Lacrimal canal bracket with aliform fixing part

Abstract

The invention discloses a nasolacrimal duct bracket for wing-shaped fixed parts, which comprises a drainage tube and at least two wing-shaped fixed parts, wherein one end of the wing-shaped fixed part is fixed at the head end of the drainage tube, while the other end extends radically and obliquely. The nasolacrimal duct bracket for the wing-shaped fixed parts has the advantages that the bracket is convenient to collect tears and drain, can maintain smooth movement of the nasolacrimal duct, has simple manufacture, and so on.

Description

Nasolacrimal duct stent with winged fixation technical field The invention relates to a treatment tool for diseases such as nasolacrimal duct obstruction and chronic dacryocystitis, in particular to a nasolacrimal duct stent with a wing-shaped fixing part. Background technique Both nasolacrimal duct obstruction and chronic dacryocystitis are common eye diseases. At present, lacrimal duct exploration and rhinosacral dacryocystostomy are mainly used for treatment. Lacrimal duct exploration has little damage and is easy to operate, but its long-term effect is unstable and the recurrence rate is high. It is especially not suitable for the treatment of chronic dacryocystitis, so its application is limited to a certain extent. Among the current methods for the treatment of nasolacrimal duct obstruction and chronic dacryocystitis, dacryocystorhinostomy is more effective and has a higher success rate. There are scars on the face, and sometimes the operation cannot be performed du...

AI Technical Summary

Problems solved by technology

Lacrimal duct exploration has little damage and is easy to operate, but the long-term effect is unstable and the recurrence rate is high. It is especially not suitable for the treatment of chronic dacryocystitis, so its application is limited

Among the current methods for the treatment of nasolacrimal duct obstruction and chronic dacryocystitis, dacryocystorhinostomy is more effective and has a higher success rate. There are scars on the face, and sometimes the operation cannot be performed due to surgical contraindications; at the same time, the operation changes the original anatomical channel of the lacrimal duct. Once the postoperative anastomotic fibers form scars or ossification, the anastomotic stoma is blocked and the lacrimal duct is re-obstructed , lost the chance of reoperation

In order to reduce the surgical injury and not change the original anatomical channel of the lacrimal duct, there is currently a method of using nasolacrimal duct stents for treatment, but most of the fixing parts of the existing nasolacrimal duct stents have curved structures, and the main defects are: curved structures The production process is complicated, the bending and forming are difficult, and the bending angle is difficult to ensure uniformity; the bending part is easy to form a barrier to the common lacrimal duct, and it is not convenient for the collection and drainage of tears; Patient feels unwell

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