Electrosurgical instrument based on smokeless electrode

Abstract

The invention provides an electrosurgical instrument based on a smokeless electrode, which belongs to the field of medical equipment, and a coating with high thermal conductivity, low friction coefficient, high temperature resistance and high flexibility is coated on a tool bit at the tail end of a metal electrode of a traditional electrosurgical instrument by adopting a growth process. The material of the coating comprises one of graphene, a carbon nanotube, a metal nanowire, silicon carbide, diamond and a titanium nitride material; the coating method comprises the processes of wet transfer, spin coating, dispensing, deposition and the like. According to the electrosurgical instrument provided by the invention, the coating material of the electrosurgical instrument can realize uniform heating of human tissues and avoid adhesion of scorched tissues, so that operation smoke is eliminated, the harm of the smoke to health of patients and medical personnel is avoided, meanwhile, the time spent on pumping and discharging the smoke in the operation process can be avoided, and the operation safety is improved; the structure is simple, operation is convenient, and real-time performance is high; and the cost is low.

Description

technical field [0001] The invention belongs to the field of medical equipment, and in particular relates to an electrosurgical instrument for eliminating surgical smoke. Background technique [0002] In recent years, electrosurgical instruments such as high-frequency electrosurgical pen, LEEP knife, and endoscopic electric cutter have been widely used clinically. They heat tissue through the high-frequency current generated by the electrode tip to achieve the purpose of cutting and coagulating body tissue. However, during the use of electrosurgical instruments, the high temperature will produce smoke-like substances, which are called surgical smoke, which is caused by the incomplete combustion of protein, fat and other components of human tissue. Surgical smoke is an air pollutant, and its chemical composition is polycyclic aromatic hydrocarbons, benzene, acrylonitrile, hydrogen cyanide, and carbon monoxide. The hydrogen cyanide released by acrylonitrile is colorless and t...

AI Technical Summary

Problems solved by technology

Surgical smoke has cytotoxicity and the possibility of inducing mutations. It may also contain HIV, human papilloma and other infectious viruses and bacteria. Long-term exposure of medical staff to such pollutants can easily threaten their health

[0003] At present, there are two main protective measures against surgical smoke in the operating room, one is to use smoke extraction equipment to extract the smoke generated; the other is to do personal protection, wear goggles and N95 or N100 protective masks; however, these two method has some shortcomings

At present, operating rooms in most areas in China use smoke extraction equipment to remove surgical smoke. The specific method is that the surgical assistant uses the smoke suction head to follow the leading doctor's surgical instruments to suck the smoke. The problems of this method are as follows: waste of manpower, assistants It is necessary to hold the suction device and follow the surgeon to suck out the smoke, and cannot cooperate with the operation in time; the head of the general suction device is relatively thick, which will interfere or block the view of the surgeon; once the suction device is put down to cooperate with the operation, the smoke generated will be discharged to the operating room, causing contamination

In terms of personal protection, N95 or N100 protective masks can only protect against respiratory infections, and wearing goggles can’t eliminate the interference of smoke from vision, which will affect the progress and safety of the operation

[0004] The purpose of the present invention is to propose a new train of thought for the diffusion and pollution problems of surgical smoke: to eliminate the generation of surgical smoke in the use of electrosurgical instruments (the surgical smoke hinders the doctor's sight on the one hand, and produces unpleasant smell on the other hand. , and release toxic and harmful substances into the air, causing long-term potential harm to human health)

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