摘要
The purpose of this study was to develop a new pipette design in which the pipette is operated by four fingers, taking into account the anatomy and anthropometry of the hand. The proposed new pipette designs were compared with a traditional thumb-push pipette based on muscle activity, wrist posture, subjective discomfort ratings for upper extremities, and user preference. The results of the study revealed that the four-finger, ergonomic pipette design reduced muscle exertion (25% reduction for aspiration and 35% reduction for dispensing), awkward wrist posture (33% reduction in wrist flexion, radial and ulnar deviation), and perceived discomfort in the wrist, hand and lower arm. Furthermore, most participants (9 of 10) who used a pipette in their daily work preferred the new pipette designs to a traditional thumb-push pipette design. Thus, we expect that this study will contribute to the reduction of WMSDs risk factors and pain.
摘要译文
这项研究的目的是开发一种新的移液器设计，其中要用四个手指操作移液器，同时要考虑到手的解剖结构和人体测量学。根据肌肉活动，腕部姿势，上肢主观不适等级和用户偏好，将建议的新移液器设计与传统的拇指移液器进行了比较。研究结果表明，四指符合人体工程学的移液器设计可减少肌肉活动（减少25％的抽吸，减少35％的分配），腕部姿势尴尬（减少33％的腕部屈曲，radial骨和尺骨偏斜），以及感觉到手腕，手和下臂有不适感。此外，大多数在日常工作中使用移液器的参与者（十分之九）更喜欢新的移液器设计，而不是传统的拇指推式移液器设计。因此，我们希望这项研究将有助于减少WMSD的危险因素和疼痛。
EunsikKim[a];FaisalAqlan[b];AndrisFreivalds[c]. Development of an ergonomic four-finger-push manual pipette design[J]. Applied Ergonomics, 2020,85