A large scale simulated blood cell counting chamber

Abstract

The utility model provides a large -scale simulation blood cell counting board, including bottom plate, cover piece and clamping plate bottom plate surface is provided with a plurality of square grids, clamping plate is fixed in the top of bottom plate, the surface of clamping plate is provided with square groove, a plurality of square grids all are located in square groove, square grid divides square groove into a plurality of sample square, cover piece can be covered in the top of clamping plate, covers square groove. The large -scale simulation blood cell counting board provided in the application. Can make the macroscopization of microscopic experiment operation, can further strengthen the understanding of student to blood cell counting board use and principle.

Description

Technical Field

[0001] This utility model relates to the field of teaching aids technology, and in particular to a large-scale simulated blood cell counting plate. Background Technology

[0002] In high school teaching, hemocytometers are often used to perform blood cell counting experiments on whole blood samples, helping students gain a deeper understanding of blood components and cell counts, and cultivating their observation and experimental skills.

[0003] Existing hemocytometers are too small to allow for observation of the internal structure of the counting chamber, making it difficult for many students to understand the counting principles and cell count estimation methods. This application provides a large-scale simulated hemocytometer to solve the above-mentioned technical problems. Utility Model Content

[0004] Based on the above situation, the main purpose of this utility model is to provide a large-scale simulated blood cell counting chamber to solve the problem that the existing blood cell counting chambers are too small to observe the specific internal structure of the counting chamber, so many students have difficulty understanding the counting principle and cell number estimation method of the blood cell counting chamber.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A large simulated blood cell counting chamber includes a base plate, coverslip, and clips.

[0007] The surface of the base plate is provided with multiple square grids;

[0008] The clamping plate is fixed above the base plate. The surface of the clamping plate is provided with square grooves, and multiple square grids are located in the square grooves, which divide the square grooves into multiple sample squares.

[0009] The cover plate can be placed over the clamping plate to cover the square groove.

[0010] Preferably, the surface of the clamping plate has grooves on both sides corresponding to the square groove.

[0011] Preferably, the side length of the square grid is L1, and the thickness of the square groove is H, wherein 4mm≤L1≤6mm and 9mm≤H≤11mm.

[0012] Preferably, the length of the base plate is L2 and the width of the base plate is W, wherein 400mm≤L2≤600mm and 200≤W≤300mm.

[0013] Preferably, the base plate and the clamping plate are fixed together by rivets.

[0014] Preferably, the clamping plate is a transparent acrylic sheet.

[0015] The beneficial effects of this invention are as follows: Existing hematology counting chambers are too small to easily observe their internal structure. Therefore, many students find it difficult to understand the counting principles and cell count estimation methods of hematology counting chambers.

[0016] This teaching aid simulates and magnifies a hemocytometer. Square grids are set on the base to divide the area, and multiple square grids are formed through square grooves on the clamping plate. This allows students to directly and clearly observe the internal structure of the counting chamber. In use, appropriately sized plastic balls and solution are poured into the square grooves to simulate blood cells. Based on the observed counting chamber structure and the number of balls in the square grids, the number of balls per unit volume can be estimated, and the density of the balls in the solution can be determined. By using this counting chamber, microscopic experimental operations are made macroscopic, further enhancing students' understanding of the use and principles of hemocytometers.

[0017] Other beneficial effects of this utility model will be explained in the specific embodiments through the introduction of specific technical features and technical solutions. Those skilled in the art should be able to understand the beneficial technical effects brought about by these technical features and technical solutions through the introduction of these technical features and technical solutions. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a large-scale simulated blood cell counting plate according to the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of a large simulated blood cell counting plate according to the present invention, showing a square grid.

[0020] Figure 3 This is a cross-sectional view showing the grooves of a large simulated blood cell counting plate according to this utility model.

[0021] Figure 4 This is an explosion diagram of a large-scale simulated blood cell counting plate according to the present invention.

[0022] Figure 5 This is an enlarged schematic diagram of part A.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Base plate; 11. Square grid; 2. Cover plate; 3. Clamping plate; 31. Square groove; 32. Groove. Detailed Implementation

[0025] The present invention will now be described based on embodiments, but the present invention is not limited to these embodiments. In the following detailed description of the present invention, some specific details are described in detail, but well-known methods, processes, procedures, and elements are not described in detail in order to avoid obscuring the essence of the present invention.

[0026] Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.

[0027] Unless the context explicitly requires it, the words "comprising," "including," and similar terms throughout the specification and claims should be interpreted as encompassing rather than being exclusive or exhaustive; that is, meaning "including but not limited to."

[0028] In the description of this utility model, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0029] Reference Figure 1-5 This utility model provides a large simulated blood cell counting plate, including a base plate 1, a cover plate 2 and a clamping plate 3. The base plate 1, the clamping plate 3 and the cover plate 2 are arranged sequentially from bottom to top, and the base plate 1, the clamping plate 3 and the cover plate 2 are all planar structures.

[0030] The upper surface of the base plate 1 is laser-engraved with intersecting horizontal and vertical lines, which intersect to form multiple square grids 11. The clamping plate 3 can be fixed to the base plate 1 and is located above the base plate 1. A square groove 31 is opened in the middle of the surface of the clamping plate 3, and the square groove 31 is set through the clamping plate 3. The square grids 11 are located in the square groove 31. Multiple sample squares are formed in the square groove corresponding to the projection area above the square grids 11. The side length of the sample square is the same as the side length of the square grid 11, and the height of the sample square is the thickness of the square groove 31. The cover plate 2 can be placed on top of the clamping plate 3 to cover the square groove 31, thereby sealing the upper side of each sample square.

