Reagent bin and urinalysis instrument

By designing a reagent compartment with multiple chambers in the urine analyzer and utilizing the interference fit between the sealing gasket and the injection needle, the reagents can be easily installed and replaced, solving the problems of cumbersome operation and confusion in the existing technology and improving the operating efficiency of the urine analyzer.

CN223966591UActive Publication Date: 2026-03-03SHANMU (SHENZHEN) BIOTECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520553616.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2026-03-03
Estimated Expiration
2035-03-26

AI Technical Summary

Technical Problem

The existing urine analyzer and reagent compartment are cumbersome to operate when changing reagents, are easy to get confused, and are inconvenient to manage and store.

Method used

Design a reagent container comprising a container body and a sealing gasket. The container body has multiple chambers. The reagent is discharged by the interference fit between the sealing gasket and the injection needle. The container can be disassembled and installed on a urine analyzer to simplify operation.

Benefits of technology

It enables easy installation and replacement of various reagents, reduces the error rate, improves operational efficiency, and reduces assembly difficulty.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a reagent bin and a urinalysis instrument. In the utility model, the reagent bin comprises a bin body, the bin body is provided with a plurality of chambers penetrating through the bin body, and each chamber is used for injecting fluid; the cavity is provided with an outlet end formed in the bottom of the bin body; the fixing plate is connected with the bin body and located on the side, provided with the outlet end, of the bin body; the fixing plate is provided with a plurality of first through holes; the number of the first through holes is the same as that of the chambers, and the first through holes and the chambers are arranged in one-to-one correspondence; the sealing gasket is clamped between the fixing plate and the bin body, and a second through hole is formed in the sealing gasket; the number of the second through holes is the same as that of the cavities, and the second through holes and the cavities are arranged in a one-to-one correspondence mode. And the sealing film is fixed between the plate and the sealing gasket. Installation and replacement are convenient, the error rate is low, assembly difficulty is lowered, and efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of detection technology, and in particular to a reagent compartment and a urine analyzer. Background Technology

[0002] As human lifespan increases, the importance of health care and maintenance has received increasing attention. To reflect an individual's health status, bodily fluid testing, such as urinalysis, is often required. This testing involves injecting reagents into the urine sample according to different testing needs. Current testing methods involve installing multiple reagent bottles, each containing a different reagent, within the instrument. A needle is inserted into the corresponding bottle to obtain the reagent. Once the reagent in a bottle is used up, it is removed and replaced one by one. This structure requires multiple reagent bottles, making operation cumbersome, and a large number of bottles can easily lead to confusion. Alternatively, taking existing urinalysis machines as an example, the machine has a reagent module consisting of an installation tray and multiple reagent capsules. The installation tray has a ring-shaped body and multiple drainage holes penetrating the side of the ring-shaped body. The outlet of each reagent capsule can be sealed and connected to the corresponding drainage hole, allowing the acquisition of reagents from different capsules according to different testing needs. This structure also relies on disassembling and installing different capsules to maintain the operation of the urinalysis machine, which is cumbersome, and a large number of capsules can easily lead to confusion, making management and storage also difficult. Utility Model Content

[0003] The purpose of this invention is to provide a reagent compartment and urine analyzer that makes installation and replacement convenient, has a low error rate, reduces assembly difficulty, and improves efficiency.

[0004] To solve the above-mentioned technical problems, the present invention provides a reagent compartment, comprising:

[0005] The chamber has a plurality of chambers extending through it, each chamber being used for injecting fluid; each chamber has an outlet end located at the bottom of the chamber.

[0006] A fixing plate is connected to the chamber body and located on the side of the chamber body with the outlet end; the fixing plate has a plurality of first through holes; the number of the first through holes is the same as the number of the chambers, and they are arranged in a one-to-one correspondence;

[0007] A sealing gasket is sandwiched between the fixing plate and the chamber body, and the sealing gasket has a second through hole; the number of the second through holes is the same as the number of chambers, and they are arranged in a one-to-one correspondence.

