Filtration adsorber and preservation liquid bottle

Abstract

The utility model provides a filtration adsorber and a preservation liquid bottle, and relates to the technical field of medical sample collection, the filtration adsorber comprises a filtration adsorption tube and an adsorption body; an annular grid is arranged in the filtering and adsorbing pipe, and a through hole is formed in the grid and used for allowing detected liquid flowing in from an upper end inlet of the filtering and adsorbing pipe to pass through; a central column is mounted in the filtering adsorption pipe, the top of the central column is connected with the inner ring of the grating, and a liquid flow channel is formed between the filtering adsorption pipe and the central column; the adsorption body is filled in the liquid flow channel and is used for adsorbing and capturing cells in the detected liquid when the detected liquid flows through the liquid flow channel. According to the filtering adsorber and the preservation liquid bottle, the filtering speed is high, the adsorption efficiency is high, liquid leakage is not prone to occurring, blocking is not prone to occurring, and the adsorption body is convenient to take out; and after the adsorption body is taken out, the cells on the adsorption body can be washed and separated more quickly, so that the separation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical sample collection, in particular to a filtering adsorber and a preservation liquid bottle. Background Art

[0002] Urine examination is one of the most common detection methods in clinical medicine. There are many methods for obtaining the exfoliated cells contained in urine, such as sedimentation method, centrifugation method, filtration method, etc. The defect of these methods is that they can only be applied to body fluid specimens with small sample volume and high cell content in the sample, but for body fluids such as urine with large volume but small cell content, if centrifugation is used, due to the large volume of body fluids such as urine, multiple centrifugation is required. In the process of centrifugation, multiple centrifuge tubes need to be used, which will lose a large amount of cells in the urine and affect the subsequent test results. If the sedimentation method is used, it takes a certain amount of time, which will cause cell degeneration and affect the accuracy of the test results. The filtration method requires the use of a filter with a large filtration area to avoid the blockage of the filtration channel. Due to the large volume, this will make the cell storage and transportation very inconvenient and the later test process takes up a large space. Therefore, there is currently a lack of an effective and convenient method to carry out rapid and simple processing, obtain the exfoliated cells in the urine, and recycle and preserve them for subsequent medical examinations by the inspection department.

[0003] Currently, filter adsorbers are mostly used to filter and adsorb urine, and then collect cells in the urine for sampling and analysis. However, existing filter adsorbers have problems such as easy leakage, easy clogging, and difficulty in removing the urine adsorbent. Utility Model Content

[0004] The purpose of the utility model is to provide a filter adsorber and a storage liquid bottle to solve at least one of the above-mentioned technical problems existing in the prior art.

[0005] In the first aspect, in order to solve the above technical problems, the utility model provides a filter adsorber, comprising: a filter adsorption tube and an adsorption body;

[0006] An annular grid is provided inside the filter adsorption tube, and a through hole is provided on the grid for the liquid to be detected flowing in from the upper inlet of the filter adsorption tube to pass through;

[0007] The liquid to be detected may be body fluids such as urine, sweat or blood, or other liquids carrying target cells or substances to be detected.

[0008] A central column is installed in the filter adsorption tube, the top of the central column is connected to the inner circle of the grid, and a liquid flow channel is formed between the filter adsorption tube and the central column;

[0009] The adsorbent is filled in the liquid flow channel, and is used to adsorb and capture cells in the detected liquid when the detected liquid flows through the liquid flow channel.

[0010] The present application arranges an annular grid in the filter adsorption tube, installs a central column in the inner circle of the grid, forms an annular liquid flow channel between the filter adsorption tube and the central column, and arranges an annular adsorber in the liquid flow channel. The adsorber is compressed in the liquid flow channel, and the pores of the adsorber are reduced, which can better adsorb the cells in the detected liquid, thereby greatly improving the filtration efficiency and preventing leakage. After the adsorber is taken out, the adsorber expands and the pore size of the adsorber is restored, so that the cells on the adsorber can be washed and separated more quickly, thereby improving the separation efficiency.

[0011] Furthermore, the filter adsorber further comprises a connecting frame, the connecting frame is detachably connected to the lower end outlet of the filter adsorption tube, and the connecting frame is provided with a through hole for the detected liquid flowing out of the liquid flow channel to pass through;

[0012] The adsorbent is connected to the connecting frame and is used to pull the adsorbent out of the liquid flow channel through the connecting frame.

