Sample adding assembly and sample analyzer

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By using a combination of a suction pipe, air intake pipe and a check valve in the sample loading assembly of the sample analyzer, the problem of reagents being easily deteriorated during the absorption process is solved, effectively preservation and use of reagents are achieved, and the cost of reagents is reduced.

CN222652984UActive Publication Date: 2025-03-21SHENZHEN DYMIND BIOTECH

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Patent Information

Application Number: CN202420875045.2
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-04-22
Publication Date: 2025-03-21
Estimated Expiration: 2034-04-22

AI Technical Summary

Technical Problem

During the reagent absorption process of existing sample analyzers, the reagents are easily affected by air components and deteriorate, resulting in frequent reagent replacement and increasing costs.

Method used

A sample loading assembly is provided, including a reagent bottle assembly and a reagent bottle holder. The reagent bottle assembly is connected through a suction pipe, an intake pipe and a check valve to ensure that air enters the reagent bottle in one direction, maintains internal and external air pressure balance, and reduces air contact with the reagent.

Benefits of technology

It effectively reduces the probability of reagent deterioration, extends the use cycle of reagents, reduces the cost of reagents, and simplifies the structure of reagent sample reagent device.

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Abstract

The sample adding assembly provided by the embodiment of the utility model comprises a reagent bottle assembly, the reagent bottle assembly comprises a reagent bottle, a reagent bottle cap, a liquid suction pipe, an air inlet pipe and a one-way valve, the reagent bottle cap covers a bottle opening of the reagent bottle and comprises a first through hole and a second through hole, and the liquid suction pipe is arranged in the first through hole; one end of the liquid suction pipe is arranged in the reagent bottle through the first through hole, the first end of the air inlet pipe is arranged in the reagent bottle through the second through hole, the second end of the air inlet pipe is connected with the one-way valve, and external air enters the reagent bottle through the one-way valve and the air inlet pipe. The one-way valve is arranged at the second end of the air inlet pipe, when a reagent in the reagent bottle is sucked out through the liquid suction pipe, external air enters the reagent bottle in a single direction through the one-way valve and the air inlet pipe, interaction between the air in the reagent bottle and the external air is reduced, and due to the arrangement of the one-way valve, excessive air is prevented from entering the reagent bottle, and the reagent bottle is prevented from being polluted. Reagents in the reagent bottles are reacted, and the reagent cost of the sample adding assembly is reduced.

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Description

Technical Field

[0001] The present application relates to the technical field of reagent aspiration, and in particular to a sample adding component and a sample analyzer. Background Art

[0002] When the sample analyzer detects the sample liquid, it usually needs dye and other reagents to assist the detection. When the sample analyzer extracts dye and other reagents, the dye and other reagents are in an unsealed state. The dye and other reagents are easily affected by the components in the air and deteriorate, affecting the function of the reagents in the sample analyzer. Therefore, the sample analyzer needs to frequently replace the reagents to ensure the accuracy of the detection, which increases the reagent cost.

[0003] In another method, the user can also use aluminum foil bag packaging and negative pressure suction to reduce the contact between air and reagents, but this method will make the structure of the reagent adding device complicated, and it is difficult to place the device packaged with the aluminum foil bag in the sample analyzer. Utility Model Content

[0004] In order to solve the above technical problems, the present application provides a sample adding component. The sample adding component includes a reagent bottle component and a reagent bottle bracket, wherein the reagent bottle bracket is used to place and fix the reagent bottle component.

[0005] Wherein, the reagent bottle assembly comprises a reagent bottle and a reagent bottle cap corresponding to the bottle mouth of the reagent bottle, and the reagent bottle cap is arranged on the bottle mouth of the reagent bottle to seal the reagent bottle;

[0006] Among them, the reagent bottle cap includes a first through hole and a second through hole, and the sample addition component also includes a pipette, an air inlet pipe and a one-way valve. One end of the pipette is arranged in the reagent bottle through the first through hole, and the first end of the air inlet pipe is arranged in the reagent bottle through the second through hole; the second end of the air inlet pipe is connected to the one-way valve, and the outside air enters the reagent bottle through the one-way valve and the air inlet pipe.

[0007] Wherein, the first end of the air inlet pipe is located above the liquid level of the reagent in the reagent bottle.

