Reagent vial assembly and blood cell analyzer containing it
By designing a suction head structure with a specific center of gravity in the blood cell analyzer, the problem of poor suction caused by the tube tilting up was solved, and more efficient liquid suction and transfer were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- EDAN INSTR
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-03
AI Technical Summary
In hematology analyzers, the tubing of reagent bottles is prone to warping, leading to poor aspiration and affecting liquid aspiration efficiency.
Design a reagent bottle assembly including a reagent bottle body, a tubing section, and a suction head. The center of gravity of the suction head is located on the side of a preset plane away from the input end. By adjusting the structure and shape of the suction head, ensure that it maintains a stable posture inside the reagent bottle and reduce liquid residue.
It improves the absorption efficiency of liquid in reagent bottles, reduces residue, and ensures smooth liquid transfer.
Smart Images
Figure CN224448571U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of testing equipment technology, and more specifically, to a reagent bottle assembly and a blood cell analyzer having the same. Background Technology
[0002] A hematology analyzer is an important testing device that plays a crucial role in blood analysis. In this field, hematology analyzers typically draw reagents from external or internal containers into the internal fluid system for use. During reagent aspiration, a flexible tube is used as the connection medium between the internal fluid system and the reagent container. However, because the tube itself is relatively soft, it is prone to warping after being inserted into the reagent container. Therefore, a counterweight is installed at the inlet end of the tube. However, the counterweight may still shift its position, deviating from its ideal design posture, resulting in poor aspiration efficiency. Utility Model Content
[0003] The main objective of this invention is to provide a reagent bottle assembly and a blood cell analyzer incorporating the assembly, in order to solve the problem of poor absorption efficiency in related technologies.
[0004] To achieve the above objectives, according to one aspect of the present invention, a reagent bottle assembly is provided for use in a blood cell analyzer. The reagent bottle assembly includes: a reagent bottle body; a flexible tube having an input end and an output end, the input end being disposed inside the reagent bottle body and the output end being located outside the reagent bottle body; and a suction head located inside the reagent bottle body and disposed at the input end, a first end of the suction head being connected to the input end, a second end of the suction head having an opening, the suction head having a suction channel communicating with the input end and the opening, and the center of gravity of the suction head being located on the side of a preset plane away from the input end, wherein the preset plane is a half-height plane of the suction head.
[0005] Furthermore, the suction head includes a connector section, a first main body section, and a second main body section arranged sequentially from the first end to the second end. The connector section is connected to the hose section, and the opening is formed at the end of the second main body section away from the first main body section. The cross-sectional area of the second main body section is larger than that of the first main body section.
[0006] Furthermore, the outer diameter of the first main body segment gradually decreases in the direction from the second end to the first end; and / or, the outer diameter of the second main body segment remains unchanged in the direction from the second end to the first end.
[0007] Furthermore, the suction channel includes a contraction section located within the first main body section and / or the second main body section, wherein the cross-sectional area of the contraction section gradually decreases in the direction from the second end to the first end.
[0008] Furthermore, the ratio of the maximum cross-sectional area of the suction channel to the minimum cross-sectional area of the suction channel is greater than or equal to 3:1 and less than or equal to 8:1.
[0009] Furthermore, a slotted structure is provided on the bottom surface of the second main body section. The first slot end of the slotted structure is connected to the suction channel, and the second slot end of the slotted structure is connected to the outer surface of the second main body section.
[0010] Furthermore, the number of slotted structures is greater than or equal to 2 and less than or equal to 4, and the multiple slotted structures are spaced apart along the circumferential direction of the second main body section; and / or, the dimension of the slotted structure in the height direction of the suction head is greater than or equal to 1 mm and less than or equal to 3 mm.
[0011] Furthermore, the reagent bottle assembly also includes a cap and a connector. The cap is closed onto the reagent bottle body, and the connector passes through the cap. The connector and the cap can rotate relative to each other. The tubular part includes an inner section and an outer section. The inner section is provided with an input end, and the outer section is provided with an output end. The inner section and the outer section are connected by the connector.
