The invention relates to the technical field of
nasal irrigation tubes, in particular to a disposable neonatal
nasal irrigation tube which comprises a negative pressure tube, one end of the negative pressure tube is in
butt joint with an exhaust tube of a negative pressure device, the other end of the negative pressure tube is connected with a
storage tube, and the end, away from the negative pressure tube, of the
storage tube is provided with a liquid inlet section and a vertical section communicated with the middle of the liquid inlet section. A soft head with a liquid inlet hole is detachably connected to the liquid inlet section in a
butt joint mode, a
piston block is arranged in the storage
pipe in a sealed and sliding mode, and the
piston block divides the storage
pipe into a negative pressure cavity and a
liquid storage cavity. The soft head is selected according to the size of the
nostril, the liquid inlet section is inserted into the
butt joint hole until the annular edge is embedded into the annular groove, the soft head is convenient to install, the soft head is plugged into the
nostril of the newborn, the negative pressure device is controlled to exhaust air, the
piston block moves leftwards under the negative pressure effect, liquid is sucked into the
liquid storage cavity, the piston block and the conical block continue to move leftwards, and the
insertion rod leaves the
insertion hole. The liquid
backflow prevention device is simple in structure, liquid
backflow is automatically and effectively avoided, and
operation safety is guaranteed.