Effects of power levels and soft tissue loads on an ultrasonic planar tool driven by PMN-PT d31 plates

Yang Kuang, Muhammad Sadiq, Sandy Cochran, Zhihong Huang

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

    1 Citation (Scopus)

    Abstract

    Ultrasonic surgical instruments often suffer from significant performance variation because of the high power applied and the physical loading from soft tissue encountered in application. To study these effects in detail, an ultrasonic planar tool coupled either in the air or poultry breast tissue was driven by a bespoke resonance tracking and vibration stabilization system at different current amplitude levels, until the performance achieved the steady state, during which two frequency sweeps were conducted at the beginning and the final state, respectively. Results show that the electric impedance increased rapidly with current amplitude, partly resulting from the contact resistance in the electric circuit in the tool, which in turn generated intensive self-heating at high power. The resonant frequency shifted to lower values because of the high vibration velocity and the temperature increase of the piezoelectric material. The radiation resistance induced by the soft tissue loads increased with the coupling depth of the planar tool but decreased with the current levels.

    Original languageEnglish
    Title of host publication2013 IEEE International Ultrasonics Symposium, IUS 2013
    PublisherIEEE
    Pages1432-1435
    Number of pages4
    ISBN (Electronic)9781467356862
    DOIs
    Publication statusPublished - 1 Dec 2013
    Event2013 IEEE International Ultrasonics Symposium, IUS 2013 - Prague, Czech Republic
    Duration: 21 Jul 201325 Jul 2013

    Publication series

    NameIEEE International Ultrasonics Symposium, IUS
    ISSN (Print)1051-0117

    Conference

    Conference2013 IEEE International Ultrasonics Symposium, IUS 2013
    CountryCzech Republic
    CityPrague
    Period21/07/1325/07/13

    Keywords

    • High Power
    • Soft Tissue Loads
    • Surgical instrument
    • Ultrasonic

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  • Cite this

    Kuang, Y., Sadiq, M., Cochran, S., & Huang, Z. (2013). Effects of power levels and soft tissue loads on an ultrasonic planar tool driven by PMN-PT d31 plates. In 2013 IEEE International Ultrasonics Symposium, IUS 2013 (pp. 1432-1435). [6725245] (IEEE International Ultrasonics Symposium, IUS). IEEE. https://doi.org/10.1109/ULTSYM.2013.0363