Lacrimal passage valve probing and expanding instrument

Abstract

The invention discloses a lacrimal passage valve probing and expanding instrument, and belongs to the technical field of medical instruments. The instrument comprises a lacrimal point dilator body with a lacrimal point sleeve, a soft lacrimal passage probe with a dilating balloon and a soft lacrimal passage flusher. By means of the mode, the lacrimal point can be expanded in one step according toneeds, due to the lacrimal point sleeve, the lacrimal point hidden in the inner canthi is obvious, repeated traction, lacrimal point finding and other operations are not needed, and the lacrimal pointcan enter the lacrimal passage conveniently. The soft lacrimal passage probe cannot apply excessive force during probing, a false passage is not easy to form, the probe has obvious flexibility and can move downwards along a narrow cavity of the lacrimal passage to prevent iatrogenic false passage, and the dilating balloon can greatly dilate Hasner valve obstruction of the lower opening of the nasolacrimal duct, meanwhile, the soft lacrimal passage flusher can flush pus in a lacrimal sac and harmful substances such as valve probing bleeding, lacrimal passage damage caused when an infant struggles is avoided, operation time is shortened, tissue damage is reduced, and the curative effect is guaranteed.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a lacrimal valve probing and expansion device. Background technique [0002] At present, the inspection and treatment methods of lacrimal duct obstruction include: lacrimal duct flushing, lacrimal duct probing, etc. Probing of the lacrimal duct generally requires dilation of the lacrimal punctum first. The current tip of the punctal dilator is a cone with a diameter of 3-4mm. When performing punctal dilation, the doctor does not know when the dilation is in place. It can only be judged according to the doctor’s experience. There are often two situations: [0003] 1. Insufficient expansion, repeated expansion is required, repeated actions and operational friction increase tissue damage. [0004] 2. Excessive expansion, leading to lacrimal puncta damage or even punctal cracking, affecting tear drainage function. [0005] The size of the punctum is 0.2-0.3mm, and it can be expanded...

AI Technical Summary

Problems solved by technology

[0003] 1. Insufficient expansion, repeated expansion is required, repeated actions and operational friction increase tissue damage

[0004] 2. Excessive expansion, leading to lacrimal puncta damage or even punctal cracking, affecting tear drainage function

[0014] The punctum of infants is often covered by the skin of the inner canthus, and it is difficult to find it. It is difficult to expand the punctum or probing the lacrimal duct. Multiple searches and operations increase the pain and operation damage of the child.

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