Integrated central vein piezometric pipeline device

The utility model relates to the technical field of medical instruments, in particular to an integrated central vein pressure measuring pipeline device which comprises an infusion tube, a flow speed regulator, a three-way plug valve, an extension tube, a measuring scale and an extension tube fixing clamp. One end of the extension tube is connected with the other opening of the three-way plug valve in a hot melting mode, the included angle between the end, close to the three-way plug valve, of the infusion tube and the end, close to the three-way plug valve, of the extension tube is 90 degrees, the extension tube fixing clamp is arranged on the extension tube in a sliding mode, and the sliding direction of the extension tube fixing clamp is parallel to the axis of the extension tube. The whole extension tube fixing clamp is in a ring shape with a notch, and the extension tube fixing clamp is made of elastic materials. The functions of reducing the assembling procedures and improving the pressure measuring effi