Blood cell smear auxiliary device

Abstract

The utility model discloses a blood cell smear auxiliary device. The blood cell smear auxiliary device comprises a blood filling pool and an adjusting part, the blood filling pool is provided with a containing groove used for containing blood, the groove bottom face of the containing groove is opened to be used for being matched with a glass slide, and the adjusting part comprises a first adjusting piece and a second adjusting piece. The first adjusting piece and the second adjusting piece are oppositely arranged in the blood filling pool, and the first adjusting piece and the second adjusting piece can move so as to adjust the volume of the containing groove. According to the blood cell smear auxiliary device, the preparation efficiency and quality of the blood smear can be remarkably improved, and a more reliable sample is provided for hematological examination, so that the accuracy and efficiency of medical diagnosis are promoted.

Description

Technical Field

[0001] This application relates to the fields of medical devices and biological detection technology, and in particular to a blood cell smear auxiliary device. Background Technology

[0002] Blood smear (also known as blood smear or blood sample) is a laboratory test used to assess the morphology and quantity of various cells in the blood. This test is of high value for the preparation of blood smear samples, the identification of cell morphology, and the diagnosis of various diseases. At present, the existing blood smear technology has the following shortcomings and drawbacks: (1) Operational consistency problem: manual operation relies heavily on the skill and experience of the operator, which may lead to differences in smears prepared by the same operator at different times; the quality difference between different operators is more significant, making it difficult to guarantee stable smear quality. (2) Preparation efficiency and automation adaptation problem: traditional manual smear methods are time-consuming and inefficient when dealing with a large number of samples; in addition, manual smear technology is often difficult to seamlessly adapt to existing automated blood cell analyzers, which may require additional standardization steps to ensure compatibility between systems. (3) Operational safety problem: the complexity of manual operation leads to unavoidable contact with blood during the process, increasing the risk of operators being infected with bloodborne pathogens. (4) Smear quality issues: Uneven cell distribution often occurs at the edges and tails of smears, resulting in some areas having excessively sparse or dense cells, which affects counting and subsequent analysis; in addition, the mechanical force applied during preparation may cause red blood cells to break or deform, affecting morphological judgment. (5) Drying, fixation and staining issues in sample processing: The empirical operation of manual smears in the past resulted in different smears having unevenness, different thicknesses and inconsistent blood volumes, which affected the subsequent drying and fixation speed, thereby changing cell morphology and affecting the subsequent staining effect. (6) Sample standardization issues: Different laboratories have different methods for smear preparation and lack unified quality control standards; at the same time, environmental factors such as temperature and humidity will also have a significant impact on smear quality. (7) Problem of loss of special cells: Since the proportion of rare or abnormal cells in the overall sample is low, it may be difficult to retain these important information during the smear process, which will pose a challenge to the early diagnosis of diseases such as leukemia. (8) High blood sample volume requirements: Traditional smear techniques usually require a large number of blood samples, and it is often difficult to collect enough samples for newborns or critically ill patients. In summary, existing blood smear sample preparation techniques suffer from several shortcomings, including inconsistent operation, low efficiency, high safety risks, unstable smear quality, and difficulty in standardization. This patent's improvements addressing these issues will help enhance diagnostic accuracy and laboratory testing efficiency, and promote the development of automation and standardization technologies. Utility Model Content

[0003] Therefore, it is necessary to provide a blood cell smear preparation aid. The blood cell smear preparation aid of this invention can solve at least one or more technical problems in the background art. This blood cell smear preparation aid of this invention can significantly improve the efficiency and quality of blood smear preparation, providing more reliable samples for hematological examinations, thereby promoting the accuracy and efficiency of medical diagnosis.

[0004] One embodiment of this application provides a blood cell smear auxiliary device.

