A telemetric pressure sensor system for biomedical applications

被引：35

作者：

Ginggen, Alec ^{[1
]}

Tardy, Yanik ^{[2
]}

Crivelli, Rocco ^{[2
]}

Bork, Toralf ^{[2
]}

Renaud, Philippe ^{[3
]}

机构：

[1] Codman & Shurtleff Inc, Res & Dev, Raynham, MA 02767 USA

[2] Codman SA, Res & Dev, CH-2400 Le Locle, Switzerland

[3] Swiss Fed Inst Technol, Inst Microelect & Microsyst, CH-1015 Lausanne, Switzerland

来源：

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING | 2008年 / 55卷 / 04期

关键词：

biomedical applications; pressure sensors; sensor packaging; telemedicine;

D O I：

10.1109/TBME.2007.913908

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

A new implantable pressure sensor for long-term monitoring of intracranial pressured is presented. The sensor is powered by telemetry and can be interrogated wirelessly. A capacitive pressure transducer, whose capacitance is converted to a frequency-encoded signal by an application-specific integrated circuit (ASIC), senses the absolute pressure. The pressure-encoded signal, the ASIC input voltage, and onboard calibration parameters are transmitted to an external reading unit. The proposed novel packaging solution is designed for long-term stability and reliability of the sensor. The accuracy of sensor at body temperature is better than 2 mbar across a pressure range of 600-1200 mbar. The sensor is 13 mm in diameter and 4.5 mm in height.

引用

页码：1374 / 1381

页数：8

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