CN218496476U - Sampling and detecting integrated device - Google Patents

Abstract

The utility model relates to a stool sample and detection integrated device, its sample and the detection that is used for samples such as excrement and urine can not always obtain the problem of effective test result when can solving sample such as excrement and urine and detecting. The sampling and detecting integrated device comprises a cover 4 and a main container 3, wherein the cover 4 is connected with a sampling rod 2, and the main container 3 comprises a sample injection cavity 22 at one side and a test cavity 21 at the other side; it is characterized in that the bottom of the liquid storage cavity 25 is provided with a closed annular groove 9 around the liquid outlet hole 12.

Description

Sampling and detecting integrated device

Technical Field

The utility model relates to a sample and detection integrated device for the sample such as excrement and urine and detection.

Background

The intestinal cancer and the gastric cancer are the first 5 large tumors in China, 37.6 thousands of people die each year due to the intestinal cancer and 80 thousands of people die due to the gastric cancer, one of the main reasons is that early diagnosis and early detection cannot be realized, fecal occult blood detection and helicobacter pylori antigen screening of two indexes recommended by intestinal cancer and gastric cancer world health organization are performed, and conventional fecal detection needs to be performed by a subject to leave feces for inspection and is performed by hospital professionals. However, due to the high requirements for specimen preservation and transportation in stool collection and handling, the hospital participants often ignore or do not have the sense of convenience to not check the stool. The sample is not easy to collect and transport, the operation has foul smell, and the operation is inconvenient, so the excrement inspection is the item with the highest abandon rate in China and the whole world. However, fecal sample detection is the first recommended method commonly recognized by the world health organization, american society of oncology, and experts in china for intestinal cancer screening, and the specificity of fecal sample detection for intestinal cancer is close to 80% at present, while the specificity of blood detection for intestinal cancer is only about 30%.

The excrement detection process of the current hospital or physical examination mechanism comprises the steps that a physical examination person goes to a clinical laboratory to receive an excrement sampling cup, goes to a toilet to collect excrement into the excrement cup and transports the excrement into the clinical laboratory, an inspector collects the excrement into a diluent to be uniformly mixed, redundant excrement is discarded, a reagent package is opened to take out the reagent, the sample after uniform mixing is absorbed by a straw and is added on a reagent sample pad, and the result is interpreted within 5-10 minutes. Excrement and liquid are open during detection, the frequency of direct vision of the excrement is high, the excrement is easy to overturn and overflow during operation, hundreds of bacteria in the excrement are easy to pollute, and secondary pollution is easy to cause after the excrement is used and discarded. After the feces are subjected to routine inspection and specimen collection, the inspection is finished within 1-2 hours, otherwise, the cell components in the feces can be destroyed and decomposed due to the influence of pH, digestive enzyme and the like. Since the stool sample can not be collected at any time like the blood sample, the uncertainty of the time when the physical examiner is transported to the place needing physical examination after collecting at home and the time when the physical examiner can detect the stool sample immediately in the clinical laboratory is also the main reason of abandoning the examination. The problems of unsanitary excrement transportation, time delay, embarrassment and the like are also the main reasons for abandoning the excrement. Therefore, it is necessary to develop an integrated device (hereinafter, referred to as "integrated device" or "device") that can perform sampling and detection at any time and place, not limited to hospitals, without the need to open the device for detecting a liquid.

The prior art integrated devices typically include a cover, a main container, a mounting for a test medium (e.g., test paper), a sampling wand, a reservoir, and the like, wherein the sampling wand is used to withdraw a fecal sample from the tip and insert the fecal sample into the reservoir of the test device. The excrement sample and the liquid in the liquid storage cavity are mixed to form a sample solution, then a user pokes the bottom of the liquid storage cavity through a sampling rod, the sample solution flows into a cavity or a groove at the bottom from the poked opening and flows to the bottom end of the test medium, and then a color band appears on a running board on the test medium through siphon action, so that the user observes a detection result.

