Lacrimal valve probing and expanding device

Abstract

The invention discloses a lacrimal valve probing and expanding device, which belongs to the technical field of medical devices. It includes: punctal dilator with punctal cannula, soft lacrimal duct probe with dilation balloon and soft lacrimal duct irrigator. Through the above method, the present invention can make the puncta expand as needed in one step, and because of the existence of the punctal cannula, the puncta hidden in the inner canthus is obvious, and there is no need to repeatedly pull and search for the puncta to enter the lacrimal duct. convenient. The soft lacrimal duct probe cannot apply too much force when probing, and it is not easy to form a false tract. Because the probe has obvious flexibility, it can descend along the narrow lacrimal duct to prevent the generation of iatrogenic false ducts and expansion. The balloon can greatly expand the obstruction of the Hasner valve in the lower mouth of the nasolacrimal duct, and the soft lacrimal duct irrigation device can flush out the pus in the lacrimal sac and the harmful substances such as valve probing bleeding, and avoid damage to the lacrimal duct when infants and young children struggle. , reduce operation time, reduce tissue damage, and ensure curative effect.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a lacrimal valve probing and expanding device. Background technique [0002] The current inspection and treatment methods for lacrimal duct obstruction include: lacrimal duct irrigation, lacrimal duct probing, etc. The lacrimal duct probing is generally necessary to dilate the punctum first. The head end of the current 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 based on the doctor's experience. Two situations often occur: [0003] 1. If the expansion is not enough, repeated expansion is required, repeated actions and operating friction increase tissue damage. [0004] 2. Excessive expansion, resulting in punctum damage or even punctum cracking, affects the tear drainage function. [0005] The size of the puncta is 0.2-0.3mm, and it can be expanded up to 5 time...

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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