A biopsy vial and apparatus and method of use thereof

Abstract

The present application relates to a kind of biopsy bottle and its using device and using method, belong to medical instrument technical field.The biopsy bottle, including biopsy bottle body, end cap and filter plate, the upper end outside of the biopsy bottle body is equipped with upper outer thread, the lower end outside of the biopsy bottle body is equipped with lower outer thread, the end cap is equipped with internal thread in correspondence with upper outer thread and lower outer thread, the middle part of the end cap is equipped with specimen fixative cavity, the specimen fixative cavity is equipped with aluminum foil for sealing specimen fixative.The present application designs a kind of biopsy bottle and its using device and using method, greatly simplifies the extraction of biopsy specimen, the process of packaging, sterile operation in whole time, avoids the possibility of specimen being contaminated.At the same time, the convenient and clear marking method of biopsy bottle avoids the possible confusion of the part and the number of material taking of operator, causes the misjudgment of final pathological analysis and treatment, thereby causing medical accident.

Description

TECHNICAL FIELD

[0001] The present application relates to a biopsy bottle and its using device and method, belonging to the technical field of medical instruments. BACKGROUND

[0002] In the field of clinical medicine, biopsy, short for biopsy, refers to the extraction of living tissue from the patient's body for pathological examination. It is the most important step in diagnostic pathology and is often used as the final diagnosis in clinical practice. To prevent pathological tissue from deteriorating before pathological analysis, the specimen needs to be placed in a specimen fixative (10% formalin solution) for preservation.

[0003] The biopsy material in the prior art includes biopsy forceps, filter paper, formalin solution, and biopsy bottles. The small piece of filter paper is cut from a whole piece of filter paper in advance. When using, first clamp a piece of filter paper with hemostatic forceps, then extract the living tissue with biopsy forceps, operate the biopsy forceps handle, clamp the filter paper with the biopsy forceps to make the living tissue adhere to the filter paper, then open the biopsy bottle cap, put the filter paper into the biopsy bottle, use a syringe to suck formalin solution into the biopsy bottle, and finally cap the bottle for preservation. If multiple living tissues from different parts of the patient need to be extracted, the above steps are repeated multiple times, and the filter paper with different parts of the living tissue adhered is placed in multiple corresponding biopsy bottles for preservation, and a marker pen is used to mark the multiple biopsy bottles to avoid confusion.

[0004] In the sampling method of the prior art, the small piece of filter paper is cut from a whole piece of filter paper, and the whole piece of filter paper is exposed for a long time, making it difficult to achieve aseptic operation. If multiple living tissues from different parts of the patient need to be extracted, the filter paper needs to be clamped multiple times, the living tissue is adhered to the filter paper, and the filter paper is placed in the biopsy bottle. This operation is very tedious, and the longer the filter paper is exposed to the external environment, the greater the possibility of contamination. After all the living tissues are extracted and placed in the biopsy bottle, a syringe is used to suck formalin solution and then inject it into the biopsy bottle. Formalin solution is volatile, has a pungent odor, and is harmful to the human body. In addition, the small piece of filter paper and the biopsy tissue are suspended in the formalin solution, sometimes tightly adhering to the inner wall of the biopsy bottle without being completely soaked, so the biopsy bottle needs to be shaken until the filter paper and the biopsy tissue are completely soaked.

[0005] In the existing sampling method, in order to distinguish the biopsy bottles of different parts of the biopsy tissue, a marker pen is used to mark multiple biopsy bottles, and the operator is wearing sterile gloves at this time. Using a marker pen to mark not only the steps are tedious, but also it violates the principle of asepsis. In addition, multiple unmarked specimen bottles on the examination table can also cause the operator to confuse the parts and the number of samples, leading to misjudgment of the final pathological analysis and treatment, thereby causing medical accidents. SUMMARY