However, in the prior art integrated device, the sample solution sometimes fails to flow efficiently to the test medium holder, and thus fails to contact the test medium (or the test medium fails to contact a sufficient amount of sample solution), and further fails to run on the test medium, resulting in failure to obtain an effective test result. Since the integrated device is generally disposable, once a valid test result is not obtained, the device has to be replaced for retesting, which not only results in waste of test products and materials, but also results in waste of time and energy for the tester since the stool sample cannot be collected at any time. The prior art has never been studied or taught for any reason why a valid test result is not obtained, and therefore there is no technical means known in the art to solve this technical problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a sample and detection integrated device, it can solve the problem that can not always obtain effective test result when detecting to samples such as excrement and urine.

Specifically, the utility model relates to a sample and detect integrated device, it includes lid 4 and main part container 3, be connected with sampling stick 2 on the lid 4, main part container 3 contains sampling chamber 22 and the test chamber 21 of opposite side of one side, be partition layer 23 in the middle of the sampling chamber 22, partition layer 23 center has into sample hole 24, this into sample hole 24 suits with the cross-section of sampling stick 2, the part that lies in partition layer 23 below in sampling chamber 22 is liquid storage cavity 25, there is liquid outlet 12 liquid storage cavity 25 bottom, liquid outlet 12 is sealed with spacer 40, main part container 3 bottom has liquid receiving cavity 26, liquid receiving cavity 26 has test medium fixing base 6 in the position below test chamber 21, the one end of test medium 5 is fixed in test medium fixing base 6, the other end extends to in test chamber 21; it is characterized in that the bottom of the liquid storage cavity 25 is provided with a closed annular groove 9 around the liquid outlet hole 12.

In one embodiment, the utility model discloses a sample and detection integrated device includes spacing subassembly, spacing subassembly for example is stopper or spacing buckle.

In one embodiment, the sampling and detecting integrated device of the present invention comprises a quantitative assembly, the quantitative assembly has a quantitative plug 8 and a quantitative cylinder 7, the quantitative plug 8 comprises a quantitative plug rod 34 and one or more blades 36 fixed on the upper portion of the quantitative plug rod 34, the size and shape of the blades 36 are suitable for or in interference fit with the inner diameter of the quantitative cylinder 7; two or more than two quantifying bolt brackets 35 which protrude above the upper edge of the quantifying barrel 7 are arranged on the quantifying barrel 7, and the blades 36 are kept by the quantifying bolt brackets 35 at the positions above the upper edge of the quantifying barrel 7; the liquid outlet hole 12 is positioned in the center of the bottom of the quantifying cylinder 7, and the closed-loop groove 9 is positioned on the periphery of the quantifying cylinder 7. Preferably, the horizontal position of the deepest part of the closed-loop recess 9 is located below the horizontal position of the upper edge of the dosing cylinder 7; in particular, the closed-loop groove 9 may be formed by a gap between the outer wall of the dosing cylinder 7 and the inner wall of the reservoir 25. Furthermore, the dosing pin 34 preferably has a groove in the vertical direction.

Through the technical scheme of the utility model, can solve aforementioned problem effectively for the proportion (also called "real rate of measurement" herein) that obtains effective test result reaches or reaches 100% basically.

Drawings

Fig. 1 is a schematic structural diagram of the integrated device of the present invention.

Fig. 2 is a schematic view of an embodiment of a tube body in the device of the present invention.

Figure 3 is a schematic view of one embodiment of a sampling wand of the apparatus of the present invention.

Fig. 4 is a schematic diagram of an embodiment of a stopper in the device of the present invention.

Fig. 5 is a schematic diagram of a positional relationship between the cover and the stopper according to an embodiment of the present invention.

Fig. 6 is a schematic view of an embodiment of a dosing assembly of the device of the present invention.

Fig. 7 is a schematic view of an embodiment of a dosing plug of the device of the invention.

Fig. 8 is a schematic view of an embodiment of a dosing assembly of the device of the present invention.

