Lacrimal passage examination and treatment instrument

Abstract

The invention discloses a lacrimal passage examination and treatment instrument, and belongs to the technical field of medical instruments. The instrument comprises a lacrimal point expander with a lacrimal point sleeve and a flushing type soft lacrimal passage probe body which are arranged in a split mode. By means of the mode, the lacrimal point expander with the lacrimal point sleeve can expandaccording to needs to minimize lacrimal point damage, meanwhile, the lacrimal point sleeve supports the lacrimal point, frictional resistance caused by lacrimal point contractility disappears, and lacrimal passage probing is made to judge the blocking position more accurately; the probing direction of the soft lacrimal passage probe can be changed in the walking direction of the lacrimal passagelumen, the soft lacrimal passage probe turns towards the weak direction or the physiological lacrimal passage direction, and iatrogenic false passages are not likely to be generated; certain rigidityis achieved within a short distance, and a certain degree of stenosis and blockage can be probed through; meanwhile, a research method can be provided for the occurrence rate of anatomical differences(even if no lacrimal passage is blocked, the hard lacrimal passage probe cannot explore the lacrimal passage without resistance).

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a lacrimal duct inspection and treatment 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 puncta 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 ...

AI Technical Summary

Problems solved by technology

[0014] The main technical problem to be solved by the present invention is to provide a lacrimal duct inspection and treatment device including: a lacrimal point dilator with a lacrimal cannula and a flushing soft lacrimal duct probe; The device can solve the problem that the size of the puncta can not be controlled according to the needs, so that the puncta can be expanded in one step according to the needs, and the puncta can be damaged to the least extent, and the tissue damage can be reduced.

Images