[0006] In order to overcome the defects in the prior art, the present application solves its technical problems by adopting the technical scheme of a biopsy bottle comprising a biopsy bottle body, an end cover and a filter plate, an upper outer thread is arranged on the upper end of the biopsy bottle body, a lower outer thread is arranged on the lower end of the biopsy bottle body, an inner thread is arranged on the end cover corresponding to the upper outer thread and the lower outer thread, a specimen fixing solution placing cavity is arranged in the middle of the end cover, an aluminum foil for sealing the specimen fixing solution is arranged on the specimen fixing solution placing cavity, a plurality of filter holes are arranged on the filter plate, a filter plate outer edge is arranged around the filter plate, a filter paper fixing column is fixed to the upper middle of the filter plate, a plurality of filter papers are clamped in the filter paper fixing column, a cutter corresponding to the aluminum foil is arranged at the top end of the filter paper fixing column, a support column is fixed to the lower middle of the filter plate, limit protrusions are arranged on both sides of the support column, a support column placing groove corresponding to the support column is arranged on the bottom plate of the biopsy bottle body, and a plurality of baffles are arranged on the inner side of the support column placing groove corresponding to the limit protrusions.

[0007] Preferably, the top end of the end cover is provided with an end cover label, and the biopsy bottle body is provided with a bottle body label.

[0008] Preferably, the number of filter papers is four, and the filter papers are uniformly distributed around the filter paper fixing column.

[0009] Preferably, the specimen fixing solution in the specimen fixing solution placing cavity is formalin solution.

[0010] The use device of the biopsy bottle comprises a device base and a device upper cover, the device base and the device upper cover are movably connected together through a hinge, one side of the device base is provided with a plurality of biopsy bottle placing grooves, a plurality of seals are arranged on the device base, and an operation instruction is attached to the device upper cover.

[0011] Preferably, the marks on the seals are different from each other.

[0012] Preferably, the biopsy bottle placing grooves are provided with locking beads.

[0013] The use method of the biopsy bottle and the use device thereof is characterized by the following steps:

[0014] (1) The sterile package is opened, and the biopsy bottle is taken out, at this time, the inner thread of the end cover is screwed on the lower outer thread arranged on the lower end of the biopsy bottle body, the filter plate is placed in the biopsy bottle body, and the support column is placed in the support column placing groove, so that the limit protrusions are clamped between the baffles;

[0015] (2) The biopsy bottle body with the end cover screwed on the lower end is placed in the biopsy bottle placing groove arranged in the device base, the end cover label faces downward, and the locking beads lock the biopsy bottle body;

[0016] (3) Next, the sampling personnel will attach the biopsy tissue extracted by the biopsy forceps to the filter paper. The tissue attached to the filter paper in each biopsy bottle comes from the same patient.

[0017] (4) After the sample is placed on the filter paper, the sampling personnel take out the biopsy bottle body from the biopsy bottle placement slot, press the end cap at the bottom of the biopsy bottle body onto the stamp on the device base as required by the characters to be marked, so that the stamp is affixed to the end cap label to identify the biopsy bottle body.

[0018] (5) Next, the sampling personnel unscrew the end cap from the bottom of the biopsy bottle body, and then screw the end cap onto the upper external thread at the top of the biopsy bottle body. During the screwing process, the limiting protrusion is locked between the baffles to prevent the filter paper fixing column from rotating. At the same time, the cutter at the top of the filter paper fixing column will cut the aluminum foil used to seal the specimen fixing solution in the specimen fixing solution placement cavity, and the specimen fixing solution in the specimen fixing solution placement cavity will flow out, immersing the entire filter paper fixing column in the specimen fixing solution, thereby completing the sampling and sealing of the sample; then it is sent to the pathology department for pathological analysis.

[0019] (6) In the pathology department, the testing personnel unscrew the end cap and lift the filter paper fixing column upward. Under the friction between the outer edge of the filter plate and the inner side of the biopsy bottle, the filter plate moves upward and stops at the required position inside the biopsy bottle. The specimen fixative flows out through the filter holes provided on the filter plate, so that the sample stays on the filter paper or filter plate, which facilitates the extraction by the testing personnel.

[0020] This invention designs a biopsy bottle, its device, and its method of use, greatly simplifying the process of biopsy specimen extraction and packaging. While protecting the health of operators, the entire process is conducted under aseptic conditions, avoiding the possibility of specimen contamination. Furthermore, the convenient and clear labeling method for the biopsy bottle prevents operators from confusing the sampling site and number of specimens, which could lead to misjudgments in final pathological analysis and treatment, thereby causing medical accidents.

[0021] This invention provides the following technical solution and also has the following advantages:

[0022] 1. A biopsy vial, consisting of three parts: an end cap, a filter plate, and the vial body; its structure is scientifically sound and its production and preparation are convenient.