Figure 9 is a schematic view of one embodiment of a dosing assembly of the device of the present invention.

Detailed description of the invention

The inventor of the present invention has found that the reason for the low actual measurement rate may be related to the generation of air bubbles in the liquid storage chamber during use. In order to mix the sample and the liquid sufficiently when used, it is inevitable to shake the integrated device, but bubbles are likely to be generated during the shaking process. Because the liquid storage cavity after the sampling rod is inserted becomes very narrow, especially in the area around the top end of the sampling rod and the liquid outlet hole, air bubbles are easy to flow to the periphery of the liquid outlet hole along with the liquid and accumulate at the periphery of the liquid outlet hole, and cannot be discharged, so that the process of flowing the sample solution out of the liquid outlet hole into the liquid receiving cavity is hindered.

The generation of bubbles needs to be reduced at the source due to the structural particularity of the integrated device (particularly the position around the liquid outlet hole), which causes the bubbles to be difficult to discharge once generated. The liquid storage cavity of the integrated device is a narrow and closed structure, and only the sampling rod can move in the vertical direction, so that bubbles cannot be prevented from being generated in an external intervention mode.

The inventor of the utility model further finds that as long as set up closed loop shape recess around liquid hole in the liquid storage cavity bottom, just can reduce the bubble effectively and produce, speculates that its reason may be: due to the structure of the groove, gas cannot easily reach the bottom of liquid, and bubbles cannot easily form under the action of the surface tension of the liquid. From this, sample solution can be more smoothly from going out the liquid hole outflow and then with the test medium contact to improve the real rate of surveying, accomplished like "utility model content" part from this the technical scheme of the utility model.

The technical solution of the present invention is described in detail below.

In one embodiment, the body vessel 3 may be formed by a combination of a tube body (including the sample chamber 22 and the test chamber 21) and a base (including the liquid receiving chamber 26).

In one embodiment, the sample introduction chamber 22 may be, for example, cylindrical, and the test chamber 21 may be, for example, rectangular. In one embodiment, the top of the test chamber 21 may be vented 20 to allow for pressure equalization between the interior and exterior of the integrated device.

In one embodiment, the upper portion of the sample chamber 22 can be closed by a cover 4, the cover 4 is connected to the center of the sampling rod 2, and the end of the sampling rod 2 is a sampling portion 19 with a groove structure (e.g., a thread structure) to facilitate sampling. One embodiment of a cap 4 and sample wand 2 is shown in FIG. 2 (also shown in FIG. 2 as stop block 1, described below).

In one embodiment, the lid 4 covers the sample chamber 22, and when the lid 4 is pressed to the sealing position, the top of the sample chamber 22 can be sealed, and when the lid 4 is moved downward to the liquid outlet position, the spacer 40 of the liquid outlet 12 can be poked out from the head end of the sampling rod 2 while the top of the sample chamber 22 is kept sealed.

In one embodiment, the sampling cavity 22 is provided with a partition layer 23 in the middle, the center of the partition layer 23 is provided with a sampling hole 24, and the diameter of the sampling hole 24 is consistent with the cross-sectional shape (e.g. circular) of the sampling rod 2 and is suitable for the diameter, so that when the sampling rod 2 with the sample passes through, the excess sample on the surface of the sampling rod 2 can be scraped, and the sampling hole 24 can be sealed by the sampling rod 2 to prevent the sample solution from overflowing. In one embodiment, the sampling wand 2 may also be provided with a sealing member (e.g., a sealing groove, a sealing ring, and a tube positioning rib engaged therewith) at a position corresponding to the sampling hole 24 to enhance the sealing effect. In another embodiment, to facilitate guiding the sampling rod 2 through, the top surface of the partition layer 23 may be configured as a funnel shape, and the sampling hole 24 is located at the bottom of the funnel.

In one embodiment, the reservoir 25 contains a liquid known in the art (e.g., buffer solution, etc.) for dissolving the sample in an amount sufficient to ensure that a sufficient amount of liquid remains after the closed-loop recess 9 is filled to sufficiently dissolve the sample on the sampling wand 2.