[0005] A blood cell smear assist device includes a blood filling pool and an adjustment component. The blood filling pool has a receiving groove for containing blood, and the bottom surface of the receiving groove is open for fitting a glass slide. The adjustment component includes a first adjustment plate and a second adjustment plate, which are disposed opposite to each other in the blood filling pool. The first adjustment plate and the second adjustment plate are movable to adjust the volume of the receiving groove.

[0006] In some embodiments, the receiving groove is an elongated groove, and the width of the groove opening is greater than the width of the groove bottom, so that the receiving groove as a whole is an inverted trapezoidal groove.

[0007] In some embodiments, the blood filling pool includes a first fixed plate, a second fixed plate, and side plates. The first fixed plate and the second fixed plate are arranged at intervals relative to each other. A plurality of side plates are connected between the first fixed plate and the second fixed plate. The first fixed plate, the second fixed plate, and the side plates constitute the blood filling pool. The space enclosed between the first fixed plate, the second fixed plate, and the side plates forms the receiving groove.

[0008] In some embodiments, the distance between the first fixing plate and the second fixing plate gradually increases from the side that mates with the glass slide to the side that is away from the glass slide.

[0009] In some embodiments, the first adjusting plate is disposed close to the first fixed plate, the first adjusting plate is parallel to the first fixed plate, and the first adjusting plate can move away from or close to the first fixed plate.

[0010] In some embodiments, the second adjusting plate is disposed close to the second fixed plate, the second adjusting plate is parallel to the second fixed plate, and the second adjusting plate can move away from or close to the second fixed plate.

[0011] In some embodiments, the blood filling pool is prepared from a biocompatible material, preferably from medical-grade polypropylene or polystyrene plastic.

[0012] In some embodiments, the materials used to prepare the first and / or second adjustment sheets include biocompatible materials. Preferably, the materials used to prepare the first and / or second adjustment sheets include medical-grade polypropylene plastic or polystyrene plastic.

[0013] In some embodiments, the blood cell smear assist device further includes a rotating component mounted on the blood filling pool, the rotating component being connected to the first adjusting plate and / or the second adjusting plate, the rotating component being capable of adjusting the distance between the first adjusting plate and the second adjusting plate.

[0014] In some embodiments, the rotating component includes a rotating knob and a transmission structure. The rotating knob is rotatably connected to the blood filling pool. The rotating knob is connected to the transmission structure and can drive the transmission structure to move through the rotation. The transmission structure is connected to the first adjusting plate and / or the second adjusting plate.

[0015] In some embodiments, the rotary knob is provided with multiple scale lines, and the outer wall of the blood filling pool is provided with indicator lines. When the rotary knob is rotated to different scale lines, the first adjustment plate and / or the second adjustment plate can adjust the receiving groove to a predetermined volume.

[0016] In some embodiments, the blood cell smear assist device further includes a glass slide that cooperates with the blood filling pool, the blood filling pool being movably connected to the glass slide and capable of moving along the glass slide to achieve smear preparation.

[0017] The aforementioned blood smear assist device allows for adjustment of the volume of the receiving tank as needed, enabling precise control of the blood volume and improving the stability of smear quality. During smear preparation, after adding blood to the receiving tank, the blood filling pool is moved along the glass slide to complete the smear. The operation is simple, reduces reliance on the operator's personal skills, and improves the consistency and repeatability of smear results. This application includes a blood filling pool and adjustment components, used in conjunction with a glass slide. Its simple structure and low cost allow for widespread application in medical institutions at all levels. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0019] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0020] Figure 1 This is a side view of the blood cell smear auxiliary device according to an embodiment of the present invention;

[0021] Figure 2 This is a top view schematic diagram of a blood cell smear auxiliary device according to an embodiment of the present invention.

