Non-PVC precise filter transfusion-system mandrel-free high-frequency welding device

The utility model relates to a non-PVC precise filter transfusion-system mandrel-free high-frequency welding device, which belongs to the processing device of clinical vein transfusion apparatus, andcomprises a high-frequency welding head component, and is characterized in that the high-frequency welding head component is arranged inside a closed vacuum welding barrel, a power supply leading wireof the high-frequency welding head component extends outside the vacuum welding barrel, and at least one side wall of the vacuum welding barrel is provided with a closing door. By improving the priorart, since a venturi of the prior art is processed at a vacuum state, and the devices of the prior art are creatively combined in an optimization way, the pipe is free from having a mandrel for shaping as the prior art during the production, so that the working efficiency is improved, and the possibility of the mass production is realized. The device has the advantages that the structure is simple and the mass welding proc