In one embodiment, the shape of the closed loop shaped recess 9 may be a circular ring or any other closed loop shape, such as an oval, a polygon (e.g. hexagon, octagon) etc. The deepest level of the closed-loop groove 9 may be the same level as the spacer 40, or above or below the level of the spacer 40, as the case may be.

In one embodiment, the test medium 5 may be a test strip or any other test medium known in the art.

In one embodiment, the testing chamber 21 may be made of a transparent material or have a transparent window, so that the user can observe the running board from the outside to make a judgment on the detection result.

In use, the cover 4 is opened, the head end of the sampling rod 2 is used for collecting a sample (for example, by contacting the sampling part with the sample), the sampling rod 2 is inserted back into the sample injection cavity 22 and enters the liquid storage cavity 25 through the sample injection hole 24, the sample injection cavity 22 is sealed (for example, staying at a sealing position) by the cover 4, and the device is shaken to fully dissolve the sample in the solution; the cap 4 is moved downward (e.g., to a dispensing position), the septum 40 is poked open at the bottom of the sampling wand 2, the sample solution enters the fluid receiving chamber 26 and flows to the test medium holder 6, contacts the test medium 5 and begins running the board, and the user observes the test results, thereby completing the test.

In a preferred embodiment, the integrated device of the present invention may contain a stop assembly to prevent inadvertent pushing of the cap 4 to poke the septum 40 open when not desired (e.g., when no sample has been taken). In a specific embodiment, the limiting component can be a limiting block 1 which is located at the top of the testing chamber 21 and is parallel to the cover 4, the size and shape of the limiting block are matched with the cross section of the testing chamber 21, and a protrusion/depression structure exists between the contact parts of the limiting block and the cover 4, so that the cover 4 is prevented from moving relative to the limiting block 1 in the vertical direction; when the sealing device is used, the limiting block 1 needs to be removed, and the cover 4 can be moved downwards, so that the cover 4 is moved from the sealing position to the liquid outlet position. In another embodiment, the stopping assembly may be composed of a stopping buckle on the lid 4 and/or the main container 3, and only a certain pushing force is applied to move the lid 4 from the sealing position to the dispensing position by breaking through the limit of the stopping buckle.

In a preferred embodiment, the integrated device of the present invention may contain a quantification assembly, whereby the user can control the amount of sample solution flowing into the liquid-receiving chamber 26 to improve the sensitivity, reliability and accuracy of the test. Because the existence of ration subassembly makes the structure around play liquid hole 12 more meticulous, also is blocked by the bubble more easily, consequently to the device that has the ration subassembly, the technical scheme of the utility model has more important meaning in the aspect of improving the actual measurement rate.

Specifically, the quantitative subassembly of the utility model has a ration bolt 8 and a quantitative section of thick bamboo 7, ration bolt 8 contains quantitative bolt pole 34 and is located on quantitative bolt pole 34 upper portion, with one or more blades 36 of quantitative bolt pole 34 perpendicular, the size and the shape of blade 36 are fit for or are interference fit with the internal diameter of quantitative section of thick bamboo 7 for it can push down the liquid flow after moving into quantitative section of thick bamboo 7. Two or more than two quantifying bolt brackets 35 which protrude above the upper edge of the quantifying barrel 7 are arranged on the quantifying barrel 7, and the blades 36 are kept by the quantifying bolt brackets 35 at the positions above the upper edge of the quantifying barrel 7; the liquid outlet 12 is positioned at the center of the bottom of the quantifying cylinder 7, and the closed-loop groove 9 is positioned at the periphery of the quantifying cylinder 7.

The horizontal position of the deepest part of the closed-loop groove 9 is positioned below the horizontal position of the upper edge of the quantifying cylinder 7; in one embodiment, the closed loop shaped groove 9 is formed by a gap between the outer wall of the dosing cylinder 7 and the inner wall of the reservoir 25.