[0012] According to another aspect of this utility model, a reagent bottle assembly is provided for use in a blood cell analyzer. The reagent bottle assembly includes: a reagent bottle body; a flexible tube having an input end and an output end, the input end being disposed inside the reagent bottle body and the output end being located outside the reagent bottle body; a suction head located inside the reagent bottle body and disposed at the input end, a first end of the suction head being connected to the input end, a second end of the suction head having an opening, the suction head having a suction channel connecting the input end and the opening, the center of gravity of the suction head being located on the side away from the input end of a preset plane, wherein the preset plane is the half-height plane of the suction head; the suction head includes a connector segment, a first main body segment and a second main body segment arranged sequentially from the first end to the second end, the connector segment being connected to the flexible tube, the opening being formed at the end of the second main body segment away from the first main body segment, the cross-sectional area of the second main body segment being larger than the cross-sectional area of the first main body segment; the ratio of the maximum cross-sectional area of the suction channel to the minimum cross-sectional area of the suction channel being greater than or equal to 3:1 and less than or equal to 8:1.
[0013] According to another aspect of the present invention, a blood cell analyzer is provided, including a reagent bottle assembly, wherein the reagent bottle assembly is the reagent bottle assembly described above.
[0014] Applying the technical solution of this utility model, the reagent bottle body is used to contain the test liquid, and the flexible tube is used to draw in the test liquid and transfer it to the internal liquid path of the hematology analyzer. The flexible tube has an input end and an output end. The input end is located inside the reagent bottle body so that the test liquid can enter from the input end, and the output end is located outside the reagent bottle body and can be connected to the internal liquid path of the hematology analyzer. The suction head is located inside the reagent bottle body and is located at the input end. The first end of the suction head is connected to the input end. The suction head allows the input end to be as close as possible to the bottom of the reagent bottle body, reducing the tilting of the input end and thus protecting the reagent bottle body. The possibility of a large amount of test liquid remaining inside the reagent bottle is addressed by the following approach: The second end of the suction head has an opening, and the suction head has a suction channel connecting the input end and the opening. The test liquid enters the suction channel through the opening and then into the tubing. Because the center of gravity of the suction head is located on the side of a preset plane away from the input end (the preset plane being half-height of the suction head), the suction head is maintained in an orientation where the opening is closer to the bottom of the reagent bottle body. This allows a larger amount of test liquid inside the reagent bottle body to be drawn into the tubing, ensuring a good suction effect for the test liquid in the reagent bottle assembly. Therefore, the technical solution of this application effectively solves the problem of poor suction effect in related technologies. Attached Figure Description
[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:
[0016] Figure 1 A side view schematic diagram of the suction head of an embodiment of the reagent bottle assembly according to the present invention is shown;
[0017] Figure 2 It shows Figure 1 A cross-sectional view of the suction head;
[0018] Figure 3 A side view schematic diagram of the suction head according to another embodiment of the reagent bottle assembly of the present invention is shown;
[0019] Figure 4 It shows Figure 1 A schematic diagram of the reagent bottle assembly.
[0020] The above figures include the following reference numerals:
[0021] 1. Reagent bottle body; 2. Pre-designed flat surface; 3. Center of gravity of the suction head;
[0022] 10. Hose section;
[0023] 20. Suction head; 21. Opening; 22. Suction channel; 221. Contraction section; 23. Connector section; 231. Convex ring structure; 232. Guide surface; 24. First main body section; 25. Second main body section; 26. Grooved structure;
[0024] 30. Cover part; 31. Connector. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0026] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0027] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0028] like Figure 1 , Figure 2 as well as Figure 4As shown, this application provides a reagent bottle assembly for use in a blood cell analyzer. An embodiment of the reagent bottle assembly includes: a reagent bottle body 1, a flexible tube 10, and a suction head 20. The flexible tube 10 has an input end and an output end. The input end is located inside the reagent bottle body 1, and the output end is located outside the reagent bottle body 1. The suction head 20 is located inside the reagent bottle body 1 and positioned at the input end. A first end of the suction head 20 is connected to the input end, and a second end of the suction head 20 has an opening 21. The suction head 20 has a suction channel 22 that connects the input end and the opening 21. The center of gravity of the suction head 20 is located on the side of a preset plane 2 away from the input end, wherein the preset plane 2 is a half-height plane of the suction head 20.
