Since the Needlestick Safety and Prevention Act endorsed in 2000, healthcare industry has been looking for easy-to-use, functional reliable safety syringes at affordable cost. This demand has however not been satisfactory met yet despite variety safety syringe designs have been proposed, prototyped or commercialized. The major obstacle of adopting state-of-the-art safety syringes is its high cost and the concern of functional reliability.

Besides the factors such as syringe integrity, functional reliability, designing a safety syringe shall take user’s preferences into consideration. We are of the opinion that a good safety syringe shall at least meet following criteria: