Four-in-one guide wire lead-in device with wire entering from lateral portion

A four-in-one guide wire lead-in device with the wire entering from a lateral portion comprises a sliding sleeve pipe, and a sliding body arranged inside the sliding sleeve pipe, wherein an expansion pipe is arranged at the front end of the sliding sleeve pipe, a puncturing needle is arranged at the front end of the sliding body and is capable of sliding in the expansion pipe when the sliding body slides inside the sliding sleeve pipe, a central pipeline coaxial with the puncturing needle is arranged inside the sliding body, one lateral portion of the sliding body is provided with a guide wire lead-in mouth body extending out of the sliding sleeve pipe, a one-way guide wire pipeline is arranged inside the guide wire lead-in mouth body and is smoothly communicated with the central pipeline, the other lateral portion of the sliding body is provided with an injector connection body extending out of the sliding sleeve pipe, and the rear portion of the injector connection body is connected with an injector, an injection pipeline is arranged inside the injector connection body and is communicated with the central pipeline. The four-in-one guide wire lead-in device with the wire entering from the lateral portion simultaneously combines four operational procedures of puncture, expansion, blood return and guide wire leading in, the operations can be completed in one instrument, and therefore the efficiency of leading in the guide wire is improved.