CN213078498U - Detachable detection device - Google Patents

Abstract

The utility model discloses a detachable detection device, which comprises a first cavity which is positioned in a cup body and used for collecting samples; a second chamber located within the sample vial; a first passage for communicating the first chamber and the second chamber; and the movable sealing element realizes a communication state and a non-communication state between the first cavity and the second cavity through the movement of the sealing element. The detection device is on the basis function of collecting, detecting the sample, still has the function that is used for the secondary to detect in collecting the sample to the sample bottle, and the sample bottle can be dismantled from detection device inside alone, therefore the sample in the sample bottle must not receive the influence of test element in the detection device, ensures to keep the purity of appearance.

Description

Detachable detection device

Technical Field

The utility model relates to a detection device especially relates to the device that can detect and collect.

Background

The following background description is merely an introduction to the general knowledge and is not intended to limit the invention in any way.

Currently, a large number of test devices for detecting whether a sample contains an analyte are used in hospitals or homes, and these test devices for rapid diagnosis include one or more test reagent strips, such as an early pregnancy test, a drug abuse test, and the like. The rapid diagnosis test device is convenient, and can obtain the test result on the test reagent strip within one minute or at most ten minutes.

Drug detection is widely applied and is commonly used in drug-resistant departments, public security bureaus, drug rehabilitation centers, physical examination centers, national soldier physical examination places and other institutions. The drug detection urine cup has various drug detection types and frequent times, and has a huge market demand, and after the drug detection urine cup on the market finishes detection, the sample in the urine cup is polluted by the detection reagent and cannot be continuously used for secondary confirmation detection, for example, as described in U.S. patent 7300633.

There are a large amount of disposable detection device that has gathered collection and detection in an organic whole among the prior art, chinese patent 2008103055231 describes for example, including the cup, the side of cup is equipped with the test panel that contains the test paper, the cup can communicate with the region of test panel place, as described in paragraph 0005 of the specification of this document, in the urine cup was placed in to the person of being detected urine, the liquid outlet on the locating part control test panel at this moment is not UNICOM with the intercommunicating pore on the cup, when the person of being detected need examine, the person of being detected adjusts locating part, with liquid outlet and intercommunicating pore, invert the cup simultaneously, urine flows into in the test strip cavity, autonomic start-up reaction. After the reaction is finished, the result is interpreted and recorded, and the urine cup is placed upright, so that the separation of the urine in the detection area and the urine in the urine cup is realized. Although this test device enables the urine in the test region to be separated from the urine in the urine cup, this form of separation is not exhaustive and the urine in the test region is separated from the urine in the urine cup in substantially the same test device, which is inconvenient. For example: the operator needs to keep a sample of the urine in the urine cup for the following secondary detection, at which time he is either kept with the detection area (whether the test agent in the detection area produces and/or volatilizes substances affecting the urine in the urine cup, which is unknown); or to withdraw a portion of the urine from the urine cup and store it in another collection container (which, although it is ensured that the sample is not contaminated, is relatively cumbersome).

In view of the above technical problems, it is desirable to improve the above and provide an alternative way to overcome the shortcomings of the conventional technologies.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a but detection device of split is provided for solve foretell technical problem.

The utility model provides a technical scheme that above-mentioned technical problem adopted is: a detachable detection device comprises a first cavity, a second cavity and a third cavity, wherein the first cavity is positioned in a cup body and is used for collecting a sample; a second chamber located within the sample vial; a first passage for communicating the first chamber and the second chamber; and the movable sealing element realizes a communication state and a non-communication state between the first cavity and the second cavity through the movement of the sealing element.

Further, the sealing element comprises two working positions: the sealing element is inserted into the first channel when the sealing element is in the first working position, and the first cavity and the second cavity are in a non-communication state; when the sealing element is in the second working position, the sealing element is separated from the first channel, and the first cavity is communicated with the second cavity.

Further, the detection device comprises two working states: right side up and upside down.

Further, when the detection device is in a positive state, the second cavity is positioned above the first cavity; when the detection device is in an inverted state, the first cavity is positioned above the second cavity.

Further, the sample bottle is detachable, and when the sample bottle is detached, the first cavity is separated from the second cavity.

Further, the sealing element is detachable.

Furthermore, the cup also comprises a first cover body, the first cover body is detachably connected with the cup body, and the space formed by assembling the first cover body and the cup body together is a second cavity.

Further, the first channel is arranged on the first cover body.

Further, first lid detachably connected has the sample bottle, and the sample bottle includes the bottleneck, and first passageway extends into in the bottleneck.

Furthermore, the cup also comprises a second cover body, the sealing element is connected with the second cover body, and the second cover body is detachably connected with the cup body.

Furthermore, the sealing element is conical, and a sealing ring is arranged on the sealing element.

Further, the sealing element is hollow inside, and holes are formed in the surface of the sealing element.

Furthermore, a second channel is arranged in the first cavity, a rod body is arranged on the second cover body, and the rod body penetrates through the second channel to be connected with the sealing element.

Furthermore, the sample bottle cover further comprises a third cover body, the third cover body is detachably connected with the first cover body, the third cover body is detachably connected with the sample bottle, and the sample bottle is wrapped in a space formed by assembling the third cover body and the first cover body together.

The utility model has the advantages that: the utility model discloses a detection device still has the function that is used for the secondary detection in collecting, detecting the sample in the sample bottle on the basis function of collecting, detecting the sample, and the sample bottle can be dismantled from the detection device inside alone, therefore the sample in the sample bottle must not receive the influence of test element in the detection device, guarantees to keep the purity of appearance; by quantifying the volume of the sample bottle, the volume of the collected sample can be accurately controlled, the subsequent secondary quantitative detection is facilitated, the obtained detection result is real and reliable, and the accuracy is high; furthermore, the utility model discloses detection device design is exquisite, and application method is simple, the processing ease.

Drawings

FIG. 1 is a schematic view of the overall structure of a detachable detecting unit;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is an exploded view of FIG. 1;

FIG. 4 is a schematic view of the connection between the third cap, the sample bottle, the first cap and the cup body;

FIG. 5 is a schematic view of the introduction of a sample into the cup body;

FIG. 6 is a schematic view of the detection device when inverted;

FIG. 7 is a cross-sectional view of FIG. 6;

FIG. 8 is a schematic view of the detecting device of FIG. 6 after the second cover is opened;

FIG. 9 is a cross-sectional view of FIG. 8;

FIG. 10 is a schematic view of the detecting device of FIG. 6 after the third cover is opened;

FIG. 11 is a schematic view in another orientation of FIG. 10;

FIG. 12 is a schematic view of the overall structure of the sample vial after it has been removed from the test device.

Detailed Description

The structures referred to in the present invention or these terms of art used are further described below, and if not otherwise indicated, they are understood and explained by general terms commonly used in the art.

Detection of

Detection refers to assaying or testing for the presence of a substance or material, such as, but not limited to, a chemical, organic compound, inorganic compound, metabolic product, drug or drug metabolite, organic tissue or a metabolite of organic tissue, nucleic acid, protein, or polymer. In addition, detection indicates the amount of the test substance or material. Further, the assay means immunodetection, chemical detection, enzyme detection, and the like.

Sample(s)

The test device or collected sample of the present invention comprises a biological fluid (e.g., a medical fluid or a clinical sample). Liquid or liquid samples, or fluid samples, may be derived from solid or semi-solid samples, including fecal, biological tissue and food samples. The solid or semi-solid sample may be converted to a liquid sample by any suitable method, such as mixing, triturating, macerating, incubating, dissolving, or enzymatically digesting a solid sample in a suitable solution (e.g., water, phosphate solution, or other buffered solution). "biological samples" include samples derived from animals, plants and food, including, for example, urine, saliva, blood and components thereof, spinal fluid, vaginal secretions, sperm, feces, sweat, secretions, tissues, organs, tumors, cultures, cell cultures and media of tissues and organs derived from humans or animals. Preferably, the biological sample is urine and preferably, the biological sample is saliva. Food samples include food processing materials, end products, meat, cheese, wine, milk and drinking water. Plant samples include those derived from any plant, plant tissue, plant cell culture and medium. An "environmental sample" is derived from the environment (e.g., a liquid sample from a lake or other body of water, a sewage sample, a soil sample, groundwater, seawater, and a waste liquid sample). Environmental samples may also include sewage or other wastewater.

