Bubble discharging component for biochemical reagent bottle and reagent bottle capable of preventing misjudgment of liquid level

Abstract

The utility model discloses a bubble removing component for a biochemical reagent bottle and a reagent bottle capable of preventing misjudgment of liquid level, the bubble removing component comprises a hollow main body, the hollow main body is operably inserted below the liquid level of a reagent in the reagent bottle through a bottle opening of the reagent bottle and is kept by the reagent bottle; the bubble discharging structure arranged at the lower part of the hollow main body is used for discharging bubbles floating on the liquid level of the reagent when the hollow main body is inserted into the liquid level of the reagent; the communication ports are formed in the lower part of the hollow main body, and the communication ports are constructed to only allow reagent liquid to flow between the inner cavity of the reagent bottle and the inner cavity of the hollow main body and not allow bubbles to pass through; the opening is formed in the top of the hollow main body, is positioned above the liquid level of a reagent and is used for a reagent needle to extend into so as to suck the reagent liquid in the hollow main body. By using the bubble discharging component disclosed by the utility model, the reagent bubble can be prevented from misleading the reagent to misjudge the liquid level of the reagent.

Description

Technical Field

[0001] The utility model relates to the technical field of medical testing and detection, in particular to a bubble discharge component for a biochemical reagent bottle and a reagent bottle for preventing misjudgment of liquid level. Background Art

[0002] In order to ensure that the reagent needle can absorb the reagent accurately and effectively, the fully automatic biochemical analyzer currently used in medical examinations has a liquid level detection function. This detection function generally uses capacitance technology, that is, when the reagent needle inserted into the reagent bottle reaches the reagent liquid surface, the detection capacitance device installed on the reagent needle detects that the capacitance signal obtained when the reagent needle contacts the reagent is significantly different from the capacitance when the reagent needle contacts the air before. According to the change in the capacitance signal of the reagent needle, it can be identified whether the reagent needle has reached the reagent liquid surface. Usually, after detecting the reagent liquid surface, the reagent needle will continue to drop slightly for about 2mm and then stop, and absorb the reagent at this position. The reagent needle enters 2mm below the reagent liquid surface, which can ensure that enough reagent is absorbed, but it will not drop too deep, causing the surface of the reagent needle to be covered with reagent and inconvenient to clean.

[0003] Biochemical reagents have complex ingredients and are often good conductive reagent liquids. The capacitance difference between the reagent and the air is obvious, but some biochemical reagents are more likely to form bubbles. If there are bubbles in the reagent bottle, when the reagent needle contacts the bubbles floating on the reagent liquid surface, the good conductivity of the reagent bubbles will cause the capacitance signal of the reagent needle to change significantly, causing the reagent needle to mistakenly believe that it has reached the reagent liquid surface. In this case, the reagent needle cannot absorb enough reagent, resulting in the problem of incorrect test results.

[0004] At present, there is a lack of reliable methods to effectively identify and eliminate bubbles generated in reagent bottles, or to distinguish whether the reagent needle touches the reagent liquid surface or the reagent bubble through the existing capacitance detection. At present, it mainly depends on the operator to carefully observe whether there are bubbles in the reagent bottle before loading the reagent. If there are bubbles, they are sucked out by instruments such as pipettes. However, for reagents that are more prone to bubble formation, even if the bubbles in the reagent bottle are eliminated when loading the reagent, new bubbles may be formed at any time during the operation of the instrument due to the repeated movement of the reagent bottle with the reagent disk, resulting in large waves on the reagent liquid surface in the reagent bottle. When the bubbles drift to the reagent needle absorption area, it will cause the reagent needle to misjudge that the reagent absorption is insufficient, resulting in detection errors.

[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the utility model, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to ordinary technicians in this field. Utility Model Content

[0006] Purpose of the utility model: The technical problem to be solved by the utility model is to provide a bubble removal component for a biochemical reagent bottle and a reagent bottle for preventing misjudgment of the liquid level in view of the deficiencies in the prior art, which can remove bubbles in the area when the reagent needle is inserted into the reagent absorption area to prevent the reagent from misjudging the reagent liquid level.

