Composite tear detection bar

Abstract

A composite tear detection bar includes a cotton wire and a detection filter paper. The cotton wire is connected to the detection filter paper and is disposed on a front end of the composite tear detection bar. The cotton wire is formed by a plurality of cotton threads. The detection filter paper is arranged on a back end of the composite tear detection bar. The composite tear detection bar is in the shape of a bar in whole. A scale line having length marks are disposed on the detection filter paper and a dyeing line, which is arranged in parallel with the scale line, is disposed at a back side of a connection position between the cotton wire and the detection filter paper. When tear detection is carried out, the cotton wire contacts ocular tissue of an patient so that stimulation on the ocular tissue of the patient is reduced and discomfort of the patient during the tear detection can be reduced. By means of the scale line on the detection filter paper, a doctor can carry out the tear detection more conveniently, intuitively and accurately. By means of the dyeing line disposed on the front end of the detection filter paper, a dyeing agent on the dyeing line spreads along with to-be-detected tear so that a front edge of wetting length of the tear can be clearly display. The composite tear detection can provide a reliable evidence for the doctor in diagnosis of diseases such as ophthalmologic tear secretion disorder and the like.

Description

technical field [0001] The invention relates to the technical field of ophthalmology clinical detection, specifically a composite tear detection strip which is composed of cotton thread and detection filter paper, which not only overcomes the problem of eye tissue irritation, but also can accurately and intuitively understand ocular surface secretion. Background technique [0002] For a long time, in the clinical practice of ophthalmology in the medical field, for patients with eye diseases suffering from lacrimal secretion disorders, tear detection filter paper strips with coloring agents are used to test tear secretion, and the diagnosis results are obtained by measuring the wet length of tears. Since the filter paper strip has sharp edges and the material is hard, it is easy to irritate the patient's eye tissue, especially each test lasts for 5 minutes, which brings discomfort and injury to the patient. In recent years, the use of cotton thread treated with PH indicator p...

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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