Plasma operation electrode for otorhinolaryngologic department

Abstract

The invention discloses a plasma operation electrode for the otorhinolaryngologic department, and belongs to the technical field of medical devices. The plasma operation electrode comprises a ceramichead, a working electrode, a tubular circuit electrode, a water suction pipe and a water outlet flow-guiding part; a backflow hole is formed in the ceramic head, the working electrode is arranged at one end of the ceramic head, and the other end of the ceramic head is fixedly connected with the end of a handle through the tubular circuit electrode; the water suction pipe is arranged in the tubularcircuit electrode in a sleeved mode, a water inlet channel is formed between the water suction pipe and the tubular circuit electrode, and the end of the water suction pipe is connected with the ceramic head and communicates with the backflow hole; and one or more water outlet holes are formed in the position, close to the end, of the tubular circuit electrode, the water outlet flow-guiding partis arranged on the position, corresponding to the water outlet holes, of the tubular circuit electrode in a sealed mode, and a water injection channel is formed between the water outlet flow-guiding part and the tubular circuit electrode. The plasma operation electrode has the great flow guiding effect on normal saline, water supplying is uniform and sufficient, conductivity can be effectively enhanced, it is effectively ensured that the position making contact with tissue does not leak electricity, and reliability and safety are high.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a plasma surgical electrode used in otolaryngology. Background technique [0002] Low-temperature plasma ablation technology has the advantages of safety, minimal invasiveness, simple operation, and less pain for patients, and can realize the functions of tissue cutting, ablation, and hemostasis at low temperature (40-70°C), and it is being used more and more. In clinical practice, especially in the Department of Otolaryngology, such as excision, ablation and hemostasis of tonsillectomy and adenoidectomy, it has a very wide range of applications. The basic principle of this technology is to use an electric field of a certain frequency to convert the electrolyte between the plasma surgical electrode and the target tissue into a low-temperature plasma state, and form a highly concentrated plasma thin layer at the front of the surgical electrode. The strong electric fiel...

AI Technical Summary

Problems solved by technology

like figure 1 As shown, at present, the existing plasma surgical electrodes applied to tonsils and adenoids are generally provided with drainage holes 202 on the lower side 201 of the outer electrode 20 exposed to the insulating layer, and physiological saline flows out through the drainage holes 202. The structure has the following problems in use: because the metal end of the external electrode 20 is exposed on the insulating layer, there is not only a potential safety hazard of easy leakage, but also the exposure of the external electrode 20 is easy to burn other parts of the tissue, which is highly irritating and risky, and is likely to cause doctors and the patient’s psychological pressure is high, which leads to poor reliability, safety and stability of the operation; in addition, the drainage hole 202 is arranged on the external electrode 20, on the one hand, the water supply is insufficient and uneven, and on the other hand, the normal saline only relies on the water flow Pressure and gravity flow to the water inlet at the tip of the working electrode, making the liquid supply at the tip of the electrode unstable and uncontrollable, especially when the tip of the electrode is not vertically facing down, especially when the tip of the electrode is facing upwards, the physiological saline cannot be accurate Flow to the water inlet at the tip of the working electrode, causing the electrode to work unstable or even stop. Insufficient saline supply at the tip of the electrode will also lead to excessive temperature damage to the tissue, and insufficient supply of working saline at the tip of the electrode will produce a lot of smoke Affects the clarity of the surgical field of view; at the same time, the insulating layer near the working electrode end is prone to deformation after repeated use, causing poor water supply

In addition, if it is necessary to treat tonsils and adenoids at the same time during the operation, it is very inconvenient to replace the adenoids with electrodes for tonsil surgery in the prior art.

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