[0008] Compared to existing technologies, this invention features a reagent compartment with multiple chambers, allowing for the direct injection of various reagents. A sealing gasket and a fixing plate are located at the bottom of the compartment. When the injection needle is inserted into a chamber through the first and second through holes, the sealing gasket and injection needle are press-fitted, allowing the reagent to flow out of the needle without leakage. This reagent compartment can hold multiple reagents at once and can be directly installed on the urine analyzer, enabling simultaneous installation of multiple reagents. Replacement is also simplified by disassembly of the entire unit, eliminating the need for individual bottle replacements and reducing the frequency of operation.

[0009] In one embodiment, the bottom of the chamber is provided with a groove, and the sealing gasket is at least partially embedded in the groove.

[0010] In one embodiment, each of the first through holes and each of the second through holes are coaxially arranged with their corresponding outlet ends; an installation channel is provided at the bottom of the chamber, and the cavity surrounds the outer periphery of the installation channel.

[0011] In one embodiment, the compartment body is provided with a recessed area;

[0012] The reagent compartment further includes a lifting component disposed within the recessed area;

[0013] The side wall of the compartment has a limiting component.

[0014] In one embodiment, the chamber has an inlet end, which is disposed at the top of the chamber body;

[0015] The reagent compartment also includes a leak-proof component disposed in the chamber to prevent fluid from leaking out from the inlet end.

[0016] In one embodiment, the leak-proof component is provided with a through hole, the leak-proof component is slidably disposed along the cavity wall of the cavity, and the through hole extends along the extension direction of the cavity.

[0017] In one embodiment, the fluid includes a reagent and a liquid seal oil, the chamber is used to inject the reagent and the liquid seal oil, and the liquid seal oil is closer to the inlet end than the reagent; the leak-proof component is inserted into the liquid seal oil; the diameter of the through hole of the leak-proof component is 0.1mm-10mm.

[0018] In one embodiment, the second through hole is for insertion of an injection needle, and the injection needle is interference-fitted with the sealing gasket.

[0019] In one embodiment, a plurality of the chambers are arranged around the central axis of the container, and some of the chambers are unequal in distance from the central axis of the container.

[0020] The present invention also provides a urine analyzer, comprising: a reagent compartment as described in any one of the above embodiments. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the reagent compartment according to one embodiment of the present invention;

[0022] Figure 2 This is a cross-sectional view of the reagent compartment according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of another reagent compartment according to an embodiment of the present utility model; reference numerals: 100, reagent compartment; 1, compartment body; 10, chamber; 11, outlet end; 12, inlet end; 2, fixing plate; 20, first through hole; 3, sealing gasket; 30, second through hole; 4, leak-proof component; 40, through hole; 5, sealing membrane; 6, lifting component; 7, limiting component. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0025] Unless the context requires otherwise, throughout the specification and claims, the word “comprising” and its variations, such as “including” and “having”, shall be understood to have an open, inclusive meaning, that is, to be interpreted as “including, but not limited to”.

[0026] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings to provide a clearer understanding of the purpose, features, and advantages of this utility model. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of this utility model, but are merely illustrative of the essential spirit of the technical solution of this utility model.

[0027] Throughout this specification, references to "an embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Therefore, the appearance of "in an embodiment" or "an embodiment" in various places throughout the specification does not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic may be combined in any manner in one or more embodiments.

[0028] The singular forms “a” and “the” used in this specification and the appended claims include plural references unless otherwise expressly stated herein. It should be noted that the term “or” is generally used to mean “and / or” unless otherwise expressly stated herein.

[0029] In the following description, in order to clearly demonstrate the structure and working method of this utility model, a number of directional terms will be used. However, terms such as "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", and "down" should be understood as convenient terms and not as limiting terms.

