Reduced penetration force through ultrasound activation of a standard needle: An experimental and computational study

Xiaochun Liao, Muhammad Sadiq, George Corner, Sandy Cochran, Zhihong Huang

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

    6 Citations (Scopus)

    Abstract

    Needle insertion in soft tissue has attracted considerable attention in recent years because of its applications in minimally invasive percutaneous procedures such as cancer biopsy and regional anaesthesia. Tissue deformation and needle deflection contingent on needle penetration force are common reasons behind needle placement errors, leading to missampling in biopsy, incomplete anaesthesia, and possible post-operative morbidity. In this paper, we report the design of an ultrasonic device, based on a piezoelectric transducer with a sandwich structure, to reduce the standard needle's penetration force and deflection. Experimental trials were carried out on brain-mimicking phantom and ex vivo porcine tissue. The results show that a standard needle with ultrasound actuation can achieve force reduction by 34.5% and deflection reduction by 38.3%. In addition, numerical simulation of static and dynamic forces was conducted. A comparison between experimental and computational results demonstrates very close agreement. All the experimental and computational results suggest success in the proposed ultrasonic device's ability to perform accurate biopsy and regional anaesthesia.

    Original languageEnglish
    Title of host publication2013 IEEE International Ultrasonics Symposium, IUS 2013
    PublisherIEEE
    Pages1436-1439
    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

    • Medical ultrasonic needle
    • Needle intervention
    • Penetration force reduction
    • Piezoceramic transducer

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