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

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页码：2360 / 2363

页数：4

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