A dyeing vat with detection function

Abstract

This utility model discloses a staining vat with detection function, belonging to the field of biomedical products. It includes a vat body with a matching vat cover on the top of the vat body, and a detection device for detecting the evaporation and density of the solution inside the vat body. It combines volume detection and density detection. The mass difference is calculated by using an analytical balance based on the recorded weight of the injected solution and the current weight of the solution. Then, the liquid phase refractive index of the current solution is measured by an immersion refractive index probe and converted into density to obtain the concentration of the current solution, so as to determine whether the solution needs to be replaced.

Description

Technical Field

[0001] This utility model belongs to the field of biomedical products, specifically, it relates to a staining vat with detection function. Background Technology

[0002] Staining jars are used in medical and health institutions, medical schools, epidemic prevention stations, colleges and universities, and research units. They are used to store staining liquids when staining slides or coverslips made of bacterial specimens coated with sputum, phlegm, secretions, etc., or animal and plant specimens, when studying bacteria and cells.

[0003] Currently, commercially available staining tanks are often sealed with lids to prevent solution evaporation. However, over time, solvent evaporation still occurs, leading to changes in density (and solvent / solute composition), which in turn increases background, reduces specificity, damages cell morphology, attenuates staining signals, or results in false negatives / false positives.

[0004] Therefore, in order to ensure the accuracy of the final test results, a solution at the specified concentration is necessary. Currently, a new solution is poured in each time it is used to ensure the concentration standard. However, this results in waste of solution. Therefore, it is necessary to test the solution to determine whether it needs to be reconstituted. Utility Model Content

[0005] To address the above deficiencies, this utility model provides a dyeing vat with a detection function, including a vat body, a vat cover adapted to the top of the vat body, and a detection device for detecting the evaporation and density of the solution inside the vat body.

[0006] The detection device includes an analytical balance and an immersion refractive index probe. The analytical balance is installed in a base. The detection area of ​​the analytical balance has a storage slot for placing the cylinder. The base is equipped with a fixing column via a connecting rod. The fixing column is used to adjust the position of the immersion refractive index probe installed inside it.

[0007] The inner wall of the cylinder is fixed with a limiting clamp for holding an immersion refractive index probe, and the edge of the cylinder cover is provided with a notch that matches the limiting clamp.

[0008] Furthermore, the height of the limiting clamp above the cylinder head is greater than the thickness of the cylinder head.

[0009] Furthermore, the limiting clamp is made of fluororubber, and the width of the insertion port of the limiting clamp is smaller than the diameter of the immersion refractive index probe.

[0010] Furthermore, the connecting rod is threaded to one end of the base.

[0011] Furthermore, the surface of the cylinder is provided with a scale.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] This system combines volume and density detection. By using an analytical balance to calculate the mass difference between the recorded weight of the injected solution and the current weight of the solution, and then measuring the liquid phase refractive index of the current solution using an immersion refractive index probe, it can be converted into density to obtain the current concentration of the solution, thus determining whether the solution needs to be replaced. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the present invention.

[0015] Figure 2 for Figure 1 Enlarged diagram of point A in the middle.

[0016] In the diagram: 1. Base; 2. Analytical balance; 3. Storage slot; 4. Cylinder body; 5. Screw hole; 6. Threaded layer; 7. Connecting rod; 8. Fixing column; 9. Immersion refractive index probe; 10. Limiting clamp; 11. Notch; 12. Cylinder head. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example

[0019] like Figures 1 to 2 As shown, this embodiment provides a dyeing vat with detection function, including a vat body 4 with a scale on its surface, a vat cover 12 adapted to the top of the vat body 4, and a detection device for detecting the evaporation and density of the solution inside the vat body 4.

