TY - GEN
T1 - Evaluation of stability and effect of gripping method on a laser-induced liquid jet hand applicator for usability improvement
AU - Kato, Takashi
AU - Arafune, Tatsuhiko
AU - Washio, Toshikatsu
AU - Yamauchi, Yasushi
AU - Nakagawa, Atsuhiro
AU - Ogawa, Yoshikazu
AU - Tominaga, Teiji
AU - Sakuma, Ichiro
AU - Kobayashi, Etsuko
N1 - Publisher Copyright:
Copyright 2014 Human Factors and Ergonomics Society.
PY - 2014
Y1 - 2014
N2 - We developed a pulsed laser-induced liquid jet (LILJ) system to dissect tumor tissues while preserving fine blood vessels within deep and narrow working spaces and evaluated its utility and safety. However, the hand applicator of LILJ is heavy for the operator because of the torque generated by some of the accessories. Consequently, the operator cannot work with precision. To overcome this problem, we ergonomically redesigned the hand applicator of LILJ. Here, we report an assessment of the redesigned hand applicator's usability and stability that were evaluated by using the torque generated around the center of gravity of the hand applicator and the hit probability. We considered the load on the hand by force measured using a forcesensitive sensor attached to the hand applicator. We showed that three out of five subjects were able to generate enough force equally to stabilize the position of the proposed hand applicator after a disturbance was generated and were able to reduce the force enough to control the disturbance.
AB - We developed a pulsed laser-induced liquid jet (LILJ) system to dissect tumor tissues while preserving fine blood vessels within deep and narrow working spaces and evaluated its utility and safety. However, the hand applicator of LILJ is heavy for the operator because of the torque generated by some of the accessories. Consequently, the operator cannot work with precision. To overcome this problem, we ergonomically redesigned the hand applicator of LILJ. Here, we report an assessment of the redesigned hand applicator's usability and stability that were evaluated by using the torque generated around the center of gravity of the hand applicator and the hit probability. We considered the load on the hand by force measured using a forcesensitive sensor attached to the hand applicator. We showed that three out of five subjects were able to generate enough force equally to stabilize the position of the proposed hand applicator after a disturbance was generated and were able to reduce the force enough to control the disturbance.
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U2 - 10.1177/1541931214581372
DO - 10.1177/1541931214581372
M3 - Conference contribution
AN - SCOPUS:84957669437
T3 - Proceedings of the Human Factors and Ergonomics Society
SP - 1786
EP - 1789
BT - 2014 International Annual Meeting of the Human Factors and Ergonomics Society, HFES 2014
PB - Human Factors an Ergonomics Society Inc.
T2 - 58th International Annual Meeting of the Human Factors and Ergonomics Society, HFES 2014
Y2 - 27 October 2014 through 31 October 2014
ER -