用心跳供电 中国科学家造出“自供电”心脏起搏器

Core Viewpoint - A groundbreaking micro pacemaker has been developed by a collaborative research team from institutions including the University of Chinese Academy of Sciences, Tsinghua University, Peking University, and Fuwai Hospital, which can self-power using the heart's own beats, addressing a significant limitation of traditional pacemakers that require battery replacements [1][3]. Group 1 - The new micro pacemaker is capsule-sized and can be implanted through a minimally invasive procedure via the femoral vein, significantly reducing surgical trauma compared to traditional pacemakers [3]. - This innovative device features a built-in micro power station that converts each heartbeat into approximately 40 microjoules of energy, exceeding the energy requirements for long-term operation of the pacemaker [3]. - The design includes a clever structure that allows key components to operate in magnetic suspension, minimizing friction and energy loss [5]. Group 2 - The technology has been successfully tested in animal models, specifically in pigs with arrhythmias, where it autonomously operated for one month, generating power from heartbeats while effectively regulating heart rhythm [5]. - This advancement represents a shift from traditional pacemakers, which require regular maintenance, to a more integrated solution that can accompany patients throughout their lives, enhancing the quality of life for heart disease patients [5].