[0008] Wherein, the reagent bottle assembly further comprises a flexible sealing pad, and the flexible sealing pad is located between the reagent bottle cap and the bottle mouth of the reagent bottle;

[0009] Wherein, the flexible sealing pad includes two through holes respectively arranged corresponding to the first through hole and the second through hole.

[0010] Wherein, the one-way valve comprises:

[0011] A valve seat having an accommodating space and provided with at least one air inlet hole and at least one air outlet hole, wherein the at least one air inlet hole is arranged on a first side of the valve seat, and the at least one air outlet hole is arranged on a second side of the valve seat, the second side of the valve seat is connected to the second end of the air inlet pipe, and the first side of the valve seat is arranged away from the air inlet pipe;

[0012] A valve core is located in the accommodating space, and the valve core is a hollow structure including an accommodating cavity, and one end of the valve core abuts against the first side of the valve seat;

[0013] The spring component is located in the accommodating space, with one end of the spring component disposed in the accommodating cavity and the other end of the spring component abutting against the second side.

[0014] Wherein, the bottom of the reagent bottle comprises a groove, and the groove is arranged corresponding to the bottle mouth of the reagent bottle;

[0015] When the reagent bottle cap is covered with the bottle mouth of the reagent bottle, one end of the pipette is located in the groove.

[0016] Wherein, the sample adding component also includes an air pump component, and the air pump component is connected to the other end of the pipette;

[0017] The air pump assembly is used to control the pipette to absorb reagent from the reagent bottle, and the air inlet pipe introduces air into the reagent bottle through the one-way valve.

[0018] Wherein, the reagent bottle support comprises:

[0019] A reagent bottle placement slot, used to place and fix the reagent bottle;

[0020] The bottle cap slot is spaced apart from the reagent bottle placement slot, and in the height direction of the reagent bottle bracket, the bottle cap slot is located above the reagent bottle placement slot; when the reagent bottle cap is away from the bottle mouth of the reagent bottle, the bottle cap slot is used to place the reagent bottle cap.

[0021] Wherein, the reagent bottle support comprises a bottom plate, two first side plates and a second side plate,

[0022] The two first side plates are arranged in parallel on the bottom plate, the second side plate is arranged on the bottom plate, and the arrangement direction of the second side plate is perpendicular to the arrangement direction of the first side plate, so as to form the reagent bottle placement slot;

[0023] Wherein, one end of the two first side plates away from the second side plates has a first notch.

[0024] Wherein, the reagent bottle holder further comprises a support member, and the longitudinal section of the support member is Z-shaped;

[0025] One end of the support member is arranged at one end of the first side plate and the second side plate away from the bottom plate, and the other end of the support member has a second notch to form the bottle cap slot.

[0026] In order to solve the above technical problems, the present application also provides a sample analyzer, including a sample adding component and a detection component as described above, wherein the detection component and the sample adding component are spaced apart, and the sample adding component is used to provide reagents for the detection component to assist the sample detection of the detection component.

[0027] Beneficial effects of the present application: Different from the prior art, the sample loading assembly provided in the embodiment of the present application includes a reagent bottle assembly and a reagent bottle holder, and the reagent bottle holder is used to place and fix the reagent bottle assembly. The reagent bottle assembly includes a reagent bottle and a reagent bottle cap, and the reagent bottle cap is covered on the bottle mouth of the reagent bottle to seal the reagent bottle. Among them, the reagent bottle cap includes a first through hole and a second through hole, and the sample loading assembly also includes a pipette, an air inlet pipe and a one-way valve, one end of the pipette is arranged in the reagent bottle through the first through hole, the first end of the air inlet pipe is arranged in the reagent bottle through the second through hole, and the second end of the air inlet pipe is connected to the one-way valve, and the outside air enters the reagent bottle through the one-way valve and the air inlet pipe. In the present application, a one-way valve is provided at the second end of the air inlet pipe. When the reagent in the reagent bottle is sucked out through the pipette, the outside air enters the reagent bottle in one direction through the one-way valve and the air inlet pipe to maintain the pressure balance in the reagent bottle. Due to the provision of the one-way valve, the volume of air entering the reagent bottle is basically equal to the volume of the reagent sucked out through the pipette, thereby preventing excessive air from entering the reagent bottle to react with the reagent in the reagent bottle, thereby reducing the reagent cost of the sample addition component. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] in:

[0030] Figure 1 It is a structural schematic diagram of the first embodiment of the sample adding component of the present application;

[0031] Figure 2 yes Figure 1 A schematic diagram of the exploded structure of the first embodiment of the sample adding assembly;

[0032] Figure 3 yes Figure 1 A schematic diagram of the cross-sectional structure of the sample loading assembly along the section line II';

[0033] Figure 4 It is a structural schematic diagram of the first embodiment of the one-way valve of the present application;

[0034] Figure 5 It is a structural schematic diagram of the first embodiment of the reagent bottle holder of the present application.