[0022] Explanation of reference numerals in the attached figures

[0023] 10. Blood cell smear auxiliary device; 100. Blood filling pool; 101. Receiving groove; 102. First fixing plate; 103. Second fixing plate; 104. Side plate; 200. Adjustment component; 201. First adjustment piece; 202. Second adjustment piece; 300. Rotation knob; 400. Glass slide. Detailed Implementation

[0024] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0028] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0029] In this document, "optionally," "optionally," and "optional" mean that something is optional, that is, it is selected from either "with" or "without." If multiple "options" appear in a technical solution, unless otherwise specified and there are no contradictions or mutual constraints, each "option" is independent. In this application, descriptions such as "optionally contains" and "optionally includes" indicate "contains or does not contain."

[0030] In this application, when numerical intervals (i.e., numerical ranges) are mentioned, unless otherwise specified, the distribution of selectable numerical values ​​within the numerical interval is considered continuous, and includes the two endpoints of the numerical interval (i.e., the minimum and maximum values), as well as every numerical value between these two endpoints. Unless otherwise specified, when a numerical interval refers only to integers within that numerical interval, it includes the two endpoint integers of the numerical range, as well as every integer between the two endpoints, which is equivalent to directly listing every integer. When multiple numerical ranges are provided to describe features or characteristics, these numerical ranges can be merged. In other words, unless otherwise specified, the numerical ranges disclosed in this application should be understood to include any and all subranges included therein. The "numerical value" in the numerical interval can be any quantitative value, such as a number, percentage, ratio, etc. The term "numerical interval" can be broadly included to include percentage intervals, ratio intervals, proportion intervals, etc.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] This application provides a blood cell smear assist device to solve at least one of the following problems existing in the current blood smear preparation technology: (1) When preparing blood smears manually, it is difficult for the operator to accurately control the amount of blood, resulting in unstable smear quality; (2) Traditional methods rely on the operator's experience and skills, resulting in poor consistency and repeatability of smear results; (3) Existing automated equipment is large in size and cost, and is not suitable for widespread application in primary healthcare institutions; (4) The amount of blood samples used is large, which may cause unnecessary waste in some cases. The blood cell smear assist device will be described below with reference to the accompanying drawings.

[0033] The blood cell smear auxiliary device 10 provided in this application embodiment is exemplary; please refer to [link to example]. Figure 1 As shown, Figure 1 This is a side view of the blood cell smear preparation aid 10 provided in an embodiment of this application. The blood cell smear preparation aid 10 of this application can be used for the preparation of blood cell smears.

[0034] To more clearly illustrate the structure of the blood cell smear assist device 10, the following description of the blood cell smear assist device 10 will be provided in conjunction with the accompanying drawings.

[0035] For example, please refer to Figure 1As shown, a blood cell smear assist device 10 includes a blood filling pool 100 and an adjusting component 200. The blood filling pool 100 has a receiving groove 101 for containing blood. The bottom surface of the receiving groove 101 is open for fitting with a glass slide 400. The adjusting component 200 includes a first adjusting piece 201 and a second adjusting piece 202. The first adjusting piece 201 and the second adjusting piece 202 are disposed opposite to each other in the blood filling pool 100. The first adjusting piece 201 and the second adjusting piece 202 are movable to adjust the volume of the receiving groove 101.

[0036] The aforementioned blood smear assist device 10 can adjust the volume of the receiving tank 101 as needed, precisely controlling the amount of blood used and improving the stability of smear quality. During smear preparation, after adding blood to the receiving tank 101, the blood filling pool 100 is moved along the glass slide 400 to complete the smear. The operation is simple, reducing reliance on the operator's personal skills and improving the consistency and repeatability of smear results. This application includes a blood filling pool 100 and an adjustment component 200, used in conjunction with the glass slide 400. Its simple structure and low cost make it widely applicable in medical institutions at all levels and suitable for large-scale production.

