Integrated pressure and flow sensor in silicon-based ultrasonic surgical actuator

被引:0
|
作者
Chen, X [1 ]
Lal, A [1 ]
机构
[1] Univ Wisconsin, Dept Elect & Comp Engn, Madison, WI 53706 USA
来源
2001 IEEE ULTRASONICS SYMPOSIUM PROCEEDINGS, VOLS 1 AND 2 | 2001年
关键词
D O I
暂无
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
We report on a transducer that not only cuts tissue ultrasonically but also senses pressure and liquid flow rate during cutting. Horn-shaped silicon needles with integrated piezoresistive pressure sensors were fabricated using bulk micromachining technology. The needles were driven ultrasonically by bonded PZT-4 plates. The device can be driven at its lambda/2 longitudinal resonance to cut and sense pressure, while cut tissue is aspirated through the needle by an external pump.
引用
收藏
页码:1373 / 1376
页数:4
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