radio frequency, so it has strong side effects on the human body.

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