Golden Capsule is a power-free, gravity-free intravenous injection device designed for disaster rescue scenarios. Conventional IV systems can’t be easily transported to rubble-filled, mountainous, or narrow environments, and it can be difficult to achieve the full-drip rates often required in emergency situations using gravity-based methods. With Golden Capsule, rescuers do not have to hold IV packs in their hands because it employs elastic force and negative pressure to consistently administer medicine without relying on electricity. It can be easily adjusted for injection speed and even demonstrates an infusion rate 1.5 times faster than that of gravity-based IV systems, eliminating the need for manual squeezing of IV bags.