[0035] Reference numerals: sample adding component A; reagent bottle component 1; reagent bottle 11; groove 111; reagent bottle cap 12; first through hole 121; second through hole 122; pipette 13; air inlet pipe 14; one-way valve 15; valve seat 151; valve core 152; spring member 153; flexible sealing pad 16. DETAILED DESCRIPTION

[0036] The scheme of the embodiment of the present application is described in detail below in conjunction with the drawings of the specification.

[0037] In the following description, for the purpose of explanation rather than limitation, specific details such as specific system structures, interfaces, and technologies are provided to facilitate a thorough understanding of the present application.

[0038] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0039] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the objects associated before and after are in an "or" relationship. In addition, "many" in this article means two or more than two. In addition, the term "at least one" in this article means any combination of at least two of any one or more of a plurality of, for example, including at least one of A, B, and C, and can mean including any one or more elements selected from the set consisting of A, B, and C. In addition, the terms "first", "second", and "third" in this application are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features.

[0040] See also Figure 1 and Figure 2 , Figure 1 is a schematic structural diagram of the first embodiment of the sample loading assembly of the present application, Figure 2 yes Figure 1Schematic diagram of the exploded structure of the first embodiment of the sample adding assembly. The sample adding assembly A provided in the embodiment of the present application comprises a reagent bottle assembly 1 and a reagent bottle support 2.

[0041] Among them, the reagent bottle assembly 1 includes a reagent bottle 11 and a reagent bottle cap 12 corresponding to the bottle mouth of the reagent bottle 1. The reagent bottle cap 12 is covered on the bottle mouth of the reagent bottle 11 to seal the reagent bottle 11 to prevent the reagent in the reagent bottle 11 from being excessively exposed to the outside air and deteriorating.

[0042] The reagent bottle cap 12 includes a first through hole 121 and a second through hole 122, and the sample adding assembly A also includes a pipette 13, an air inlet pipe 14 and a one-way valve 15. One end of the pipette 13 is disposed in the reagent bottle 11 through the first through hole 121, the first end of the air inlet pipe 14 is disposed in the reagent bottle 11 through the second through hole 122, and the second end of the air inlet pipe 14 is connected to the one-way valve 15, and the outside air enters the reagent bottle 11 through the one-way valve 15 and the air inlet pipe 14.

[0043] Specifically, when the reagent in the reagent bottle 11 is sucked out of the reagent bottle 11 through the pipette 13, the air pressure in the reagent bottle 11 decreases, and at this time, the outside air will enter the reagent bottle 11 through the one-way valve 15 and the air inlet pipe 14 to balance the air pressure in the reagent bottle 11 and improve the smoothness of sucking the reagent in the reagent bottle 11 through the pipette 13. Since the second end of the air inlet pipe 14 is connected to the one-way valve 15, only air is allowed to enter the reagent bottle 11 from the outside through the one-way valve 15 in one direction, and the air is prevented from flowing from the reagent bottle 11 to the outside, thereby reducing the interaction between the outside and the air in the reagent bottle 11.

[0044] In one embodiment, the other end of the pipette 13 can be connected to a pressure device (not shown) to provide negative pressure to the reagent bottle 11 so as to absorb the reagent in the reagent bottle 11 through the pipette 13. In this process, due to the reduction in the volume of the reagent in the reagent bottle 11, the air pressure in the reagent bottle 11 will decrease, and the air pressure difference between the reagent bottle 11 and the outside world causes the outside air to enter the reagent bottle 11 through the one-way valve 15. When the volume of air entering the reagent bottle 11 through the one-way valve 15 is approximately equal to the volume of the reagent absorbed by the pipette 13 (in actual applications, the volume of air entering the reagent bottle 11 may be slightly less than or equal to the volume of the reagent absorbed), the air pressure in the reagent bottle 11 will be basically consistent with the outside air pressure, and at this time, the air will no longer enter the reagent bottle 11 through the one-way valve 15. That is, the setting of the one-way valve 15 also makes the volume of air entering the reagent bottle 11 approximately equal to the volume of the reagent being absorbed, thereby preventing the reagent in the reagent bottle 11 from contacting with too much air and producing a reaction, reducing the probability of the reagent in the reagent bottle 11 deteriorating, improving the safety of the reagent in the reagent bottle 11, and reducing the reagent cost in the sample addition component A.

