High voltage switch and shock wave lithotripter and shock wave therapy apparatus using it

Abstract

The invention relates to a high-voltage switch. The high-voltage switch comprises a housing, a positive electrode, a negative electrode and a trigger electrode, wherein the positive electrode and the negative electrode are oppositely arranged in the housing, the trigger electrode is arranged between the positive electrode and the negative electrode and is provided with a guide hole in a shape of a circular truncated cone, the small-mouth position of the guide hole is located on one side of the negative electrode, the large-mouth position of the guide hole is located on one side of the positive electrode, the top end of the negative electrode is inserted into the guide hole through the small-mouth position, and the housing is full of inert gas. The trigger electrode comprises a trigger piece and a reinforcing piece attached to one side of the trigger piece, and guide holes are formed in the trigger piece and a reinforcing piece which attach to each other. The invention further provides a shock wave stone breaker and a shock wave therapeutic apparatus using the high-voltage switch. The using times of the high-voltage switch can be increased, accordingly the service life of the high-voltage switch is prolonged, and the manufacturing difficulty and costs are further reduced. In addition, the shock wave stone breaker and the shock wave therapeutic apparatus using the high-voltage switch are also long in service life.

Description

technical field [0001] The invention relates to a high-voltage switch, a shock wave lithotripter and a shock wave therapeutic apparatus using the high-voltage switch. Background technique [0002] The high-voltage switch on the shock wave lithotripter usually includes three electrodes, a trigger electrode hole is opened on one electrode, and the trigger electrode is set in the trigger electrode hole, so that the trigger pulse of the trigger electrode makes the discharge conduction between the two electrodes . The structure and manufacturing process of this high-voltage switch are relatively complicated, the cost is high, and the service life is only about 400,000 to 500,000 times. Therefore, there has been a disc high-voltage switch disclosed in the invention patent of 200420024689.3 as the application number. This kind of high-voltage switch uses a trigger plate with a discharge hole as the trigger pole, and the two main electrodes are symmetrically arranged on both sides...

AI Technical Summary

Problems solved by technology

The chip high-voltage switch greatly simplifies the structure, reduces the difficulty of the process and the manufacturing cost, but through practical application, it is found that the number of times of use of this high-voltage switch is usually close to one million times, but it cannot be used well for high-frequency voltage. need to improve

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