A kind of auxiliary device for diagnosis and treatment of lacrimal duct and its application

Abstract

The invention relates to the field of lacrimal duct diagnosis and treatment, in particular to a lacrimal duct diagnosis and treatment auxiliary device and its application. The structure of the device is as follows: a part of the side wall of the flexible channel forms an outwardly expanding expansion; the device channel is arranged inside the flexible channel, a part of the side walls of the device channel also forms an outwardly expanding expansion, and the expanding part of the device channel is located in the flexible channel. In the enlarged part of the channel, one end of the device channel extends to the outside of the rear end of the flexible channel. The traction part includes a first through hole, a second through hole and a pulling wire, the first through hole and the second through hole are respectively arranged on the side wall of the flexible passage near the front end and the rear end, and one end of the pulling wire passes through the second through hole. The hole is bound at the rear end of the flexible channel, and the other end of the pulling wire extends from the inside of the flexible channel to the first through hole and passes through the first through hole. The device can establish a flexible channel between the nostril and the lacrimal canaliculus for instrument access and protection of the nasolacrimal duct, thereby successfully introducing various therapeutic devices and improving the effect of examination and treatment.

Description

technical field [0001] The invention relates to the field of lacrimal duct diagnosis and treatment, in particular to a lacrimal duct diagnosis and treatment auxiliary device and its application. Background technique [0002] The information disclosed in the Background of the Invention is only intended to increase the understanding of the general background of the invention, and is not necessarily to be taken as an acknowledgment or any form of suggestion that the information constitutes the prior art that is already known to those skilled in the art. [0003] Nasolacrimal duct obstruction is a common and frequently occurring disease in ophthalmology. Due to the anatomical characteristics of the lacrimal duct being narrow at the upper end and wide at the lower end, the axial direction is roughly consistent with the long axis of the human body. It is about 16mm above the bottom of the nose and about 30mm from the outer edge of the anterior nares. The axial extension of the la...

AI Technical Summary

Problems solved by technology

Due to the small diameter of lacrimal puncta and lacrimal canaliculus, the maximum diameter of the instruments used cannot exceed 1.2mm, and only thin light-guiding fiber bundles, lasers, and micro-trephines can be used, which will affect images and treatment effects. , that is, the problem of the diameter of the device has become a bottleneck restricting the development of technology, resulting in the inapplicability of many treatment technologies, such as synchronous injection and suction, re-drilling, fiber scissors, foreign body forceps, etc.

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