In a preferred embodiment, the dosing pin 34 may have grooves in the vertical direction to promote downward flow of the sample solution while maintaining mechanical strength and also to help escape bubbles when they form.

Before use (for example, when the lid 4 is in the sealed position), a gap exists between the blade 36 and the upper edge of the measuring cylinder 7, so that when a user dissolves a sample, a sample solution can diffuse from the gap into the measuring cylinder 7; the top surface of the quantitative bolt 8 is connected or close to the head end of the sampling rod 2 (a groove with a shape suitable for the head end of the sampling rod 2 can be arranged on the top surface of the quantitative bolt 8); the lower part of the quantitative bolt 8 (namely the lower end of the quantitative bolt rod 34) is connected or close to the clapboard 40, and a knife edge or a cone-shaped structure and the like can be arranged at the lower part of the quantitative bolt 8 so as to facilitate poking open the clapboard 40; the liquid level in the reservoir 25 remains a sufficient margin after the blade 36 of the dosing pin 8 is fully submerged to sufficiently dissolve the sample on the sampling wand 2.

When the device is used, the sample is sufficiently dissolved in the liquid above the blade 36 of the quantitative plug 8 by shaking the device, and then the liquid containing the sample is diffused into the quantitative cylinder 7 through the gap between the blade 36 of the quantitative plug 8 and the upper edge of the quantitative cylinder 7. The cover 4 is moved downwards, the head end of the sampling rod 2 pushes the quantitative bolt 8 downwards, and the lower end of the quantitative bolt rod 34 pokes the partition plate 40 open; meanwhile, since the blade 36 of the quantitative plug 8 moves to the upper edge of the quantitative cylinder 7, the quantitative plug 8 pushes the liquid in the quantitative cylinder 7 to flow down out of the partition 40. By controlling the distance that the quantitative plug 8 moves in the quantitative cylinder 7, the amount of the sample solution flowing out of the partition plate 40 can be controlled, thereby achieving the quantification of the sample. Due to the arrangement of the closed ring-shaped groove, bubbles are prevented from being generated and plugged in the liquid outlet hole 12 in the quantitative determination process of the sample, so that the actual determination rate can be improved.

Detailed Description

The foregoing embodiments of the present invention will be described in more detail with reference to the accompanying drawings. The structures illustrated in the drawings are for illustrative purposes only and are not intended to limit the scope of the present invention.

A general embodiment of the present invention is shown in the schematic diagram of fig. 1, wherein the general configuration and position relationship between the lid 4, the sampling wand 2, the main body container 3, the test chamber 21, the sample introduction chamber 22, the partition layer 23, the liquid storage chamber 25, the liquid outlet 12, the spacer 40, the liquid receiving chamber 26, the test medium fixing base 6, the test medium 5, and the closed loop groove 9 are shown. Before use, the lid 4 is in a sealed position (e.g., with the lower edge of the lid 4 in position M as shown in fig. 1), and after mixing the sample with the solution in the reservoir 25, the lid 4 is pushed to a dispensing position (e.g., with the lower edge of the lid 4 in position N as shown in fig. 1), with the septum 40 poked open, and the sample solution can flow out of the dispensing aperture 12 into the fluid receiving chamber 26 and into the test medium holder 6 to contact the test medium 5.

One embodiment of the tube body is shown in fig. 2, which shows a rectangular test chamber 21, a cylindrical sample introduction chamber 22, a barrier layer 23 and a sample introduction hole 24, the top surface of the barrier layer 23 being funnel-shaped. The test chamber 21 has an air vent 20 at the top.

