Patent ID: 6872191

Claim:
A self-destructive syringe comprising: a) a hollow needle barrel having: i) an adaptor located on a first end; ii) a retaining ring located on an interior thereof; and iii) a receiving slot located between the retaining ring and the adaptor; b) a needle base inserted on the adaptor; c) a needle case inserted on the needle base; and d) a push rod having: i) a rubber head slidably inserted into the hollow needle barrel and having a hollow portion; ii) a bearing base having a clamping portion, a retaining slot and a step ring, the clamping portion of the bearing base being inserted into the hollow portion of the rubber head; and iii) a rod body having a retaining portion on a base portion moveable between connected and disconnected positions, wherein, when the retaining portion relative to this rubber head is in the connection position, the retaining portion is inserted into the retaining slot and engaging the step ring of the bearing base, and the rubber head and the bearing base are located in the hollow needle barrel between the retaining ring and a second end of the hollow needle barrel, and when the retaining portion is in the disconnected position, the retaining portion of the rod body is separated from the bearing base, and the rubber head and the bearing base are locked in the receiving slot by the retaining ring.