Test element

The term "test element" as used herein refers to an element that can detect whether a sample or specimen contains an analyte of interest, and the detection can be based on any technical principles, such as immunology, chemistry, electricity, optics, molecular, nucleic acid, physics, etc. The test element may be a lateral flow test strip which detects a plurality of analytes. Of course, other suitable test elements may be used with the present invention.

Various test elements may be combined and used in the present invention. One form is a test strip. Test strips for the analysis of analytes, such as drugs or metabolites indicative of a physical condition, in a sample may be in various forms, such as immunoassay or chemical assay forms. The test strip may be used in a non-competitive or competitive assay format. The test strip generally comprises a bibulous material having a sample application area, a reagent area, and a test area. The sample is added to the sample application zone and flows by capillary action to the reagent zone. In the reagent zone, the sample binds to the reagent if the analyte is present. The sample then continues to flow to the detection zone. Other reagents, such as molecules that specifically bind to the analyte, are immobilized at the detection zone. These reagents react with the analyte (if present) in the sample and bind the analyte to the zone, or to one of the reagents of the reagent zone. The label for indicating the detection signal is present in the reagent zone or in a separate label zone.

A typical non-competitive assay format is one in which a signal is generated if the sample contains the analyte and no signal is generated if the analyte is not present. In a competition method, a signal is generated if the analyte is not present in the sample and no signal is generated if the analyte is present.

The test element can be a test paper, and can be made of water-absorbing or non-water-absorbing materials. The test strip may include a variety of materials for liquid sample delivery. One of the test strips may be coated with another material, such as a nitrocellulose membrane coated with filter paper. One region of the test strip may be selected from one or more materials and another region may be selected from a different one or more materials. The test strip may be adhered to some support or hard surface for improved strength when the test strip is held in place.

The analyte is detected by a signal producing system, such as one or more enzymes that specifically react with the analyte, and one or more compositions of the signal producing system are immobilized on the analyte detection zone of the test strip by a method such as that described above for the immobilization of a specific binding substance on the test strip. The signal-producing substance can be on the sample addition zone, reagent zone, or detection zone, or the entire test strip, and the substance can be impregnated on one or more materials of the test strip. A solution containing the signal is applied to the surface of the strip or one or more materials of the strip are immersed in the solution containing the signal. The strip to which the solution containing the signal substance was added was dried.

The various regions of the test strip may be arranged as follows: the device comprises a sample adding area, a reagent area, a detection area, a control area, a sample adulteration area and a liquid sample absorption area. The control zone is located behind the detection zone. All zones may be arranged on a strip of test paper using only one material. It is also possible to use different materials for the different zones. The zones may be in direct contact with the liquid sample, or different zones may be arranged according to the direction of flow of the liquid sample, with the ends of each zone being contiguous with and overlapping the ends of the other zone. The material used can be a material with good water absorption such as filter paper, glass fiber or nitrocellulose membrane. The test strip may take other forms.

A commonly used reagent strip is a nitrocellulose membrane reagent strip, i.e., a detection area comprises a nitrocellulose membrane, and a specific binding molecule is fixed on the nitrocellulose membrane to display the detection result; and may be a cellulose acetate film, a nylon film, or the like. Such as the reagent strips or devices containing the reagent strips described in some of the following patents: US 4857453; US 5073484; US 5119831; US 5185127; US 5275785; US 5416000; US 5504013; US 5602040; US 5622871; US 5654162; US 5656503; US 5686315; US 5766961; US 5770460; US 5916815; US 5976895; US 6248598; US 6140136; US 6187269; US 6187598; US 6228660; US 6235241; US 6306642; US 6352862; US 6372515; US 6379620; and US 6403383. The test strip disclosed in the above patent documents and similar devices with test strips can be applied to the test element or the test device of the present invention for detecting an analyte, such as an analyte in a sample.

