A novel needle‐free injection system by electrically induced microbubbles has been developed. First of all, we evaluated the depth of injected reagent for evaluating injection performance. Then, the cavitation‐induced shock wave has been focused to magnify the injection performance by semispherical reflector. We successfully visualized the shock wave by the schlieren method and succeeded in measuring the pressure of focused shock wave and expansion wave by hydrophone.

中文翻译：

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利用电微气泡的放电现象开发冲击波和膨胀波的切换和聚焦机制

已经开发出了一种新型的通过电微气泡产生的无针注射系统。首先，我们评估了注入试剂的深度，以评估注入性能。然后，空化引起的冲击波被聚焦以放大半球形反射器的注入性能。我们通过schlieren方法成功地看到了冲击波，并通过水听器成功地测量了聚焦冲击波和膨胀波的压力。