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Cantilever arrayed blood pressure sensor for arterial applanation tonometry

  • Byeungleul Lee
  • , Jinwoo Jeong
  • , Chanseob Cho
  • , Jinseok Kim
  • , Bonghwan Kim
  • , Hyeon Cheol Kim
  • , Kukjin Chun
  • Korea University of Technology and Education
  • Seoul National University
  • Korea Institute of Science and Technology
  • Catholic University of Daegu
  • University of Ulsan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

We developed a cantilever-arrayed blood pressure sensor array fabricated by (111) silicon bulk-micromachining for the noninvasive and continuous measurement of blood pressure. The blood pressure sensor measures the blood pressure based on the change in resistance of the piezoresistor on a 5-μm-thick-arrayed perforated membrane and 20-μm-thick metal pads. The length and width of the unit membrane are 210 and 310 μm, respectively. The width of the insensible zone between adjacent units is only 10 μm. The resistance change over contact force was measured to verify the performance. The good linearity of the result confirmed that the PDMS package transfers the forces appropriately. The measured sensitivity was about 4.5%/N. The maximum measurement range and resolution of the fabricated blood pressure sensor were greater than 900 mmHg and less than 1 mmHg, respectively.

Original languageEnglish
Title of host publication8th Annual IEEE International Conference on Nano/Micro Engineered and Molecular Systems, IEEE NEMS 2013
Pages907-910
Number of pages4
DOIs
StatePublished - 2013
Event8th Annual IEEE International Conference on Nano/Micro Engineered and Molecular Systems, IEEE NEMS 2013 - Suzhou, China
Duration: 7 Apr 201310 Apr 2013

Publication series

Name8th Annual IEEE International Conference on Nano/Micro Engineered and Molecular Systems, IEEE NEMS 2013

Conference

Conference8th Annual IEEE International Conference on Nano/Micro Engineered and Molecular Systems, IEEE NEMS 2013
Country/TerritoryChina
CitySuzhou
Period7/04/1310/04/13

Keywords

  • Blood pressure sensor
  • contact force sensor
  • PDMS

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