Development of a fully implantable wireless pressure monitoring system

Tan, Robert; McClure, Timothy; Lin, C. K.; Jea, David; Dabiri, Foad; Massey, Tammara; Sarrafzadeh, Majid; Srivastava, Mani; Montemagno, C. D.; Schulam, Peter; Schmidt, Jacob

doi:10.1007/s10544-008-9232-1

Published: 03 October 2008

Development of a fully implantable wireless pressure monitoring system

Robert Tan¹,
Timothy McClure²,
C. K. Lin¹,
David Jea³,
Foad Dabiri⁴,
Tammara Massey⁴,
Majid Sarrafzadeh⁴,
Mani Srivastava³,
C. D. Montemagno⁵,
Peter Schulam² &
Jacob Schmidt¹

Biomedical Microdevices volume 11, pages 259–264 (2009)Cite this article

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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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Acknowledgements

The authors would like to thank Robert Schaeffer, Andy Chen, Tony Kennestrasi, Virgil Mancion, David Choi, Anthony Hernandez and Ed Chernoff of Medtronic for their support and expertise in this field. Also, Tim Canan, Neil Boroumand, Jason Poulos, Dan Garcia, Dr. Alberto Breda, Dr. Hyunwoo Bang helped on this project. The United States Army Telemedicine and Advanced Technology Research Center (TATRC) provided financial support.

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Affiliations

Department of Bioengineering, University of California, Los Angeles, CA, 90095, USA
Robert Tan, C. K. Lin & Jacob Schmidt
Department of Urology, University of California, Los Angeles, CA, 90095, USA
Timothy McClure & Peter Schulam
Department of Electrical Engineering, University of California, Los Angeles, CA, 90095, USA
David Jea & Mani Srivastava
Department of Computer Science, University of California, Los Angeles, CA, 90095, USA
Foad Dabiri, Tammara Massey & Majid Sarrafzadeh
College of Engineering, University of Cincinnati, Cincinnati, OH, 45221, USA
C. D. Montemagno

Authors

Robert Tan
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Timothy McClure
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C. K. Lin
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David Jea
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Foad Dabiri
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Tammara Massey
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Majid Sarrafzadeh
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Mani Srivastava
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C. D. Montemagno
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Peter Schulam
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Jacob Schmidt
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Correspondence to Jacob Schmidt.

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Cite this article

Tan, R., McClure, T., Lin, C.K. et al. Development of a fully implantable wireless pressure monitoring system. Biomed Microdevices 11, 259–264 (2009). https://doi.org/10.1007/s10544-008-9232-1

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Published: 03 October 2008
Issue Date: February 2009
DOI: https://doi.org/10.1007/s10544-008-9232-1

Keywords

MEMS
Pressure sensor
Implantable
Patient monitoring
Telemetry
Telemedicine
Bladder
Wireless