High-conductivity discharge electrode

Abstract

The invention provides a high-conductivity discharge electrode, which is used for in vitro impact wave stone crushers, and is used as a generating device of an impact wave source. A high-price electrolyte solution is used as a conductive medium instead of water so as to improve the discharge ability of an electrode; silica gel, latex or other materials capable of transmitting impact waves are selected, a support jacket is additionally arranged on an original electrode, and the high-price electrolyte solution dissolved in water is poured and filled through the top of the support jacket. The high-conductivity discharge electrode is high in high conductivity, is stable in discharge channel, is low in treatment voltage, and is long in service life.

Description

technical field [0001] The invention provides a high-conductivity discharge electrode, which is mainly used in extracorporeal shock wave lithotripters as a shock wave source generating device. Background technique [0002] The extracorporeal shock wave lithotripter is a medical device used to treat stones in the urinary system. Its principle is: firstly, the stones in the patient's body are detected through the positioning system, and then the shock wave source generating device converts electrical energy into shock wave mechanical energy, and makes the energy accumulation area and The stones overlap, and the stones are crushed under repeated impacts and then excreted with urine. Extracorporeal shock wave lithotripsy has become the main clinical method for the treatment of urinary calculi because the patients are painless during treatment, do not need to be hospitalized, and can go with the treatment. [0003] Extracorporeal shock wave lithotripter mainly includes: shock wa...

AI Technical Summary

Problems solved by technology

[0007] 1. Compared with water with high ion concentration, it is more difficult to discharge in water with low ion concentration, which requires increasing the voltage of the energy storage capacitor of the crusher, but at the same time shortens the service life of the capacitor;

[0008] 2. The loss between the negative and positive electrodes is too large. On the one hand, it shortens the service life of the electrodes, and on the other hand, it expands the energy gathering area where the reflection converges on the second focus, thereby reducing the energy density per unit volume and reducing the stone crushing efficiency.

In this case, the voltage needs to be increased, but the energy accumulation area is expanded, and the energy density remains unchanged, which will increase the damage to the surrounding tissues of the stone.

[0009] 3. The discharge between the electrodes does not pass through the shortest path, and the discharge point is unstable, causing the energy reflected to the second focal point to gather and drift, resulting in a decrease in the efficiency of crushing stones and increasing damage

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