[0013] Preferably, the absorbent body is connected to the connecting frame by means of snap-fitting, bonding or welding.

[0014] Among them, the clamping methods can be specifically divided into anchoring type, bayonet type, clamp type and plug-in type.

[0015] Furthermore, a plurality of cross bars are arranged radially on the connecting frame, and support columns are arranged at the ends of the cross bars. The support columns are inserted into the liquid flow channel and connected to the adsorbent, so as to squeeze the adsorbent into the liquid flow channel and take the adsorbent out when the connecting frame is removed;

[0016] The support column abuts against the central column, and the through hole is formed between adjacent cross bars.

[0017] Furthermore, the grille is made of a plurality of grille bars arranged in a radial direction, and the through holes are formed between adjacent grille bars.

[0018] Furthermore, a limiting structure is provided in the filter adsorption tube, and the limiting structure is provided below the grid to limit the position of the adsorbent in the liquid flow channel, so that a cavity is left between the adsorbent and the grid to prevent the liquid flow channel from being blocked.

[0019] Preferably, the limiting structure may be columnar or spherical.

[0020] Furthermore, a cone structure is provided at the top of the central column, so as to allow the detected liquid to flow quickly to the surrounding through holes to prevent liquid accumulation.

[0021] Furthermore, the adsorbent is a filter adsorbent made of microporous adsorbent material.

[0022] More preferably, the absorbent is a filter absorbent made of a flexible microporous absorbent material, wherein the flexible microporous absorbent material can be sponge, bubble cotton, non-woven fabric, cotton and linen, filter paper or a filter made of a protein material.

[0023] Of course, the microporous adsorption material can also be a hard microporous adsorption material.

[0024] Furthermore, the adsorbent is a polymer material that has been subjected to ion exchange and thus has a positive or negative charge.

[0025] For example, sponge, bubble cotton, non-woven fabric, cotton and linen, filter paper or filter elements made of protein materials can be soaked in ion exchangers to form the above-mentioned adsorbents with positive or negative charges. Ion exchangers can be inorganic or organic materials, such as zeolite, sulfonated coal and ion exchange resins.

[0026] Furthermore, the adsorbent is formed by stacking a number of sheet bodies, and the sheet bodies are connected in sequence by coating adhesive on the outer sides of the sheet bodies at the overlapped positions, so as to avoid clogging of the adsorbent due to coating adhesive at the overlapped positions of adjacent sheet bodies.

[0027] The adsorbent is composed of a plurality of the sheet-like bodies, and after being drawn out, it is convenient to quickly flush out the cells on the sheet-like bodies for disease detection.

[0028] Furthermore, a plurality of the sheet-like bodies are stacked in sequence along the height direction, and the sheet-like bodies close to the connecting frame are connected to the connecting frame, and all the sheet-like bodies can be taken out at the same time by using the connecting frame.

[0029] Furthermore, a plurality of positioning pins are radially arranged on the outer side of the connecting frame for fixing the connecting frame in the preservation liquid bottle.

[0030] Furthermore, the connecting bracket is connected to the lower end outlet of the filter adsorption tube by means of threads or snap-fitting.

[0031] In a second aspect, the utility model also provides a preservation liquid bottle, comprising the filter adsorber as described above, and further comprising: a bottle body and a bottle cap;

[0032] The bottle body is used to store the connecting frame and the adsorbent;

[0033] A plurality of wedge-shaped structures are arranged in the bottle body, and grooves are arranged between adjacent wedge-shaped structures for fixing the positioning pin of the connecting seat frame in the bottle body;

[0034] The bottle cap is detachably mounted on the bottle mouth of the bottle body, and is used to squeeze the connecting bracket and the adsorbent into the bottle body;

[0035] When in use, the adsorbent is pulled out of the liquid flow channel through the connecting frame, and placed upside down in the bottle body, the connecting frame is squeezed by the bottle cap to drive the connecting frame and the adsorbent to rotate, and the connecting frame and the adsorbent are pressed into the bottle body, and the locating pin of the connecting frame is fixed by the wedge-shaped structure and the groove, and then the connecting frame and the adsorbent are fixed in the bottle body to prevent the connecting frame and the adsorbent from shaking during centrifugation.

