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    Force Prediction of Composite-coated Needle Moving Inside Tissues

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    PatelEtAl-Poster-2023.pdf
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    Genre
    Poster (Research)
    Date
    2023-02-23
    Author
    Patel, Kavi
    Hutapea, Parsaoran cc
    Department
    Mechanical Engineering
    Subject
    Poster presentations
    Surgical technology
    Biomedical engineering
    Permanent link to this record
    http://hdl.handle.net/20.500.12613/8403
    
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    DOI
    http://dx.doi.org/10.34944/dspace/8370
    Abstract
    This research investigates the effectiveness of a composite coating consisting of Polydopamine (PDA), Polytetrafluoroethylene (PTFE), and Activated Carbon (C) to mitigate the potentially harmful effects of needle insertion forces. By evaluating the forces at the interface between the needle and tissue, this study aims to develop a model incorporating experimental and numerical approaches to better understand the mechanics of interfacial forces during coated needle insertion. The proposed model is divided into two components: frictional forces on the needle shaft, modeled using a modified Karnopp model with an elastic force component and cutting forces on the needle tip, modeled using a constant cutting coefficient for a given tissue and insertion speed. Upon testing the model on bovine kidney tissue with a 35mm insertion depth, the results demonstrate that the difference between experimental and modeled insertion forces is in the range of 6.5-17.1% for bare and coated needle. Notably, this difference in the insertion force model is expected when working with real tissues, which possess highly complex structures.
    Description
    Poster presented at Temple University's 2023 Engineers Week Graduate Research Poster Competition in the College of Engineering, which took place February 23, 2023, in Philadelphia, PA.
    Citation
    Patel, K., & Hutapea, P. (2023, February 23). Force Prediction of Composite-coated Needle Moving Inside Tissues. Poster presented at Temple University's 2023 Engineers Week Graduate Research Poster Competition in the College of Engineering, Philadelphia, PA.
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