The fabrication and integration of a 15 MHz array within a biopsy needle

Rachael McPhillips (Lead / Corresponding author), Sandy Cochran, Sarah Vinnicombe, David Watson, Jun Gao, Marc P. Y. Desmulliez, Christine E. M. Démoré

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

    2 Citations (Scopus)
    168 Downloads (Pure)


    It is proposed that integrating ultrasound transducer arrays at the tip of tools such as biopsy needles could enable valuable, real-time image feedback during interventional procedures. High-resolution ultrasound imaging has the potential to aid navigation of interventional tools, and to assist diagnosis or treatment via in-vivo tissue characterisation in the breast, amongst many other applications. In order to produce miniature transducer arrays incorporated within biopsy needle-sized packages (2 - 5 mm diameter), the challenges in micromachining and handling transducer materials at this scale must be overcome. This paper presents fabrication processes used in the micromachining of a 16 element 15 MHz PIN-PMN-PT piezocrystal-polymer composite array and its integration into an 11 G breast biopsy needle. Particular emphasis is given to the manufacturing of the 1-3 dice-and-fill piezocrystal composite, and establishing electrical interconnects. Characterisation measurements have demonstrated operation of each of the 16 elements within the needle case.
    Original languageEnglish
    Title of host publication2017 IEEE Ultrasonics Symposium (IUS)
    Place of PublicationUnited States
    Number of pages4
    ISBN (Electronic)9781538633830
    ISBN (Print)9781538633847
    Publication statusPublished - 2 Nov 2017
    Event2017 IEEE International Ultrasonics Symposium - Washington D.C., United States
    Duration: 6 Sept 20179 Sept 2017

    Publication series

    NameIEEE International Ultrasonics Symposium
    ISSN (Print)1948-5719


    Conference2017 IEEE International Ultrasonics Symposium
    Country/TerritoryUnited States
    CityWashington D.C.
    Internet address


    • array
    • needle
    • ultrasound transducer
    • breast imaging


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