Reflector for extracorporeal shock wave stone crusher

Abstract

The invention discloses a reflector for an extracorporeal shock wave stone crusher. The reflector comprises a reflection cylinder body and a bearing barrel, the bearing barrel is fixedly connected to a top part of the reflection cylinder body, the reflection cylinder body is a hollow semi-elliptical sphere with a downward opening, an auxiliary assembly is arranged on an outer side of the reflection cylinder body, a positioning assembly for fixing an electrode is vertically arranged in the bearing barrel and the bearing barrel is connected with a bearing frame. Beneficial effects are as follows: multiple groups of adjustable reflection sheets are arranged in the reflection cylinder body, such that when double-focus lithotripsy needs to be conducted, the reflection sheets are pushed out of accommodating cavities and extend into the reflection cylinder body to form a second focus different from a reflection focus of the reflection cylinder body, since positions of the reflection sheets are adjustable, free switching between a single focus and double focuses is achieved, operation is easy, time and labor are saved, and practicability is high. Each group of the reflection sheets can move independently, such that a reflection intensity of the second focus can be adjusted to meet treatment requirements of different patients.

Description

technical field [0001] The invention relates to the field of shock wave lithotripter, in particular to a reflector for an extracorporeal shock wave lithotripter. Background technique [0002] Extracorporeal shock wave lithotripsy is an important technology in the field of urology. Shock waves are generated by underwater high-voltage rapid discharge, which can cause explosive gasification of water through instantaneous discharge, which can release huge energy and generate supersonic shock waves in water. The device concentrates the shock wave on the gathering point, and ensures that the gathering point is aimed at the stone to crush the stone. Traditional shock wave lithotripsy equipment mainly relies on one focal point to gather energy to the location of the stone, and only uses tension and stress to crush the stone. In order to use shear force to assist lithotripsy, dual-focus lithotripsy equipment has appeared on the market. [0003] The Chinese patent with the applicatio...

AI Technical Summary

Problems solved by technology

It solves the problem that the existing concentrator only uses the tension generated by the reflected wave when the shock wave enters the stone and the refracted wave when the shock wave passes through the stone, and a series of stress effects produced by the shock wave on the surrounding stone to crush the stone, resulting in broken stones Defects such as low efficiency and patient pain

The above-mentioned patent generates two focus points with different heights through the main focus body and the sub-focus body, so as to crush the stones by shear stress. However, the sub-focus body of this structure is always in a fixed position, so that the energy intensity of the second focus It cannot be adjusted, and when a single-focus reflector needs to be used, the entire focusing body needs to be disassembled and replaced, so it is very inconvenient to use and poor in practicability

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