Integral vacuum physiological saline fluorescein sodium staining test paper

Abstract

The utility model discloses an integrated vacuum physiological saline fluorescein sodium dyeing test paper, including thin type plastic vacuum tube, vacuum release spare, fluorescein sodium test paper, thin type plastic vacuum tube is filled with physiological saline, and one end of thin type plastic vacuum tube is closed and is arranged, and the other end of thin type plastic vacuum tube is open and is arranged, vacuum release spare sets up one end of thin type plastic vacuum tube, fluorescein sodium test paper sets up the other end of thin type plastic vacuum tube, when vacuum release spare releases the vacuum state in thin type plastic vacuum tube, physiological saline is arranged into fluorescein sodium test paper under pressure. Through using above -mentioned setting, the quantitative sterile physiological saline and fluorescein sodium test paper are integrated in the same test paper, and both are in the isolated state before not using, can make sterile physiological saline flow into fluorescein sodium test paper to facilitate the contact conjunctival sac when using, thereby overcome the problem of excessive physiological saline dipping or using glass rod to contact conjunctiva in prior art.

Description

Technical Field

[0001] This utility model belongs to the technical field of ophthalmic sodium fluorescein staining test paper structure, specifically relating to an integrated vacuum physiological saline sodium fluorescein staining test paper. Background Technology

[0002] Applications of sodium fluorescein staining in ophthalmology: Moistened sodium fluorescein staining strips are placed in the conjunctival sac and can be used for examination of ocular surface structures such as corneal ulcers, conjunctival damage, tear film breakup time measurement, and rigid contact lens fitting. It also facilitates medical personnel to observe and assess the condition or conduct examinations under a slit lamp using a cobalt blue lamp.

[0003] Currently, medical staff typically use the following methods to conduct tests:

[0004] 1. Using sodium fluorescein test strips: The fluorescein-stained test strips need to be moistened with sterile saline before use. Only 1-2 drops are needed when moistening. When medical staff hold the test strips and dip them in saline, they may sometimes over-moisten them, causing the fluorescein-containing staining water to drip onto the instrument or the ground, making it difficult to clean. In addition, the tip of the over-moistened test strip will droop, making it inconvenient for medical staff to place the test strip into the conjunctival sac.

[0005] 2. Testing with a glass rod: Sodium fluorescein is stored in a glass bottle. A drop of sodium fluorescein is placed on a glass rod with a dropper, and then the glass rod touches the conjunctiva to stain. However, using a glass rod to remove the conjunctiva usually increases patient discomfort. In addition, repeated opening of the sodium fluorescein bottle increases the risk of contamination. The glass rod needs to be sent to the supply room for EO sterilization, which increases the burden on the department's manpower and resources. Utility Model Content

[0006] To overcome the shortcomings of the prior art, the purpose of this utility model is to provide an integrated vacuum saline fluorescein sodium staining test strip, which integrates quantitative sterile saline and fluorescein sodium test strip into the same test strip, and the two are isolated before use. When in use, sterile saline can flow into the fluorescein sodium test strip to facilitate contact with the conjunctival sac, thereby overcoming the problems of excessive saline or contact with the conjunctiva by a glass rod in the prior art.

[0007] The objective of this utility model is achieved through the following technical solution:

[0008] An integrated vacuum saline-fluorescein sodium staining test strip includes a thin plastic vacuum tube, a vacuum release component, and a fluorescein sodium test strip. The thin plastic vacuum tube is filled with saline solution, one end of the thin plastic vacuum tube is closed, and the other end is open. The vacuum release component is located at one end of the thin plastic vacuum tube. The fluorescein sodium test strip is located at the other end of the thin plastic vacuum tube. When the vacuum release component releases the vacuum in the thin plastic vacuum tube, the saline solution is discharged into the fluorescein sodium test strip under pressure.

[0009] Furthermore, the thin plastic vacuum tube has a capacity of 0.2 ml and a length of 10 ± 1 mm.

