Development of a fully implantable wireless pressure monitoring system |
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| Authors: | Robert Tan Timothy McClure C. K. Lin David Jea Foad Dabiri Tammara Massey Majid Sarrafzadeh Mani Srivastava C. D. Montemagno Peter Schulam Jacob Schmidt |
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| Affiliation: | (1) Department of Bioengineering, University of California, Los Angeles, CA 90095, USA;(2) Department of Urology, University of California, Los Angeles, CA 90095, USA;(3) Department of Electrical Engineering, University of California, Los Angeles, CA 90095, USA;(4) Department of Computer Science, University of California, Los Angeles, CA 90095, USA;(5) College of Engineering, University of Cincinnati, Cincinnati, OH 45221, USA |
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| Abstract: | A fully implantable wireless pressure sensor system was developed to monitor bladder pressures in vivo. The system comprises a small commercial pressure die connected via catheter to amplifying electronics, a microcontroller, wireless transmitter, battery, and a personal digital assistant (PDA) or computer to receive the wireless data. The sensor is fully implantable and transmits pressure data once every second with a pressure detection range of 1.5 psi gauge and a resolution of 0.02 psi. In vitro calibration measurements of the device showed a high degree of linearity and excellent temporal response. The implanted device performed continuously in vivo in several porcine studies lasting over 3 days. This system can be adapted for other pressure readings, as well as other vital sign measurements; it represents the first step in developing a ubiquitous sensing platform for telemedicine and remote patient monitoring. |
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| Keywords: | MEMS Pressure sensor Implantable Patient monitoring Telemetry Telemedicine Bladder Wireless |
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