Continuous drainage and anti-blocking nasolacrimal duct drainage device

The invention discloses a continuous drainage and anti-blocking nasolacrimal duct drainage device which is characterized by comprising a drainage tube and a limiting edge, the section, in the vertical direction, of the drainage tube is arranged in a cross shape. The four ends of the drainage tube are each provided with one limiting edge. The drainage tube and the four limiting edges form a first channel, a second channel, a third channel and a fourth channel. Through the application of the nasolacrimal duct drainage device, the continuous drainage and anti-blocking nasolacrimal duct drainage device is provided, the limiting edges are arranged at the four ends of the drainage tube and tightly attached to the inner wall of the lacrimal passage, and the drainage tube and the limiting edges form the first channel, the second channel, the third channel and the fourth channel; the four channels can effectively drain nasolacrimal ducts of patients suffering from lacrimal passage blockage, the drainage effect is bett