Disposable patient end four-way interface assembly of sealed sputum sucking device

The utility model relates to a disposable patient end four-way interface assembly of a sealed sputum sucking device, which is characterized by comprising an interface body, wherein one end in the interface body is connected with a rotating interface core, and the other end is communicated with a valve body seat; a slide valve switch is installed on the valve body seat; the upper part of the interface body is also provided with a medicament injecting opening which is communicated with the interface body, and the lower part is communicated with a rotating joint; and the rotating interface core, the valve body seat provided with the slide valve switch, the medicament injecting opening and the rotating joint form the four-way interface assembly of a sealed sputum sucking pipe. When a medicament needs to be injected into a patient, the medicament can be injected into the body of the patient just from the medicament injecting opening 4 in such a way that a medicament injecting elbow is connected with a medicament injecting pipe. The utility model has simple and convenient and rapid operation and lightens the working strength for medical workers without any special device.