Sample bottle and use method thereof

Abstract

The invention relates to a sample bottle which comprises a top cover, an inner bottle body and an outer bottle body which are assembled in sequence, the inner bottle body comprises a first part and a second part which extend to the outer bottle body, and a filter screen is arranged at the bottom of the first part; the first part comprises an inner wall and a cambered surface attached to the outer bottle body, a partition screen is arranged between the bottom of the inner wall and the outer bottle body, a clamping groove is formed in the inner side of the outer bottle body, the clamping groove is attached to the inner wall and the lower side of the second part during assembly, a space above the filter screen in the first part is a first cavity, and the space above the filter screen in the second part is a second cavity. A second cavity is formed in the space from the filter screen to the partition screen, a third cavity is formed in the space from the partition screen to the lower part of the second part, and the sample bottle realizes multi-stage filtration of a sample by arranging a multi-screen structure in the inner bottle body, so that accumulation of impurities on the screens is avoided; a slope is arranged at the bottom of the outer bottle body, so that samples can be conveniently collected and used.

Description

Technical Field

[0001] This invention relates to the field of sample bottle technology, specifically to a sample bottle and its usage method. Background Technology

[0002] Sample bottles are specialized containers used for collecting, storing, transporting, and processing various biological samples. Their core function is to ensure the integrity, stability, and safety of the samples, providing a reliable sample basis for subsequent testing, diagnosis, and research.

[0003] Existing sample bottles can only achieve simple sample storage. If pretreatment such as filtration or stratification is required, additional tools such as funnels and filters are needed to transfer the sample, which is not only cumbersome but also prone to sample contamination, loss, or concentration changes. Some sample bottles with filtration functions have defects such as low filtration efficiency, easy accumulation of filter residue, and inconvenient assembly and disassembly. Moreover, they lack foolproof design, and assembly errors can easily affect the use effect. Therefore, a sample bottle and its usage method are proposed to solve the above problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a sample bottle and its usage method, which has the advantages of multi-stage high-efficiency filtration and prevention of impurity accumulation, solving the problems of low filtration efficiency and easy accumulation and clogging of filter residue in traditional sample bottles.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a sample bottle comprising a top cap, a detachable inner bottle, and an outer bottle assembled sequentially. The inner bottle includes a first part and a second part extending to the outer bottle. A filter screen is provided at the bottom of the first part. The first part includes an inner wall and an arc surface that fits against the outer bottle. A partition screen is provided between the bottom of the inner wall and the outer bottle. A slot is provided on the inner side of the outer bottle. During assembly, the slot fits against the lower side of the inner wall and the second part. The space above the filter screen in the first part is a first cavity. The space from the filter screen to the partition screen forms a second cavity. The space from the partition screen to the second part forms a third cavity. The first cavity is used to hold the original sample to be filtered. After injection, the sample passes through the filter screen under gravity and enters the second cavity to complete preliminary filtration. The sample in the second cavity continues to pass through the partition screen into the third cavity to obtain a finely filtered pure sample.

[0006] Furthermore, the contact position of the filter screen with the arc surface is higher than its contact position with the inner wall, and the filter screen forms an angle X with the inner wall. The high position design of the filter screen near the arc surface allows the sample to form a natural flow direction from high to low at the bottom of the first cavity, reducing the residue of unfiltered sample at the bottom of the first cavity.

[0007] Furthermore, the inner bottle body includes a top screen embedded in the bottom of the second part.

[0008] Furthermore, the partition screen is installed at the bottom of the inner wall and abuts against the bottom of the outer bottle body during assembly.

[0009] Furthermore, the partition screen is installed on the outer bottle body and abuts against the bottom of the inner wall during assembly.

[0010] Furthermore, the bottom of the outer bottle is provided with a slope corresponding to the position of the filter screen, and the slope and the extension line of the bottom of the outer bottle form an angle Y.