[0010] Furthermore, the vacuum release component includes a connector, which is integrally connected to the end of the thin plastic vacuum tube, and the wall thickness at the connection point between the connector and the thin plastic vacuum tube is 0.1 to 0.4 times the wall thickness of the thin plastic vacuum tube.

[0011] Furthermore, the vacuum release component includes an airbag, which is integrally connected to the end of the thin plastic vacuum tube, and the airbag is in communication with the thin plastic vacuum tube.

[0012] Furthermore, it also includes blank test strips, wherein the sodium fluorescein test strip is connected to the thin plastic vacuum tube via the blank test strip.

[0013] Furthermore, a handle is fixedly connected to the outer peripheral surface of the thin plastic vacuum tube, the handle extends along the direction of the sodium fluorescein test paper, and there is a gap between the inner wall of the handle and the sodium fluorescein test paper.

[0014] Furthermore, the connection between the vacuum release component and the thin plastic vacuum tube protrudes from the end of the handheld part.

[0015] Furthermore, the end of the sodium fluorescein test paper furthest from the thin plastic vacuum tube is arc-shaped.

[0016] This utility model has the following beneficial effects:

[0017] 1. This invention integrates a quantitative amount of physiological saline into a thin plastic vacuum tube, with a fluorescein sodium test strip at the open end and a vacuum release device at the closed end, forming a single-use, integrated structure. When not in use, the physiological saline and the fluorescein sodium test strip are relatively isolated; when in use, the vacuum release device releases the seal at the closed end of the thin plastic vacuum tube, allowing the physiological saline to flow into the fluorescein sodium test strip under pressure, thus facilitating testing. This integrated structure offers the advantages of simple and efficient operation and portability.

[0018] 2. The thin plastic vacuum tube can only hold a fixed amount of physiological saline, which can ensure the concentration and amount of sodium fluorescein and prevent the concentration from being unstable due to too much or too little, thus affecting the judgment of medical staff.

[0019] 3. When using, medical staff do not need to turn on the sodium fluorescein staining test strip and physiological saline at the same time, saving consumables; it is a single-use item and does not need to be sent for disinfection and reuse, preventing cross-use and reducing the chance of infection. It is also convenient for medical staff to operate and manage. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of Example 1.

[0021] Figure 2 This is a schematic diagram of the overall structure of Example 2.

[0022] In the diagram: 1. Thin plastic vacuum tube; 2. Handheld part; 3. Blank test paper; 4. Sodium fluorescein test paper; 41. Arc shape; 5. Connecting block; 6. Airbag. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Terms such as “upper,” “inner,” “middle,” “left,” “right,” and “one” used in this specification are merely for clarity of description and are not intended to limit the scope of the present invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the present invention.

[0024] This invention addresses the problems in existing technologies where excessive amounts of physiological saline are absorbed when using sodium fluorescein test paper 4, or where discomfort is caused by contacting the conjunctival sac with a glass rod. Therefore, an integrated vacuum physiological saline sodium fluorescein staining test paper is designed. This paper integrates quantitative sterile physiological saline and sodium fluorescein test paper 4 into a single test paper, with both isolated before use. During use, sterile physiological saline can flow into the sodium fluorescein test paper 4 to facilitate contact with the conjunctival sac, thus overcoming the problems of existing technologies.

[0025] The structure and working principle of the integrated vacuum saline fluorescein sodium staining test strip of this utility model are described in detail below with two embodiments:

[0026] Example 1

[0027] like Figure 1 As shown, an integrated vacuum saline-fluorescein sodium staining test strip includes a thin plastic vacuum tube 1, a vacuum release component, a blank test strip 3, and a fluorescein sodium test strip 4. The thin plastic vacuum tube 1 is filled with sterile saline solution; one end of the thin plastic vacuum tube 1 is closed, and the other end is open. The vacuum release component is located at the closed end of the thin plastic vacuum tube 1 and is used to release the vacuum within the tube during use. The blank test strip 3 is fixedly connected to the open end of the thin plastic vacuum tube 1, and the fluorescein sodium test strip 4 is fixedly connected to the end of the blank test strip 3 furthest from the tube 1. During use, when the vacuum release component releases the vacuum within the thin plastic vacuum tube 1, the saline solution, under pressure, passes through the blank test strip 3 and is discharged into the fluorescein sodium test strip 4, facilitating contact between the end of the fluorescein sodium test strip 4 and the conjunctival sac for testing.