[0007] In order to solve the above technical problems, the first aspect of the utility model discloses a bubble removal component for a biochemical reagent bottle, the bubble removal component comprising:

[0008] A hollow body, the hollow body being operable to be inserted through the mouth of the reagent bottle below the reagent liquid level in the reagent bottle and held by the reagent bottle;

[0009] A bubble discharge structure disposed at the lower part of the hollow body, the bubble discharge structure is used to discharge bubbles floating on the reagent liquid surface when the hollow body is inserted into the reagent liquid surface;

[0010] One or more communication ports are provided at the lower part of the hollow body. Since the communication ports are located at an extremely low position of the reagent liquid level, they are constructed to only allow the reagent liquid to flow at the bottom of the reagent bottle cavity and through the hollow body between its bottom through hole and the hollow body cavity, while bubbles float on the reagent liquid surface and cannot flow between the reagent liquid surface of the reagent bottle and the hollow body cavity.

[0011] And an opening is provided at the top of the hollow body, the upper edge of the opening at the top is higher than the reagent liquid level and the height difference is not less than 5mm, and the opening at the top is used for the reagent needle to extend into to absorb the reagent liquid in the hollow body.

[0012] In the present application, the hollow body is held by the reagent bottle, which means that when held, the hollow body is stably fixed in the mouth of the reagent bottle and does not shake as the reagent bottle moves.

[0013] In this embodiment, since the opening is located above the reagent liquid level, the reagent liquid level in the reagent bottle cannot cross from the top to enter the interior of the hollow body. The reagent needle only enters the inner cavity space of the hollow body through the opening at the top of the hollow body to absorb the reagent.

[0014] The utility model discloses a bubble discharge component for a biochemical reagent bottle. When in use, the hollow main body thereof is inserted into the bottom of the inner cavity of the reagent bottle through the mouth of the reagent bottle and is held by the reagent bottle. When the hollow main body is inserted into the reagent liquid surface, if there are bubbles on the reagent liquid surface in the original reagent bottle, due to the buoyancy of the bubbles and the bubble discharge structure of the lower inclined surface of the bubble discharge component, the bubbles are floated along the outer wall of the bubble discharge component to the upper layer of the reagent liquid surface outside the bubble discharge component, so that the bubbles formed on the reagent liquid surface of the original reagent bottle can be discharged and not enter the interior of the hollow main body. However, since the reagent liquid in the reagent bottle has a larger specific gravity and the pressure inside the hollow main body is equal to that in the inner cavity of the reagent bottle, the reagent liquid directly enters the inner cavity of the hollow main body through a connecting port arranged at the lower part of the hollow main body. In addition, since the reagent tray of the instrument will constantly shift and stop during the operation of the instrument and the reagent liquid surface in the inner cavity of the reagent bottle is relatively large, it is easy for new bubbles to form in the reagent bottle due to the back and forth flow of the reagent liquid surface during this process. However, the bubbles formed on the reagent liquid surface of the reagent bottle are located above the reagent liquid surface and cannot sink to the bottom of the bottle. In general, the bubbles in the reagent will not expand excessively to the mouth of the reagent bottle. Therefore, even if bubbles are formed on the reagent liquid surface of the reagent bottle, they cannot enter the inner cavity of the hollow body. Therefore, the bubble removal component prevents the reagent needle from contacting the bubbles on the inner surface of the reagent bottle. At the same time, in the internal area of ​​the bubble removal component, the reagent liquid surface is much smaller than the reagent liquid surface of the reagent bottle, and the reagent liquid surface is completely isolated from the reagent liquid surface. Therefore, the reagent liquid surface in the inner cavity of the bubble removal component fluctuates less with the movement of the reagent bottle, and the probability of forming new bubbles is also greatly reduced, especially avoiding the possibility of forming larger bubbles (diameter ≥ greater than 2mm). Therefore, after installing the bubble removal component of the utility model, the reagent needle of the biochemical analyzer will only absorb the reagent in the inner cavity of the bubble removal component. Therefore, since the bubble removal component is installed in the reagent bottle, the risk of the reagent needle contacting the reagent liquid bubbles and the risk of misjudging the reagent liquid level are greatly reduced.

[0015] Specifically, the hollow body is in the shape of a hollow tube, and the inner cavity of the hollow body extends along the length direction of the tube.

[0016] Specifically, the bubble-removing structure is the outer wall surface of the lower part of the hollow body, and the outer wall surface of the lower part of the hollow body is a conical surface or a pyramidal surface, which is larger at the top and smaller at the bottom, and the upper inner and outer walls of the bubble-removing structure are consistent in size and match the inner and outer walls of the hollow body.

[0017] Specifically, the maximum width or maximum diameter of the cross section of the inner cavity of the hollow body perpendicular to the vertical direction does not exceed 25 mm.

[0018] Optionally, the top of the upper portion of the hollow body is provided with an outward flange structure, and when the bottom end of the hollow body is inserted into the reagent bottle through the mouth of the reagent bottle, the outward flange structure of the top of the upper portion is hung on the mouth of the reagent bottle.

[0019] Specifically, when the hollow body is in close contact with the inner side of the reagent bottle mouth, a ventilation channel is formed for communicating the internal gas of the reagent bottle with the outside of the bottle mouth. The ventilation channel is used to replenish air in the reagent bottle when the reagent liquid level drops, otherwise negative pressure is formed in the reagent bottle.

[0020] Specifically, at least one of the communication ports is opened at the lower bottom end of the hollow body; and the circumference of the communication port opened at the lower bottom end of the hollow body is not greater than 8 mm.

[0021] Optionally, the hollow body can be hung on the mouth of the reagent bottle. When hung, a gap is provided between the bottom end of the hollow body and the bottom of the inner cavity of the reagent bottle, and the gap is connected to the communication port opened at the bottom end of the lower part of the hollow body.

[0022] Alternatively, the bubble removal member includes one or more protrusions arranged at the bottom end of the hollow body, the protrusions abut against the bottom of the inner cavity of the reagent bottle to form a reagent liquid flow channel and keep the hollow body in the reagent bottle, the reagent liquid flow channel connects the communication port of the hollow body and the inner cavity of the reagent bottle;

[0023] Alternatively, the lower bottom end of the hollow body abuts against the bottom of the inner cavity of the reagent bottle to keep the hollow body in the reagent bottle, and the bubble removal component includes a liquid inlet groove opened at the lower bottom end of the hollow body, and the liquid inlet groove connects the connecting port of the hollow body and the inner cavity of the reagent bottle.

[0024] No matter which mode the utility model adopts, a passage for reagent flow is reserved between the bottom of the lower end of the device and the inner cavity of the reagent bottle, and the inner cavity of the hollow body and the inner cavity of the reagent bottle, so as to keep the reagent liquid flowing freely between the two cavities.

[0025] Optionally, the bubble removal component can be formed by splicing one or more parts.

[0026] Optionally, at least one of the communication ports is opened on the inner cavity side wall of the hollow body, and the communication port is in the shape of a hole with a hole diameter less than or equal to 2 mm.

[0027] Optionally, the hollow body is a hollow concentric circular tube or a polygonal tube such as a square, and the inner cavity of the hollow body extends along the tube length direction.

[0028] The second aspect of the utility model discloses a reagent bottle for preventing misjudgment of liquid level, which comprises a reagent bottle and the above-mentioned bubble removal component for the biochemical reagent bottle.

[0029] Optionally, the bubble removal component is fixed integrally with the reagent bottle.

[0030] Beneficial effects:

[0031] 1) The bubble removal component for a biochemical reagent bottle disclosed in the utility model, when in use, the hollow body thereof is inserted into the bottom of the inner cavity of the reagent bottle through the mouth of the reagent bottle and is held by the reagent bottle; when the hollow body is inserted into the reagent liquid surface, the bubble removal structure arranged on the outer wall of the hollow body removes the bubbles floating on the reagent liquid surface, and at the same time, only the reagent liquid in the reagent bottle flows from the inner cavity of the reagent bottle into the inner cavity of the hollow body through the connecting port opened at the lower part of the hollow body, and the bubbles are isolated on the outside of the hollow body and cannot enter the inner cavity of the hollow body through the connecting port. When the reagent needle of the instrument absorbs the reagent, the reagent needle extends through the opening opened at the top of the hollow body to absorb the reagent liquid in the hollow body. The reagent needle in the present application is inserted into the inner cavity of the hollow body to absorb the reagent liquid. On the one hand, the bubbles have been expelled and isolated outside the hollow body. On the other hand, the cross-section of the inner cavity of the hollow body is greatly reduced compared to the cross-section of the inner cavity of the reagent bottle, thereby greatly reducing the risk of bubbles forming in the inner cavity of the hollow body due to the turbulence of the reagent liquid level. Therefore, compared with the method in the prior art that the reagent needle directly extends into the inner cavity of the reagent bottle for absorption, the use of the bubble removal component can avoid the influence of bubbles on the misjudgment of the reagent needle detection, which is beneficial to ensure the quality of the test results of the biochemical analyzer.

[0032] 2) The bubble removal component for the biochemical reagent bottle of the utility model has a simple structure and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods, and the above and / or other advantages of the present invention will become more clear.

[0034] Figure 1 It is a main cross-sectional view of a bubble removal component for a biochemical reagent bottle disclosed in the first embodiment of the utility model;

[0035] Figure 2 It is a main cross-sectional view of the assembly structure of the bubble removal component for a biochemical reagent bottle and the reagent bottle disclosed in the first embodiment of the utility model;

[0036] Figure 3 It is a main cross-sectional view of the assembly structure of the bubble removal component for a biochemical reagent bottle and the reagent bottle disclosed in the second embodiment of the utility model;

[0037] Figure 4 This is a main cross-sectional view of the assembly structure of the bubble removal component for a biochemical reagent bottle and the reagent bottle disclosed in the third embodiment of the utility model.

[0038] Figure 5 for Figure 4 A partial enlarged view of .

[0039] Description of the accompanying drawings:

[0040] 110. Hollow body; 120. Bubble discharge structure; 130. Communication port; 140. Opening; 150. Outer flange structure; 160. Protrusion; 170. Liquid inlet groove; 200. Reagent bottle; 210. Bottle mouth; 220. Reagent liquid level; 230. Bubble; 240. Bottom of the inner cavity of the reagent bottle. DETAILED DESCRIPTION

[0041] Example 1

[0042] See also Figure 1 This embodiment discloses a bubble removal component for a biochemical reagent bottle, which includes a hollow body 110, a bubble removal structure 120 arranged at the lower part of the hollow body 110, one or more communication ports 130 opened at the lower part of the hollow body 110, and an opening 140 opened at the top of the hollow body 110.

[0043] See also Figure 2 The hollow body 110 is operably inserted through the mouth 210 of the reagent bottle 200 below the reagent liquid level 220 in the reagent bottle 200 and is held by the reagent bottle 200. In some embodiments, the hollow body 110 is inserted below the reagent liquid level 220 in the reagent bottle 200 and reaches the bottom 240 of the inner cavity of the reagent bottle 200.

[0044] The bubble discharge structure 120 is used to discharge bubbles 230 floating on the reagent liquid surface 220 when the hollow body 110 is inserted into the reagent liquid surface 220.

[0045] The communication port 130 is configured to allow only the reagent liquid to flow between the inner cavities of the reagent bottle 200 and the inner cavities of the hollow body 110 , but not to allow the air bubbles 230 to pass into the inner cavities of the hollow body 110 .

[0046] The upper edge of the top opening 140 is higher than the reagent liquid level 220 and the height difference is not less than 5mm, so the reagent liquid in the reagent bottle cannot cross from the upper part of the hollow body 110 into the inner cavity of the hollow body 110. The opening 140 is used for the reagent needle to extend into to absorb the reagent liquid in the hollow body 110.

