摘要：Wearable devices have great application potential in the next generation of smart portable electronics,especially in the fields of medical monitoring,soft robotics,artificial intelligence,and human-machine *** flexible strain sensors are key components of wearable ***,existing piezoelectric flexible strain sensors have certain limitations in weak signal monitoring due to their large modulus and low *** solve this problem,the concept of Kirigami(paper-cutting)was introduced in this study to design the sensor *** comparing the Kirigami structures of different basic structures,the serpentine structure was determined as the basic configuration of the *** serpentine structure not only provides excellent tensile properties,but also significantly improves the sensitivity of the sensor,which performs well in monitoring weak *** this basis,the adhesion properties of the flexible sensor were analyzed and tested,and the optimal ratio of the substrate was selected for *** addition,a low-cost and rapid prototyping process for stretchable patches was established in this *** this technology,we prepared the sensor device and tested its ***,we successfully developed a flexible sensor with a sensitivity of 0.128 mV/μɛand verified its feasibility for wrist joint motion monitoring *** result opens up new avenues for the recovery care of tenosynovitis patients after surgery.