부산대학교 도서관

This paper reports on the visualization results of the attachment phenomenon of microbubble to the burrs of micro order in the tip of medical implant and of the interaction between the underwater explosion induced by the electrical discharge and the implant attached with microbubbles. The attachment of microbubbles to the implant was directly visualized by the magnified photographing with the microscope attached to the camera. The interaction of underwater explosion caused by the electrical discharge was visualized by the shadowgraph method with suppressing light emission intensity of electrical discharge. The visualization results indicated that the implant was attached with the bubbles combined with at least two microbubbles. It was found form the visualization images that not only the underwater shock wave and but also the motion of primary bubble induced by the electrical discharge interfered with the bubbles attached to the implant, resulting in the motion of the bubbles on the burrs of implant.