The test strips used in the present invention may be so-called Lateral flow test strips (Lateral flow test strips), and the specific structure and detection principle of these test strips are well known in the art. A typical test strip comprises a sample collection area or application area, a labeling area comprising a label pad, a detection area comprising a bibulous pad, and a bibulous area comprising the necessary chemicals to detect the presence of the analyte, such as immunological or enzymatic reagents. A commonly used detection reagent strip is a nitrocellulose membrane reagent strip, that is, a detection area comprises a nitrocellulose membrane, and a specific binding molecule is fixed on the nitrocellulose membrane to display a detection result; it may be a cellulose acetate film, a nylon film, etc., and it may also include a detection result control region downstream of the detection region, and usually, the control region and the detection region are in the form of a transverse line, which is a detection line or a control line. Such test strips are conventional, but other types of test strips that utilize capillary action for testing are also contemplated. In addition, typically, the test strip has a dry chemical reagent component, such as an immobilized antibody or other reagent, which when exposed to a liquid, flows along the test strip by capillary action, and as it flows, the dry reagent component is dissolved in the liquid, and the next zone is processed to react the dry reagent in that zone, thereby performing the necessary test. The liquid flow is mainly by capillary action. The present invention can be applied to a test device, or a device disposed in the first chamber to contact the liquid sample, or to detect the presence or quantity of the analyte in the liquid sample entering the first chamber.

Analyte substance

Examples of analytes that can be used in the present invention include small molecule substances, including drugs of abuse (e.g., drugs of abuse). By "drug of abuse" (DOA) is meant the use of a drug (usually acting to paralyze nerves) at a non-medical destination. Abuse of these drugs can result in physical and mental damage, dependence, addiction and/or death. Examples of drug abuse include cocaine; amphetamine AMP (e.g., black americane, white amphetamine tablets, dextroamphetamine tablets, Beans); methamphetamine MET (crank, methamphetamine, crystal, speed); barbiturate BAR (e.g., Valium, Roche Pharmaceuticals, Nutley, New Jersey); sedatives (i.e., sleep-aid drugs); lysergic acid diethylamide (LSD); inhibitors (downs, goofballs, barbs, blue devils, yellow jacks, hypnones); tricyclic antidepressants (TCAs, i.e., imipramine, amitriptyline and doxepin); dimethyldioxymethylaniline MDMA; phencyclidine (PCP); tetrahydrocannabinol (THC, pot, dope, hash, weed, etc.); opiates (i.e. morphine MOP or, opiates, cocaine COC, heroin, dihydrocodeinone); anxiolytic and sedative hypnotic, anxiolytic is a kind of mainly used for relieving anxiety, stress, fear, stabilize mood, have hypnotic sedative effects at the same time, including benzodiazepine BZO (benzodiazepines), atypical BZ, fuse dinitrogen NB23C, benzodiazepine, BZ receptor ligand, ring-opening BZ, diphenylmethane derivatives, piperazine carboxylate, piperidine carboxylate, quinazolone, thiazine and thiazole derivatives, other heterocycles, imidazole type sedative/analgesic (such as dihydrocodeinone OXY, methadone MTD), propylene glycol derivative-carbamate, aliphatic compound, anthracene derivatives, etc.. The detection kit of the utility model can also be used for detecting the detection which belongs to the medical application and is easy to take excessive medicine, such as tricyclic antidepressant (imipramine or analogue), acetaminophen, etc. After being absorbed by human body, the medicines are metabolized into small molecular substances, and the small molecular substances exist in body fluids such as blood, urine, saliva, sweat and the like or exist in partial body fluids.

For example, analytes detected by the present invention include, but are not limited to, creatinine, bilirubin, nitrite, protein (non-specific), hormones (e.g., human chorionic gonadotropin, progesterone hormone, follicle stimulating hormone, etc.), blood, leukocytes, sugars, heavy metals or toxins, bacterial material (e.g., proteins or carbohydrate material directed against specific bacteria, such as, for example, Escherichia coli 0157: H7, staphylococci, Salmonella, Clostridium, Campylobacter, L.monocytogenes, Vibrio, or Cactus), and substances associated with physiological characteristics in urine samples, such as pH and specific gravity. Any other clinical urine chemical analysis can all utilize the cooperation of side direction crossing current detection form the utility model discloses the device detects.

