A micro-tactile sensor for in situ tissue characterization in minimally invasive surgery

Mohammad Qasaimeh, S. Sokhanvar, J. Dargahi, M. Kahrizi

    Research output: Contribution to journalArticle

    Abstract

    This study presents and characterizes a micro-tactile sensor that can be integrated within MIS graspers. The sensor is capable of measuring contact forces and characterizing softness. The grasping forces are distributed normally, though in some cases concentrated loads also appear at the contact surfaces. In the latter case, the position of the concentric load can also be determined. This enables the sensor to detect hidden anatomical features such as embedded lumps or arteries. The microfabricated piezoelectric-based sensor was modeled both analytically and numerically. In a parametric study the influence of parameters such as length, width, and thickness of the sensor was studied using a finite element model. The sensor was microfabricated and tested using elastomeric samples. There is a good conformity between the experimental and theoretical results.

    Original languageEnglish (US)
    Pages (from-to)823-837
    Number of pages15
    JournalBiomedical Microdevices
    Volume10
    Issue number6
    DOIs
    StatePublished - Jun 26 2008

    Fingerprint

    Minimally Invasive Surgical Procedures
    Touch
    Surgery
    Arteries
    Tissue
    Sensors
    Management information systems
    elastomeric

    Keywords

    • Endoscopic graspers
    • Micro-tactile sensor
    • Minimally Invasive Surgery (MIS)
    • Tissue characterization

    ASJC Scopus subject areas

    • Biomedical Engineering
    • Molecular Biology

    Cite this

    A micro-tactile sensor for in situ tissue characterization in minimally invasive surgery. / Qasaimeh, Mohammad; Sokhanvar, S.; Dargahi, J.; Kahrizi, M.

    In: Biomedical Microdevices, Vol. 10, No. 6, 26.06.2008, p. 823-837.

    Research output: Contribution to journalArticle

    Qasaimeh, Mohammad ; Sokhanvar, S. ; Dargahi, J. ; Kahrizi, M. / A micro-tactile sensor for in situ tissue characterization in minimally invasive surgery. In: Biomedical Microdevices. 2008 ; Vol. 10, No. 6. pp. 823-837.
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