[0011] Furthermore, the outer bottle body is provided with a foolproof notch at the position corresponding to the lower part of the second part.

[0012] Furthermore, the included angle X and the included angle Y are equal.

[0013] Secondly, this application provides a method for using a sample bottle, applied to the aforementioned sample bottle, comprising the following steps: S1. After inserting the inner bottle into the outer bottle through the slot, inject the sample to be filtered into the first chamber through the inner bottle. S2. After the sample liquid is injected into the first chamber through the inner bottle, tighten the top cap. S3. Under the influence of gravity, the sample liquid passes through the filter screen at the bottom of the inner bottle and enters the second chamber for initial filtration. S4. As the liquid level in the sample bottle gradually rises, the sample liquid in the second chamber slides down the slope towards the partition screen on the inner wall, entering the third chamber to complete the filtration.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects: First, the sample bottle forms multiple filtration chambers through the filter screen, partition screen, and top screen set in the inner bottle body, realizing multi-stage filtration of the sample. Under the action of gravity, the sample passes through each layer of screen in sequence, which improves filtration efficiency and sample purity.

[0015] Second, the sample bottle is equipped with a slot, which avoids errors during the assembly of the inner and outer bottles, thus improving assembly efficiency and accuracy.

[0016] Third, the sample bottle has an angled filter screen, which allows the sample liquid to flow along the inclined direction of the screen under the drive of gravity. This avoids the filtration blind zone caused by local accumulation of liquid on the screen surface, makes full use of the effective filtration area of ​​the screen, and reduces the retention of sample on the screen, ensuring that the sample liquid can smoothly enter the subsequent chamber. Fourth, the sample bottle is equipped with a top screen, which prevents sample liquid and impurities from splashing out during centrifugation and effectively blocks external dust, impurities and other contaminants from entering the bottle and contaminating the sample, further ensuring the purity of the sample. In addition, the mesh structure of the top screen can also provide appropriate buffering for the sample during centrifugation, reducing foam generated by the sample due to vigorous movement, and ensuring the stability of the sample state and the reliability of the results in subsequent testing or experimental operations. Attached Figure Description

[0017] Figure 1 This is a half-sectional view of the overall assembly of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the inner bottle body and the partition screen assembly of the present invention; Figure 3 This is a schematic diagram of the first part of the inner bottle body of the present invention; Figure 4 This is a cross-sectional view of the assembly of the outer bottle body and the partition screen of the present invention; Figure 5 This is a schematic diagram of the outer bottle structure of the present invention; Figure 6 This is a partial cross-sectional schematic diagram of the assembly of the inner and outer bottle bodies of the present invention; Figure 7 This is a schematic diagram of the assembly cross-sectional structure of the present invention.

[0018] In the diagram: 1. Top cap; 2. Inner bottle; 21. First part; 211. Curved surface; 212. Inner wall; 22. Second part; 23. Filter screen; 231. First cavity; 232. Second cavity; 233. Third cavity; 25. Top screen; 26. Partition screen; 3. Outer bottle; 31. Slope; 32. Anti-foolproof notch; 33. Slot. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1: Please see Figure 1-7In this embodiment, a sample bottle includes a top cover 1, a detachable inner bottle body 2, and an outer bottle body 3 assembled sequentially. The inner bottle body 2 includes a first part 21 and a second part 22 extending to the outer bottle body 3. A filter screen 23 is provided at the bottom of the first part 21. The first part 21 includes an inner wall 212 and an arc surface 211 that fits against the outer bottle body 3. A partition screen 26 is provided between the bottom of the inner wall 212 and the outer bottle body 3. A slot 33 is provided on the inner side of the outer bottle body 3. During assembly, the slot 33 fits against the lower side of the inner wall 212 and the second part 22. The space above the filter screen 23 in the first part 21 is a first cavity 231. The space from the filter screen 23 to the partition screen 26 forms a second cavity 232. The space from the partition screen 26 to the space below the second part 22 forms a third cavity 233.