Cup body and first cup cover

Referring to fig. 1-3, a detachable detection device includes a cup body 10 and a first cover 20, the first cover 20 is used for covering the cup body 10, a first cavity 11 is formed in the cup body 10, the first cavity 11 includes a first opening, the first cavity 11 can also be referred to as a detection cavity for detecting an analyte in a sample, and when the first cover 20 covers the cup body 10, the first cavity 11 is sealed to prevent the sample from leaking. Specifically, the cup body 10 is connected with the first lid 20 in a threaded manner, the first cover 20 is provided with a first retaining buckle 21, the cup body 10 is provided with a second retaining buckle 22, when the cup body 10 and the first lid 20 are screwed up right, the first cavity 11 is sealed, the first retaining buckle 21 abuts against the second retaining buckle 22, the cup body 10 and the first lid 20 cannot be screwed up again, the design is to avoid the excessive tightening of the cup body 10 and the first lid 20 caused by the continuous screwing up, and unnecessary troubles are brought to the subsequent detection of opening the first lid 20.

Preferably, the first cover 20 is provided with a mark 23, and the mark 23 helps an operator to distinguish the screwing direction of the first cover 20.

Cup body and sample bottle

Referring to fig. 2-4, the detecting device further includes a sample bottle 30, a second cavity 31 is provided in the sample bottle 30, the second cavity 31 may also be referred to as a liquid storage cavity, and the second cavity 31 is communicated with the first cavity 11, and a part of the sample enters the second cavity for a second detection. Specifically, referring to fig. 2 and 6, the detecting device includes two working states: right side up and down, fig. 2 for right side up and fig. 6 for upside down, the second chamber 31 comprises a second opening, the first opening being in a direction opposite to the second opening. When the detection device is in the upright state, the second cavity 31 is located at the upper side position of the first cavity 11, and under the condition that the sample does not need to be kept, the sample in the first cavity 11 cannot enter the second cavity 31 under the action of gravity, so that the sample bottle 30 is prevented from being polluted. When the detection device is in an inverted state, the second cavity 31 is located at the lower side position of the first cavity 11, and if the first cavity 11 is communicated with the second cavity 31 at the moment, the sample in the first cavity 11 can enter the second cavity 31 through the communication part to be reserved.

Referring to fig. 2, a first channel 24 is formed on a first cover body 20 of the detection device, the first channel 24 is in a hollow cylindrical shape, the first cover body 20 is detachably connected with a sample bottle 30, the sample bottle 30 includes a bottle opening 33, and the first channel 24 extends into the bottle opening 33 so that the first opening is opposite to the second opening. In order to prevent the sample bottle 30 from being exposed to the outside and to fix the sample bottle 30, it is preferable that the detecting device further includes a third cover 40, and the third cover 40 is detachably connected to the first cover 20, for example, by screwing. Space formed by assembling the third cover 40 and the first cover 20: the third chamber 41, the third chamber 41 wraps the sample bottle 30, a fixing buckle 49 is arranged in the third cover body 40, and the fixing buckle 49 is used for fixing the sample bottle 30. Specifically, the outline of the body of the sample bottle 30 is square, a circle of annular recesses 32 are formed in the body, four fixing buckles 49 are arranged and distributed in a square shape, protruding strips 42 are arranged on the fixing buckles 49, and the sample bottle 30 is detachably connected to the third cover body 40 through the fixing buckles 49 and the protruding strips 42, so that the third cover body 40 and the sample bottle 30 are detachably connected.

The sample bottle 30 is detachably connected to the first cover 20 and the third cover 40, and when the sample bottle 30 is detached, the first cavity 11 is separated from the second cavity 31. Carry out alone sealed to sample bottle 30 after breaking away from in order to realize, the bottleneck 33 position of sample bottle 30 is equipped with spiral 34, be equipped with vacancy groove 27 on the third lid 40, be equipped with hollow spliced pole 25 in the vacancy groove 27, the cover is equipped with bottle lid 26 on the spliced pole 25, bottle lid 26 is difficult for droing on spliced pole 25, the operator can stretch into vacancy groove 27 through the finger and take out bottle lid 26, bottle lid 26 is connected with the spiral 34 spiral cooperation of bottleneck 33, like this when sample bottle 30 pulls down, can seal sample bottle 30, avoid the sample of reserving in the second chamber 31 to receive the pollution, second chamber 31 is independent of outside the device this moment, can preserve alone.