[0023] 2. A biopsy bottle application device, comprising a base, a top cover, and a hinge. The base includes a slot for securing the biopsy bottle and a stamp. The top cover has an operating guide for easy understanding of the usage steps and methods, providing convenience for the user.

[0024] 3. The end cap part has a built-in specimen fixing liquid pre-cavity, which is pre-filled with specimen fixing liquid and sealed with aluminum foil; the top is attached with blank label paper, which is convenient for stamping the required identification.

[0025] 4. The biopsy bottle body has the same thread at both upper and lower ends, which can be screwed with the end cap. When the end cap is screwed with the lower outer thread, the body protects the aluminum foil of the end cap, preventing the aluminum foil from being damaged during transportation and causing leakage of formalin solution. At the same time, the end cap also serves as the base of the biopsy bottle, which is convenient for fixing in the biopsy bottle placement groove of the using device.

[0026] 5. The filter paper is pre-fixed on the filter paper fixing column, and the biopsy tissue on the biopsy forceps is also easier to adhere to the filter paper, without the need for prior cutting and additional use of hemostatic forceps. Moreover, the sterile filter paper can better prevent the contamination of the biopsy tissue, and also eliminates the need to shake the bottle body when the filter paper is pasted on the bottle wall.

[0027] 6. After completing the sampling, the biopsy bottle is taken out of the biopsy bottle placement groove and pressed onto the required stamp, which can conveniently add the required identification on the blank end cap label on the top of the end cap.

[0028] 7. After completing the stamping, the end cap is unscrewed from the lower end of the biopsy bottle and screwed onto the upper outer thread of the biopsy bottle. During the screwing process, the cutter provided on the filter paper fixing column in the middle of the filter plate cuts the aluminum foil, and the specimen fixing liquid flows out to completely immerse the filter paper and biopsy tissue. During this process, the operator does not come into contact with the specimen fixing liquid, which protects the health of the personnel and saves operation time.

[0029] 8. The identification of the stamp can be designed and made according to the requirements of different clinical departments, which is clear and eye-catching, avoiding the risk of specimen confusion causing medical accidents. BRIEF DESCRIPTION OF DRAWINGS

[0030] The present application will be further described in conjunction with the drawings and examples.

[0031] Figure 1 is a structure diagram of a biopsy bottle of the present application Figure 1 ;

[0032] Figure 2 is a structure diagram of a biopsy bottle of the present application Figure 2 ;

[0033] Figure 3 is a structure diagram of a biopsy bottle of the present application Figure 1 ;

[0034] Figure 4 is a structure diagram of a biopsy bottle of the present application Figure 2 ;

[0035] Figure 5 is a disassembled structural schematic view of a biopsy bottle of the present application;

[0036] Figure 6 is a structural schematic view of a biopsy bottle using device of the present application;

[0037] Figure 7 is a reference view of a using state of a biopsy bottle using device of the present application;

[0038] Wherein: 1, biopsy bottle body; 2, end cap; 3, upper outer thread; 4, lower outer thread; 5, end cap label; 6, bottle body label; 7, bottom plate; 8, filter plate; 9, filter hole; 10, filter plate outer edge; 11, filter paper fixing column; 12, filter paper; 13, cutter; 14, support column; 15, limiting convex strip; 16, support column placing groove; 17, baffle; 18, inner thread; 19, specimen fixing liquid placing cavity; 20, aluminum foil; 21, device base; 22, device upper cover; 23, hinge; 24, biopsy bottle placing groove; 25, locking bead; 26, seal; 27, operation instruction. DETAILED DESCRIPTION

[0039] The present application will now be further described in detail with reference to the drawings. The drawings are simplified schematic views and only schematically show the basic structure of the present application, and thus only show the components related to the present application.