[0036] Furthermore, a sampling hole is provided on the bottle cap, and the sampling hole is usually sealed by plastic paper. When sampling, a sampling needle penetrates through the sampling hole to perform puncture sampling.

[0037] By adopting the above technical solution, the utility model has the following beneficial effects:

[0038] The utility model provides a filtering adsorber and a preservation liquid bottle, which have fast filtering speed, high adsorption efficiency, are not prone to leakage and clogging, and the adsorbent is easy to take out; after the adsorbent is taken out, the cells on the adsorbent can be washed and separated more quickly, thereby improving the separation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0040] Figure 1 A schematic diagram of the three-dimensional structure of the filter adsorber provided in an embodiment of the utility model;

[0041] Figure 2 for Figure 1 A cross-sectional view of the filter adsorber shown;

[0042] Figure 3 for Figure 2 A partial enlarged view of point A shown;

[0043] Figure 4 for Figure 1A top view of the filter adsorber shown (without the adsorber);

[0044] Figure 5 for Figure 1 A bottom view of the filter adsorber shown (without the adsorber);

[0045] Figure 6 for Figure 1 A cross-sectional view of a filter-adsorbent tube of the filter-adsorbent shown;

[0046] Figure 7 for Figure 1 A schematic diagram of the three-dimensional structure of the connection frame of the filter adsorber shown;

[0047] Figure 8 for Figure 7 A top view of the connecting mount shown;

[0048] Fig. 9 A schematic diagram of the three-dimensional structure of a filter adsorber provided in another embodiment of the utility model;

[0049] Fig.10 for Fig. 9 The three-dimensional structure diagram of the filter adsorber shown in FIG.

[0050] Fig.11 for Fig. 9 A cross-sectional view of a filter-adsorbent tube of the filter-adsorbent shown;

[0051] Fig.12 A schematic diagram of the three-dimensional structure of a storage liquid bottle provided in an embodiment of the utility model;

[0052] Fig.13 for Fig.11 A cross-sectional view of the preservation solution bottle shown;

[0053] Fig.14 for Fig.11 The three-dimensional structural schematic diagram of the bottle body of the preservation solution bottle is shown.

[0054] Reference numerals:

[0055] 1-filter adsorption tube; 11-through hole; 12-grid bar; 13-liquid flow channel; 141-limiting column; 142-limiting ball; 2-center column; 21-conical structure; 3-adsorbent body; 31-first sheet body; 32-second sheet body; 33-third sheet body; 4-connecting frame; 41-through hole; 42-cross bar; 43-support column; 44-locating pin; 45-buckle; 5-liquid bag; 51-connecting tube; 6-bottle body; 61-wedge structure; 62-groove; 7-bottle cap; 71-sampling hole. DETAILED DESCRIPTION

[0056] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0057] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0058] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] The present invention will be further explained below in conjunction with specific implementation methods.

[0060] It should also be noted that the following specific embodiments or specific implementations are a series of optimized settings listed in the present invention to further explain the specific contents of the utility model, and these settings can be used in combination or in association with each other.

[0061] Example 1

[0062] like Figure 1-8 As shown, a filter adsorber provided in this embodiment includes: a filter adsorption tube 1 and an adsorber 3; an annular grid is arranged inside the filter adsorption tube 1, and a through hole 11 is arranged on the grid for the detection liquid flowing into the upper end inlet of the filter adsorption tube 1 to pass through; wherein the detection liquid can be body fluids such as urine, sweat or blood, or other liquids carrying target cells and detected substances.

[0063] A central column 2 is installed in the filter adsorption tube 1, and the top of the central column 2 is connected to the inner circle of the grid by means of threads, and a liquid flow channel 13 is formed between the filter adsorption tube 1 and the central column 2; the adsorbent 3 is filled in the liquid flow channel 13, and is used to adsorb and capture cells in the detected liquid when the detected liquid flows through the liquid flow channel 13.

