State Key Laboratory of Robotics and System, School of Mechatronics Engineering, Harbin Institute of Technology, Harbin, 150001, China.
Light Industry College, Harbin University of Commerce, Harbin, 150028, China.
Adv Healthc Mater. 2024 Sep;13(22):e2302761. doi: 10.1002/adhm.202302761. Epub 2024 Jun 20.
The stomach is a vital organ in the human digestive system, and its digestive condition is critical to human health. The physical movement of the stomach during digestion is controlled by the circular and oblique muscles. Existing stomach simulators are unable to realistically reproduce the physical movement of the stomach. Due to the complexity of gastric motility, it is challenging to simulate and sense gastric motility. This study proposes for the first time a bionic soft robotic stomach (BSRS) with an integrated drive and sensing structure inspired by origami and self-powered sensing technology. This soft stomach (SS) can realistically simulate and sense the movements of various parts of the human stomach in real-time. The contraction force and contraction rate of the BSRS are investigated with different viscosity contents, and the experimental values are similar to the physiological range (maximum contraction force is 3.2 N, and maximum contraction rate is 0.8). This paper provides an experimental basis for the study of gastric digestive medicine and food science by simulating the peristaltic motion of the BSRS according to the human stomach and by combining the triboelectric nanogenerator (TENG) sensing technology to monitor the motion of the BSRS in real-time.
胃是人体消化系统中的重要器官，其消化状况对人体健康至关重要。胃在消化过程中的物理运动由环形和斜形肌肉控制。现有的胃模拟器无法真实地再现胃的物理运动。由于胃动力的复杂性，模拟和感知胃动力具有挑战性。本研究首次提出了一种基于折纸和自供电传感技术的仿生软机器人胃（BSRS），具有集成驱动和传感结构。这种软胃（SS）可以实时真实地模拟和感知人体胃的各个部位的运动。研究了 BSRS 在不同粘度含量下的收缩力和收缩率，实验值与生理范围相似（最大收缩力为 3.2 N，最大收缩率为 0.8）。本文通过根据人体胃模拟 BSRS 的蠕动运动，并结合摩擦纳米发电机（TENG）传感技术实时监测 BSRS 的运动，为胃消化医学和食品科学的研究提供了实验基础。
