Why is there no carbonization of tissue during surgery with radiofrequency high-frequency surgical equipment?
The burning of human skin mainly depends on temperature and time. Generally, the temperature that can cause instant burns to the human body is above 70°C, which means that when the skin comes into contact with a temperature of 70°C or higher, it will be instantly damaged; if the human body is in continuous contact with objects above 50°C, it will also be burned. Damage to tissues at temperatures ranging from 40-49°C is reversible; damage to tissues is irreversible at temperatures above 50°C; temperatures between 40-70°C are conducive to tissue biopsy; when the temperature exceeds 100°C, tissues will rapidly dry out and even carbonize.
The working principle of radio frequency high-frequency surgical equipment determines that it will not cause tissue carbonization during operation. It utilizes radio frequency electromagnetic waves, causing tissue cells to rapidly oscillate under the influence of the electromagnetic field, colliding with cell walls to cause them to rupture, thus achieving the purpose of cutting. The electric knife itself does not generate heat and belongs to low-temperature cutting, with the temperature in the surgical area not exceeding 70°C.
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