[0047] The utility model discloses a bubble-discharging component for a biochemical reagent bottle. When in use, the hollow body is inserted into the bottom of the inner cavity of the reagent bottle through the mouth of the reagent bottle and is held by the reagent bottle. When the hollow body is inserted into the reagent liquid surface, the bubble-discharging structure arranged on the outer wall of the hollow body discharges the bubbles floating on the reagent liquid surface. At the same time, only the reagent liquid in the reagent bottle flows from the inner cavity of the reagent bottle into the inner cavity of the hollow body through the connecting port opened at the lower part of the hollow body. The bubbles are isolated on the outside of the hollow body and cannot enter the inner cavity of the hollow body through the connecting port. When the reagent needle of the instrument absorbs the reagent, the reagent needle extends through the opening opened at the top of the hollow body to absorb the reagent liquid in the hollow body. The reagent needle in the present application is inserted into the inner cavity of the hollow body to absorb the reagent liquid. On the one hand, the bubbles have been expelled and isolated outside the hollow body. On the other hand, the cross-section of the inner cavity of the hollow body is greatly reduced compared to the cross-section of the inner cavity of the reagent bottle, thereby greatly reducing the risk of bubbles forming in the inner cavity of the hollow body due to the turbulence of the reagent liquid level. Therefore, compared with the method in the prior art that the reagent needle directly extends into the inner cavity of the reagent bottle for absorption, the use of the bubble removal component can avoid the influence of bubbles on the misjudgment of the reagent needle detection, which is beneficial to ensure the quality of the test results of the biochemical analyzer.

[0048] In some embodiments, when the hollow body 110 is held in the reagent bottle 200 , the distance between the opening 140 and the reagent liquid surface is greater than or equal to 8 mm.

[0049] In this embodiment, the communication openings 130 are all opened at the lower bottom end of the hollow body 110. Preferably, the circumference of the communication openings 130 opened at the lower bottom end of the hollow body 110 is not greater than 8 mm.

[0050] It should be understood that some communication ports 130 may be opened on the inner cavity side wall of the hollow body 110. These communication ports 130 are preferably hole-shaped, and the hole diameter is preferably less than or equal to 2 mm. Since the specific gravity of bubbles formed in the reagent liquid is much lower than that of the reagent liquid, the bubbles will automatically float upwards and will not flow through these communication ports 130 in the two isolated inner cavities.

[0051] In this embodiment, the bubble removal component can be made of a single inert plastic material such as PE, HDPE or PP, or can be made of a combination of multiple materials.

[0052] In this embodiment, see Figure 1 The hollow body 110 is a hollow concentric circular tube or a polygonal tube such as a square tube, and the inner cavity of the hollow body 110 extends along the tube length direction.

[0053] It should be understood that in order to adapt to the existing reagent needle extending into and out of the mouth of the reagent bottle in the vertical direction to absorb the reagent, the hollow body 110 of this embodiment is vertically placed in the reagent bottle 200, so as to be perpendicular to the reagent liquid level in the reagent bottle 200. Another advantage of this arrangement is that it can ensure that the reagent needle is not easy to touch the inner cavity wall when it is extended into the inner cavity of the hollow body 110.

[0054] Preferably, the maximum width of the cross section of the inner cavity of the hollow body 110 perpendicular to the vertical direction does not exceed 25 mm.

[0055] In this embodiment, see Figure 1 The bubble removal structure 120 is the outer wall surface of the lower part of the hollow body 110. The outer wall surface of the lower part of the hollow body 110 is a conical surface or a pyramidal surface, which is larger at the top and smaller at the bottom. The upper inner and outer walls of the bubble removal structure 120 are consistent in size and coincide with the inner and outer walls of the hollow body 11.

[0056] In this embodiment, see Figure 1 The top of the hollow body 110 is provided with an outer flange structure 150, which may be a partial or complete annular structure. Figure 2 , when the bottom end of the hollow body 110 is inserted into the reagent liquid level 220 in the reagent bottle 200 through the mouth 210 of the reagent bottle 200, the outer flange structure 150 is hung on the mouth 210 of the reagent bottle 200, so that the hollow body 110 is supported on the reagent bottle 200. In order to avoid the bottom of the inner cavity of the reagent bottle blocking the communication port 130, when hanging, a gap is provided between the bottom end of the hollow body 110 and the cavity bottom 240 of the inner cavity of the reagent bottle 200. More specifically, a flange groove for accommodating the outer flange structure 150 is provided on the upper inner side of the mouth 210 of the reagent bottle 200. When the outer flange structure 150 is placed in the flange groove, the top surface of the outer flange structure 150, i.e., the top surface of the bubble discharge member, is flush with the top surface of the mouth 210 of the reagent bottle 200, or the maximum deviation does not exceed ±10mm.

