A detection device

Abstract

The present invention discloses a detection device, which includes a cup body. A first channel is provided in the cup body. The first channel includes a sample inlet and two sample outlets for sample outflow. Two separated chambers are also provided in the cup body, namely a first chamber and a second chamber. The first chamber is configured to receive and detect the sample flowing out from the sample outlet, and the second chamber is configured to receive the sample flowing out from the sample outlet. The first chamber and the second chamber can be closed and communicated with each other. The device of the present invention can not only instantaneously detect the abused drugs in the sample, but also collect and preserve the sample for secondary confirmation testing in the laboratory and / or for DNA testing to confirm whether there is drug abuse and to confirm the sample provider. The above-mentioned detected samples all come from the same sample, ensuring the accuracy of the results and reducing errors. Using this device for the detection of abused drugs is simple in operation and high in accuracy.

Description

Technical Field

[0001] The present invention specifically relates to a detection device. Background Art

[0002] In order to combat the social problem of drug abuse, drug tests are conducted in various industries such as employment, education, sports, law enforcement, and healthcare. Drug tests usually require collecting a test sample first and then conducting the test.

[0003] Currently, for the detection of samples on the market, generally a test strip is used for point-of-care testing, which can obtain the test result quickly. The test result may be positive, negative, or invalid. Such a detection method is simple, low-cost, and easy to operate. However, this detection method has some drawbacks. For example, (1) compared with the accurate testing in the laboratory, the accuracy of the point-of-care test strip test result is low and the test result is untrustworthy; false positives, false negatives, or invalid results may occur. Even when using the best-quality test strips, the above phenomena will occur. The reasons for the above results may be that the sample is dirty, or the chemicals used have deteriorated, or the conditions of the sample itself are not suitable for point-of-care testing, etc.; (2) when a positive result appears, the sample provider usually argues that this sample is not theirs. They require proof that this sample is theirs, which requires DNA testing. However, for DNA testing, a new sample needs to be collected because the original sample may have deteriorated or been contaminated and is not suitable for DNA testing. However, the newly collected sample is not the same as the previous sample, and the sample provider will not be convinced, resulting in continued disputes.

[0004] Another detection method is not to conduct point-of-care testing on the sample, but only to use a sample collection device to collect the sample, and then send the sample to the laboratory for testing. This detection method cannot quickly obtain a preliminary test result.

[0005] Another detection method is to first use a test strip for point-of-care testing. When a false positive occurs, then collect a sample and send the sample to the laboratory for confirmatory testing. Laboratory testing is usually more accurate, and laboratory testing can also perform quantitative testing to give the content of the abused drug in the sample. However, this detection method requires collecting a new sample. The newly collected sample is not the same as the previous sample. Moreover, a series of supervision and monitoring are required for the sample collection and testing processes. It also requires the collector to honestly and reliably confirm the identity of the sample provider without mistakes or confusion in the identity of the sample provider. During the process of transporting the sample to the laboratory and during the process of testing the sample in the laboratory, it is necessary to ensure that the sample is not damaged or contaminated.

[0006] Currently, some detection devices cannot store the collected samples for subsequent confirmation tests or DNA tests after obtaining the initial results. It is difficult to extract samples from many other sample collection and testing devices for secondary detection. There are also some detection devices that are very complex in their design and manufacturing and require the use of rather expensive materials. Summary of the Invention

[0007] In view of the above situation, to overcome the defects of the prior art, the present invention provides a detection device.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A detection device includes a cup body. A first channel is provided inside the cup body. The first channel includes a sample inlet and two sample outlets for sample outflow. Two separated chambers are also provided inside the cup body, namely a first chamber and a second chamber. The first chamber is configured to receive and detect the sample flowing out from the sample outlet, and the second chamber is configured to receive the sample flowing out from the sample outlet. The first chamber and the second chamber can be closed and communicated with each other.

[0010] Furthermore, a piston is included. The piston can enter the first channel to cut off the communication between the first chamber and the second chamber.

[0011] Furthermore, the piston is provided with a groove.

[0012] Furthermore, a cup cover is included. The cup cover is connected to the cup body in a snap-fit manner.

[0013] Furthermore, the first channel is fixedly connected to the cup cover, and a first channel inlet is provided on the cup cover.

[0014] Furthermore, a pit is provided on the cup cover, and the first channel inlet is located in the pit.

[0015] Furthermore, a first opening and a second opening are also provided in the pit. The first opening is communicated with the first chamber, and the second opening is communicated with the second chamber.

[0016] Furthermore, a second channel is provided on the bottom surface of the cup body. The piston can move in the second channel.

[0017] Furthermore, a cross beam is provided in the second channel. The cross beam is fixedly connected to the second channel, and a convex block is connected to the cross beam.

[0018] Furthermore, the detection device also includes a sample collector, which includes a collection element, a connecting rod, and a connecting head. The connecting head is connected to one end of the connecting rod, and the collection element is connected to the other end of the connecting rod.

[0019] Furthermore, a first sealing ring is connected to the collection element.

