| 摘要 |
A safe blood sampling needle comprises a U-shaped sleeve (1), a T-shaped blood sampling core (12), a G-shaped safety protector (11), and a spring (17). The G-shaped safety protector (11) is provided with a guide core position (6), the spring (17) is mounted at an external diameter of the guide core position (6), and the T-shaped blood sampling core (12) is mounted at an internal diameter of the guide core position (6) of the G-shaped safety protector (11). The U-shaped sleeve (1) is mounted on the G-shaped safety protector (11), an arched step (4) is disposed at an inner end of the U-shaped sleeve (1) and stops a back arch abutment (13) of the T-shaped blood sampling core (12), and the back arch abutment (13) controls the spring (17) to form a static pressure. When the U-shaped sleeve (1) is pressed, the arched step (4) interferes with the back arch abutment (13), and meanwhile, the spring (17) bounces the T-shaped blood sampling core (12) together with a needle head (16) to an internal space (18) of the U-shaped sleeve (1). The needle head (16) is not exposed before and after use of the safe blood sampling needle, which achieves the purpose of safety for not injuring a user or a patient due to a use fault and being harmless to the society after use. Besides, the present invention is also a new technical solution suitable for automatic production. |
