An Efficient Low-voltage Micropump For An Implantable Sphincter System

被引：0
作者：
Biancuzzi, G. [1 ]
Lemke, T. [1 ]
Woias, P. [1 ]
Ruthmann, O. [2 ]
Schrag, H. J. [2 ]
Vodermayer, B. [3 ]
Schmid, T. [3 ]
Goldschmidtboeing, F. [1 ]
机构：
[1] Univ Freiburg, Dept Microsyst Engn IMTEK, Georges Kohler Allee 102, D-79110 Freiburg, Germany
[2] Univ Hosp Freiburg, Dept Gene & Visceral Surg, D-79110 Freiburg, Germany
[3] German Aerosp Ctr DLR, Inst Robot & Mechatron, Wessling, Germany
来源：
4TH EUROPEAN CONFERENCE OF THE INTERNATIONAL FEDERATION FOR MEDICAL AND BIOLOGICAL ENGINEERING | 2009年 / 22卷 / 1-3期
关键词：
Piezoactuator; driving electronics; charge recovery; low-voltage; micropump; ACTUATORS;
D O I：
暂无
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
摘要：
We present our current developments in the GASS project. GASS is an implantable sphincter prosthesis driven by a micropump. The aim of the previous stages of this project was to demonstrate the feasibility of the approach. Currently we focus on the safety and efficiency of the micropump. A low-voltage multilayer actuator was developed to reduce the driving voltage of the micropump from approximately 300 Vpp to 30 Vpp. A miniaturized driving circuit with charge recovery is currently developed. The overall efficiency of the micropump system is in the range of 2% depending on the hydraulic conditions. Different approaches for the energy management of the prosthesis and the resulting size, weight and lifetime are presented.
引用
收藏
页码：2360 / 2363
页数：4
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