[0057] In this embodiment, see Figure 1 When the hollow body 110 is in close contact with the inner side of the mouth 210 of the reagent bottle 200, a ventilation channel is formed for the internal gas of the reagent bottle 200 to communicate with the outside of the mouth 210. The ventilation channel is used to replenish air in the reagent bottle when the reagent liquid level drops, otherwise negative pressure is formed in the reagent bottle.

[0058] Example 2

[0059] For the connecting port 130 opened at the bottom end of the hollow main body 110, in order to avoid the connecting port 130 being blocked by the bottom of the inner cavity of the reagent bottle, Example 1 hangs the hollow main body 110 on the bottle mouth 210 of the reagent bottle 200 through the external flange structure 150, and a gap is set between the bottom end of the hollow main body 110 and the bottom 240 of the inner cavity of the reagent bottle 200.

[0060] Different from Example 1, see Figure 3 In this embodiment, the bubble removal component may not be hung on the mouth 210 of the reagent bottle 200, but directly abuts against the bottom 240 of the inner cavity of the reagent bottle 200 through the bottom end. In order to prevent the inner cavity bottom of the reagent bottle from blocking the connecting port 130, the bubble removal component includes one or more protrusions 160 arranged at the bottom end of the hollow body 110. The protrusions 160 abut against the bottom 240 of the inner cavity of the reagent bottle 200 to form a reagent liquid flow channel and keep the hollow body 110 in the reagent bottle 200. The reagent liquid flow channel connects the connecting port 130 of the hollow body 110 and the inner cavity of the reagent bottle 200.

[0061] Example 3

[0062] See also Figure 4 The bubble removal member of this embodiment also directly abuts against the bottom 240 of the inner cavity of the reagent bottle 200 through the bottom end, so that the hollow body 110 is retained in the reagent bottle 200. Different from the protrusion 160 set in embodiment 2, see Figure 4 and Figure 5 In this embodiment, the bubble removal component includes a liquid inlet groove 170 opened at the bottom of the hollow body 110, and the liquid inlet groove 170 connects the communication port 130 of the hollow body 110 with the inner cavity of the reagent bottle 200. That is, more than one liquid inlet groove 170 is arranged around the communication port 130 at the bottom of the hollow body 110 to ensure that the reagent liquid can flow freely between the reagent bottle 200 and the inner cavity of the hollow body 110.

[0063] Example 4

[0064] This embodiment discloses a reagent bottle for preventing misjudgment of liquid level, which includes a reagent bottle 200 and the bubble removal component for biochemical reagent bottles disclosed in the above embodiment. The bubble removal component and the reagent bottle 200 can be fixed as one body or two bodies.

[0065] In addition, other auxiliary devices can be arranged on the outside of the hollow body 110, such as a protruding supporting structure at the lower end of the hollow body, so that the hollow body 110 can be stably placed in the reagent bottle and ensure that it is completely concentric with the position of the reagent bottle mouth, so as to ensure that the reagent needle can vertically downwardly absorb the reagent in the reagent bottle.

[0066] The utility model provides a bubble removal component for a biochemical reagent bottle and a reagent bottle for preventing misjudgment of the liquid level. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the utility model. All components not specified in this embodiment can be implemented using existing technologies. The utility model can also be applied to instruments such as fully automatic immunoassay analyzers and fully automatic blood coagulation analyzers.

