As human lifespan is extended, interest in healthcare and remote diagnosis is being continuously increased. However, conventional electrodes and sensors used in biology are difficult to use in convenience and portability in new remote medical systems. In particular, products using hydrogels, which are commonly used to measure blood pressure (BP) and electrocardiogram (ECG), rapidly deteriorate performance over time. In addition, a complicate process is required to acquisite more than one biosignal. In this study, wearable, portable, cuffless all-gel-based sensors to acquire the pulsation and ECG were developed, which is simultaneously measured them at a single-site. Poly (vinylidene fluoride-trifluoroethylene) gel and polyvinyl chloride ion gel were used for the pulsation and ECG measurement, respectively. An integrated gel sensor with stretchability and flexibility was fabricated and easily attached to the radial artery position. Then, pulsation and ECG were successfully measured at one point at the same time even after 30 days. After calculating the phase time difference between two signals, the algorithm for BP estimation was demonstrated.

随着人类寿命的延长，人们对医疗保健和远程诊断的兴趣也在不断增加。然而，生物学中使用的传统电极和传感器难以在新的远程医疗系统中方便和便携地使用。特别是使用水凝胶的产品，通常用于测量血压 (BP) 和心电图 (ECG)，随着时间的推移会迅速降低性能。此外，需要一个复杂的过程来获取一个以上的生物信号。在这项研究中，开发了可穿戴、便携式、无袖带全凝​​胶传感器来获取脉动和心电图，并在一个站点同时测量它们。聚（偏二氟乙烯-三氟乙烯）凝胶和聚氯乙烯离子凝胶分别用于脉动和心电图测量。制造了具有可拉伸性和柔韧性的集成凝胶传感器，并易于连接到桡动脉位置。然后，即使在 30 天后，脉搏和心电图也成功地同时测量了一个点。在计算了两个信号之间的相位时间差后，演示了 BP 估计算法。