| abstract |
The utility model discloses a lacrimal duct artificial tube, comprising: soft outer tube and metal nook closing member, the intraductal activity cartridge of soft outer tube is sealed to the one end of soft outer tube has the unexpanded inner tube, and unexpanded inner tube outer wall directly forms the liquid circulation passageway with soft outer tube inner wall, and the metal nook closing member sets up in the unexpanded inner tube, be provided with the water injection pipe with liquid circulation passageway intercommunication on soft outer tube one side, the outside one end of water injection pipe can be opened and close, and the unexpanded inner tube passes through the outer wall intercommunication of connecting pipe and soft outer tube, and the connecting pipe setting is served at soft outer tube confined. The utility model injects the normal saline into the non-expansion inner tube, judges the position of the artificial tube according to the position of the outflow of the normal saline, and injects the normal saline into the liquid flowing channel, so that the volume of the sealing end is enlarged, and the artificial tube can be clamped and fixed at the inferior turbinate position under the action of the gravity of the normal saline, and the clamping of the artificial tube is more stable. The lacrimal duct artificial tube is stable in fixation, small in irritation to patients and strong in practicability. |