[0045] Optionally, the first end of the air inlet pipe 14 is located above the liquid level of the reagent in the reagent bottle 11. When the outside air enters the reagent bottle 11 through the air inlet pipe 14, the air will not cause bubbles to be generated in the reagent in the reagent bottle 11, thereby reducing the contact area between the reagent in the reagent bottle 11 and the air, and avoiding the situation where the reagent in the reagent bottle 11 is excessively in contact with the air and deteriorates.

[0046] In one embodiment, if the first end of the air inlet pipe 14 is located below the liquid surface of the reagent in the reagent bottle 11, after the air enters the reagent bottle 11 through the air inlet pipe 14, the air will first contact the reagent below the liquid surface, and due to the density relationship between the air and the reagent, the air will generate bubbles in the reagent, and the bubbles will gradually rise and burst at the liquid surface, releasing the air above the liquid surface. In this process, it is easy to generate small bubbles at the liquid surface of the reagent, and in the process of the bubbles bursting and releasing air, there will be reagent droplets splashing, which increases the contact area between the reagent and the air, accelerates the contact reaction between the air and the reagent, and causes the deterioration of the reagent in the reagent bottle 11. Therefore, this embodiment proposes that the first end of the air inlet pipe 14 is located above the liquid surface of the reagent in the reagent bottle 11 to reduce the contact area between the reagent and the air in the reagent bottle 11, and reduce the occurrence of deterioration of the reagent due to the contact reaction with the air.

[0047] Alternatively, if Figure 2 and Figure 3 As shown, Figure 3 yes Figure 1 The cross-sectional structure diagram of the sample adding assembly along the section line II'. The reagent bottle assembly 1 also includes a flexible sealing pad 16, wherein the flexible sealing pad 16 can be a rubber sealing gasket or the like.

[0048] The flexible sealing pad 16 is located between the reagent bottle cap 12 and the bottle mouth of the reagent bottle 11 to seal the bottle mouth of the reagent bottle 11 to prevent air from entering the reagent bottle 11 from other positions except the air inlet pipe 14, thereby improving the safety of the reagent in the reagent bottle 11.

[0049] Among them, the flexible sealing pad 16 includes two through holes respectively arranged corresponding to the first through hole 121 and the second through hole 122, and then one end of the pipette tube 13 is arranged in the reagent bottle 11 through the first through hole 121 and the through hole on the flexible sealing pad 16, and the first end of the air inlet pipe 14 is arranged in the reagent bottle 11 through the second through hole 122 and the through hole on the flexible sealing pad 16. While ensuring the pipetting function of the sample adding component A, the sealing performance of the reagent bottle cap 12 and the reagent bottle 11 is improved, and the safety of the reagent in the reagent bottle 11 is improved.

[0050] Optionally, see Figure 4 , Figure 4 The one-way valve 15 includes a valve seat 151 , a valve core 152 and a spring member 153 .

[0051] Among them, the valve seat 151 has a accommodating space and is provided with at least one air inlet hole and at least one air outlet hole (not shown in the figure), at least one air inlet hole is arranged on the first side of the valve seat 151, and at least one air outlet hole is arranged on the second side of the valve seat 151. The second side of the valve seat 151 is connected to the second end of the air inlet pipe 14, and the first side of the valve seat 151 is arranged away from the air inlet pipe 14, so that the outside air can enter the accommodating space of the valve seat 151 through the air inlet hole on the first side of the valve seat 151, and enter the air inlet pipe 14 from the accommodating space through the air outlet hole on the second side of the valve seat 151, and enter the reagent bottle 11.

[0052] The valve core 152 is located in the accommodation space, and the valve core 152 is a hollow structure including an accommodation cavity, and one end of the valve core 152 abuts against the first side of the valve seat 151. The spring member 153 is located in the accommodation space, and one end is located in the accommodation cavity of the valve core 152, and the other end abuts against the second side of the valve seat 151. When the spring member 153 is not compressed, as shown in FIG. Figure 4 As shown, one end of the valve core 152 abuts against the first side of the valve seat 151 , and the valve core 152 blocks the air inlet hole. At this time, the air in the reagent bottle 11 and the external air cannot interact through the valve seat 151 .