One embodiment of a cap-sampling wand is shown in FIG. 3, in which a cap 4 can be fitted with a stopper 1 as illustrated in FIG. 4 to serve as a stopper, and the positional relationship between the two in an integrated device is shown in FIG. 5 (only the structure above the partition layer is shown). Wherein, be provided with inner circle 16 and C shape outer lane 15 on the lid, the external diameter of inner circle 16 closely suits with the appearance intracavity footpath, adopt smooth pipe wall closely to laminate and can seal appearance chamber, the internal diameter of C shape outer lane 15 suits with appearance chamber external diameter, C shape outer lane 15 overlaps outside appearance chamber, the clearance between inner circle 16 and C shape outer lane 15 suits with the thickness of appearance chamber pipe wall, sampling stick 2 fixes in the center of inner circle 16, inner circle 16 is located the pipe wall centre of C shape outer lane 15 opening part and is equipped with reference column mounting hole 14, suit with the bellied spacing reference column 11 of stopper 1. When the limiting and positioning surface 10 of the limiting block 1 abuts against the sampling rod positioning and limiting surface 13 of the cover 4 and the limiting and positioning column 11 is inserted into the positioning column mounting hole 14, the cover 4 can be prevented from moving downwards to play a role in fixing. In addition, the sampling wand portion of fig. 3 also includes a seal groove 17 and a seal ring tube position rib 18 that engages a seal ring (not shown) on the sample port to enhance the sealing effect between the sampling wand and the sample port. Furthermore, the head end of the sampling wand of FIG. 3 is a sampling portion 19 with a threaded groove for scraping a sample.

One embodiment of the dosing assembly, including its variants, is shown in fig. 6 to 9, where the dosing cylinder 7, the dosing pin 8, the dosing pin rod 34, the dosing pin holder 35 are shown, and the dosing pin 8 of fig. 6 and 8-9 has two blades 36. When not in use, the quantitative stopper 8 is fixed at the position A in FIG. 6 by the engagement of the blade 36 with the blade engagement point 37 and the engagement projection 39 with the quantitative stopper engagement surface 47, and cannot move up and down. The top surface of the dosing pin 8 is provided with a pressure transfer surface 43 and a stop surface 44 configured to conform to the shape of the head end of the sampling wand 2. When the quantitative plug is used, the cover 4 is moved downwards, the head end of the sampling rod 2 pushes the top surface of the quantitative plug 8 downwards, and the lower end of the quantitative plug rod 34 is pushed to poke the partition plate 40 open through the sharp quantitative plug knife edge 48; at the same time, since the blade 36 moves to the upper edge of the dosing cylinder 7, the dosing pin 8 pushes the liquid in the dosing cylinder 7 to flow downwards through the drainage groove 46 on the stem 34 of the dosing pin until it flows out of the liquid outlet 12 into the liquid receiving chamber 26. By controlling the distance the quantitative plug moves in the quantitative cylinder (e.g., to the position B of FIG. 6), the amount of sample solution flowing out of the partition plate can be controlled. Alternatively, the dosing assembly may be integrally formed with the other component or may be attached to the other component by a structure such as a snap-in detent 41.

In order to verify the technical effects of the present invention, the device having the basic structure shown in fig. 1 and the quantitative assembly shown in fig. 9 is used to perform the test operations of the experimenter and the non-experimenter, wherein the non-experimenter operates 200 sets and 1800 sets, and the test of 2000 sets of detection devices is performed cumulatively, wherein the experimenter is a professional engaged in the product research and development and inspection of the company, and the non-experimenter is other personnel not engaged in the product research and development and inspection related works recruited by the company. In the test operation of testers and non-testers, the actual measurement rate is 100%.

The directions "up" and "down" used in the present specification refer to directions when the integrated device of the present invention is placed upright.