[0029] Using the technical solution of this embodiment, the reagent bottle body 1 is used to contain the test liquid, and the flexible tube 10 is used to draw in the test liquid and transfer it to the internal liquid path of the blood cell analyzer. The flexible tube 10 has an input end and an output end. The input end is located inside the reagent bottle body 1 so that the test liquid can enter from the input end, and the output end is located outside the reagent bottle body 1 and can be connected to the internal liquid path of the blood cell analyzer. The suction head 20 is located inside the reagent bottle body 1 and is located at the input end. The first end of the suction head 20 is connected to the input end. The suction head 20 can make the input end as close as possible to the bottom of the reagent bottle body 1, reducing the amount of test liquid remaining inside the reagent bottle body 1 due to the input end tilting up. The second end of the suction head 20 has an opening 21, and the suction head 20 has a suction channel 22. The suction channel 22 connects the input end and the opening 21. The liquid to be tested enters the suction channel 22 through the opening 21, and then enters the tubular part 10. Since the center of gravity of the suction head 20 is located on the side of the preset plane 2 away from the input end, where the preset plane 2 is the half-height plane of the suction head 20, the suction head 20 is kept in an orientation where the opening 21 is closer to the bottom of the reagent bottle body 1 within the reagent bottle body 1. This allows a greater amount of the liquid to be tested within the reagent bottle body 1 to be drawn into the tubular part 10, thus ensuring that the reagent bottle assembly has a good suction effect on the liquid to be tested. Therefore, the technical solution of this embodiment can effectively solve the problem of poor suction effect in related technologies.
[0030] It should be noted that "half-height plane of the suction head 20" refers to, for example, Figure 2 As shown, in the horizontal plane that divides the suction head 20 into equal parts in the vertical direction, the distance from the half-height plane to the end of the first end of the suction head 20 is equal to the distance from the half-height plane to the end of the second end of the suction head 20.
[0031] like Figure 1 , Figure 2 as well as Figure 4As shown, the suction head 20 includes a connector section 23, a first main body section 24, and a second main body section 25 arranged sequentially from a first end to a second end. The connector section 23 is connected to the hose portion 10. An opening 21 is formed at the end of the second main body section 25 away from the first main body section 24. The cross-sectional area of the second main body section 25 is larger than that of the first main body section 24. Specifically, by making the lateral dimension of the second main body section 25 (i.e., the lower section of the suction head) larger than that of the first main body section 24 (i.e., the upper section of the suction head), the center of gravity of the suction head 20 is lowered until it is located on the side of the preset plane 2 away from the input end. It should be noted that "the cross-sectional area of the second main body section 25 is larger than that of the first main body section 24" means that the smallest area in the cross-section of the second main body section 25 is also larger than the largest area in the cross-section of the first main body section 24.
[0032] like Figure 1 , Figure 2 as well as Figure 4 As shown, the outer diameter of the first main body segment 24 gradually decreases in the direction from the second end to the first end, while the outer diameter of the second main body segment 25 remains constant in the same direction. Specifically, this arrangement facilitates the downward shift of the center of gravity during the machining of the suction head 20, making machining easier.
[0033] like Figure 2 As shown, the suction channel 22 includes a contraction section 221 located within the first main body section 24 and / or the second main body section 25. The cross-sectional area of the contraction section 221 gradually decreases from the second end to the first end. Specifically, the design of the contraction section 221 prevents the intake of foam from the test liquid, and compared to a solution that directly reduces the overall cross-sectional area of the contraction section 221, the gradually decreasing contraction section 221 avoids obstructing the flow of the test liquid.
[0034] like Figure 2 As shown, the ratio of the maximum cross-sectional area to the minimum cross-sectional area of the suction channel 22 is greater than or equal to 3:1 and less than or equal to 8:1. Specifically, the suction channel 22 that meets the above requirements can ensure that the suction head 20 has a strong suction force on the one hand, and ensure that the test liquid flows relatively smoothly on the other hand. The ratio of the maximum cross-sectional area to the minimum cross-sectional area of the suction channel 22 can be 3:1, 3.6:1, 4:1, 5.6:1, 6:1, 6.4:1, 7.2:1, or 8:1.