Sealing element between cup body and sample bottle

In the above-mentioned connection manner of the cup body 10 and the sample bottle 30, the first channel 24 enables the first cavity 11 in the cup body 10 to be always communicated with the second cavity 31 in the sample 30, that is, the sample in the first cavity 11 is always communicated with the sample in the second cavity 31. If the operator wants to leave the sample, he simply turns the testing device upside down and waits for a while (typically one second to ten seconds, not more than thirty seconds), at which point the sample will enter the second chamber 31 through the first channel 24 under the influence of gravity, completing the sample retention. It should be noted that this case also presents a new technical problem, since the second opening of the second chamber 31 is opposite to the first opening: if the third cover 40 is opened to take out the sample bottle 30 when the detection device is turned upside down, the sample in the first cavity 11 will continuously leak out from the first channel 24 when the sample bottle 30 is taken out because the first opening of the first cavity 11 is facing downwards; if the third cover 40 is opened to take out the sample bottle 30 under the condition that the detecting device is upright, the first opening of the first cavity 11 is upward, although the sample in the first cavity 11 cannot leak, because the second opening of the sample bottle 30 is downward, the sample in the second cavity 31 can flow into the first cavity 11 again under the action of gravity, so that the retained sample is insufficient, and meanwhile, an operator needs to rapidly turn over the sample bottle 30 after taking off the sample bottle 30 to enable the second opening to be upward, and in the process, the sample in the second cavity 31 can be spilled again. Therefore, it is necessary to provide a sealing element 50 between the cup body 10 and the sample bottle 30 for controlling the communication relationship between the first chamber 11 and the second chamber 31, so as to allow the first chamber 11 to communicate with the second chamber 31 when a sample is retained, and to separate the first chamber 11 from the second chamber 31 when the sample bottle 30 is removed.

Preferably, with reference to the figures, the sealing element 50 comprises two operating positions: a first working position and a second working position, when the sealing element 50 is in the first working position, the sealing element 50 is inserted in the first passage 24, the first chamber 11 and the second chamber 31 are in a non-communicating state; when the sealing element 50 is in the second working position, the sealing element 50 is separated from the first passage 24 and the first chamber 11 is in communication with the second chamber 31. Specifically, the detecting device further includes a second cover 60, the sealing element 50 is connected to the second cover 60, and the second cover 60 is detachably connected to the cup body 10. Referring to fig. 2, when the detecting device is in the upright position, since the upper side of the cup body 10 is already provided with the first opening for connecting the first cover 20, there is not enough space on the upper side of the cup body 10, in the simplest way, the second cover 60 is arranged on the lower side portion of the cup body 10, further, the cup body 10 is provided with the third opening 12 at the lower side of the first cavity 11, the third opening 12 is detachably connected with the second cover 60, since the sealing element 50 is arranged in the first cavity 11 and the second cover 60 is arranged outside the first cavity 11, in order to enable the second cover 60 to drive the sealing element 50 to move, the first cavity 11 is provided with the second channel 13 at the side close to the third opening 12, the second cover 60 is provided with the rod 61, the rod 61 passes through the second channel 13 to connect the sealing element 50, it should be noted that the contact position of the rod 61 and the second channel 13 needs to be kept sealed, which would otherwise cause problems with leakage of the sample in the first chamber 11. Preferably, the second channel 13 is provided with a first annular protrusion 14, the first annular protrusion 14 can make the second channel 13 contact with the rod 61 more tightly, and further, the second channel 13 is provided with an upper first annular protrusion 14 and a lower first annular protrusion 14. Likewise, a sealing element 50 is required to seal the first passage 24, and two second annular protrusions 52 are provided on the sealing element 50. The first annular protrusion 14 and the second annular protrusion 52 are used for enhancing the sealing effect, but the first annular protrusion 14 and the second annular protrusion 52 have a difference, and the first annular protrusion 14 is arranged on the inner surface of the second channel 13, so that the arrangement is relatively difficult and the installation is not easy; and the second annular bulge 52 is positioned on the outer surface of the sealing element 50, so that the arrangement is easy and the installation is simple and convenient. Preferably, annular grooves are formed in both the inner surface of the second channel 13 and the outer surface of the sealing element 50, and the first annular protrusion 14 and the second annular protrusion 52 are sealing rings made of silicone rubber or rubber, so as to improve the sealing performance of the sealing position. An alternative solution is also provided here: the first circular ring bulge 14 and the second channel 13 are made of the same material, and the first circular ring bulge 14 and the second channel 13 are integrally formed, so that the problem that the first circular ring bulge 14 is difficult to install in the second channel 13 can be solved. The movement of the sealing member 50 can be controlled by controlling the movement of the second cover 50, and the movement of the sealing member 50 controls the switching of the communicating state and the non-communicating state of the first chamber 11 and the second chamber 31.

