Guide wire structure

A guide wire structure comprises a coil body, a front end joint body, a cylindrical body, a core shaft and a pull wire, and the coil body is coiled in a spiral shape; the front-end joint body is fixedly arranged at the front end of the coil body; the front end of the cylindrical body is fixedly connected with the base end of the coil body; the core shaft is movably arranged in the barrel-shaped body and can move in the axial direction of the barrel-shaped body; the stay wire is arranged in the inner cavity and the core shaft and is led out from the base end of the core shaft; and the stay wire can pull the core shaft to axially move in the cylindrical body so as to adjust the rigidity of the front end of the guide wire. When the front end of the core shaft extends into the coil body to the maximum extent, the rigidity of the front end of the guide wire is maximum, so that the supporting property and the pushing capacity can be enhanced; when the front end of the mandrel is completely located outside the coil