[0037] It should be noted that, see Figure 2 As shown, Figure 2 This is a top view schematic diagram of the blood cell smear auxiliary device according to an embodiment of the present invention. The shape and size of the first adjusting piece 201 and the shape and size of the second adjusting piece 202 are adapted to the shape and size of the side of the blood filling pool 100. The side edges of the first adjusting piece 201 and the side edges of the second adjusting piece 202 are in contact with the inner sidewall of the blood filling pool 100 and can slide and dynamically seal with the inner sidewall of the blood filling pool 100, so as to realize that the first adjusting piece 201 and the second adjusting piece 202 can move along the inner sidewall of the blood filling pool 100. In this way, the first adjusting piece 201 and the second adjusting piece 202 can adjust the space between the first adjusting piece 201 and the second adjusting piece 202 by moving closer or further apart, so as to adjust the volume of the receiving groove 101.

[0038] In some embodiments, the receiving groove 101 is an elongated groove. The width of the opening of the receiving groove 101 is greater than the width of the bottom of the receiving groove 101, making the receiving groove 101 an inverted trapezoidal groove overall. This application uses the inverted trapezoidal groove design to facilitate blood dripping and air bubble removal.

[0039] In some embodiments, the blood filling pool 100 includes a first fixing plate 102, a second fixing plate 103, and side plates 104. The first fixing plate 102 and the second fixing plate 103 are disposed opposite to each other. A plurality of side plates 104 are connected between the first fixing plate 102 and the second fixing plate 103. The first fixing plate 102, the second fixing plate 103, and the side plates 104 constitute the blood filling pool 100. The space enclosed between the first fixing plate 102, the second fixing plate 103, and the side plates 104 forms the receiving groove 101.

[0040] In some embodiments, the distance between the first fixing plate 102 and the second fixing plate 103 gradually increases from the side that mates with the glass slide 400 to the side that is away from the glass slide 400.

[0041] In some embodiments, the first adjusting piece 201 is disposed close to the first fixing plate 102. The first adjusting piece 201 is parallel to the first fixing plate 102. The first adjusting piece can move away from or close to the first fixing plate 102. In this case, the shape and size of the first adjusting piece 201 are adapted to the shape and size of the first fixing plate 102.

[0042] In some embodiments, the second adjusting piece 202 is disposed close to the second fixing plate 103. The second adjusting piece 202 is parallel to the second fixing plate 103 and can move away from or close to the second fixing plate 103. This application utilizes adjustable first adjusting piece 201 and second adjusting piece 202 to precisely control the blood sample volume to meet different smear requirements. In this case, the shape and size of the second adjusting piece 202 are adapted to the shape and size of the second fixing plate 103.

[0043] In some embodiments, the first adjusting piece 201 and the second adjusting piece 202 may also be parallel to the side plate 104. Correspondingly, in this case, the shape and size of the first adjusting piece 201 are adapted to the shape and size of one of the side plates 104, and the shape and size of the second adjusting piece 202 are adapted to the shape and size of the other side plate 1043.

[0044] In some embodiments, the blood filling pool 100 is prepared from materials that are biocompatible.

[0045] Preferably, the blood filling pool 100 is made of medical-grade polypropylene plastic or polystyrene plastic. Medical-grade polypropylene plastic or polystyrene plastic can reduce manufacturing costs.

[0046] In some embodiments, the material used to prepare the first regulating sheet 201 includes a biocompatible material.

[0047] In some embodiments, the material used to prepare the second regulating sheet 202 includes a biocompatible material.

[0048] Preferably, the first adjusting plate 201 is made of medical-grade polypropylene plastic or polystyrene plastic. The second adjusting plate 202 is made of medical-grade polypropylene plastic or polystyrene plastic.

