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首页> 外文期刊>Japanese journal of applied physics >Study on effectiveness of anti-infective system using a planar transducer irradiating low-intensity ultrasound to titanium dioxide particles
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Study on effectiveness of anti-infective system using a planar transducer irradiating low-intensity ultrasound to titanium dioxide particles

机译:使用平面换能器辐射低强度超声至二氧化钛颗粒的抗感染系统的有效性研究

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摘要

Infections at the exit site of a catheter retained in a body have become a serious problem. Conversely, reactive oxygen species (ROS), which have an anti-infective effect, can be produced by ultrasound irradiation to titanium dioxide. Therefore, an anti-infective catheter system using low-intensity focused ultrasound (LIFU) was developed. However, in daily clinical use, the attachment to the skin is not easy due to the concave shape of the transducer. To overcome this problem, the feasibility of using a planar transducer instead of the conventional concave transducer was investigated in this study. The results of the experiment using a methylene blue solution and a thin-film thermocouple revealed that the ROS production was enhanced even when a planar transducer with a lower intensity than a conventional LIFU was used. Moreover, the temperature rise due to the heating of the transducer surface was insignificant. (C) 2020 The Japan Society of Applied Physics
机译:保留在身体中的导管的出口部位的感染已成为一个严重的问题。相反,可以通过对二氧化钛的超声照射来产生具有抗感染效果的反应性氧物种(ROS)。因此,开发了使用低强度聚焦超声(LIFU)的抗感染导管系统。然而,由于换能器的凹形形状,对皮肤的附着不容易。为了克服这个问题,在本研究中研究了使用平面换能器而不是传统的凹换能器的可行性。使用亚甲基蓝溶液和薄膜热电偶的实验结果表明,即使使用具有比传统LIFU的强度较低的平面换能器,ROS产生也得到了增强。而且,由于换能器表面的加热而导致的温度升高是微不足道的。 (c)2020日本应用物理学会

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  • 来源
    《Japanese journal of applied physics》 |2020年第sk期|SKKE18.1-SKKE18.6|共6页
  • 作者单位

    Natl Inst Adv Ind Sci & Technol Hlth Res Inst Tsukuba Ibaraki 3058564 Japan|Ochanomizu Univ Human Ctr Engn Bunkyo Ku Tokyo 1120012 Japan;

    Natl Inst Adv Ind Sci & Technol Hlth Res Inst Tsukuba Ibaraki 3058564 Japan;

    Ochanomizu Univ Human Ctr Engn Bunkyo Ku Tokyo 1120012 Japan;

    Natl Inst Adv Ind Sci & Technol Hlth Res Inst Tsukuba Ibaraki 3058564 Japan;

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