#$%^&*AU2014250608A120150514.pdf#####ABSTRACT Provided is a one-time blood collection structure primarily including a shell, a button, an elastic member, a needle body and a protective sheath. The needle body has a first end and a second end, and the first end of the needle body is arranged with a needle. The protective sheath is sleeved on the needle. The elastic member is arranged between the button and the second end of the needle body. Next, the above mentioned structure as a whole is disposed in the shell.CIA] 1/12 CIA C=) CIA Ln~ CK1D CYD 4.1 CIA (7n CIA1