[0049] In some embodiments, the blood cell smear assist device 10 further includes a rotating component. The rotating component is mounted on the blood filling pool 100. The rotating component is also connected to the first adjusting plate 201 and / or the second adjusting plate 202. The rotating component can adjust the distance between the first adjusting plate 201 and the second adjusting plate 202. For example, the rotating component is simultaneously connected to both the first adjusting plate 201 and the second adjusting plate 202. When the rotating component moves, it can drive the first adjusting plate 201 and the second adjusting plate 202 to move. This movement can be synchronous or asynchronous. Synchronous movement means that the first adjusting plate 201 and the second adjusting plate 202 simultaneously move towards each other or move away from each other. Asynchronous movement means that only one of the first adjusting plate 201 and the second adjusting plate 202 needs to move.

[0050] In some embodiments, the rotating component includes a rotating knob 300 and a transmission structure. The rotating knob 300 is rotatably connected to the blood filling pool 100. The rotating knob 300 is connected to the transmission structure and can drive the transmission structure to move through rotation. The transmission structure is connected to the first adjusting plate 201 and / or the second adjusting plate 202. The transmission structure is not shown in the drawings.

[0051] In some embodiments, the transmission structure can be a meshing transmission, hinge transmission, screw transmission, or other transmission forms.

[0052] For example, in some embodiments, the transmission structure is as follows: a gear is provided on the shaft of the rotary knob 300, and a chain is rotatably connected to the first fixed plate 102 and the second fixed plate 103. The chain extends from the first fixed plate 102 to the second fixed plate 103 and meshes with the gear. The first adjusting plate 201 or the second adjusting plate 202 is connected to the chain through a connecting block. When the gear rotates, it drives the chain to rotate. The rotation of the chain drives the position of the first adjusting plate 201 or the second adjusting plate 202 to change, thereby adjusting the distance between the first adjusting plate 201 and the second adjusting plate 202 and changing the effective volume of the 100 blood filling pool.

[0053] For example, in some embodiments, the transmission structure is as follows: the first adjusting plate 201 and the second adjusting plate 202 are respectively arranged parallel to the two side plates 104; the shaft of the rotating knob 300 is provided with an external thread; a guide rod is provided between the two side plates 104; and the first adjusting plate 201 or the second adjusting plate 202 is slidably connected to the guide rod. The first adjusting plate 201 or the second adjusting plate 202 is provided with an internal threaded hole. The shaft of the rotating knob 300 is threadedly engaged with the internal threaded hole of the first adjusting plate 201 or the second adjusting plate 202. When the rotating knob 300 is rotated, the thread drives the first adjusting plate 201 or the second adjusting plate 202 to move linearly along the axial direction of the rotating knob 300, thereby adjusting the distance between the first adjusting plate 201 and the second adjusting plate 202 and changing the effective volume of the 100 blood filling pool. The threaded transmission has a self-locking function, which can precisely control the position of the first adjusting plate 201 and the second adjusting plate 202 and prevent positional deviation caused by vibration.

[0054] The rotation distance of the knob 300 can be set as follows: the distance that the first adjusting plate 201 or the second adjusting plate 202 moves along the axis of the knob 300 is determined by the pitch. For example, when the pitch is 0.8 mm, when the knob 300 is rotated a certain angle, such as 15° (the angle of rotation along the circumference in either clockwise or counterclockwise direction), the first adjusting plate 201 or the second adjusting plate 202 moves 0.8 mm. Through the scale markings on the knob 300, the operator can intuitively adjust the knob 300 to the desired position, thereby precisely controlling the blood volume. The scale markings on the knob 300 are distributed along the circumference and correspond one-to-one with the movement distance of the first adjusting plate 201 or the second adjusting plate 202, ensuring precise control of the blood volume. It should be noted that... Figure 1 The scale markings on the rotary knob 300 are for illustrative purposes only; the specific scale distribution can be set according to the rotation angle and pitch.

[0055] In some embodiments, the rotary knob 300 is provided with multiple scale lines. Indicator lines are provided on the outer wall of the blood filling pool 100. When the rotary knob 300 is rotated to different scale lines, the first adjusting plate 201 and / or the second adjusting plate 202 can adjust the receiving groove 101 to a predetermined volume. This application employs a rotary scale design to achieve quantitative control of blood volume and improve the consistency of smears.

