Profile: Otter (China) Technology Co., Ltd. focuses on hypodermic and intravenous injections. The auto-destructive safety syringe is designed for hypodermic injection commonly used by nurses, doctors, dentists. It can even be self-administered by patients. Its design protects the user from needle-stick injury, and prevents reuse due to its auto-destructive mechanism. This closely resembles any ordinary disposable syringe with no extra spring mechanical parts or special sheath. The used syringe, with the needle inside, can be safely disposed in a single piece.