Force Measurement of Laparoscopic Instrument Tip during Dissection Procedure

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  • Yoshida Kenji
    Department of Urology, Graduate School of Medicine, Kansai Medical University
  • Kinoshita Hidefumi
    Department of Urology, Graduate School of Medicine, Kansai Medical University
  • Kuroda Yoshihiro
    Graduate School of Engineering Science, Osaka University
  • Oshiro Osamu
    Graduate School of Engineering Science, Osaka University
  • Matsuda Tadashi
    Department of Urology, Graduate School of Medicine, Kansai Medical University

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Other Title
  • 剥離操作における腹腔鏡手術用鉗子先端の作用力計測
  • ハクリ ソウサ ニ オケル フククウキョウ シュジュツヨウ カンシ センタン ノ サヨウリョク ケイソク

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Description

When comparing a single stroke dissection maneuver among surgeons with differing experience levels, there are major differences in the force applied to the instrument tip. However, it is difficult for expert surgeons to explain to novice surgeons in training the appropriate force during dissection procedure. We developed the force measurement system which can quantify the force pattern during single-stroke laparoscopic dissection maneuvers to reveal the factors related to expertise. Expert surgeons apply the most efficient vertical forces to make an initial dissection point and then change to the horizontal direction to separate surrounding tissues from the target organ. Measuring instrument tip force could help in understanding and improving the safety margin in laparoscopic surgical dissection.

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