[0040] Specific embodiments, please refer to Figures 1-7The biopsy bottle comprises a biopsy bottle body 1, an end cover 2 and a filter plate 8, an upper outer thread 3 is arranged on the upper end of the biopsy bottle body 1, a lower outer thread 4 is arranged on the lower end of the biopsy bottle body 1, an inner thread 18 is arranged on the end cover 2 corresponding to the upper outer thread 3 and the lower outer thread 4, a specimen fixing solution placing cavity 19 is arranged in the middle of the end cover 2, an aluminum foil 20 for sealing the specimen fixing solution is arranged on the specimen fixing solution placing cavity 19, a plurality of filter holes 9 are arranged on the filter plate 8, a filter plate outer edge 10 is arranged around the filter plate 8, a filter paper fixing column 11 is fixed on the upper middle of the filter plate 8, a plurality of filter papers 12 are clamped in the filter paper fixing column 11, a cutter 13 is arranged on the top end of the filter paper fixing column 11 corresponding to the aluminum foil 20, a support column 14 is fixed on the lower middle of the filter plate 8, limiting convex strips 15 are arranged on the two sides of the support column 14, a support column placing groove 16 is arranged on the bottom plate 7 of the biopsy bottle body 1 corresponding to the support column 14, a plurality of baffles 17 are arranged on the inner side of the support column placing groove 16 corresponding to the limiting convex strips 15, an end cover label 5 is arranged on the top end of the end cover 2, a bottle body label 6 is arranged on the biopsy bottle body 1, the number of the filter papers 12 is four, and the number of the filter papers 12 can be adjusted according to the specific condition, the filter papers 12 are uniformly distributed around the filter paper fixing column 11, and the specimen fixing solution in the specimen fixing solution placing cavity 19 is formalin solution.

[0041] The using device of the biopsy bottle comprises a device base 21 and a device upper cover 22, the device base 21 and the device upper cover 22 are movably connected together through a hinge 23, a plurality of biopsy bottle placing grooves 24 are arranged on one side of the device base 21, a plurality of seals 26 are arranged on the device base 21, and an operation instruction 27 is attached in the device upper cover 22, the marks on the seals 26 can be different according to the requirement, and a locking bead 25 is arranged in the biopsy bottle placing groove 24.

[0042] The using method of the biopsy bottle and the using device thereof comprises the following steps.

[0043] (1) the sterile package is opened, and the biopsy bottle is taken out, at this time, the inner thread 18 of the end cover 2 is screwed on the lower outer thread 4 arranged on the lower end of the biopsy bottle body 1, the filter plate 8 is placed in the biopsy bottle body 1, the support column 14 is placed in the support column placing groove 16, and the limiting convex strips 15 are clamped between the baffles 17;

[0044] (2) the biopsy bottle body 1 with the end cover 2 screwed on the lower end is placed in the biopsy bottle placing groove 24 arranged in the device base 21, the end cover label 5 faces downward, and the locking bead 25 locks the biopsy bottle body 1;

[0045] (3), then the sample personnel will biopsy forceps biopsy tissue adhesion on filter paper 12, each biopsy bottle body 1 on the filter paper 12 adhesion of tissue derived from the same patient;

[0046] (4), after the sample on the filter paper 12 is placed, the sampling personnel take out the biopsy bottle body 1 from the biopsy bottle placing groove 24, according to the character marked, the end cap 2 at the bottom of the biopsy bottle body 1 is pressed on the seal 26 provided on the device base 21, so that the seal 26 is capped on the end cap label 5, and the biopsy bottle body 1 is identified;

[0047] (5), then the sampling personnel unscrew the end cap 2 from the lower end of the biopsy bottle body 1, and then screw the end cap 2 on the upper outer thread 3 at the upper end of the biopsy bottle body 1, in the process of screwing to the upper outer thread 3, the limiting convex strip 15 is clamped between the baffle 17 to prevent the filter paper fixing column 11 from rotating, and the cutter 13 provided at the top end of the filter paper fixing column 11 will cut the aluminum foil 20 provided on the specimen fixing liquid placing cavity 19 for sealing the specimen fixing liquid, the specimen fixing liquid in the specimen fixing liquid placing cavity 19 flows out, and the filter paper fixing column 11 is soaked in the specimen fixing liquid as a whole, so that the sampling and packaging of the sample are completed; then it is sent to the pathology department for pathological analysis;

[0048] (6), in the pathology department, the detection personnel unscrew the end cap 2, and lift the filter paper fixing column 11 upward, under the action of the friction force between the filter plate outer edge 10 and the inner side of the biopsy bottle body 1, the filter plate 8 moves upward and then stops at the required position in the biopsy bottle body 1, the specimen fixing liquid flows out through the filter hole 9 provided on the filter plate 8, so that the sample stays on the filter paper 12 or the filter plate 8, which facilitates the extraction of the detection personnel.