[0021] It should be noted that the inner bottle body 2 includes a top screen 25 embedded in the bottom of the second part 22.

[0022] As a preferred technical solution in this embodiment: during use, first open the top cover 1 and slowly pour the sample liquid to be processed into the first cavity 231 of the inner bottle 2; under the action of gravity, the sample liquid passes through the filter screen 23 at the bottom of the first part 21 and enters the second cavity 232. The filter screen 23 can effectively intercept larger solid particle impurities in the sample; subsequently, the sample liquid in the second cavity 232 permeates through the partition screen 26 and enters the third cavity 233. The partition screen 26 can further filter out medium-sized particulate contaminants; after the sample liquid has completely entered the third cavity 233, tighten the top cover 1. At this time, the solution in the sample bottle can be subjected to subsequent centrifugal shaking treatment. The top screen 25 can prevent external dust, impurities and other contaminants from entering the bottle and contaminating the sample, further ensuring the purity of the sample.

[0023] Example 2: Please see Figure 4-6 In this embodiment: the contact position of the filter screen 23 with the arc surface 211 is higher than the contact position with the inner wall 212, and the filter screen 23 and the inner wall 212 form an angle X; the partition screen 26 is set at the bottom of the inner wall 212 and abuts against the bottom of the outer bottle 3 during assembly, and the partition screen 26 is set on the outer bottle 3 and abuts against the bottom of the inner wall 212 during assembly.

[0024] As a preferred technical solution in this embodiment: During the filtration process, the partition screen 26 and the filter screen 23 work together. Due to the inclined design of the filter screen 23 forming an angle X with the inner wall 212, the larger solid particles intercepted can naturally slide down along the arc surface 211 to the edge area of ​​the filter screen, reducing the risk of screen blockage caused by particle accumulation. The partition screen 26, by abutting against the bottom of the inner wall 212 or the bottom of the outer bottle 3, ensures that the sample liquid in the second cavity 232 must permeate the partition screen 26 before entering the third cavity 233, intercepting medium-sized particulate contaminants for secondary filtration, avoiding the mixing or backflow of impurities of different particle sizes, and providing a purer and more uniform sample solution basis for subsequent sample processing. In addition, the bottom of the partition screen 26 abuts against the outer bottle 3 to prevent the screen from shifting due to liquid impact, improving the accuracy of sample pretreatment.

[0025] Example 3: Please see Figure 2-3 The position where the filter screen 23 is attached to the curved surface 211 is higher than the position where it is attached to the inner wall 212, and the filter screen 23 and the inner wall 212 form an angle X. The bottom of the outer bottle body 3 is provided with a slope 31 corresponding to the position of the filter screen 23, and the slope 31 and the bottom of the outer bottle body 3 form an angle Y, and the angles X and Y are equal.

[0026] As a preferred technical solution in this embodiment, the design of having equal angles X and Y ensures that the tilt direction of the filter screen 23 matches the tilt direction of the bottom slope 31 of the outer bottle 3. After the sample liquid passes through the filter screen 23, it can flow naturally along the guide of the slope 31, reducing the stagnation of liquid at the bottom of the second cavity 232. At the same time, it avoids the accumulation of impurities intercepted by the filter screen 23 in the slope 31 area, further improving the smoothness of the filtration process and the efficiency of impurity separation.

[0027] The working principle of the above embodiments is as follows: 1. During use, first open the top cap 1 and slowly pour the sample liquid to be processed into the first chamber 231 of the inner bottle 2. Under the action of gravity, the sample liquid passes through the filter screen 23 at the bottom of the first part 21 and enters the second chamber 232. The filter screen 23 can effectively intercept larger solid particles in the sample. Subsequently, the sample liquid in the second chamber 232 permeates through the partition screen 26 and enters the third chamber 233. The partition screen 26 can further filter out medium-sized particulate contaminants. After the sample liquid has completely entered the third chamber 233, tighten the top cap 1. At this time, the solution in the sample bottle can be subjected to subsequent centrifugation and shaking treatment. The top screen 25 can prevent external dust, impurities and other contaminants from entering the bottle and contaminating the sample, further ensuring the purity of the sample.

