Abstract
For this study we have evaluated pore formation and injection performance of electrically-induced bubbles for minimally-invasive injection technology. It is important to note that this device use synergy effect of shock wave and micro-jet of cavitation to process the object. Hence, we have evaluated the contribution of shock wave and micro-jet to pore formation and injection of bubble injector. Agarose gel is employed to be injected by bubble injector, and evaluated the depth and surface pore diameter by visualizing with fluorescent beads. It was observed that the depth and diameter of pore is increase with increase input power. Also, it was confirmed that the invasiveness by shock wave is more dominant than micro-jet contribution. The size of shock wave and the distance between the injector and processing object can be the important parameter to discriminate the invasiveness of injection.
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