変形段付きホーン形マイクロ超音波メスの試作と評価

カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2011/06/01

タイトル(英語): A Micro Ultrasonic Scalpel with Modified Stepped Horn

著者名: 黒澤　実（東京工業大学 総合理工学研究科），梅原　雄司（東京工業大学 総合理工学研究科）

著者名(英語): Minoru Kurosawa (Tokyo Institute of Technology), Yuji Umehara (Tokyo Institute of Technology)

キーワード: マイクロアクチュエータ，超音波メス，PZT膜，水熱法，マイクロマシン　　Micro actuator，Ultrasonic scalpel，PZT film，Hydrothermal deposition，MEMS

要約(英語): A transducer for a micro ultrasonic scalpel has been fabricated. The micro ultrasonic scalpel can be used with an endoscope for a non-abdominal operation or micro surgery, for example, through a microscope. The ultrasonic transducer was 9.8 mm long and 2.7 mm wide and has stepped horn to amplify vibration velocity; tip of the horn is 0.6 mm wide. The scalpel operated at the resonance frequency in longitudinal mode of 278 kHz. The piezoelectric material was lead zirconate titanate (PZT) that was deposited by the hydrothermal method. The vibration velocity at the tip of the horn in longitudinal direction was 4.0 m/s with 40Vp-p driving voltage in both side electrodes. To demonstrate a beneficial effect of the scalpel, a cutting test that the transducer was stuck into pork fat was carried out.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.131 No.6 （2011） 特集：圧電材料・デバイス

本誌掲載ページ: 1144-1149 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/131/6/131_6_1144/_article/-char/ja/