[0035] like Figure 1 as well as Figure 2As shown, a slotted structure 26 is provided on the bottom surface of the second main body segment 25. The first slot of the slotted structure 26 is connected to the suction channel 22, and the second slot of the slotted structure 26 is connected to the outer surface of the second main body segment 25. Specifically, because the slotted structure 26 can communicate with the outer surface of the second main body segment 25, a portion of the outer surface of the second main body segment 25 can also contact the liquid to be tested. This allows the liquid to enter the slotted structure 26 through this portion and then enter the suction channel 22, resulting in less residual liquid and ensuring the absorption effect of the reagent bottle assembly. More specifically, the number of slotted structures 26 is greater than or equal to two and less than or equal to four. Multiple slotted structures 26 are spaced apart along the circumferential direction of the second main body segment 25, so that a larger area of the outer surface of the second main body segment 25 can contact the liquid to be tested. The dimension of the slotted structure 26 in the height direction of the suction head 20 is greater than or equal to 1 mm and less than or equal to 3 mm. The dimension of the slotted structure 26 in the height direction of the suction head 20 can be 1mm, 1.5mm, 1.8mm, 2mm, 2.3mm, 2.8mm or 3mm.
[0036] like Figure 4 As shown, the reagent bottle assembly also includes a cap 30 and a connector 31. The cap 30 covers the reagent bottle body 1, and the connector 31 passes through the cap 30. The connector 31 and the cap 30 can rotate relative to each other. The tubing section 10 includes an inner section and an outer section. The inner section is provided with an input end, and the outer section is provided with an output end. The inner section and the outer section are connected by the connector 31. Specifically, with this configuration, the connector 31 will not rotate when the cap 30 rotates, thereby avoiding the situation where the cap 30 rotates and drives the connector 31, which in turn drives the tubing section 10 to rotate, thereby causing the suction head 20 to move, or causing the tubing section 10 to become tangled.
[0037] like Figure 3 As shown, the middle portion of the end face of the second end of the suction head 20 protrudes downwards from the edge portion of the end face of the second end of the suction head 20. That is to say, the protruding middle portion of the end face of the second end of the suction head 20 makes it easier for the liquid to be tested to enter the suction channel 22 through the opening 21.
[0038] In addition, the cap 30 is provided with a pressure balance through hole, which maintains the internal and external pressure balance of the reagent bottle body 1; the surface of the suction head 20 is covered with a protective layer, which enhances the service life of the suction head 20.
[0039] In addition, such as Figure 1 as well as Figure 2As shown, a raised ring structure 231 is provided on the outer surface of the top end of the connector section 23. The raised ring structure 231 has a guide surface 232, which gradually tapers from bottom to top. The guide surface 232 makes it easier for the connector section 23 to connect to the input end, and the raised ring structure 231 can reduce the risk of the hose section 10 coming off.
[0040] In addition, the suction head 20 is made of stainless steel, making it more durable; the density of the material of the first main body section 24 is less than that of the material of the second main body section 25, thereby achieving the effect of lowering the center of gravity.
[0041] Furthermore, this application also provides a reagent bottle assembly for use in a blood cell analyzer. An embodiment of the reagent bottle assembly includes: a reagent bottle body 1; a flexible tube 10 having an input end and an output end, the input end being disposed within the reagent bottle body 1 and the output end located outside the reagent bottle body 1; and a suction head 20 located within the reagent bottle body 1 and disposed at the input end, a first end of the suction head 20 connected to the input end, a second end of the suction head 20 having an opening 21, and a suction channel 22 connecting the input end and the opening 21. The center of gravity of the suction head 20 is located at... The preset plane 2 is located on the side away from the input end, wherein the preset plane 2 is half-height plane of the suction head 20; the suction head 20 includes a connector section 23, a first main body section 24, and a second main body section 25 arranged sequentially from a first end to a second end. The connector section 23 is connected to the hose portion 10, and an opening 21 is formed at the end of the second main body section 25 away from the first main body section 24. The cross-sectional area of the second main body section 25 is larger than the cross-sectional area of the first main body section 24; the ratio of the maximum cross-sectional area of the suction channel 22 to the minimum cross-sectional area of the suction channel 22 is greater than or equal to 3:1 and less than or equal to 8:1. The technical solution of this embodiment can effectively solve the problem of poor suction effect in related technologies.
[0042] Furthermore, this application also provides a blood cell analyzer, which includes a reagent bottle assembly, wherein the reagent bottle assembly is the aforementioned reagent bottle assembly. The aforementioned LED display module can effectively solve the problem of poor absorption in related technologies, and the blood cell analyzer with the aforementioned reagent bottle assembly also has the aforementioned advantages.
[0043] In the description of this utility model, it should be understood that "multiple" means two or more. Directional terms such as "front, back, up, down, left, right," "horizontal, vertical, perpendicular, horizontal," and "top, bottom" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are used solely for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not 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 limiting the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner or outer contours relative to the outline of each component itself.