[0020] Furthermore, the outer wall of the connecting head is provided with at least two circles of protrusions or an external thread, and the upper end of the connecting head is provided with an inlet.

[0021] Furthermore, the bottom surface of the connecting head is provided with a third opening and a fourth opening, and the positions of the third opening and the fourth opening respectively correspond to the first opening and the second opening.

[0022] Furthermore, the bottom surface of the connecting head has a tip, and the height of the tip is lower than the height of the outer wall of the connecting head.

[0023] Furthermore, the detection device further includes a connecting cap, and the connecting cap can be snap-connected or thread-connected to the connecting head.

[0024] Furthermore, the connecting cap has two cavities, namely an inner cavity and an outer cavity; the inner cavity is configured to place a buffer reagent or a buffer reagent holding device, and the side wall of the outer cavity is provided with a hook or an internal thread.

[0025] The beneficial effects of the present invention are as follows:

[0026] The device of the present invention diverts the sample into different cavities, and the piston can cut off the communication between the first cavity and the second cavity. The device of the present invention can not only instantaneously detect the abused drugs in the sample, but also collect and preserve the sample for secondary confirmation testing in the laboratory and / or for DNA testing to confirm whether there is drug abuse and to confirm the sample provider. The above-mentioned test samples all come from the same sample, ensuring the accuracy of the results and reducing errors. Using this device to detect abused drugs is simple in operation and high in accuracy. Description of the Drawings

[0027] Figure 1 is the structural schematic diagram of the device of the present invention.

[0028] Figure 2 is the exploded view of the device of the present invention.

[0029] Figure 3 is the exploded view of the cup body and the cup cover (in order to show the internal structure of the cup body, part of the cup body is hidden).

[0030] Figure 4 is Figure 2 the cross-sectional view of

[0031] Figure 5 is the structural schematic diagram of the first channel and the cup cover connected together.

[0032] Figure 6 is the cross-sectional view of the device of the present invention in the state of collecting the sample.

[0033] Figure 7A cross-sectional view of the device of the present invention when the connection between the first chamber and the second chamber is blocked. Detailed implementation manners

[0034] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings. It should be noted that the detailed implementation manners are only a detailed description of the present invention and should not be regarded as a limitation of the present invention.

[0035] As Figure 1-7 shown, a detection device includes a cup body 3. A first channel 4 is provided in the cup body 3. The first channel 4 includes a sample inlet 10 and two sample outlets 5 for sample outflow. Two separated chambers are also provided in the cup body, namely a first chamber 1 and a second chamber 2. The first chamber 1 is configured to receive and detect the sample flowing out from the sample outlet, and the second chamber 2 is configured to receive the sample flowing out from the sample outlet. The first chamber 1 and the second chamber 2 can be closed and connected to each other.

[0036] In some preferred ways, a partition 31 is provided in the cup body 3, and the first channel is fixedly connected to the partition 31. In some preferred ways, as Figure 3 shown, a chute 32 is provided outside the first channel, and the chute 32 is slidably connected to the partition 31 to fix the first channel in the cup body 3.

[0037] In some preferred ways, at least one detection element is placed in the first chamber 1. The detection element is used to detect the presence or quantity of an analyte in the sample, so as to realize real-time detection of the sample and obtain a detection result. In some preferred ways, the detection element can be arranged on the inner wall of the side surface of the first chamber 1. In some preferred ways, a placement component for placing the detection element is further provided on the inner wall of the side surface of the first chamber 1. The detection element can be placed in the placement component. The placement component and the inner wall of the side surface of the first chamber 1 can be fixedly connected, or can be detachably connected, such as the cooperation of an insertion plate and a slot. The placement component can be in the form of an insertion plate, and a slot is provided on the inner wall of the side surface of the first chamber 1. In some preferred ways, a clamping groove 6 can be provided on the placement component, and the detection element can be placed in the clamping groove 6.

[0038] In some preferred embodiments, the "detection element" can be any test device that provides a test result. In some embodiments, the detection element is a test strip. The test strip can have specific binding molecules immobilized thereon and reagents for performing immunoassays. However, in other embodiments, the detection element can also be one containing test reagents based on chemical reactions, biology-based test reagents (such as enzymes or ELISA tests), or fluorescence-based test reagents, etc. Additionally, in some other embodiments, as long as there are some other reagents on the detection element, the reagent can be used to detect the presence or quantity of an analyte in a sample. In one embodiment, the detection element contains reagents for detecting the presence of drugs of abuse. However, in other embodiments, the detection element can be any element that provides an indication of a test result. For example, some chemical or biological indicator reagents can be used.