[0030] The embodiments of this utility model are described below with reference to the accompanying drawings.

[0031] One embodiment of this utility model relates to a reagent compartment 100. For example... Figure 1 and Figure 2 As shown, the reagent chamber 100 includes: a chamber body 1, which has a plurality of chambers 10 penetrating the chamber body 1, each chamber 10 for injecting fluid. Each chamber 10 has an outlet end 11 located at the bottom of the chamber body 1. The chamber body 1 may be cylindrical, with the chambers 10 extending through the chamber body 1 along its axial direction, as shown in the figure, with the outlet end 11 located at the bottom of the chamber body 1, and the chambers 10 also having an inlet end 12 located at the top of the chamber body 1. The chamber body 1 may also have other shapes, and the chambers 10 may be arranged around the axis of the chamber body 1 or according to other rules.

[0032] like Figure 1 and Figure 2 As shown, the reagent chamber 100 also includes a fixing plate 2 and a sealing gasket 3. The fixing plate 2 and the sealing gasket 3 can be locked together with screws, and the sealing gasket can be a rubber gasket. The fixing plate 2 is connected to the chamber body 1 and is located on the side of the chamber body 1 with the outlet end 11. The fixing plate 2 has multiple first through holes 20, the number of which is the same as the number of chambers 10, and they are arranged in a one-to-one correspondence. The sealing gasket 3 is clamped between the fixing plate 2 and the chamber body 1, and the sealing gasket 3 has a second through hole 30, the number of which is the same as the number of chambers 10, and they are arranged in a one-to-one correspondence. The setting of the second through hole 30 allows the injection needle to be inserted directly into the chamber 10 without puncturing it to form a hole, thus preventing the sealing gasket 3 from being enlarged due to the injection needle being inserted, which would affect the use effect.

[0033] In addition, such as Figure 1 and Figure 2 As shown, the second through hole 30 is used for insertion of the injection needle, and the injection needle is interference-fitted with the sealing gasket 3.

[0034] The reagent container 1 has multiple chambers 10, which can be directly injected with various reagents. A sealing gasket 3 and a fixing plate 2 are installed at the bottom of the container 1. When the injection needle is inserted into the chamber 10 through the first through hole 20 and the second through hole 30, the sealing gasket 3 cooperates with the injection needle to allow the reagent to flow out of the needle, preventing leakage from other places. This reagent container 100 can hold multiple reagents at once and can be directly installed on the urine analyzer, enabling the installation of multiple reagents at once. Replacement does not require replacing each bottle individually; instead, the entire container can be disassembled. This simple and convenient operation reduces the frequency of operations, prevents incorrect reagent placement, lowers the error rate, reduces assembly difficulty, and improves efficiency.

[0035] In addition, such as Figure 1 and Figure 2 As shown, a sealing membrane 5 is sandwiched between the fixing plate 2 and the sealing gasket 3. Before the reagent chamber 100 is used, the sealing membrane 5 is not punctured, and the outlet end 11 is sealed. After the reagent chamber 100 is installed on the urine analyzer, the injection needle of the urine analyzer punctures the sealing membrane 5 and enters the chamber 10 through the second through hole 30. The sealing membrane can be a plastic film or a thin film, sealing the second through hole to prevent liquid leakage. For later use, the injection needle can simply puncture the membrane.

[0036] In addition, such as Figure 1 and Figure 2 As shown, the bottom of the chamber 1 is provided with a groove, and the sealing gasket 3 is at least partially embedded in the groove.

[0037] Furthermore, such as Figure 1 and Figure 2 As shown, each first through hole 20 and each second through hole 30 are coaxially arranged with their corresponding outlet ends 11. In some embodiments, an installation channel is provided at the bottom of the chamber 1, and the cavity 10 surrounds the outer periphery of the installation channel. Other components of the urine analyzer are inserted into the installation channel to install the reagent chamber 100.

