Wireless impedance measurements for monitoring peripheral vascular disease

Dmitrijs Celinskis, Bruce C. Towe

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

1 Scopus citations

Abstract

Wireless microdevices powered by ultrasound energy have been fabricated to measure and telemeter tissue impedance spectrums for applications in peripheral vascular disease monitoring. The system is characterized by simplicity of the implant consisting of only two electrical components. Ex vivo testing shows the potential for constructing tissue impedance spectrum plots over the range from 10 Hz to 10 kHz by a device less than 1 mm in diameter and 1 cm long. The neurostimulator microdevice was powered by continuous waveform 650 kHz ultrasound with a swept-frequency amplitude modulation. The system was operated at safe ultrasound power levels on the order of 10-100 mW/cm<sup>2</sup>. The device proved to be sensitive and able to measure tissue impedances over a broad range. Volume conducted signals carrying impedance information from the microdevice were remotely detected by surface biopotential electrodes.

Original languageEnglish (US)
Title of host publication2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages6937-6940
Number of pages4
ISBN (Print)9781424479290
DOIs
StatePublished - Nov 2 2014
Event2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014 - Chicago, United States
Duration: Aug 26 2014Aug 30 2014

Other

Other2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014
CountryUnited States
CityChicago
Period8/26/148/30/14

ASJC Scopus subject areas

  • Health Informatics
  • Computer Science Applications
  • Biomedical Engineering

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    Celinskis, D., & Towe, B. C. (2014). Wireless impedance measurements for monitoring peripheral vascular disease. In 2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2014 (pp. 6937-6940). [6945223] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/EMBC.2014.6945223