[0053] Specifically, when the reagent in the reagent bottle 11 is sucked out through the pipette 13, the air pressure in the reagent bottle 11 decreases due to the reduction in the volume of the reagent in the reagent bottle 11, and is lower than the air pressure outside. Figure 4 The arrow shown pushes the valve core 152, and then the spring member 153 is compressed, one end of the valve core 152 moves away from the first side of the valve seat 151, the air inlet hole resumes circulation, and the outside air enters the reagent bottle 11 through the air inlet hole and the air outlet hole of the valve seat 151 and the air inlet pipe 14.

[0054] As air enters the reagent bottle 11, the air pressure in the reagent bottle 11 gradually increases, and the pressure difference between the reagent bottle 11 and the outside world gradually decreases, so the outside air is as follows: Figure 4 The force of the arrow shown in FIG. 1 on the valve core 152 gradually decreases, and the spring member 153 gradually recovers its original length, driving the valve core 152 to move along the Figure 4 Move in the opposite direction of the arrow shown.

[0055] Until the volume of air entering the reagent bottle 11 is approximately equal to the volume of the reagent absorbed, the air pressure in the reagent bottle 11 is equal to the external air pressure, the spring member 153 returns to its original length, one end of the valve core 152 abuts against the first side of the valve seat 151, and the valve core 152 blocks the air inlet of the valve seat 151 again.

[0056] In summary, by setting the one-way valve 15, when the reagent in the reagent bottle 11 is sucked, the volume of air entering the reagent bottle 11 is approximately equal to the volume of the sucked reagent, thereby preventing excessive air from entering the reagent bottle 11 and causing the reagent in the reagent bottle 11 to deteriorate. At the same time, air can only enter the reagent bottle 11 from the outside in one direction. When the air pressure in the reagent bottle 11 is equal to the air pressure in the outside, the valve core 152 blocks the air inlet of the valve seat 151, preventing the reagent bottle 11 from interacting with the outside air, and reducing the occurrence of contact reactions between the reagent in the reagent bottle 11 and the air.

[0057] It can be understood that each time the reagent in the reagent bottle 11 is sucked out, the volume of air entering the reagent bottle 11 is slightly less than or equal to the volume of the reagent being sucked out, that is, when the reagent in the reagent bottle 11 is completely sucked out, the total volume of air entering the reagent bottle 11 will be slightly less than or equal to the volume of the total reagent in the reagent bottle 11, thereby ensuring that the amount of reagent in the reagent bottle 11 that comes into contact with the air during the entire use process will not exceed the volume of the total reagent, thereby reducing the contact between the reagent in the reagent bottle 11 and the air, reducing the occurrence of interactive reactions between the reagent in the reagent bottle 11 and the air, and improving the safety of the reagent in the reagent bottle 11.

[0058] Alternatively, if Figure 3 As shown, the bottom of the reagent bottle 11 includes a groove 111, and the groove 111 is arranged corresponding to the bottle mouth of the reagent bottle 11. When the reagent bottle cap 12 is covered on the bottle mouth of the reagent bottle 11, one end of the pipette 13 is located in the groove 111.

[0059] Among them, when the reagent in the reagent bottle 11 is about to be completely absorbed, the reagent in the reagent bottle 11 will accumulate in the groove 111 due to the effect of gravity, which is convenient for the pipette 13 to absorb the reagent. That is, this design allows the pipette 13 to completely absorb the reagent in the reagent bottle 11, reduce the residual reagent in the reagent bottle 11, and improve the utilization rate of the reagent in the reagent bottle 11.

[0060] In another embodiment, the bottom of the reagent bottle 11 may also be configured as an inclined surface inclined toward the groove, so as to guide the reagent in the reagent bottle 11 into the groove 111 , further improving the utilization rate of the reagent in the reagent bottle 11 .

[0061] Optionally, the sample adding assembly A further includes an air pump assembly (not shown), which is connected to the other end of the pipette 13, so that the air pump assembly can provide negative pressure to the reagent bottle 11 through the pipette 13 to control the pipette 13 to absorb the reagent from the reagent bottle 11. At the same time, due to the change of the air pressure in the reagent bottle 11, the air inlet pipe 14 will pass air into the reagent bottle 11 through the one-way valve 15 to maintain the balance of the air pressure in the reagent bottle 11, thereby ensuring the smoothness of the pipette 13 to absorb the reagent.

