In disasters and emergency situations, it is necessary to immediately prescribe fluids such as 0.9% normal saline and glucose, as soon as a patient is rescued. However, the current gravity-based fluid infusion method requires a certain height, which reduces rescue efficiency and causes secondary medical accidents that injure rescuers or patients. In this study, we designed a non-powered medicine injector that uses elastic force and negative air pressure, rather than gravity, to address these issues, taking into account the challenges of using electricity in disaster situations. To design a non-powered medicine injector, we analyzed the advantages and disadvantages of existing products. Then we conducted in-depth interviews with four experts working in the field of emergency medicine to identify the problem, and based on this, we first designed a prototype of the product. To verify the feasibility of the prototype design, we conducted a few experiments comparing existing methods. And finally we proposed a final design of non-powered medicine injector.