Joint Stiffness Compensation for Application in the EXTEND Hand Orthosis

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    103 Downloads (Pure)

    Abstract

    This paper presents a passive hand orthosis, called EXTEND, that can be used during activities of daily living. In the design a negative stiffness spring mechanism is incorporated to overcome the high finger joint stiffness of stroke patients with hypertonia. The passive mechanism can be easily tuned by the user to compensate a linear joint stiffness of 0.15 to 0.33 Nm/rad for each finger independently. A prototype was tested with four patients showing an increased functional ability of the hand during several tasks. With the orthosis, patients were better able to pick up mid-sized objects (5-7.5cm diameter) of different shapes.

    Original languageEnglish
    Title of host publicationBIOROB2018 : 7th IEEE International Conference on Biomedical Robotics and Biomechatronics
    PublisherIEEE Computer Society
    Pages677-682
    Number of pages6
    ISBN (Electronic)9781538681831
    DOIs
    Publication statusPublished - 9 Oct 2018
    Event7th IEEE RAS & EMBS International Conference on Biomedical Robotics and Biomechatronics, BioRob 2018
    : High Tech Human Touch
    - University Campus, Enschede, Netherlands
    Duration: 26 Aug 201829 Aug 2018
    Conference number: 7
    https://www.biorob2018.org/

    Conference

    Conference7th IEEE RAS & EMBS International Conference on Biomedical Robotics and Biomechatronics, BioRob 2018
    Abbreviated titleBioRob
    CountryNetherlands
    CityEnschede
    Period26/08/1829/08/18
    Internet address

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  • Cite this

    Haarman, C. J. W., Hekman, E. E. G., Prange, G. B., & Van Der Kooij, H. (2018). Joint Stiffness Compensation for Application in the EXTEND Hand Orthosis. In BIOROB2018 : 7th IEEE International Conference on Biomedical Robotics and Biomechatronics (pp. 677-682). [8487208] IEEE Computer Society. https://doi.org/10.1109/BIOROB.2018.8487208