A generic packaging technique using fluidic isolation for low-drift implantable pressure sensors

A. Kim, C. R. Powell, B. Ziaie

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper reports on a generic packaging method for reducing drift in implantable pressure sensors. The described technique uses fluidic isolation by encasing the pressure sensor in a liquid-filled medical-grade polyurethane balloon; thus, isolating it from surrounding aqueous environment that is the major source of baseline drift. In-vitro tests using commercial micromachined piezoresistive pressure sensors show an average baseline drift of 0.006 cmH2O/day (0.13 mmHg/month) for over 100 days of saline soak test, as compared to 0.101 cmH2O/day (2.23 mmHg/month) for a non-fluidic-isolated one soaked for 18 days. To our knowledge, this is the lowest reported drift for an implantable pressure sensor.

Original languageEnglish (US)
Title of host publication2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages476-479
Number of pages4
ISBN (Electronic)9781479989553
DOIs
StatePublished - Aug 5 2015
Event18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015 - Anchorage, United States
Duration: Jun 21 2015Jun 25 2015

Publication series

Name2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015

Other

Other18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015
CountryUnited States
CityAnchorage
Period6/21/156/25/15

Keywords

  • Baseline-drift
  • Implantable Sensor
  • Pressure Sensor

ASJC Scopus subject areas

  • Instrumentation
  • Electrical and Electronic Engineering

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  • Cite this

    Kim, A., Powell, C. R., & Ziaie, B. (2015). A generic packaging technique using fluidic isolation for low-drift implantable pressure sensors. In 2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015 (pp. 476-479). [7180964] (2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/TRANSDUCERS.2015.7180964