[0031] Existing hematology counting chambers are too small to easily observe their internal structure. Therefore, many students struggle to understand the counting principles and cell count estimation methods of hematology counting chambers.

[0032] This teaching aid simulates and magnifies a hemocytometer. Square grids 11 are set on the base plate 1 to divide the area, and multiple square grids 11 are formed through square grooves 31 on the clamping plate 3. This allows students to directly and clearly observe the internal structure of the counting chamber. During use, appropriately sized plastic balls and solution are poured into the square grooves to simulate blood cells. Based on the observed counting chamber structure and the number of balls in the square grids, the number of balls per unit volume can be estimated, and the density of the balls in the solution can be determined. By using this counting chamber, microscopic experimental operations are made macroscopic, further enhancing students' understanding of the use and principles of hemocytometers.

[0033] As one embodiment, grooves 32 are provided on both sides of the surface of the clamping plate 3 corresponding to the square groove 31. The grooves 32 and the square groove 31 are connected. In use, it is convenient to first cover the cover plate, and then inject the solution and plastic balls through the grooves 32, which can further simulate the real operation steps of the blood cell counting experiment.

[0034] As one embodiment, the side length of the square grid 11 is L1, and the thickness of the square groove 31 is H, wherein 4mm≤L1≤6mm, 9mm≤H≤11mm, and preferably, L1=5mm, H=10mm. Under this size, the square grid 11 is appropriately sized and easy to observe.

[0035] Furthermore, the base plate 1 has a length of L2 and a width of W, and the length and width of the base plate 1 are the same as those of the clamping plate 3. Wherein, 400mm≤L2≤600mm, 200≤W≤300mm, preferably, L2=500mm, W=250mm. A large-size simulated blood cell counting chamber is more convenient for teachers and students to use, and facilitates the explanation of the principles of blood cell experiments and the observation of the counting chamber's structure.

[0036] As one embodiment, the base plate 1 and the clamping plate 3 can be fixed together with rivets, which is convenient, practical, and has a simple fixing structure with low cost. It should be noted that the fixing method between the base plate 1 and the clamping plate 3 is not limited. They can be fixed with screws, magnets, or even tape after being covered, as long as they can be stably fixed together.

[0037] As one embodiment, the cover plate and clamping plate 3 are transparent acrylic sheets, which facilitates observation of the plastic balls in the sample grid. The base plate 1 can also be made of transparent acrylic sheet, and the surface of the base plate 1 can be covered with a frosted film (not shown in the figure). On the surface of the frosted film, the frosted film can be removed according to the positions of the five-point sampling method to form five distinct transparent areas, which helps students understand the sampling positions. It should be noted that the positions of the five-point sampling method are existing technology and will not be illustrated or described in this application.

[0038] The principle behind this invention is as follows: Existing hematology counting chambers are too small to easily observe their internal structure. Therefore, many students struggle to understand the counting principles and cell count estimation methods of hematology counting chambers.

[0039] This teaching aid simulates and magnifies a hemocytometer. Square grids 11 are set on the base plate 1 to divide the area, and multiple square grids 11 are formed through square grooves 31 on the clamping plate 3. This allows students to directly and clearly observe the internal structure of the counting chamber. During use, appropriately sized plastic balls and solution are poured into the square grooves to simulate blood cells. Based on the observed counting chamber structure and the number of balls in the square grids, the number of balls per unit volume can be estimated, and the density of the balls in the solution can be determined. By using this counting chamber, microscopic experimental operations are made macroscopic, further enhancing students' understanding of the use and principles of hemocytometers.

[0040] Those skilled in the art will understand that, without conflict, the above-mentioned preferred solutions can be freely combined and superimposed.

[0041] It should be understood that the above-described embodiments are merely exemplary and not restrictive. Without departing from the basic principles of this utility model, any obvious or equivalent modifications or substitutions made by those skilled in the art regarding the above details will be included within the scope of the claims of this utility model.

Claims

1. A large-scale simulated blood cell counting chamber, characterized in that, Includes base plate, cover plate and clamping plate The surface of the base plate is provided with multiple square grids; The clamping plate is fixed above the base plate. The surface of the clamping plate is provided with square grooves, and multiple square grids are located in the square grooves, which divide the square grooves into multiple sample squares. The cover plate can be placed over the clamping plate to cover the square groove.

2. The large-scale simulated blood cell counting chamber as described in claim 1, characterized in that, The surface of the clamp plate has grooves on both sides corresponding to the square groove.

3. The large-scale simulated blood cell counting chamber as described in claim 1, characterized in that, The side length of the square grid is L1, and the thickness of the square groove is H, wherein 4mm≤L1≤6mm and 9mm≤H≤11mm.

4. The large-scale simulated blood cell counting chamber as described in claim 1, characterized in that, The length of the base plate is L2, and the width of the base plate is W, wherein 400mm≤L2≤600mm and 200≤W≤300mm.

5. The large-scale simulated blood cell counting chamber as described in claim 1, characterized in that, The base plate and the clamping plate are fixed together with rivets.

6. The large-scale simulated blood cell counting chamber as described in claim 1, characterized in that, The clamping plate is a transparent acrylic sheet.

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