In this paper, a small, compact, and intelligent pediatric portable pacifier is proposed to measure and assess Non-Nutritive Sucking (NNS) activity in premature infants. A prototype of the system is implemented on a $21\times24$ mm2 printed circuit board, which is small enough to be completely embedded on the back of all commercial pacifiers. The system portability allows it to be easily used in space-limited biomedical applications without dealing with any special electronic instruments or technical knowledge. The measured NNS data is stored on an on-board memory card in order to be analyzed by smartphones and computers. Experimental results confirmed that the proposed system is a proper tool for measuring and evaluating NNS data. The parameters extracted from the NNS signal represent crucial information on the physical growth, neural development, and integrity of the central nervous system of premature infants.

中文翻译：

---

一种用于评估早产儿非营养性吸吮的紧凑型儿科便携式安抚奶嘴

在本文中，提出了一种小巧、紧凑、智能的儿科便携式安抚奶嘴，用于测量和评估早产儿的非营养性吸吮 (NNS) 活动。该系统的原型是在一块 21 美元\乘以 24 美元 mm2 的印刷电路板上实现的，该电路板小到可以完全嵌入所有商用奶嘴的背面。系统的便携性使其可以轻松地用于空间有限的生物医学应用，而无需处理任何特殊的电子仪器或技术知识。测得的 NNS 数据存储在板载存储卡上，以便智能手机和计算机进行分析。实验结果证实，所提出的系统是用于测量和评估 NNS 数据的合适工具。从 NNS 信号中提取的参数代表了关于身体发育、神经发育、