Double-invasive pressure measuring conversion tube

The utility model relates to a double-invasive pressure measuring conversion tube, which comprises an invasive pressure measuring suite, an arterial indwelling needle and a central venous catheter, the device is characterized by further comprising a three-way valve, a pipe A, a pipe B and a pipe C, one end of the tube A is connected with the first end of the three-way valve, and the other end is connected with the arterial indwelling needle; one end of the tube B is connected with the second end of the three-way valve; one end of the pipe C is connected with the third end of the three-way valve, and the other end is connected with an invasive pressure measuring kit; the first end of the three-way valve is closed, the second end and the third end form a passage, and the central venous pressure can be measured; the second end of the three-way valve is closed, and the first end and the third end form a passage which can measure arterial blood pressure. By controlling the conduction path of the three-way valve an