[0049] The biopsy bottle and the using device and method thereof are designed, which greatly simplify the extraction and packaging process of biopsy specimens. The health of the operator is protected, and the whole process is sterile, which avoids the possibility of specimen contamination. Meanwhile, the convenient and clear marking method of the biopsy bottle avoids the possible confusion of the operator in the sampling site and the number of blocks, which causes the misjudgment of the final pathological analysis and treatment, thereby causing a medical accident.

[0050] The present application provides the following technical solutions:

[0051] 1. A biopsy bottle, which is divided into an end cap, a filter plate and a biopsy bottle body; the structure is scientific and reasonable, and the production and preparation are convenient.

[0052] 2. A biopsy bottle using device, which comprises a device base, a device upper cover and a hinge. The base part is provided with a placing groove for fixing the biopsy bottle and a seal. The upper cover part is provided with an operation guide for conveniently understanding the use steps and methods, which brings convenience to the user.

[0053] 3. The end cap part has a built-in specimen fixing liquid pre-cavity, and the inside is pre-filled with specimen fixing liquid and sealed with aluminum foil; the top is attached with blank label paper, which is convenient for stamping the required identification.

[0054] 4. The biopsy bottle body has the same thread at both the upper and lower ends, which can be screwed with the end cap. When the end cap is screwed with the lower outer thread, the body protects the aluminum foil of the end cap, preventing the aluminum foil from being damaged during transportation and causing leakage of formalin solution. At the same time, the end cap also serves as the base of the biopsy bottle, which is convenient for fixing in the biopsy bottle placement groove of the use device.

[0055] 5. The filter paper is pre-fixed on the filter paper fixing column, and the biopsy tissue on the biopsy forceps is also easier to adhere to the filter paper, without the need for prior cutting and the use of hemostatic forceps. In addition, the sterile filter paper can better prevent the contamination of the biopsy tissue. It also eliminates the need to shake the bottle body when the filter paper is pasted on the bottle wall.

[0056] 6. After completing the sampling, the biopsy bottle is removed from the biopsy bottle placement groove and pressed onto the required stamp, which can conveniently add the required identification on the blank end cap label on the top of the end cap.

[0057] 7. After completing the stamping, the end cap is unscrewed from the lower end of the biopsy bottle and screwed onto the upper outer thread of the biopsy bottle. During the screwing process, the cutter arranged on the filter paper fixing column in the middle of the filter plate will cut the aluminum foil, and the specimen fixing liquid will flow out to completely immerse the filter paper and biopsy tissue. During this process, the operator does not come into contact with the specimen fixing liquid, protecting the health of the personnel and saving operation time.

[0058] 8. The identification of the stamp can be designed and manufactured according to the requirements of different clinical departments, which is clear and eye-catching, avoiding the risk of specimen confusion causing medical accidents.

[0059] Obviously, the above embodiments are only examples for clear illustration, and not a limitation on the implementation. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, it is not necessary and impossible to exhaust all the implementation methods. The obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. A biopsy bottle comprising a biopsy bottle body (1), an end cap (2) and a filter plate (8), characterized in that: The upper end of the biopsy bottle body (1) is provided with an upper outer thread (3), the lower end of the biopsy bottle body (1) is provided with a lower outer thread (4), the inner thread (18) corresponding to the upper outer thread (3) and the lower outer thread (4) is arranged in the end cover (2), the middle part of the end cover (2) is provided with a specimen fixing solution placing cavity (19), the aluminum foil (20) for sealing the specimen fixing solution is arranged on the specimen fixing solution placing cavity (19), a plurality of filter holes (9) are arranged on the filter plate (8), the filter plate (8) is provided with a filter plate outer edge (10) around, the filter paper fixing column (11) is fixed on the upper middle part of the filter plate (8), a plurality of filter papers (12) are clamped in the filter paper fixing column (11), the cutter (13) corresponding to the aluminum foil (20) is arranged at the top end of the filter paper fixing column (11), the support column (14) is fixed on the lower middle part of the filter plate (8), the limiting convex strips (15) are arranged on the two sides of the support column (14), the support column placing groove (16) corresponding to the support column (14) is arranged on the bottom plate (7) of the biopsy bottle body (1), a plurality of baffles (17) are arranged on the inner side of the support column placing groove (16) corresponding to the limiting convex strips (15), the biopsy bottle is used in cooperation with the using device of the biopsy bottle, the using device comprises a device base (21) and a device upper cover (22), the device base (21) and the device upper cover (22) are movably connected together through a hinge (23), a plurality of biopsy bottle placing grooves (24) are arranged on one side of the device base (21), a plurality of seals (26) are arranged on the device base (21), the operation instruction (27) is attached in the device upper cover (22), wherein the inner thread (18) of the end cover (2) is screwed on the lower outer thread (4) arranged on the lower end of the biopsy bottle body (1) before use, the end cover (2) is screwed on the upper outer thread (3) of the upper end of the biopsy bottle body (1) during use, the end cover label (5) is arranged at the top end of the end cover (2), the bottle body label (6) is arranged on the biopsy bottle body (1), the locking beads (25) are arranged in the biopsy bottle placing groove (24).

