期刊
JOURNAL OF MICROMECHANICS AND MICROENGINEERING
卷 19, 期 2, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0960-1317/19/2/022001
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资金
- CASS Foundation [SM/07/1616, SM/06/1208]
- Australian Research Council [DP0773221]
- New Staff and Small Grant Scheme funds from Monash University
- Australian Research Council [DP0773221] Funding Source: Australian Research Council
Minimally invasive and in vivo surgery is limited by the ability to provide controllable and powerful motion at scales appropriate for navigation within the human body. A motor for in vivo microbot propulsion is presented with a stator diameter of phi 250 mu m, demonstrating the potential to directly drive a flagellum for swimming at up to 1295 rpm with a torque of 13 nN m. The motor uses coupled axial-torsional vibration at 652-682 kHz in a helically cut structure excited by a thickness-polarized piezoelectric element. The output power is 4.25 mu W, on the order of what is necessary to navigate small human arteries.
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