[0062] Alternatively, if Figure 5 As shown, the reagent bottle holder 2 includes a reagent bottle placement slot 21 and a bottle cap slot 22 .

[0063] Among them, the reagent bottle placement slot 21 is used to place and fix the reagent bottle 11, and the bottle cap slot 22 is spaced apart from the reagent bottle placement slot 21, and in the height direction of the reagent bottle support 2, the bottle cap slot 22 is located above the reagent bottle placement slot 21, and when the reagent bottle cap 12 is away from the bottle mouth of the reagent bottle 11, the bottle cap slot 22 is used to place the reagent bottle cap 12. That is, when the reagent in the reagent bottle 11 is completely absorbed and the reagent bottle 11 needs to be replaced, the user can separate the reagent bottle cap 12 from the reagent bottle 11, and place the reagent bottle cap 12 on the bottle cap slot 22, so as to avoid the reagent bottle cap 12 being placed irregularly and causing pollution to the reagent bottle cap 12. At the same time, the bottle cap slot 22 is arranged above the reagent bottle placement slot 21, which further facilitates the user to separate the reagent bottle cap 12 from the reagent bottle 11, and to place the reagent bottle cap 12, thereby improving the user's experience of using the reagent bottle support 2.

[0064] In one embodiment, the reagent bottle holder 2 includes a bottom plate 211, two first side plates 212 and a second side plate (not shown). The two first side plates 212 are arranged in parallel on the bottom plate 211, and the second side plate is also arranged on the bottom plate 211, and the arrangement direction of the second side plate is perpendicular to the arrangement direction of the first side plate 212 to form a reagent bottle placement slot 21. Among them, the two first side plates 212 have a first notch 213 at one end away from the second side plate to facilitate the placement of the reagent bottle 11 in the reagent bottle placement slot 21 and the removal of the reagent bottle 11 from the reagent bottle placement slot 21.

[0065] In another embodiment, the reagent bottle holder 2 further includes a support member 221, and the longitudinal section of the support member 221 is Z-shaped. One end of the support member 221 is disposed at the first side plate 212 and the end of the second side plate away from the bottom plate 211, and the other end of the support member 221 has a second notch to form a bottle cap slot 22, wherein the second notch may be semicircular and is disposed corresponding to the shape of the reagent bottle cap 12, so that the reagent bottle cap 12 is placed on the bottle cap slot 22 more stably.

[0066] At the same time, since one end of the support member 221 is arranged on the first side plate 212 and the end of the second side plate away from the bottom plate 211, the reagent bottle 11 placed in the reagent bottle placement groove 21 can be further fixed to ensure the stability of the reagent bottle 11 in the reagent bottle holder 2.

[0067] In summary, the sample adding component A provided in the embodiment of the present application includes a reagent bottle component 1 and a reagent bottle holder 2, the reagent bottle holder 2 is used to place and fix the reagent bottle component 1, the reagent bottle component 1 includes a reagent bottle 11 and a reagent bottle cap 12, and the reagent bottle cap 12 is covered on the bottle mouth of the reagent bottle 11 to seal the reagent bottle 11.

[0068] Among them, the reagent bottle cap 12 includes a first through hole 121 and a second through hole 122, and the sample addition component A also includes a pipette 13, an air inlet pipe 14 and a one-way valve 15. One end of the pipette 13 is arranged in the reagent bottle 11 through the first through hole 121, and the first end of the air inlet pipe 14 is arranged in the reagent bottle 11 through the second through hole 122. The second end of the air inlet pipe 14 is connected to the one-way valve 15, and the outside air enters the reagent bottle 11 through the one-way valve 15 and the air inlet pipe 14.

[0069] By arranging a one-way valve 15 at the second end of the air inlet pipe 14, when the reagent in the reagent bottle 11 is sucked out through the pipette 13, the outside air enters the reagent bottle 11 in one direction through the one-way valve 15 and the air inlet pipe 14, thereby reducing the interaction between the air in the reagent bottle 11 and the outside air. In addition, due to the arrangement of the one-way valve 15, the volume of the air entering the reagent bottle 11 is substantially equal to the volume of the reagent sucked out through the pipette 13, thereby preventing excessive air from entering the reagent bottle 11 and contacting with the reagent in the reagent bottle 11 to accelerate deterioration, thereby reducing the reagent cost of the sample adding component A and increasing the service life of the reagent.