[0028] II. During the filtration process, the partition screen 26 and the filter screen 23 work together. Due to the inclined design of the filter screen 23, which forms an angle X with the inner wall 212, larger solid particles that are intercepted can naturally slide down along the arc surface 211 to the edge area of ​​the screen, reducing the risk of screen blockage caused by particle accumulation. The partition screen 26, by abutting against the bottom of the inner wall 212 or the bottom of the outer bottle 3, ensures that the sample liquid in the second chamber 232 must permeate the partition screen 26 before entering the third chamber 233, intercepting medium-sized particulate contaminants and preventing impurities of different particle sizes from mixing or flowing back. This provides a purer and more uniform sample solution basis for subsequent sample processing. In addition, the bottom of the partition screen 26 abuts against the outer bottle 3, preventing the screen from shifting due to liquid impact and improving the accuracy of sample pretreatment.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sample bottle, comprising a top cap (1), a detachable inner bottle body (2), and an outer bottle body (3) assembled sequentially, characterized in that: The inner bottle (2) includes a first part (21) and a second part (22) extending to the outer bottle (3). A filter screen (23) is provided at the bottom of the first part (21). The first part (21) includes an inner wall (212) and an arc surface (211) that fits against the outer bottle (3). A partition screen (26) is provided between the bottom of the inner wall (212) and the outer bottle (3). A slot (33) is provided on the inner side of the outer bottle (3). During assembly, the slot (33) fits against the lower side of the inner wall (212) and the second part (22). The space above the filter screen (23) in the first part (21) is the first cavity (231). The space from the filter screen (23) to the partition screen (26) forms the second cavity (232). The space from the partition screen (26) to the space below the second part (22) forms the third cavity (233).

2. A sample bottle according to claim 1, characterized in that: The filter screen (23) is positioned closer to the arc surface (211) than it is positioned closer to the inner wall (212), and the filter screen (23) forms an angle X with the inner wall (212).

3. A sample bottle according to claim 1, characterized in that: The inner bottle (2) includes a top screen (25) embedded in the bottom of the second part (22).

4. A sample bottle according to claim 1, characterized in that: The partition screen (26) is installed at the bottom of the inner wall (212) and abuts against the bottom of the outer bottle body (3) during assembly.

5. A sample bottle according to claim 1, characterized in that: The partition screen (26) is set on the outer bottle body (3) and abuts against the bottom of the inner wall (212) during assembly.

6. A sample bottle according to claim 1, characterized in that: The bottom of the outer bottle (3) is provided with a ramp (31) corresponding to the position of the filter screen (23), and the ramp (31) and the extension line of the bottom of the outer bottle (3) form an angle Y.

7. A sample bottle according to claim 1, characterized in that: The outer bottle body (3) is provided with a foolproof notch (32) at the position below the second part (22).

8. A sample bottle according to claims 2 and 5, characterized in that: The included angle X and the included angle Y are equal.

9. A method of using a sample bottle based on any one of claims 1-8, characterized in that, Includes the following steps: S1: After inserting the inner bottle (2) into the outer bottle (3) through the slot (33), inject the sample to be filtered from the inner bottle (2) into the first cavity (231). S2: After the sample liquid to be filtered is injected into the first cavity (231) from the inner bottle (2), tighten the top cap (1). S3: The sample liquid passes through the filter screen (23) at the bottom of the inner bottle (2) under the action of gravity and enters the second chamber (232) for filtration. S4: When the liquid level in the sample bottle gradually rises, the sample liquid in the second chamber (232) slides down the slope (31) towards the partition screen (26) on the inner wall (212) and enters the third chamber (233) to complete the filtration.

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