| 摘要 |
A disposable safe self-destruction insulin needle comprises an insulin needle body. A needle seat (1) is arranged in the insulin needle body. A spring fixed column (10) is arranged at the center of the upper surface of a needle tube base plate (9) of the needle seat (1). At least one elastic sheet (11) is distributed on the inner wall of the upper part of the needle seat (1). The elastic sheet (11) is obliquely arranged on the inner wall of the inner cavity of the needle seat (1). A spring (6) is sleeved on the spring fixed column (10). One end of the spring (6) is downwards abutted against the upper surface of the needle tube base plate (9), and the other end of the spring (6) is upwards abutted against a safety protection sleeve (5). The lower end of the safety protection sleeve (5) is provided with a safety clamping seat (4). A self-destruction pressing seat (3) is sleeved on the spring (6). The upper section part of the self-destruction pressing seat (3) is located in the cavity of the safety protection sleeve (5). The insulin needle adopts a sleeving connection type linage structure, the spring (6) in the middle shaft position is utilized for realizing the instantaneous reset of the safety protection sleeve (5), the needle tube is enabled not to be outwards exposed, the elastic sheets (11) in non-uniform distribution on the inner wall of the needle seat (1) are used for realizing the deflection inclination of the self-destruction pressing seat (3), and the insulin needle is enabled not to be used for a second time, so the safe self-destruction of the insulin needle is realized. |