[0064] The present application arranges an annular grid in the filter adsorption tube 1, installs a central column 2 on the inner circle of the grid, forms an annular liquid flow channel 13 between the filter adsorption tube 1 and the central column 2, and arranges an annular adsorber 3 in the liquid flow channel 13. The adsorber 3 is compressed in the liquid flow channel 13, and the pores of the adsorber 3 are reduced, which can better adsorb the cells in the detected liquid, thereby greatly improving the filtration efficiency and preventing leakage. After the adsorber 3 is taken out, the adsorber 3 expands and the pore size of the adsorber 3 is restored, so that the cells on the adsorber 3 can be washed and separated more quickly, thereby improving the separation efficiency.

[0065] On the basis of the above technical solution, it is further preferred that the filter adsorber also includes a connecting bracket 4, which is detachably connected to the lower end outlet of the filter adsorbent tube 1, and a through hole 41 is provided on the connecting bracket 4 for the detected liquid flowing out of the liquid flow channel 13 to pass through; the adsorber 3 is connected to the connecting bracket 4 for pulling the adsorber 3 out of the liquid flow channel 13 through the connecting bracket 4.

[0066] More preferably, the absorbent body 3 is connected to the connecting frame 4 by means of snap connection, bonding or welding, etc. The snap connection method can be specifically divided into anchoring type, bayonet type, clamp type and plug-in type, etc.

[0067] Reference Figure 2 , Figure 5 , Figure 7 and Figure 8 As shown, a plurality of crossbars 42 are arranged at equal intervals along the radial direction on the connecting frame 4, and a support column 43 is arranged at the end of the crossbar 42. The support column 43 is inserted into the liquid flow channel 13 and connected to the adsorbent 3, and is used to squeeze the adsorbent 3 into the liquid flow channel 13, and to bring the adsorbent 3 out when the connecting frame 4 is removed; the support column 43 abuts against the central column 2, and the through hole 41 is formed between adjacent crossbars 42. In this embodiment, the side of the support column 43 that contacts the central column 2 is semi-cylindrical, which is used to increase the friction between the support column 43 and the central column 2, so that the support column 43 and the central column 2 abut against each other.

[0068] Reference Figure 4As shown, more preferably, the grille is made of a plurality of grille bars 12 arranged at equal intervals along the radial direction, and the through holes 11 are formed between adjacent grille bars 12 .

[0069] Reference Figure 2 , Figure 6 As shown, further, a limiting structure is provided in the filter adsorption tube 1, and the limiting structure is provided below the grid to limit the position of the adsorbent 3 in the liquid flow channel 13, so that a cavity is left between the adsorbent 3 and the grid to prevent the liquid flow channel 13 from being blocked. In this embodiment, the limiting structure is a columnar limiting column 141, and a plurality of the limiting columns 141 are vertically provided on the inner wall of the filter adsorption tube 1 and connected to the bottom of the grid bar 12.

[0070] Reference Figure 2 As shown, more preferably, a cone structure 21 is provided at the top of the central column 2 to allow the detected liquid to flow quickly to the surrounding through holes 11 to prevent liquid accumulation.

[0071] More preferably, vertical stripes are provided at the bottom of the central column 2 to increase the roughness of the bottom surface of the central column 2 to facilitate installation and removal of the central column 2 .

[0072] Further, the absorbent body 3 is a filter absorbent made of microporous absorbent material. More preferably, the absorbent body 3 is a filter absorbent made of flexible microporous absorbent material. Of course, the microporous absorbent material can also be a hard microporous absorbent material.

[0073] More preferably, the adsorbent 3 is a polymer material having positive or negative charge after ion exchange.

[0074] Furthermore, the adsorbent 3 is formed by stacking a plurality of sheets, and the plurality of sheets are connected in sequence by coating an adhesive on the outer sides of the sheets at the overlapped positions, so as to avoid coating the adhesive at the overlapped positions of adjacent sheets, which may cause clogging of the adsorbent 3. The adsorbent 3 is composed of a plurality of sheets, and after being drawn out, it is convenient to quickly flush out the cells on the sheets for disease detection.

