Tear detection hard test paper
By designing the structure of the test strip and test bag for rigid tear test strips, the problems of inconvenient operation and safety hazards have been solved, achieving greater ease of operation, hygiene and testing safety.
Patent Information
- Application Number
- CN202522325539.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-03
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-11-03
AI Technical Summary
Conventional tear testing methods are inconvenient to operate, pose risks of test strip contamination and safety hazards, and patients may experience a foreign body sensation during the testing process, affecting the test results.
Design a rigid test strip for tear detection, which adopts a test strip and test strip bag structure. The test strip is equipped with cutting lines and scales, and the end is cut into an arc shape with a chamfer at the transition. The end of the test strip is covered in a plastic film, and the plastic film is bent to avoid direct contact and reduce foreign body sensation.
It improves ease of operation and hygiene, reduces the risk of test strip contamination, ensures test safety, reduces patient discomfort, and improves the reliability and accuracy of the test.
Smart Images
Figure CN223695910U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of rigid tear test strips, specifically a rigid tear test strip. Background Technology
[0002] In tear film testing, the conventional method requires medical staff or the patient to clean their hands first. Then, the test strip is folded in half at the end. The patient keeps their eyes closed and tilts their head back. The medical staff gently pulls back the lower eyelid and cleans the tears from the patient's conjunctival sac with a cotton swab. The folded end of the test strip is placed on the conjunctival sac at the outer third of the eyelid. The patient keeps their eyes closed and still for five minutes before removing the test strip for testing. However, conventional test strips have some problems in use, such as inconvenience: when bending the end of the test strip, the user needs to directly touch the end of the strip with their hand, which not only increases the risk of contamination but may also affect the accuracy of the test results. There are also safety hazards: the tip of the test strip is relatively sharp, which can easily scratch the patient's eye when inserted, causing discomfort and injury. Additionally, the folded end of the test strip is relatively long, causing a noticeable foreign body sensation when the patient closes their eyes, potentially leading to eye movement and affecting the testing process. Utility Model Content
[0003] To solve the above problems, namely the problems mentioned in the background art, this utility model proposes a rigid test strip for tear detection, including a test strip and a test strip pouch. The test strip is placed in the test strip pouch, and the test strip is provided with markings and scales. The test strip has a cutting line in the middle that can split the test strip into left and right halves, and the test strip is provided with scale lines.
[0004] The test strip bag includes a plastic film folded in half at one end and a backing paper. The folded plastic film is the same length as the backing paper. The plastic film is heat-pressed onto the backing paper by a rectangular heat-pressing crease, and the edge of the heat-pressing crease is a certain distance from the end of the plastic film. A section of the folded plastic film is heat-pressed to form a space for placing the end of the test strip.
[0005] A further feature of this invention is that the end of the test strip is cut into an arc shape.
[0006] A further feature of this invention is that the arc-shaped end of the test strip is machined with a crease between it and the main body.
[0007] A further feature of this invention is that the arc-shaped end of the test strip is chamfered at the transition point with the main body.
[0008] The beneficial technical effects of this utility model are as follows: The structure of this solution is simple, adding only a few steps to the conventional test strip production process without changing materials or production processes, thus not increasing manufacturing costs. Furthermore, it eliminates the need to replace the production line, reducing the difficulty of upgrading the production line. Simultaneously, the test strip in this solution is easy to operate. The end of the test strip is still covered in a plastic film; the user touches the plastic film to bend the end of the test strip. This allows bending the test strip without direct contact with the end, avoiding contamination and improving operational convenience and hygiene. At the same time, the test strip is safe and reliable to use. The bent end of the test strip is cut into an arc shape, which avoids scratching the patient's eye and prevents discomfort caused by eye movement. The beveled corner at the transition between the arc-shaped end of the test strip and the main body reduces the length of the crease, minimizing the foreign body sensation between the upper and lower eyelids when the patient closes their eyes, preventing discomfort caused by a noticeable foreign body and thus improving the safety of the test. Attached Figure Description
[0009] Figure 1 A schematic diagram of the overall structure of this solution is shown.
[0010] Figure 2 A schematic diagram of the unfolded packaging bag of this solution is shown.
[0011] Figure 3 A side view of the unfolded packaging bag of this solution is shown.
[0012] Figure 4 A schematic diagram showing the bent state of the test paper end in this scheme is shown.
[0013] The attached diagram shows the following labels: 1. Test strip, 2. Crease, 3. Test strip bag, 301. Heat crease, 302. Plastic film, 303. Backing paper. Detailed Implementation
[0014] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.
[0015] This invention proposes a rigid test strip for tear detection. The testing method is the same as the conventional method. First, the hands need to be cleaned. Then, the end of the test strip is folded in half. The patient keeps their eyes closed and tilts their head back. The medical staff opens the lower eyelid and cleans the patient's conjunctival sac with a cotton swab. The folded end of the test strip is placed on the conjunctival sac at the middle and outer third of the eyelid. The patient keeps their eyes closed and does not move for five minutes before the test strip is removed for testing.
[0016] To facilitate use by medical staff or patients for home self-testing, this solution includes creases at the bendable end of the test strip. The plastic film 302 of the test strip bag 3 is folded over and placed over the bendable end. The test strip bag 3 is then heat-sealed. When the user tears open the test strip bag 3 to separate the plastic film 302 from the backing paper 303, the end of the test strip 1 remains encased in the plastic film 302. The user touches the plastic film 302 and bends the end of the test strip 1, thus avoiding direct contact with the end of the test strip 1 and preventing contamination. The user then pinches the end of the test strip 1 away from the bend and removes it. The user then tears the test strip 1 to the left and right sides, separating it into two halves along the cutting line. The bend of the test strip 1 is then placed inside the patient's eye for testing. Throughout the process, the user must avoid touching the bend of the test strip 1.
[0017] The bent end of the test strip is cut into an arc shape to avoid scratching the patient's eyes and to prevent discomfort caused by the movement of the patient's eyeballs.
[0018] A chamfer is made at the transition point between the arc-shaped end of test strip 1 and the main body to reduce the length of the crease. This can reduce the foreign body sensation between the upper and lower eyelids after the patient closes their eyes, and prevent the patient from feeling obvious foreign body discomfort, which could cause the eyeballs to move randomly.
[0019] Although the present invention has been described with reference to preferred embodiments, various modifications can be made to it and components can be replaced with equivalents without departing from the scope of the present invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
[0020] In the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0021] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0022] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.
[0023] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.
Claims
1. A rigid test strip for tear detection, comprising a test strip (1) and a test strip pouch (3), wherein the test strip (1) is disposed in the test strip pouch (3), and the test strip (1) is provided with markings and graduations, characterized in that: The test strip (1) has a cutting line in the middle that can split the test strip (1) into two halves, and the test strip (1) has scale lines. The test strip bag (3) includes a plastic film (302) folded at the end and a backing paper (303). The plastic film (302) folded at the end is the same length as the backing paper (303). The plastic film (302) is hot-pressed onto the backing paper (303) by a rectangular heat crease (301), and the edge of the heat crease (301) is a certain distance from the end of the plastic film (302). A section of the folded part of the plastic film (302) is hot-pressed to form a space for placing the end of the test strip (1).
2. The rigid test strip for tear film detection according to claim 1, characterized in that: The end of the test strip (1) is cut into an arc shape.
3. The rigid test strip for tear film detection according to claim 2, characterized in that: The test strip (1) has a crease (2) between its arc-shaped end and the main body.
4. A rigid test strip for tear detection according to claim 2 or 3, characterized in that: The arc-shaped end of the test strip (1) is chamfered at the transition point between the strip and the main body.