Claims

1. A bubble removal component for a biochemical reagent bottle, characterized in that: include: A hollow body (110), the hollow body (110) being operable to be inserted through the mouth (210) of the reagent bottle (200) below the reagent liquid level (220) in the reagent bottle (200) and held by the reagent bottle (200); A bubble discharge structure (120) disposed at the lower part of the hollow body (110), the bubble discharge structure (120) being used to discharge bubbles (230) floating on the reagent liquid surface (220) when the hollow body (110) is inserted into the reagent liquid surface (220); One or more communication ports (130) are provided at the lower portion of the hollow body (110), wherein the communication ports (130) are configured to only allow the reagent liquid to flow between the inner cavity of the reagent bottle (200) and the inner cavity of the hollow body (110), while not allowing air bubbles (230) to pass into the inner cavity of the hollow body (110); and an opening (140) formed at the top of the hollow body (110), wherein the upper edge of the opening (140) is higher than the reagent liquid level (220) and the height difference is not less than 5 mm, and the opening (140) is used for a reagent needle to extend into to absorb the reagent liquid in the hollow body (110).

2. The bubble removal component for a biochemical reagent bottle according to claim 1, characterized in that: The hollow body (110) is in the shape of a hollow concentric circular tube or a polygonal tube, and the inner cavity of the hollow body (110) extends along the length direction of the tube.

3. The bubble removal component for a biochemical reagent bottle according to claim 2, characterized in that: The bubble removal structure (120) is the outer wall surface of the lower part of the hollow body (110), and the outer wall surface of the lower part of the hollow body (110) is a conical surface or a pyramidal surface, which is larger at the top and smaller at the bottom, and the upper inner and outer walls of the bubble removal structure (120) are consistent in size and coincide with the inner and outer walls of the hollow body (110).

4. The bubble removal component for a biochemical reagent bottle according to claim 1, characterized in that: The maximum width or maximum diameter of the cross section of the inner cavity of the hollow body (110) perpendicular to the vertical direction does not exceed 25 mm.

5. The bubble removal component for a biochemical reagent bottle according to claim 1, characterized in that: The top end of the upper portion of the hollow body (110) is provided with an outer flange structure (150). When the bottom end of the hollow body (110) is inserted into the reagent bottle (200) through the mouth (210) of the reagent bottle (200), the outer flange structure (150) is hung on the mouth (210) of the reagent bottle (200) to fix the bubble removal component.

6. The bubble removal component for a biochemical reagent bottle according to claim 1, characterized in that: When the hollow body (110) is in close contact with the inner side of the mouth of the reagent bottle (200), a ventilation channel is formed for allowing the internal gas of the reagent bottle (200) to communicate with the outside of the bottle mouth.

7. The bubble removal component for a biochemical reagent bottle according to claim 1, characterized in that: At least one of the communication openings (130) is opened at the lower bottom end of the hollow body (110); and the circumference of the communication opening (130) opened at the lower bottom end of the hollow body (110) is not greater than 8 mm.

8. The bubble removal component for a biochemical reagent bottle according to claim 7, characterized in that: The hollow body (110) can be hung on the mouth (210) of the reagent bottle (200). When hung, a gap is provided between the bottom end of the hollow body (110) and the bottom (240) of the inner cavity of the reagent bottle (200), and the gap connects the inner cavity of the reagent bottle and the inner cavity of the hollow body (110); Alternatively, the bubble removal component includes one or more protrusions (160) arranged at the bottom end of the hollow body (110), the protrusions (160) abut against the bottom (240) of the inner cavity of the reagent bottle (200) to form a reagent liquid flow channel and keep the hollow body (110) in the reagent bottle (200), and the reagent liquid flow channel connects the communication port (130) of the hollow body (110) and the inner cavity of the reagent bottle (200); Alternatively, the lower bottom end of the hollow body (110) contacts the bottom (240) of the inner cavity of the reagent bottle (200) so that the hollow body (110) is retained in the reagent bottle (200), and the bubble removal component includes a liquid inlet groove (170) opened at the lower bottom end of the hollow body (110), and the liquid inlet groove (170) connects the inner cavity of the hollow body (110) with the inner cavity of the reagent bottle (200).

9. The bubble removal component for a biochemical reagent bottle according to claim 1, characterized in that: At least one of the communication openings (130) is opened on the side wall of the hollow main body (110), and the communication opening (130) is in the shape of a hole, with a hole diameter less than or equal to 2 mm.

10. A reagent bottle for preventing misjudgment of liquid level, characterized in that: It comprises a reagent bottle (200) and a bubble removal component for a biochemical reagent bottle as claimed in any one of claims 1 to 8.

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