Double-tube type lacrimal passage drainage device

Abstract

The invention discloses a double-tube type lacrimal passage drainage device. A hanging mechanism and an adhering fixing mechanism are arranged on an implanting tube. The implanting tube adopts a two-section connection mode, and two sections are made of different materials and have different functions. One section is made of a nylon material and has a traction effect, the use purpose is to place asilica gel lacrimal passage tube into a lacrimal passage without depending on other auxiliary tools, meanwhile the silica gel lacrimal passage tube can be smoothly led out from the nasal cavity, the material has certain hardness and also has certain flexibility, the silica gel lacrimal passage tube has enough strength to pass through the lacrimal passage and can also be coiled after entering the nasal cavity, and accordingly the lacrimal passage tube is bulged out of the nasal cavity. The other section is made of a silica gel material and has an implanting treatment effect, the silica gel lacrimal passage tube is fed into the lacrimal passage through the traction effect of a nylon material traction tube, two sections of silica gel tubes are connected through a section of solid silica gel tube, the solid silica gel tube is placed at the canthus, the lower portion of the solid silica gel tube is fixed in the nasal cavity in a knotting mode, and the double-tube type lacrimal passage drainage device is wide in application range, high in safety, simple and convenient to operate and good in fixing effect.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a double-tube lacrimal duct drainage device. Background technique [0002] Neonatal lacrimal duct obstruction is mostly caused by blocked nasolacrimal duct. Usually, the outlet of neonatal nasolacrimal duct has a membrane closed. Most newborns will automatically rupture the membrane when they produce tears (usually after birth. 3-4 weeks), the lacrimal duct begins to unblock. However, a few newborns have thicker closed membranes, or because of congenital stenosis of the nasolacrimal duct or deformity of the nasal septum, the lacrimal duct is blocked, and tears will be retained in the lacrimal sac. The humidity in the lacrimal sac is most suitable for the growth and reproduction of bacteria. Once infected, tears will become pus. [0003] Lacrimal duct obstruction is a common and frequently-occurring disease in ophthalmology. It is a disease that often occurs at the junction of the...

AI Technical Summary

Problems solved by technology

However, the lacrimal drainage tubes currently used in the market have the following disadvantages. One type of lacrimal drainage tube needs to be operated with a steel needle in the tube and a hooking tool. This method is difficult to operate and may easily cause nasal mucosal damage. The drainage tube is partially implanted. This method has a small range of indications. At the same time, because there is no lower part fixed, it is prone to prolapse during use.

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