Disposable lacrimal passage drainage tube and use method thereof

Abstract

The invention discloses a disposable lacrimal passage drainage tube and a using method thereof.The disposable lacrimal passage drainage tube comprises a nasolacrimal duct, the top end of the nasolacrimal duct is fixedly connected with a drainage tube, the drainage tube is slidably sleeved with a first fixing block, a connecting block is installed on the side wall of the first fixing block, and a rotating shaft is fixedly sleeved with the connecting block; the rotating shaft is rotationally sleeved with a first clamping block and a second clamping block, the other end of the first clamping block and the other end of the second clamping block are fixedly connected with a first connecting block and a second connecting block respectively, a clamping groove is formed in the first connecting block, and a protruding block is fixedly connected to the side wall of the second connecting block; the head of the probe can be thinned, tear and burst of lacrimal punctum after the probe stretches into the probe are avoided, the risk of secondary trauma of eyes of a patient is reduced, meanwhile, the conical probe facilitates the probe to stretch into the lacrimal passage, the working efficiency is improved, the drainage tube can be limited, the patient is prevented from inhaling the nasolacrimal duct into the deep position of the nasal cavity, tube drawing is convenient, and the operation is simple and convenient. And normal use of the drainage tube is facilitated.

Description

technical field [0001] The invention belongs to the field of medical devices, in particular to a disposable lacrimal duct drainage tube and a usage method thereof. Background technique [0002] When suffering from diseases such as chronic dacryocystitis, nasolacrimal duct obstruction, dacryocystor mucocele and ruptured lacrimal duct, the most effective treatment is surgery. Most patients are accompanied by ductal obstruction. At this time, simple Lacrimal cavity anastomosis cannot solve the problem of obstruction, so a lacrimal drainage tube is needed for drainage treatment. [0003] The probe head of the general lacrimal duct drainage tube on the market is round and blunt, thicker, which is easy to cause surgery-induced lacrimal puncta tear damage, easy to cause secondary damage to the patient's eyes, and reduce work efficiency at the same time. And generally the tail end of the lacrimal duct drainage tube is placed in the nasal cavity, so that the patient inadvertently su...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a disposable lacrimal duct drainage tube and its use method to solve the problem that the probe head of the general lacrimal duct drainage tube proposed in the above-mentioned background technology is round and blunt, which is relatively thick and easily causes surgical complications. Lacrimal puncta tear injury, easy to cause secondary damage to the patient's eyes, while reducing work efficiency, and generally the tail end of the lacrimal drainage tube is placed in the nasal cavity, making it easy for the patient to inhale the drainage tube deep into the nasal cavity inadvertently. It is difficult to remove the tube, and it is easy to cause secondary injury to the patient, which is not conducive to the normal use of the drainage tube, which brings the problem of product defects.

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