[0028] It should be noted that the blank test strip 3 is 3-5 mm thick and is used to temporarily isolate the sodium fluorescein test strip 4 to prevent the sodium fluorescein test strip 4 from directly contacting the thin plastic vacuum tube 1 and causing contamination. At the same time, the blank test strip 3 is thin, so the physiological saline will pass through the blank test strip 3 first and then enter the sodium fluorescein test strip 4, which has the effect of temporary transition and filtration. Moreover, due to gravity, most of the physiological saline will be absorbed by the sodium fluorescein test strip 4, and only a small amount of physiological saline will remain in the blank test strip 3, so it will not affect the test results.

[0029] In this embodiment, the capacity of the thin plastic vacuum tube 1 is 0.2 ml, and the length of the thin plastic vacuum tube 1 is 10 ± 1 mm. Therefore, the cross-section of the thin plastic vacuum tube 1 is 0.018 square millimeters to 0.022 square millimeters. It can be seen that the cross-section of the thin plastic vacuum tube 1 is small enough. Therefore, when one end of the thin plastic vacuum tube 1 is relatively closed and the other end is open, the saline solution inside the thin plastic vacuum tube 1 cannot fall out by its own weight and the suction force of the blank test paper 3 under the action of vacuum pressure and liquid surface tension. Therefore, the thin plastic vacuum tube 1 can be used as a structure for storing saline solution.

[0030] In this embodiment, the vacuum release component includes a connector, which is integrally connected to the end of the thin plastic vacuum tube 1. The wall thickness at the connection point between the connector and the thin plastic vacuum tube 1 is 0.1 to 0.4 times the wall thickness of the thin plastic vacuum tube 1. Therefore, since the cross-section of the thin plastic vacuum tube 1 is strip-shaped and the wall thickness at the connection point between the connector and the thin plastic vacuum tube 1 is reduced, the structural strength at the connection point is reduced. Therefore, during use, medical personnel can hold the thin plastic vacuum tube 1 with one hand and use the other hand to grasp and tear the connector, so that both ends of the thin plastic vacuum tube 1 are under the same atmospheric pressure, thereby releasing the vacuum state inside the thin plastic vacuum tube 1. Under the action of air pressure, the physiological saline inside the thin plastic vacuum tube 1 is discharged into the sodium fluorescein test paper 4.

[0031] In this embodiment, a handle 2 is fixedly connected to the outer peripheral surface of the thin plastic vacuum tube. The handle 2 extends along the direction of the sodium fluorescein test paper 4 to increase the length of the handle 2, thereby facilitating gripping during use. At the same time, there is a gap between the inner wall of the handle 2 and the sodium fluorescein test paper 4 to reduce contamination caused by the separation of the sodium fluorescein test paper 4 from the handle 2.

[0032] Meanwhile, the connection point between the connector and the thin plastic vacuum tube 1 protrudes from the end of the handle 2 to reduce interference from the handle 2 on the connector during subsequent tearing operations.

[0033] In this embodiment, the end of the sodium fluorescein test paper 4 furthest from the thin plastic vacuum tube 1 protrudes beyond the end of the handheld part 2, and the end of the sodium fluorescein test paper 4 furthest from the thin plastic vacuum tube 1 is arc-shaped 41. Therefore, during use, the arc-shaped 41 structure can reduce liquid dripping, facilitate contact with the conjunctival sac, and reduce patient discomfort.