[0020] The testing device includes an analytical balance 2 and an immersion refractive index probe 9. The analytical balance 2 is installed in the base 1. The testing area of ​​the analytical balance 2 has a storage slot 3 for placing the cylinder 4. The left side of the base 1 has a screw hole 5. The bottom of the connecting rod 7 is threaded to the screw hole 5 through a threaded layer 6. The top of the connecting rod 7 is fixed with a fixing post 8. The right end of the fixing post 8 has an adjustment hole through which the probe rod of the immersion refractive index probe 9 passes. The right end of the fixing post 8 adjusts the clamping of the probe rod by adjusting the tightness of the bolt.

[0021] The inner wall of the cylinder 4 is fixed with a limiting clip 10 for holding the immersion refractive index probe 9. The limiting clip 10 is shaped like a magatama (pea-shaped, concave in the middle, with both ends protruding and extending inward). The height of the limiting clip 10 above the cylinder opening of the cylinder 4 is greater than the thickness of the cylinder cover 12. The edge of the cylinder cover 12 has a notch 11 that matches the limiting clip 10. The limiting clip 10 is made of fluororubber, and the width of the insertion port of the limiting clip 10 is smaller than the diameter of the immersion refractive index probe 9. Its function is that when the cylinder cover 12 is used to cover and seal the cylinder 4, no gap will be generated between the limiting clip 10 and the inner wall of the cylinder cover 12, thereby increasing the sealing performance and reducing the evaporation of the solution.

[0022] It should be noted that the immersion refractive index probe 9 is an existing device (also known as a projection immersion probe fiber). The probe tip has an opening that allows the liquid sample to flow freely into the measurement area during measurement. Each tip has a diffuse mirror that reflects the light emitted from the probe fiber bundle to measure the transmittance and absorbance in the solution. A protective film on the surface of the mirror allows it to be immersed in the liquid. The probe can be cleaned using acetone and an ultrasonic cleaner for reuse.

[0023] This embodiment describes a dyeing vat with detection function. First, an analytical balance is used to record the total mass change M (the initial and current masses can be automatically calculated by the built-in MCU, or they can be calculated manually, which will not be elaborated here). The current density ρ of the solution is measured with the immersion refractive index probe 9 inside the bottle, and the current volume V can be calculated. The volume difference is obtained by subtracting the initial volume from the current density ρ. By comparing the current density ρ with the current room temperature (which can be measured by an indoor thermometer) and the density-concentration correspondence table provided by the manufacturer when the immersion refractive index probe 9 was purchased, the current concentration c of the solution can be obtained, thereby determining whether the current solution is at the standard concentration and corresponding volume.

[0024] It should be noted that the structure described in this utility model can be implemented in many different forms and is not limited to the embodiments described. Any equivalent transformations made by those skilled in the art based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, such as the loading and unloading of other items, are included within the protection scope of this utility model.

Claims

1. A dyeing vat with detection function, comprising a vat body, characterized in that: The top of the cylinder is provided with a matching cylinder cover, and it also includes a detection device for detecting the evaporation and density of the solution inside the cylinder; The detection device includes an analytical balance and an immersion refractive index probe. The analytical balance is installed in a base. The detection area of ​​the analytical balance has a storage slot for placing the cylinder. The base is equipped with a fixing column via a connecting rod. The fixing column is used to adjust the position of the immersion refractive index probe installed inside it. The inner wall of the cylinder is fixed with a limiting clamp for holding an immersion refractive index probe, and the edge of the cylinder cover is provided with a notch that matches the limiting clamp.

2. The dyeing vat with detection function as described in claim 1, characterized in that: The height of the limiting clamp above the cylinder head is greater than the thickness of the cylinder head.

3. A dyeing vat with detection function as described in claim 2, characterized in that: The limiting clamp is made of fluororubber, and the width of the insertion port of the limiting clamp is smaller than the diameter of the immersion refractive index probe.

4. A dyeing vat with detection function as described in claim 1, characterized in that: The connecting rod is threaded to one end of the base.

5. A dyeing vat with detection function as described in claim 1, characterized in that: The cylinder body has a scale on its surface.

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