| 摘要 |
Disclosed in the present invention is a catheter which can protect an operator and a patient from the risk of a cut by a needle when discarded after use. For example, disclosed is a catheter which includes: a needle; a plug having a front end combined with the needle; a first case formed to surround the needle; a socket combined with the front end of the first case; a gear coupling the first case and the socket in the vertical direction while including sawteeth on the outer circumference of one side, and including a needle groove penetrated by the needle inside; a catheter hub coupled by the sawteeth of the gear; and a tube combined with the front end of the catheter hub. |
