Split electrodes for electrical-conductivity-based tissue discrimination

Split electrodes for electrical-conductivity-based tissue discrimination

This work presents a method to minimize the inadvertent cutting of tissues in surgeries involving bone drilling. We present electrical impedance measurements as an assistive technology to image-guided surgery to achieve online guidance. Proposed concept is to identify and localize the landmarks via impedance measurements and then use this information to superimpose the estimated drilling trajectory on the offline maps obtained by pre-operative imaging. To this end., we propose an asymmetric electrode geometry., split electrodes., capable of distinguishing impedance variations as a function of rotation angle. The feasibility of the proposed approach is verified with numerical analysis. A probe with stainless steel electrodes has been fabricated and tested with a technical phantom. Although the results are impacted by a non-ideality in the phantom., we could show that the variation of impedance as a function of rotation angle can be used to localize the regions with different impedivities. Clinical Relevance- Presented approach may be used to minimize the inadvertent cutting of tissues in surgeries involving bone drilling.

 

Learn more about the ISX-3 impedance analyzer

Sciospec ISX-3
Class-Leading Impedance analyzer, the Sciospec ISX-3

Get to know the ISX-3 impedance analyzer

Or check out the Medical Research ISX-3

 

Latest Products

  • Sciospec EIT-lung imaging kit for impedance tomography
    LungEIT Kit

    The Sciospec LungEIT Kit is your turn-key, easy entry into lung imaging with impedance tomography.

    Learn more
  • Sciospec LCR-1
    LCR Meter
    0.00

    powerful, yet easy to use LCR meter

    Learn more
  • Medical Research ISX-3
    0.00

    scalable impedance analyzer with medical grade safety features

    Learn more

Get in touch with us

+49 3425 88399 00

info@sciospec.com

Sciospec Scientific Instruments GmbH
Leipziger Str. 43b, 04828 Bennewitz, Germany