The utility model provides a detection device combines below to give a supporting equipment, application method to combine operation flow, solve the problem that detection device in use can meet, and provide the improvement of some detail structures. First, the detection device is assembled, and referring to fig. 2, an operator first screws the first cover 20 and the cup body 10 together, and when the first stopper 21 abuts against the second stopper 22, the first cover 20 is completely installed. The sealing element 50 is then assembled with the rod 61 of the second cover 60 to complete the fixing of the sealing element 50, and the connection relationship between the sealing element 50 and the rod 60 may be screw-fit or plug-fit. The rod 61 is inserted through the second channel 13, so that the second cover 60 is connected to the cup body 10, and the second cover 60 and the cup body 10 can be screwed or inserted. When the second cover body 60 covers the third opening 12 of the cup body 10, the sealing element 50 on the second cover body 60 seals the first channel 24 of the first cover body 20. Then, the sample bottle 30 is attached to the third cover 40 by the fixing fastener 49, the bottle opening 33 of the sample bottle 30 is aligned and inserted into the first channel 24, and the third cover 40 is screwed, thereby completing the assembly of the detecting apparatus.

In order to facilitate the entry of the sealing element 50 connected to the rod 61 into the first passage 24 during the above assembly process, the sealing element 50 is preferably tapered, and the tapered sealing element 50 has a guiding function when entering into the first passage 24.

The method of use is described in detail below: referring to fig. 5-12, the sampling operation is accomplished by unscrewing the first cap 20, adding the sample to the first chamber 11, and closing the first cap 20. The detection device is inverted to locate the second cavity 31 at the lower side of the first cavity 11, the second cover 60 is opened, the second cover 60 drives the sealing element 50 to be separated from the first channel 24 through the rod 61, at this time, the first cavity 11 and the second cavity 31 are in a communication state, the sample flows into the second cavity 31 through the first channel 24 under the action of gravity, waiting for a while, after the sample is collected by the sample bottle 30, the second cover 60 is covered with the cup body 10 again, at this time, the sealing element 50 is moved into the first channel 24, the first cavity 11 and the second cavity 31 are in a non-communication state, the operator unscrews the third cover 40, the third cover 40 drives the sample bottle 30 to leave the cup body 10 together, because the sealing element 50 seals the first channel 24 at this time, the sample cannot leak out of the first channel 24, the operator stretches into the bottle cap 27 through fingers to take out the bottle cap 26, and then connects the bottle 26 with the spiral 34 of the bottle opening 33 in a spiral matching manner, the sample bottle 30 is sealed, the sample bottle 30 is taken out from the third cover body 40, the third cover body 40 is fixed to the cup body 10 independently, and the detection device is turned over, so that the sample is reserved and taken out.

In the use of the above-mentioned detection device, there is a one-step operation of opening the second cover 60, and the second cover 60 drives the sealing element 50 to be separated from the first channel 24 through the rod 61, and in this process, because the sample exists in the first cavity 11, in order to avoid the sample in the device from shaking violently, the second cover 60 and the cup body 10 are preferably connected in a screw-type manner, not in a plug-in type manner. A screw-on connection has the advantage that: the second cover body 60 is more stable when separated from the cup body 10; the plug-in connection has a large shaking moment when the second cover 60 is separated from the cup body 10, which may cause the sample to be spilled.

