| 摘要 |
Catheter device, comprising a tubular catheter (1) which is connected at the proximal end to a catheter hub (2) having a hollow space (2a) which is open toward the proximal side, a needle (3) displaceable in the catheter (1) and connected at the proximal end to a needle hub (4) which is inserted in the catheter hub (2) such that the needle tip protrudes from the catheter, a needle guard in the form of a spring clip (5) displaceable on the needle (3), which spring clip is arranged in the hollow space (2a) of the catheter hub and provided with an engaging means which, during withdrawal of the needle from the catheter, cooperates with an engaging means (3a) on the needle such that the spring clip is removed with the needle from the catheter hub (2) while the spring clip covers and blocks the needle tip, wherein the spring clip (5) is held in the catheter hub (2) only by frictional engagement or by hooking of the edges with the inner surface of the hollow space (2a) of the catheter hub (2) until the engaging means (3a) on the needle cooperates with the engaging means on the spring clip (5) during withdrawal of the needle. |
