Wire-Driven microforceps for a neurosurgery support system

Toshikazu Kawai*, Kazutoshi Kan, Kouji Nlshizawa, Masakatsu Fujie, Takeyoshi Dohi, Kintomo Takakura, Kenzo Akazawa

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review


    An exchangeable microforceps for neurosurgery - which can be inserted into micromanipulators of a minimally invasive surgery-support system (called the hyper utility mechatronic assistant system, HUMAN) - was developed. This microforceps, which performs open-close operation at bending by means of a drive wire, is a single-opening type. It meets the specification of an outside diameter of 1 mm and a maximum holding force of 1 N, and a prototype was made of stainless steel by electric discharge machining. A microforceps drive-system was also constructed, and its dynamic characteristics were experimentally measured by a" laser-sensor system. The forceps was then applied in an experiment on a swine brain tissue in vivo, and it was confirmed that its holding function is good enough for practical use. The results of these two experiments are being applied so that the holding-part mechanism and its dynamic characteristics can be further improved for clinical use. It is concluded that this newly developed microforceps will be a great help in further developing minimally invasive neurosurgery using HUMAN.

    Original languageEnglish
    Pages (from-to)122-128
    Number of pages7
    JournalJapanese Journal of Medical Electronics and Biological Engineering
    Issue number2
    Publication statusPublished - 2003

    ASJC Scopus subject areas

    • Biomedical Engineering


    Dive into the research topics of 'Wire-Driven microforceps for a neurosurgery support system'. Together they form a unique fingerprint.

    Cite this