[0070] The present application also provides a sample analyzer (not shown), including a sample adding component A and a detection component. The detection component and the sample adding component A are arranged at an interval. During the process of the detection component performing sample detection, the sample adding component A is used to provide reagents to the detection component to assist in the sample detection of the sample.

[0071] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A sample adding component, characterized in that: It includes a reagent bottle assembly and a reagent bottle bracket, wherein the reagent bottle bracket is used to place and fix the reagent bottle assembly. Wherein, the reagent bottle assembly comprises a reagent bottle and a reagent bottle cap corresponding to the bottle mouth of the reagent bottle, and the reagent bottle cap is arranged on the bottle mouth of the reagent bottle to seal the reagent bottle; Among them, the reagent bottle cap includes a first through hole and a second through hole, and the sample addition component also includes a pipette, an air inlet pipe and a one-way valve. One end of the pipette is arranged in the reagent bottle through the first through hole, and the first end of the air inlet pipe is arranged in the reagent bottle through the second through hole; the second end of the air inlet pipe is connected to the one-way valve, and the outside air enters the reagent bottle through the one-way valve and the air inlet pipe.

2. The sample adding component according to claim 1, characterized in that: The first end of the air inlet pipe is located above the liquid level of the reagent in the reagent bottle.

3. The sample adding component according to claim 1, characterized in that: The reagent bottle assembly further comprises a flexible sealing pad, wherein the flexible sealing pad is located between the reagent bottle cap and the bottle mouth of the reagent bottle; Wherein, the flexible sealing pad includes two through holes respectively arranged corresponding to the first through hole and the second through hole.

4. The sample adding component according to claim 1, characterized in that: The one-way valve comprises: A valve seat having an accommodating space and provided with at least one air inlet hole and at least one air outlet hole, wherein the at least one air inlet hole is arranged on a first side of the valve seat, and the at least one air outlet hole is arranged on a second side of the valve seat, the second side of the valve seat is connected to the second end of the air inlet pipe, and the first side of the valve seat is arranged away from the air inlet pipe; A valve core is located in the accommodating space, and the valve core is a hollow structure including an accommodating cavity, and one end of the valve core abuts against the first side of the valve seat; The spring component is located in the accommodating space, with one end of the spring component disposed in the accommodating cavity and the other end of the spring component abutting against the second side.

5. The sample adding component according to claim 1, characterized in that: The bottom of the reagent bottle comprises a groove, and the groove is arranged corresponding to the bottle mouth of the reagent bottle; When the reagent bottle cap is covered with the bottle mouth of the reagent bottle, one end of the pipette is located in the groove.

6. The sample adding component according to claim 1, characterized in that: The sample adding assembly further comprises an air pump assembly, and the air pump assembly is connected to the other end of the pipette; The air pump assembly is used to control the pipette to absorb reagent from the reagent bottle, and the air inlet pipe introduces air into the reagent bottle through the one-way valve.

7. The sample adding assembly according to claim 1, characterized in that: The reagent bottle support comprises: A reagent bottle placement slot, used to place and fix the reagent bottle; The bottle cap slot is spaced apart from the reagent bottle placement slot, and in the height direction of the reagent bottle bracket, the bottle cap slot is located above the reagent bottle placement slot; when the reagent bottle cap is away from the bottle mouth of the reagent bottle, the bottle cap slot is used to place the reagent bottle cap.

8. The sample adding assembly according to claim 7, characterized in that: The reagent bottle support comprises a bottom plate, two first side plates and a second side plate, The two first side plates are arranged in parallel on the bottom plate, the second side plate is arranged on the bottom plate, and the arrangement direction of the second side plate is perpendicular to the arrangement direction of the first side plate, so as to form the reagent bottle placement slot; Wherein, one end of the two first side plates away from the second side plates has a first notch.

9. The sample adding assembly according to claim 8, characterized in that: The reagent bottle support also includes a support member, and the longitudinal section of the support member is Z-shaped; One end of the support member is arranged at one end of the first side plate and the second side plate away from the bottom plate, and the other end of the support member has a second notch to form the bottle cap slot.

10. A sample analyzer, characterized in that: It comprises the sample adding component and the detection component as described in any one of claims 1 to 9, wherein the detection component and the sample adding component are spaced apart, and the sample adding component is used to provide reagents for the detection component to assist the sample detection of the detection component.