An electrosurgical unit is a needle used in surgical procedures to cut the flesh and at the same time automatically sterilize the wound. The electrosurgical needle end cuts the flesh very quickly with a small arc that oscillates at a frequency of several million cycles per second.
Among them, the high-frequency electrosurgical knife is also called a high-frequency surgical device, which is a point surgical instrument that replaces a traditional mechanical scalpel to cut tissue. Its working principle is that the high-frequency and high-voltage current generated by the effective electrode tip can heat the tissue when it comes into contact with the body, thereby achieving separation and solidification of the body tissue, and finally can serve the purpose of cutting and stopping bleeding.
Compared with traditional mechanical scalpels, high-frequency electrosurgical knives often have the following obvious advantages: high-frequency electrosurgical knives not only have a fast cutting speed, but also a simple and safe operation. Compared with the traditional use of traditional mechanical scalpels, the use of high-frequency electrosurgical knives can greatly shorten the operation time, thus greatly reducing the amount of blood loss and blood transfusion of patients, and ultimately reducing the complications and surgical costs of patients; Compared with other electrosurgical instruments, the range of high-frequency electrosurgical instruments is often wide, and high-frequency scalpels are easier to enter the surgical site. It is not only easy to operate but also relatively reasonable in price and performance.
However, when using a high-frequency electrosurgical knife, there are some things to be aware of to ensure that the operation can be performed safely and effectively. The things to be aware of are as follows:
1. Because the high-frequency electric knife will produce sparks and arcs during the operation, once there is flammable and explosive material in the operating room, it will burn or explode when it encounters sparks or arcs. Therefore, it is necessary to prevent the presence of flammable and explosive gases, liquids or other substances in the operating room.
2. Because high-frequency electrosurgical knives often interfere with cardiac pacemakers, making them work abnormally or even stop, patients with cardiac pacemakers generally cannot use high-frequency electric knives. If a high-frequency electrosurgical knife must be used, the necessary and effective precautions should be taken in accordance with the instructions for use of the patient's cardiac pacemaker.
3. The plates of the high-frequency electrosurgical knife must be properly connected and placed to ensure that the contact surface with the patient's skin is large enough. The operator should not blindly increase the output power of the electrosurgical unit, which should be limited to the effect of the surgery. This is mainly because any hazard in high-frequency electrosurgery surgery increases with increasing power.