Composite tear test strip

Abstract

A composite tear fluid detection strip, comprising: cotton thread and detection filter paper, the cotton thread and the detection filter paper are connected to each other, the cotton thread is arranged at the front end of the composite tear fluid detection strip, and is formed by combining multiple strands of cotton thread, and the detection filter paper is arranged on the composite tear fluid detection strip. The rear end of the type tear detection strip is strip-shaped as a whole, and a scale line with a unit of length is set on the detection filter paper, and a dyed line parallel to the scale line is set on the rear side of the joint position of the cotton thread and the detection filter paper. During tear detection, the cotton thread is in contact with the patient's eye tissue, which reduces the irritation to the patient's eye tissue and the patient's discomfort during tear detection. Setting the scale line on the detection filter paper makes the doctor's detection more convenient, intuitive, and precise. The front end of the detection filter paper is equipped with a dyeing line, and the dyeing agent on the dyeing line travels with the measured tear fluid during use, which can clearly show the wet front of the tear fluid, and provide a reliable basis for doctors to diagnose diseases such as tear secretion disorders in ophthalmology.

Description

Technical field [0001] The invention relates to the technical field of ophthalmology clinical detection, in particular to a composite tear test strip which is formed by combining cotton thread and detection filter paper, which not only overcomes the problem of irritation to ocular tissues, but also can accurately and intuitively understand the secretion of ocular surface. Background technique [0002] For a long time, in the clinical practice of ophthalmology in the medical field, patients with eye diseases who suffer from tear secretion disorders have used tear detection filter paper strips with coloring agents to test tear secretion, and obtain the diagnosis results by measuring the wet length of tears. Because the filter paper strip has sharp edges and the material is hard, it is easy to irritate the eye tissue of the patient, especially each test lasts for 5 minutes, causing discomfort and injury to the patient. In recent years, the use of cotton thread prepared by the PH ind...

AI Technical Summary

Problems solved by technology

However, because the cotton thread is soft and easy to deform, the bending of the thread end and the overall straight shape cannot be maintained, and it is easy to be entangled, and it is difficult to use it directly in bulk; and the phenol red leaks after absorbing moisture, which affects the use effect and accuracy; in addition, due to the measurement of cotton thread The speed is too fast and cannot accurately reflect the secretion of tears in the eye

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