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MICRO-JET DEVICE PREVENTING JET EFFICIENCY DROP PROBLEM WHEN REPEATED INJECTION BY REMOVING METALLIC COLLOID
MICRO-JET DEVICE PREVENTING JET EFFICIENCY DROP PROBLEM WHEN REPEATED INJECTION BY REMOVING METALLIC COLLOID
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机译：通过去除金属胶体重复注入来防止射流效率下降问题的微射流设备
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摘要
The present invention relates to a microjet injection device which injects an injection liquid to be injected stored therein, such as medicinal liquids, in a high speed microjet form. More specifically, the microjet injection device, which applies electrical energy to a working fluid within a sealed chamber to generate bubbles and microjet-injects a liquid by means of the bubble as a propulsive force, is improved to prevent an injection speed and an efficiency from being degenerated due to the generation of metal colloid around electrodes when injections are repeatedly performed. The microjet injection device provided in the present invention comprises: a pressure chamber which has a working fluid filled hermetically inside a sealed inner space; a medicinal liquid chamber which is placed adjacent to the pressure chamber, accommodates a medicinal liquid therein, and has a micro nozzle formed on one side thereof for discharging the medicinal liquid to the outside; an elastic membrane which has elastic properties to enable extensibility and resilience, and separates and divides the pressure chamber from the medicinal liquid chamber; an electrode which concentrates electric energy on the working fluid inside the pressure chamber to generate bubbles within the working fluid; and a magnet module which is installed inside or outside the pressure chamber and includes a magnet to apply a magnetic force to the inside of the pressure chamber.
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