The part numbers used in this specification and the drawings are summarized below:

1. the device comprises a limiting block, 2 parts of a sampling rod, 3 parts of a main body container, 4 parts of a cover, 5 parts of a test medium, 6 parts of a test medium fixing seat, 7 parts of a quantifying cylinder, 8 parts of a quantifying bolt, 9 parts of a closed-loop groove, 10 parts of a limiting and positioning surface, 11 parts of a limiting and positioning column, 12 parts of a liquid outlet hole, 13 parts of a sampling rod positioning and limiting surface, 14 parts of a positioning column mounting hole, 15 parts of a cover C-shaped outer ring, 16 parts of a cover inner ring, 17 parts of a sealing groove, 18 parts of a sealing ring pipe positioning rib, 19 parts of a sampling part, 20 parts of an air hole, 21 parts of a test cavity, 22 parts of a sample feeding cavity, 23 parts of a partition layer, 25 parts of a liquid storage cavity, 26 parts of a liquid receiving cavity, 34 parts of a quantifying bolt rod, 35 parts of a quantifying bolt support, 36 parts of a blade, 37 parts of a blade clamping point, 38 parts of a quantifying cylinder cavity, 39 parts of a buckling salient point, 40 parts of a spacer, 41 parts of a buckling point, 42 parts of an assembling and pressing surface, 43 parts of a pressure transmission surface, 44 parts of a stopping surface, 45 parts of a blade supporting surface, 46 parts of a guiding groove, 47 parts of a quantifying bolt and a knife edge surface.

It will be appreciated by those skilled in the art that modifications (additions and/or deletions) may be made to the components, structures, movements, and adaptations described herein without departing from the full scope and spirit of the invention, which encompass such modifications and any and all equivalents thereof.

Claims (9)

1. A sampling and detection integrated device comprises a cover (4) and a main body container (3), wherein a sampling rod (2) is connected onto the cover (4), the main body container (3) comprises a sampling cavity (22) on one side and a test cavity (21) on the other side, a partition layer (23) is arranged in the middle of the sampling cavity (22), a sampling hole (24) is formed in the center of the partition layer (23), the sampling hole (24) is matched with the cross section of the sampling rod (2), a liquid storage cavity (25) is arranged below the partition layer (23) in the sampling cavity (22), a liquid outlet (12) is formed in the bottom of the liquid storage cavity (25), the liquid outlet (12) is sealed by a partition sheet 40, a liquid receiving cavity (26) is formed in the bottom of the main body container (3), a test medium fixing seat (6) is arranged below the test cavity (21) in the liquid receiving cavity (26), one end of a test medium (5) is fixed in the test medium fixing seat (6), and the other end of the test medium extends into the test cavity (21); it is characterized in that the bottom of the liquid storage cavity (25) is provided with a closed annular groove (9) around the liquid outlet hole (12).

2. A sampling and testing integrated device according to claim 1 and including a stop assembly.

3. A sampling and testing integrated device according to claim 2 and wherein said limiting means is a limiting block or a limiting buckle.

4. A sampling and detection integrated device according to any one of claims 1 to 3, comprising a quantitative assembly having a quantitative plug (8) and a quantitative cylinder (7), wherein the quantitative plug (8) comprises a quantitative plug rod (34) and one or more blades (36) fixed on the upper part of the quantitative plug rod (34), and the size and shape of the blades (36) are adapted to or in interference fit with the inner diameter of the quantitative cylinder (7); the quantitative cylinder (7) is provided with two or more quantitative bolt brackets (35) which protrude above the upper edge of the quantitative cylinder (7), and the quantitative bolt brackets (35) keep the blades (36) at the positions above the upper edge of the quantitative cylinder (7); the liquid outlet (12) is positioned at the center of the bottom of the quantitative cylinder (7), and the closed-loop groove (9) is positioned at the periphery of the quantitative cylinder (7).

5. A sampling and testing integrated device according to claim 4, wherein the deepest level of said closed ring-shaped groove (9) is located below the level of the upper edge of the dosing cylinder (7).

6. A sampling and testing integrated device according to claim 5, wherein the closed annular recess (9) is formed by a gap between the outer wall of the dosing cylinder (7) and the inner wall of the reservoir (25).

7. An integrated sampling and testing device according to claim 4, wherein the dosing pin (34) is vertically grooved.

8. An integrated sampling and testing device according to claim 5, wherein the dosing pin (34) is vertically grooved.

9. An integrated sampling and testing device according to claim 6, wherein the dosing pin (34) has a groove in the vertical direction.

Images