2. The biopsy bottle of claim 1, wherein: The number of the filter papers (12) is four, and the filter papers (12) are uniformly distributed around the filter paper fixing column (11).

3. The biopsy bottle of claim 1, wherein: The specimen fixing solution in the specimen fixing solution placing cavity (19) is formalin solution.

4. A device for use of a biopsy vial comprising a biopsy vial according to claim 1, characterized in that: The device base (21) and the device upper cover (22) are movably connected together through the hinge (23), a plurality of biopsy bottle placing grooves (24) are arranged on one side of the device base (21), a plurality of seals (26) are arranged on the device base (21), and the operation instruction (27) is attached in the device upper cover (22).

5. The device of claim 4, wherein: The marks on the seals (26) are different from each other.

6. A method of using a biopsy vial and its use device, using a biopsy vial according to claim 1 characterized in that The steps are as follows: (1), open sterile packaging, take out the biopsy bottle, at this time the inner thread (18) of the end cap (2) is screwed on the lower outer thread (4) provided on the lower end of the biopsy bottle body (1), the filter plate (8) is placed in the biopsy bottle body (1), the support column (14) is placed in the support column placement slot (16), so that the limiting convex strip (15) is clamped between the baffles (17); (2), the biopsy bottle body (1) with the end cap (2) screwed on the lower end is placed in the biopsy bottle placement slot (24) provided in the device base (21), the end cap label (5) faces down, and the locking ball (25) locks the biopsy bottle body (1); (3), then the sampling personnel adhere the biopsy tissue extracted by the biopsy forceps to the filter paper (12), and the tissue adhered to the filter paper (12) in each biopsy bottle body (1) comes from the same patient; (4), after the sample on the filter paper (12) is placed, the sampling personnel take out the biopsy bottle body (1) from the biopsy bottle placement slot (24), according to the characters to be marked, press the end cap (2) at the bottom of the biopsy bottle body (1) on the seal (26) provided on the device base (21), so that the seal (26) is applied to the end cap label (5), and the biopsy bottle body (1) is identified; (5), then the sampling personnel unscrew the end cap (2) from the lower end of the biopsy bottle body (1), and then screw the end cap (2) on the upper outer thread (3) at the upper end of the biopsy bottle body (1), in the process of screwing on the upper outer thread (3), the limiting convex strip (15) is clamped between the baffles (17) to prevent the filter paper fixing column (11) from rotating, and at the same time, the cutter (13) provided at the top end of the filter paper fixing column (11) will cut the aluminum foil (20) provided on the specimen fixing liquid placement cavity (19) to seal the specimen fixing liquid, the specimen fixing liquid in the specimen fixing liquid placement cavity (19) flows out, and the filter paper fixing column (11) is soaked in the specimen fixing liquid, thereby completing the sampling and packaging of the sample; then it is sent to the pathology department for pathological analysis; (6), in the pathology department, the detection personnel unscrew the end cap (2), and lift the filter paper fixing column (11) upward, under the friction force between the filter plate outer edge (10) and the inner side of the biopsy bottle body (1), the filter plate (8) moves upward and then stays at the required position in the biopsy bottle body (1), the specimen fixing liquid flows out through the filter hole (9) provided on the filter plate (8), so that the sample stays on the filter paper (12) or the filter plate (8), which facilitates the extraction of the detection personnel.

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