[0044] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0045] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.
[0046] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A reagent bottle assembly for use in a hematology analyzer, characterized in that, The reagent bottle assembly includes: Reagent bottle body (1); The flexible tube (10) has an input end and an output end, the input end being disposed inside the reagent bottle body (1) and the output end being located outside the reagent bottle body (1); A suction head (20) is located inside the reagent bottle body (1) and disposed at the input end. The first end of the suction head (20) is connected to the input end. The second end of the suction head (20) has an opening (21). The suction head (20) has a suction channel (22) that connects the input end and the opening (21). The center of gravity of the suction head (20) is located on the side of the preset plane (2) away from the input end. The preset plane (2) is the half-height plane of the suction head (20).
2. The reagent bottle assembly of claim 1, wherein, The suction head (20) includes a connector section (23), a first main body section (24), and a second main body section (25) arranged sequentially from the first end to the second end. The connector section (23) is connected to the hose section (10). The opening (21) is formed at the end of the second main body section (25) away from the first main body section (24). The cross-sectional area of the second main body section (25) is larger than the cross-sectional area of the first main body section (24).
3. The reagent bottle assembly according to claim 2, characterized in that, The outer diameter of the first main body segment (24) gradually decreases in the direction from the second end to the first end; and / or, The outer diameter of the second main body segment (25) remains unchanged in the direction from the second end to the first end.
4. The reagent bottle assembly of claim 2, wherein, The suction channel (22) includes a contraction section (221) located within the first main body section (24) and / or the second main body section (25), and the cross-sectional area of the contraction section (221) gradually decreases in the direction from the second end to the first end.
5. The reagent bottle assembly of claim 1, wherein, The ratio of the maximum cross-sectional area of the suction channel (22) to the minimum cross-sectional area of the suction channel (22) is greater than or equal to 3:1 and less than or equal to 8:
1.
6. The reagent bottle assembly of claim 2, wherein, A slotted structure (26) is provided on the bottom surface of the second main body section (25). The first slot end of the slotted structure (26) is connected to the suction channel (22), and the second slot end of the slotted structure (26) is connected to the outer surface of the second main body section (25).
7. The reagent bottle assembly according to claim 6, characterized in that, The number of the slotted structures (26) is greater than or equal to two and less than or equal to four, and the multiple slotted structures (26) are spaced apart along the circumferential direction of the second main body segment (25); and / or, The grooved structure (26) has a dimension in the height direction of the suction head (20) that is greater than or equal to 1 mm and less than or equal to 3 mm.
8. The reagent bottle assembly of one of claims 1 to 7, characterized in that The reagent bottle assembly also includes a cap (30) and a connector (31). The cap (30) covers the reagent bottle body (1). The connector (31) passes through the cap (30). The connector (31) and the cap (30) are rotatable relative to each other. The tubular part (10) includes an inner section and an outer section. The inner section is provided with the input end, and the outer section is provided with the output end. The inner section and the outer section are connected through the connector (31).
9. A reagent bottle assembly for use in a hematology analyzer, characterized in that, The reagent bottle assembly includes: Reagent bottle body (1); The flexible tube (10) has an input end and an output end, the input end being disposed inside the reagent bottle body (1) and the output end being located outside the reagent bottle body (1); A suction head (20) is located inside the reagent bottle body (1) and disposed at the input end. The first end of the suction head (20) is connected to the input end. The second end of the suction head (20) has an opening (21). The suction head (20) has a suction channel (22). The suction channel (22) connects the input end and the opening (21). The center of gravity of the suction head (20) is located on the side of the preset plane (2) away from the input end. The preset plane (2) is the half-height plane of the suction head (20). The suction head (20) includes a connector section (23), a first main body section (24), and a second main body section (25) arranged sequentially from the first end to the second end. The connector section (23) is connected to the hose section (10). The opening (21) is formed at the end of the second main body section (25) away from the first main body section (24). The cross-sectional area of the second main body section (25) is larger than the cross-sectional area of the first main body section (24). The ratio of the maximum cross-sectional area of the suction channel (22) to the minimum cross-sectional area of the suction channel (22) is greater than or equal to 3:1 and less than or equal to 8:
1.
10. A hematology analyzer comprising a reagent bottle assembly, characterized by, The reagent bottle assembly is the reagent bottle assembly according to any one of claims 1 to 9.