[0034] Example 2

[0035] The difference between Example 2 and Example 1 is as follows:

[0036] like Figure 2 As shown, the vacuum release device includes an air bladder 6, which is integrally connected to the end of a thin plastic vacuum tube 1, and the air bladder 6 is in communication with the thin plastic vacuum tube 1. During use, pressing the air bladder 6 allows the physiological saline solution inside the thin plastic vacuum tube 1 to be squeezed into the sodium fluorescein test paper 4, offering the advantage of simple operation.

[0037] In summary, this invention integrates physiological saline solution and sodium fluorescein test paper 4 into a single structure by placing a quantitative amount of physiological saline solution inside a thin plastic vacuum tube 1, attaching a fluorescein sodium test paper 4 to the open end, and a vacuum release device to the closed end. When not in use, the physiological saline solution and sodium fluorescein test paper 4 are relatively isolated; when in use, the vacuum release device releases the seal at the closed end of the thin plastic vacuum tube 1, allowing the physiological saline solution to flow into the sodium fluorescein test paper 4 under pressure, thus facilitating testing. The overall structure of this invention offers the advantages of simple, efficient, and portable operation. Furthermore, the quantitative amount of physiological saline solution ensures the concentration and quantity of sodium fluorescein, preventing instability caused by excessive or insufficient concentration, which could affect the judgment of medical personnel.

[0038] The embodiments of this utility model are not limited thereto. Based on the above content of this utility model, using ordinary technical knowledge and conventional means in the field, without departing from the basic technical idea of ​​this utility model, this utility model can also be modified, replaced or combined in various other forms, all of which fall within the scope of protection of this utility model.

Claims

1. An integrated vacuum saline fluorescein sodium staining test strip, characterized in that, The device includes a thin plastic vacuum tube, a vacuum release mechanism, and sodium fluorescein test paper. The thin plastic vacuum tube is filled with physiological saline, one end of the tube is closed, and the other end is open. The vacuum release mechanism is located at the closed end of the thin plastic vacuum tube. The sodium fluorescein test paper is located at the open end of the thin plastic vacuum tube. When the vacuum release mechanism releases the vacuum in the thin plastic vacuum tube, the physiological saline is discharged into the sodium fluorescein test paper under pressure.

2. The integrated vacuum saline fluorescein sodium staining test strip as described in claim 1, characterized in that, The thin plastic vacuum tube has a capacity of 0.2 ml and a length of 10 ± 1 mm.

3. The integrated vacuum saline fluorescein sodium staining test strip as described in claim 1, characterized in that, The vacuum release component includes a connector, which is integrally connected to the end of the thin plastic vacuum tube. The wall thickness at the connection point between the connector and the thin plastic vacuum tube is 0.1 to 0.4 times the wall thickness of the thin plastic vacuum tube.

4. The integrated vacuum saline fluorescein sodium staining test strip as described in claim 1, characterized in that, The vacuum release component includes an airbag, which is integrally connected to the end of the thin plastic vacuum tube, and the airbag is in communication with the thin plastic vacuum tube.

5. The integrated vacuum saline fluorescein sodium staining test strip as described in claim 1, characterized in that, It also includes blank test strips, the sodium fluorescein test strips being connected to the thin plastic vacuum tube via the blank test strips.

6. The integrated vacuum saline fluorescein sodium staining test strip as described in claim 1, characterized in that, A handle is fixedly connected to the outer peripheral surface of the thin plastic vacuum tube. The handle extends along the direction of the sodium fluorescein test paper, and there is a gap between the inner wall of the handle and the sodium fluorescein test paper.

7. The integrated vacuum saline fluorescein sodium staining test strip as described in claim 6, characterized in that, The connection between the vacuum release component and the thin plastic vacuum tube protrudes from the end of the handheld part.

8. The integrated vacuum saline fluorescein sodium staining test strip as described in claim 1, characterized in that, The end of the sodium fluorescein test paper furthest from the thin plastic vacuum tube is curved.

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