[0056] The graduation marks correspond to specific graduation values. The graduation range can be set according to actual needs, such as 1 μL to 20 μL, to accommodate the preparation requirements of different types of blood cell smears. The minimum graduation can be set to 1 μL, and the maximum graduation can be determined based on the maximum capacity of the blood filling pool (100 mL), such as 20 μL. The graduation marks have been experimentally verified and calibrated to ensure their accuracy and reliability.

[0057] In some embodiments, the blood cell smear assist device 10 further includes a glass slide 400. The glass slide 400 mates with the blood filling pool 100. The blood filling pool 100 is movably connected to the glass slide 400 and can move along the glass slide 400 to perform smear preparation. The bottom of the blood filling pool 100 is designed with a slot or other fixing structure to fix a standard-sized glass slide 400 in a suitable position within the blood filling pool 100, ensuring the stability and consistency of the smear process. For non-standard-sized glass slides 400, adapters or other adjustment mechanisms can be provided to ensure the versatility of the device.

[0058] The blood smear preparation device of this invention includes the following steps in its smear operation process:

[0059] (1) Insert a standard-sized glass slide 400 into the bottom of the blood filling pool 100.

[0060] (2) Add the blood sample to the receiving tank 101 of the blood filling pool 100.

[0061] (3) Rotate the knob 300 to the corresponding scale line according to the required blood volume.

[0062] (4) Push the blood filling pool 100 smoothly on the glass slide 400 so that the blood forms a uniform thin layer on the glass slide 400.

[0063] (5) Based on the results of the first smear, fine-tune the rotation knob by 300 to obtain the optimal smear thickness and cell density.

[0064] Compared with the prior art, the blood smear preparation device of this utility model has the following advantages and positive effects:

[0065] (1) Precise control of blood volume: The innovative design of the adjustment knob 300 and its scale line allows the operator to precisely control the required blood volume, thereby significantly improving the consistency and repeatability of smear quality and completely solving the problem of difficult control of blood volume in traditional manual preparation.

[0066] (2) Simple operation and lower technical threshold: The device greatly simplifies the smear preparation process. The operator only needs to turn the knob 300 to the preset scale to adjust the blood volume. In this way, even personnel without rich experience can easily prepare high-quality blood smears, thereby reducing the dependence on professional skills.

[0067] (3) Improve efficiency and save time: Compared with traditional methods, this device can quickly complete the preparation of smears, significantly improve work efficiency, and effectively reduce the need to repeat the preparation of smears due to unqualified smears, thereby saving valuable laboratory time and resources.

[0068] (4) Conserving blood samples: The combination of the 100-cell blood filling pool and the precise adjustment mechanism ensures that only the minimum necessary amount of blood is used for each smear. This feature is particularly important when handling precious or difficult-to-collect blood samples, helping to maximize sample utilization.

[0069] (5) Strong adaptability and compatibility: By adjusting the rotary knob 300 to different scale lines, this device can flexibly adapt to various blood testing needs, such as thick or thin smears. At the same time, its good compatibility with standard glass slides 400 enhances its wide applicability in various laboratory environments.

[0070] (6) Cost-effectiveness: Compared with expensive automated equipment, this device has a simple structure, low manufacturing cost, and is easy to maintain and clean. In long-term use, its significant cost-effectiveness makes it an ideal choice for medical institutions and laboratories at all levels.

[0071] (7) Improved diagnostic accuracy: Due to the significant improvement in the quality and consistency of smears, the blood smears prepared by this device provide more reliable samples for subsequent microscopic examination and pathological analysis, which indirectly improves the diagnostic accuracy of hematological tests and helps in the early detection and accurate diagnosis of diseases.

[0072] (8) Reduced biosafety risks: The design of this device effectively reduces the operator’s chance of direct contact with blood during the preparation process, thereby reducing the risk of infection by bloodborne pathogens and providing a safer working environment for medical personnel and laboratory staff.