[0038] Furthermore, such as Figure 1 and Figure 2 As shown, the reagent compartment 100 also includes a leak-proof component 4 disposed in the chamber 10 to prevent fluid from leaking out from the inlet end 12.

[0039] Furthermore, such as Figure 1 and Figure 2 As shown, the leak-proof component 4 has a through hole 40. The leak-proof component 4 is slidably disposed along the cavity wall of the cavity 10, and the through hole 40 extends along the extension direction of the cavity 10.

[0040] In addition, such as Figure 1 and Figure 2As shown, the fluid includes reagents and liquid sealing oil. Chamber 10 is used to inject the reagents and liquid sealing oil, with the liquid sealing oil positioned closer to the inlet end 12. A leak-proof component 4 is inserted into the liquid sealing oil. The diameter of the through hole 40 of the leak-proof component 4 ranges from 0.1mm to 10mm. Optionally, the diameter of the through hole 40 of the leak-proof component 4 ranges from 0.1mm to 5mm, or it can be 4mm to 5mm. Alternatively, the diameter of the through hole 40 of the leak-proof component 4 can be 4.5mm, 4.7mm, or 4.8mm. During use, the reagent is injected into chamber 10 from the inlet end 12, followed by the liquid sealing oil. Simultaneously, the leak-proof component 4 is inserted into the liquid sealing oil. This ensures sufficient storage space within chamber 10 while simultaneously reducing the diameter of the chamber 10 towards the inlet end 12. Therefore, when the reagent chamber 100 is shaken and inverted during transportation or use, the fluid inside chamber 10 will not leak out from the inlet end 12.

[0041] Furthermore, the outer diameter of the leak-proof component 4 is 0.1 mm to 4 mm smaller than the inner diameter of the chamber 10. Optionally, the outer diameter of the leak-proof component 4 is 0.5 mm to 2 mm smaller than the inner diameter of the chamber 10. After the reagent is used, the leak-proof component 4 can descend with the liquid level.

[0042] Multiple chambers 10 are arranged around the central axis of the compartment 1, and the distances of some chambers 10 from the central axis of the compartment 1 are unequal. Specifically, for example... Figure 3 In this configuration, two concentric rings of chambers 10 surround the central axis of the chamber body 1. The outer ring of chambers 10 is located radially between the two inner rings of chambers 10, thus allowing for the arrangement of more chambers 10 and the placement of more reagents. The distances from the chambers in the same ring to the central axis of the chamber body can be equal. In other embodiments, the chamber layout can take many forms, with one or more rings being acceptable.

[0043] In addition, such as Figure 3 As shown, the top of the reagent compartment 1 has a recessed area, and the reagent compartment 100 also includes a lifting member 6 disposed in the recessed area. The recessed area can also be a side wall of the reagent compartment 1. In this embodiment, the lifting member 6 can be a wristband, which is hinged to the compartment body. When in use, the wristband can be pulled out of the recessed area to facilitate the installation and disassembly of the reagent compartment.

[0044] Furthermore, such as Figure 3 As shown, the side of the chamber 1 is also provided with a limiting member 7. The limiting member 7 can be a protrusion. When using the reagent chamber, the limiting member 7 matches the corresponding installation position, which allows the reagent chamber to be installed accurately and the chamber position to be aligned with the injection needle.

[0045] Another embodiment of this utility model relates to a urine analyzer, including a reagent compartment 100 as described in the above embodiment, wherein the reagent compartment 100 is an integrally replaceable component.

[0046] The urinalysis machine can be used on a toilet seat or independently to obtain a urine sample. The reagent is mixed with the urine sample and can be used for routine urinalysis, such as the 14-item ascorbic acid test, including vitamin C (VC), white blood cells (WBC), urobilinogen (URO), bilirubin (BIL), occult blood (BLD), nitrite (NIT), pH, protein (PRO), urine specific gravity (SG), urine ketones (KET), urine glucose (GLU), urine creatinine (CR), urine calcium (CA), and a comprehensive value of urine uric acid (based on the CKD-EPI algorithm) for microalbumin (MA) + urine uric acid + UACR (urine microalbumin / creatinine ratio) + UPCR (urine protein / creatinine ratio).

