This study aims to elucidate whether the force applied by an infant's tongue differs or not depending on geometrical differences in the artificial nipples. We developed three sensorized artificial nipple devices using six small force sensors and we have measured the tongue force during sucking in 11 infants. As a result, we have showed that the order of sensor responses and sucking period are similar among different geometries of artificial nipples. However, we have also observed that the maximum force measured differed in different artificial nipples. Furthermore, we have also observed differences in the estimated velocity the tongue movement between individual infants. Overall, this study showed that it is feasible to measure the dynamic properties of artificial nipples toward the definition of clear recommendations for mothers that wish to select the appropriate artificial nipple for their babies on an individual basis. © 2021 Institute of Electrical Engineers of Japan. Published by Wiley Periodicals LLC.

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婴儿舌头对三种人工乳头施加的力的测量：与人工乳头形状和尺寸相关的动态动作的研究

本研究旨在阐明婴儿舌头施加的力是否因人工乳头的几何差异而不同。我们使用六个小力传感器开发了三个传感人工乳头装置，并测量了 11 名婴儿在吸吮过程中的舌头力。结果，我们已经表明，不同几何形状的人工乳头的传感器响应顺序和吸吮周期相似。然而，我们还观察到，在不同的人工乳头中测得的最大力是不同的。此外，我们还观察到个体婴儿之间舌头运动的估计速度存在差异。全面的，这项研究表明，测量人工乳头的动态特性是可行的，以便为希望根据个人情况为婴儿选择合适的人工乳头的母亲定义明确的建议。© 2021 日本电气工程师学会。由 Wiley Periodicals LLC 出版。