[0075] Reference Figure 2 As shown, more preferably, the absorbent body 3 is formed by stacking three kinds of sheet bodies, namely a first sheet body 31, a second sheet body 32 and a third sheet body 33; the first sheet body 31, the second sheet body 32 and the third sheet body 33 are stacked and connected in sequence along the height direction;

[0076] Among them, the first sheet body 31 is arranged between the limiting structure and the second sheet body 32, and the top is against the limiting structure. The pore size of the first sheet body 31 is relatively large, and it is used to adsorb cells with larger particle sizes in the detected liquid, perform disease detection, and prevent the second sheet body 32 from being blocked; or to perform preliminary filtration on the detected liquid to remove impurities in the detected liquid; wherein, impurities are usually substances with larger particle sizes that affect the accuracy of the test results. After the detected liquid is initially filtered, the accuracy of the test is improved and the probability of impurities clogging the adsorbent 3 can be reduced.

[0077] The second sheet 32 ​​is disposed between the first sheet 31 and the third sheet 33 . The aperture size of the second sheet 32 ​​is smaller than that of the first sheet 31 , and is used to absorb cells with smaller particle sizes in the detected liquid for disease detection.

[0078] The third sheet-like body 33 is arranged between the second sheet-like body 32 and the connecting seat frame 4. The aperture size of the third sheet-like body 33 is the same as the aperture size of the first sheet-like body 31, and is used for quickly discharging the detected liquid from the liquid flow channel 13; the third sheet-like body 33 is connected to the connecting seat frame 4, and all the sheet-like bodies can be taken out at the same time by using the connecting seat frame 4.

[0079] More preferably, the three types of sheet-like bodies can be one or more.

[0080] Furthermore, a plurality of positioning pins 44 are arranged at equal intervals along the radial direction on the outer side of the connecting frame 4 for fixing the connecting frame 4 in the preservation liquid bottle.

[0081] Reference Figure 3 As shown, in this embodiment, a buckle 45 is provided on the inner side of the positioning pin 44, and the connecting bracket 4 is connected to the lower end outlet of the filter adsorption tube 1 by snap-fitting.

[0082] The present application provides a filter adsorber with fast filtration speed, high adsorption efficiency, no leakage, no clogging, and the adsorber is easy to remove; after the adsorber is removed, the cells on the adsorber can be washed and separated more quickly, thereby improving the separation efficiency.

[0083] Example 2

[0084] This embodiment is basically the same as Embodiment 1, except that:

[0085] like Figure 9-11 As shown, the limiting structure of the filter adsorber provided in this embodiment is a spherical limiting ball 142, and a plurality of the limiting balls 142 are arranged on the inner wall of the filter adsorber 1, below the grille.

[0086] Reference Fig. 9 , Fig.10 As shown, more preferably, the filter adsorber also includes a liquid bag 5, which is used to collect and store the detected liquid; the lower end outlet of the liquid bag 5 is connected to the upper end inlet of the filter adsorption tube 1 through a connecting tube 51, and the length of the connecting tube 51 is adjustable.

[0087] Example 3

[0088] like Figure 12-14 As shown, a storage liquid bottle provided in this embodiment includes the filter adsorber as described above, and further includes: a bottle body 6 and a bottle cap 7; the bottle body 6 is used to store the connecting frame 4 and the adsorber 3; a plurality of wedge-shaped structures 61 are arranged in the bottle body 6, and grooves 62 are arranged between adjacent wedge-shaped structures 61, which are used to fix the positioning pins 44 of the connecting frame 4 in the bottle body 6; in this embodiment, the number of the wedge-shaped structures 61 is the same as the number of the positioning pins 44; the bottle cap 7 is detachably mounted on the bottle mouth of the bottle body 6 by means of threads, and is used to squeeze the connecting frame 4 and the adsorber 3 into the bottle body 6;

[0089] When in use, the adsorbent 3 is pulled out of the liquid flow channel through the connecting frame 4, and placed upside down in the bottle body 6, and the connecting frame 4 is squeezed by the bottle cap 7 to drive the connecting frame 4 and the adsorbent 3 to rotate, and the connecting frame 4 and the adsorbent 3 are pressed into the bottle body 6, and the positioning pin 44 of the connecting frame 4 is fixed by the wedge-shaped structure 61 and the groove 62, and then the connecting frame 4 and the adsorbent 3 are fixed in the bottle body 6 to prevent the connecting frame 4 and the adsorbent 3 from shaking during centrifugation.