[0047] Understandably, the reagent compartment 100 can be used not only in the urine analyzer of this embodiment, but also in other instruments, such as blood analyzers.

[0048] Since the above embodiments correspond to this embodiment, this embodiment can be implemented in conjunction with the above embodiments. The relevant technical details mentioned in the above embodiments remain valid in this embodiment, and the technical effects achievable in the above embodiments can also be achieved in this embodiment. To reduce repetition, they will not be repeated here. Correspondingly, the relevant technical details mentioned in this embodiment can also be applied to the above embodiments.

[0049] The preferred embodiments of the present invention have been described in detail above, but it should be understood that, if necessary, aspects of the embodiments can be modified to utilize aspects, features, and concepts from various patents, applications, and publications to provide other embodiments.

[0050] In light of the detailed description above, these and other changes can be made to the embodiments. Generally, the terminology used in the claims should not be considered limited to the specific embodiments disclosed in the specification and claims, but should be understood to include all possible embodiments together with the full scope of equivalents enjoyed by these claims.

[0051] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A reagent compartment, characterized in that, include: A chamber having a plurality of chambers extending through the chamber, each chamber being used for injecting fluid; The chamber has an outlet end located at the bottom of the chamber body; A fixing plate is connected to the chamber body and located on the side of the chamber body with the outlet end; the fixing plate has a plurality of first through holes; the number of the first through holes is the same as the number of the chambers, and they are arranged in a one-to-one correspondence; A sealing gasket, the sealing gasket being sandwiched between the fixing plate and the chamber body, and the sealing gasket having a second through hole; the number of second through holes is the same as the number of chambers, and their positions are arranged in a one-to-one correspondence; and A sealing membrane, located between the fixing plate and the sealing gasket.

2. The reagent compartment according to claim 1, characterized in that, The bottom of the chamber is provided with a groove, and the sealing gasket is at least partially embedded in the groove.

3. The reagent compartment according to claim 1, characterized in that, Each of the first through holes and each of the second through holes is coaxially arranged with its corresponding outlet end; an installation channel is provided at the bottom of the chamber, and the cavity surrounds the outer periphery of the installation channel.

4. The reagent compartment according to claim 3, characterized in that, The compartment body is provided with a recessed area; The reagent compartment further includes a lifting component disposed within the recessed area; The side wall of the compartment has a limiting component.

5. The reagent compartment according to claim 1, characterized in that, The chamber has an inlet end, which is located at the top of the chamber body; The reagent compartment also includes a leak-proof component disposed in the chamber to prevent fluid from leaking out from the inlet end.

6. The reagent compartment according to claim 5, characterized in that, The leak-proof component is provided with a through hole, and the leak-proof component is slidably disposed along the cavity wall of the cavity, and the through hole extends along the extension direction of the cavity.

7. The reagent compartment according to claim 6, characterized in that, The fluid includes a reagent and a liquid sealing oil, and the chamber is used to inject the reagent and the liquid sealing oil, with the liquid sealing oil being closer to the inlet end than the reagent; the leak-proof component is inserted into the liquid sealing oil; the diameter of the through hole of the leak-proof component is 0.1mm-10mm.

8. The reagent compartment according to claim 7, characterized in that, The second through hole is for insertion of an injection needle, and the injection needle is interference-fitted with the sealing gasket.

9. The reagent compartment according to claim 1, characterized in that, Multiple chambers are arranged around the central axis of the container body, and the distances from some of the chambers to the central axis of the container body are not equal.

10. A urine analyzer, characterized in that, include: The reagent compartment as described in any one of claims 1-9.