[0073] In summary, the blood smear preparation device of this invention, with its innovative design, not only solves the shortcomings of traditional methods in terms of blood volume control, ease of operation, efficiency, and safety, but also significantly improves the overall performance and diagnostic accuracy of the product, demonstrating broad prospects for clinical application.

[0074] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0075] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0076] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A blood cell smear auxiliary device, characterized in that, The device includes a blood filling pool and an adjusting component. The blood filling pool has a receiving groove for containing blood, and the bottom surface of the receiving groove is open for fitting a glass slide. The adjusting component includes a first adjusting plate and a second adjusting plate, which are disposed opposite to each other in the blood filling pool. The first adjusting plate and the second adjusting plate are movable to adjust the volume of the receiving groove.

2. The blood cell smear auxiliary device according to claim 1, characterized in that, The receiving groove is an elongated groove, and the width of the groove opening is greater than the width of the groove bottom, so that the receiving groove as a whole is an inverted trapezoidal groove.

3. The blood cell smear auxiliary device according to claim 1, characterized in that, The blood filling pool includes a first fixed plate, a second fixed plate, and side plates. The first fixed plate and the second fixed plate are arranged at intervals relative to each other. A plurality of side plates are connected between the first fixed plate and the second fixed plate. The first fixed plate, the second fixed plate, and the side plates constitute the blood filling pool. The space enclosed between the first fixed plate, the second fixed plate, and the side plates forms the receiving groove.

4. The blood cell smear auxiliary device according to claim 3, characterized in that, The distance between the first fixing plate and the second fixing plate gradually increases from the side that fits with the glass slide to the side that is away from the glass slide.

5. The blood cell smear auxiliary device according to claim 3, characterized in that, The first adjusting plate is disposed close to the first fixed plate, the first adjusting plate is parallel to the first fixed plate, and the first adjusting plate can move away from or close to the first fixed plate; And / or, the second adjusting plate is disposed close to the second fixed plate, the second adjusting plate is parallel to the second fixed plate, and the second adjusting plate can move away from or close to the second fixed plate.

6. The blood cell smear auxiliary device according to claim 1, characterized in that, The blood filling pool is prepared using biocompatible materials, including medical-grade polypropylene plastic or polystyrene plastic. And / or, the materials used to prepare the first adjustment sheet and / or the second adjustment sheet include biocompatible materials, and the materials used to prepare the first adjustment sheet and / or the second adjustment sheet include medical-grade polypropylene plastic or polystyrene plastic.

7. The blood cell smear auxiliary device according to any one of claims 1 to 6, characterized in that, The blood cell smear auxiliary device further includes a rotating component, which is installed in the blood filling pool. The rotating component is also connected to the first adjusting plate and / or the second adjusting plate, and the rotating component can adjust the distance between the first adjusting plate and the second adjusting plate.

8. The blood cell smear auxiliary device according to claim 7, characterized in that, The rotating component includes a rotating knob and a transmission structure. The rotating knob is rotatably connected to the blood filling pool. The rotating knob is connected to the transmission structure and can drive the transmission structure to move through the rotation. The transmission structure is connected to the first adjusting plate and / or the second adjusting plate.

9. The blood cell smear auxiliary device according to claim 8, characterized in that, The rotary knob is provided with multiple scale lines, and the outer wall of the blood filling pool is provided with indicator lines. When the rotary knob is rotated to different scale lines, the first adjustment plate and / or the second adjustment plate can adjust the receiving groove to a predetermined volume.

10. The blood cell smear auxiliary device according to any one of claims 1-6 and 8-9, characterized in that, The blood cell smear assist device also includes a glass slide, which cooperates with the blood filling pool. The blood filling pool is movably connected to the glass slide and can move along the glass slide to achieve smear preparation.

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