There is also the further operation of "after the sample is collected in the sample bottle 30, moving the sealing member 50 into the first passage 24 again" since when the sample bottle 30 is full, the first passage 24 is full of sample, if the sealing member 50 is to enter the first passage 24 at this time, it is difficult because the space is already occupied, preferably, the sealing member 50 is conical and has a hole 51 on its conical surface, the sealing member 50 is hollow inside, such design that when the sealing member 50 is inserted into the first passage 24, a part of the sample in the first passage 24 enters into the sealing member 50 from the hole 51, and the part of the sample exits to provide a space for the entrance of the sealing member 50, and further, in order to make the space for the entered sample enough, the rod 61 is hollow inside.

Preferably, the bottle cap 26 is fixed on the second cover body 60 by the similar technical solution as described above (the bottle cap 26 is fixed on the third cover body 40), which is helpful for an operator to remove the bottle cap 26 to seal the sample bottle 30 when the detection device is in the upside-down state, and it should be noted that the second cover body 40 needs to be designed slightly larger at this time, so that the bottle cap 26 is embedded in the second cover body 40, and the bottle cap 26 is prevented from affecting the placement stability when the detection device is in the upright state.

The above description is only the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of by the creative work or some simple changes of the operation flow are all covered within the protection scope of the present invention, therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

The utility model shown and described herein may be implemented in the absence of any element, limitation, or limitations specifically disclosed herein. The terms and expressions which have been employed are used as terms of description and not of limitation, and there is no intention in the use of such terms and expressions of excluding any equivalents of the features shown and described or portions thereof, and it is recognized that various modifications are possible within the scope of the invention. It should therefore be understood that although the present invention has been specifically disclosed by various embodiments and optional features, modification and variation of the concepts herein described may be resorted to by those skilled in the art, and that such modifications and variations are considered to be within the scope of this invention as defined by the appended claims.

The contents of the articles, patents, patent applications, and all other documents and electronically available information described or cited herein are hereby incorporated by reference in their entirety to the same extent as if each individual publication was specifically and individually indicated to be incorporated by reference. Applicants reserve the right to incorporate into this application any and all materials and information from any such articles, patents, patent applications, or other documents.

Claims (13)

1. A detachable detection device is characterized by comprising a first cavity, a second cavity and a third cavity, wherein the first cavity is positioned in a cup body and used for collecting a sample; a second chamber located within the sample vial; a first passage for communicating the first chamber and the second chamber; the movable sealing element is used for realizing the communication state and the non-communication state between the first cavity and the second cavity through the movement of the sealing element;

wherein, detection device includes two operating condition: right side up and upside down.

2. A detachable testing device according to claim 1, wherein the sealing member comprises two operative positions: the sealing element is inserted into the first channel when the sealing element is in the first working position, and the first cavity and the second cavity are in a non-communication state; when the sealing element is in the second working position, the sealing element is separated from the first channel, and the first cavity is communicated with the second cavity.

3. A detachable test device according to claim 2, wherein the second chamber is located above the first chamber when the test device is in the upright position; when the detection device is in an inverted state, the first cavity is positioned above the second cavity.

4. A detachable assay device according to claim 1 wherein the sample vial is detachable and the first chamber is detached from the second chamber when the sample vial is detached.

5. A detachable testing device according to claim 1, wherein the sealing member is detachable.

6. The detachable detection device of claim 1, further comprising a first cover, wherein the first cover is detachably connected to the cup body, and a space formed by the first cover and the cup body assembled together is a second cavity.

7. A detachable assay device according to claim 6 wherein the first channel is provided on the first cover.

8. The detachable testing device of claim 7, wherein the first cap is detachably connected to a sample bottle, the sample bottle including a bottle opening, and the first channel extends into the bottle opening.

9. A detachable assay device according to claim 1 further comprising a second cover, the sealing member being attached to the second cover, the second cover being detachably connected to the cup body.

10. A detachable assay device according to claim 1 wherein the sealing member is conical and the sealing member has a sealing ring mounted thereon.

11. A detachable assay device according to claim 1 wherein the interior of the sealing member is hollow and the surface of the sealing member is provided with holes.

12. A detachable assay device according to claim 9 wherein the first chamber has a second channel therein and the second cover has a rod which passes through the second channel to engage the sealing member.

13. A detachable testing device according to claim 6, further comprising a third cover detachably connected to the first cover, the third cover detachably connected to the sample bottle, and the sample bottle is enclosed by the space formed by the third cover and the first cover.

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