Review of power supply for wearable medical devices

Various medical equipment has been invented and used, and the power sources used to power them have improved and progressed from the traditional metal batteries to the current bio-batteries. More sophisticated equipment requires higher demands on battery structure and performance. New technologies have led to a broader range of energy sources for batteries. This paper will describe and analyze the structure of energy power sources and their characteristics from the perspective of power sources, divided into those that derive energy from external sources and those that derive energy from the body’s biochemical reactions and movements. As technology advances, the battery’s energy source will become more versatile. Initially, rigid metal batteries were unsuitable for flexible implantable devices, but research has improved the structure of metal batteries and better-sealed packaging to avoid harming the human body. It has also developed remote power supply and human chemical energy batteries. The characteristics of these batteries are designed to serve the patient better and alleviate subsequent pain, which is also the direction of development.