[0090] Reference Fig.12 and Fig.13 As shown, more preferably, a sampling hole 71 is provided on the bottle cap 7, and the sampling hole 71 is usually sealed by plastic paper. When sampling, the sampling needle penetrates through the sampling hole 71 to perform puncture sampling.

[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A filter adsorber, characterized in that: include: Filter adsorbent tubes and adsorbent bodies; An annular grid is provided inside the filter adsorption tube, and a through hole is provided on the grid for the liquid to be detected flowing in from the upper inlet of the filter adsorption tube to pass through; A central column is installed in the filter adsorption tube, the top of the central column is connected to the inner circle of the grid, and a liquid flow channel is formed between the filter adsorption tube and the central column; The adsorbent is filled in the liquid flow channel, the adsorbent is compressed in the liquid flow channel, the pores of the adsorbent are reduced, and when the detected liquid flows through the liquid flow channel, the adsorbent is used to adsorb and capture cells in the detected liquid.

2. The filter adsorber according to claim 1, characterized in that The filter adsorber further comprises a connecting frame, which is detachably connected to the lower end outlet of the filter adsorption tube, and the connecting frame is provided with a through hole for the detected liquid flowing out of the liquid flow channel to pass through; The adsorbent is connected to the connecting frame and is used to pull the adsorbent out of the liquid flow channel through the connecting frame.

3. The filter adsorber according to claim 2, characterized in that The connecting frame is provided with a plurality of cross bars along the radial direction, and the ends of the cross bars are provided with support columns, which are inserted into the liquid flow channel and connected to the adsorbent, and are used to squeeze the adsorbent into the liquid flow channel and take the adsorbent out when the connecting frame is removed; The support column abuts against the central column, and the through hole is formed between adjacent cross bars.

4. The filter adsorber according to claim 1, characterized in that The grid is composed of a plurality of grid bars arranged in a radial direction, and the through holes are formed between adjacent grid bars.

5. The filter adsorber according to claim 1, characterized in that A limiting structure is arranged in the filtering adsorption tube, and the limiting structure is arranged below the grid to limit the position of the adsorbent in the liquid flow channel.

6. The filter adsorber according to claim 1, characterized in that The top of the central column is provided with a cone structure, which is used for the detected liquid to flow quickly to the through holes around it to prevent liquid accumulation.

7. The filter adsorber according to claim 1, characterized in that The adsorbent is formed by stacking a plurality of sheet-like bodies, and the plurality of sheet-like bodies are connected in sequence by coating adhesive on the outer sides of the sheet-like bodies at the overlapping positions.

8. The filter adsorber according to claim 7, characterized in that The adsorbent is formed by stacking three types of sheet bodies, namely a first sheet body, a second sheet body and a third sheet body; The first sheet, the second sheet and the third sheet are stacked and connected in sequence along the height direction; The first sheet has a large pore size and is used to absorb cells with large particle sizes in the detected liquid; The pore size of the second sheet is smaller than that of the first sheet, and is used to absorb cells with small particle size in the detected liquid; The aperture size of the third sheet-shaped body is the same as the aperture size of the first sheet-shaped body, and is used for rapidly discharging the detected liquid from the liquid flow channel.

9. The filter adsorber according to claim 2, characterized in that A plurality of positioning pins are arranged on the outer side of the connecting frame for fixing the connecting frame in the preservation liquid bottle.

10. A storage liquid bottle, comprising the filter adsorber according to any one of claims 1 to 9, characterized in that: Also includes: Bottle body and bottle cap; The bottle body is used to store the connecting frame and the adsorbent; A plurality of wedge-shaped structures are arranged in the bottle body, and grooves are arranged between adjacent wedge-shaped structures for fixing the positioning pin of the connecting seat frame in the bottle body; The bottle cap is detachably mounted on the bottle mouth of the bottle body, and is used to squeeze the connecting bracket and the adsorbent into the bottle body; When in use, the adsorbent is pulled out of the liquid flow channel through the connecting frame, and placed upside down in the bottle body, the connecting frame is squeezed by the bottle cap to drive the connecting frame and the adsorbent to rotate, and the connecting frame and the adsorbent are pressed into the bottle body, and the locating pin of the connecting frame is fixed by the wedge-shaped structure and the groove, thereby fixing the connecting frame and the adsorbent in the bottle body.

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