[0039] The sample to be detected by the present invention can be any fluid sample. Fluid samples suitable for testing using the present invention include oral fluid, saliva, whole blood, serum, plasma, urine, cerebrospinal fluid, biological extracts, mucus, and tissue. "Saliva" refers to the secretions of the salivary glands. "Oral fluid" is any fluid present in the oral cavity. The analyte to be detected can be any analyte for which the detection element is made. In one embodiment, the analyte is a drug of abuse. The analyte of interest can also be hormones, proteins, peptides, nucleic acid molecules, disease agents, and specific binding pair components. "Drug of abuse" (DOA) is a drug used for non-medical purposes (usually for hallucinogenic effects). The abuse of such drugs can lead to physical and mental harm and (in some cases) dependence, addiction, and even death. Examples of DOAs include cocaine, amphetamines (such as black beauties, white bennies, amphetamine tablets, dextroamphetamine drugs, dexies, beans), methamphetamine (crank, methamphetamine, crystal, speed), barbiturates (Roche Pharmaceuticals, Nutley, New Jersey), sedatives (i.e., sleeping pills), lysergic acid diethylamide (LSD), tranquilizers (downers, goofballs, barbs, blue devils, yellow jackets, ludes), tricyclic antidepressants (TCA, such as imipramine, amitriptyline, and doxepin), phencyclidine (PCP), tetrahydrocannabinol, and opiates (such as morphine, opium, codeine, heroin).

[0040] In some preferred embodiments, such as Figure 2-4, as shown in FIGS. 6-7, the detection device of the present invention further includes a piston 7. The piston 7 can enter the first channel 4 and move therein, capable of cutting off the communication between the first chamber 1 and the second chamber 2. After being cut off, the first chamber 1 becomes an independent chamber, which can be used for sample detection, and the second chamber 2 is an independent chamber capable of storing samples for secondary confirmation detection or DNA detection.

[0041] In some preferred embodiments, such as Figure 2-4 shown, the piston 7 is provided with a groove 8 for cooperation with other components. The groove 8 can be of any suitable shape. In this embodiment, the groove 8 is in the shape of a cuboid.

[0042] In some preferred embodiments, such as Figure 1-7 shown, the detection device of the present invention further includes a cup lid 9. The cup lid 9 and the cup body 3 can be fixedly connected. In some other preferred embodiments, the cup lid 9 and the cup body 3 are detachably connected. In this embodiment, as shown in FIGS. 1-7, the cup lid 9 and the cup body 3 are snap-connected, which facilitates the assembly of the device and the separation of the cup lid and the cup body, and is beneficial for taking out the liquid sample in the second chamber for secondary confirmation detection or DNA detection.

[0043] In some preferred embodiments, such as Figure 2-5 shown, the first channel 4 is fixedly connected to the cup lid 9, and the cup lid 9 is provided with a sample inlet 10. After the cup lid is fixed, the first channel is also fixed accordingly.

[0044] In some preferred embodiments, such as Figure 2-7 shown, the cup lid 9 is provided with a pit 11, and the sample inlet 10 is located within the pit 11.

[0045] In some preferred embodiments, such as Figure 2-3 shown, the pit 11 is further provided with a first opening 12 and a second opening 13. The first opening 12 communicates with the first chamber 1, and the second opening 13 communicates with the second chamber 2. The arrangement of the first opening 12 and the second opening 13 enables some functional reagents or other substances to be diverted and enter the first chamber 1 and the second chamber 2 respectively.

[0046] In some preferred embodiments, such as Figure 3-4 shown, the bottom surface of the cup body 3 is provided with a second channel 14, and the piston 7 can move within the second channel 14. In some preferred embodiments, such as Figure 3-4 , as shown in FIGS. 6-7, the central axis of the second channel 14 coincides with that of the first channel 4, which enables the piston 7 to smoothly enter the first channel 4 from the second channel 14, and the piston 7 can seal the bottom surface of the cup body 3 to prevent liquid leakage from the bottom surface of the cup body 3; when a part of the piston 7 enters the first channel 4 and the other part of the piston 7 is in the second channel 14, as Figure 7As shown, the piston 7 can cut off the connection between the first chamber 1 and the second chamber 2. In some preferred ways, such as Figure 6-7 As shown, the second channel 14 has the same size as the first channel 4. In some other preferred ways, the second channel 14 can have a different size from the first channel 4.

[0047] In some preferred ways, such as Figure 3 As shown, a cross beam is provided in the second channel 14. The cross beam is fixedly connected to the second channel 14, and a convex block 15 is connected to the cross beam. The structural dimensions of the convex block 15 match the groove 8 on the piston 7. In some preferred ways, the upper end of the convex block 15 is smaller and the lower end is larger, which is convenient for the diversion of the sample.

[0048] In some preferred ways, such as Figure 2 、 4 As shown, the detection device of the present invention further includes a sample collector, which includes a collection element 16, a connecting rod 17, and a connecting head 18. The connecting head 18 is connected to one end of the connecting rod 17, and the collection element 16 is connected to the other end of the connecting rod 17. The collection element 16 can collect or release a liquid sample. The collection element 16 is fixedly connected to the connecting rod 17, which is convenient for the collection element 16 to collect, transfer, and release the sample. In some preferred ways, the collection element 16 is fixedly connected to the connecting rod 17. The collection element 16 can be adhered or welded to the connecting rod 17 by sealant or hot melt adhesive or other adhesives, or can be connected to the connecting rod 17 by any applicable method. In some other preferred ways, the collection element 16 is detachably connected to the connecting rod 17. In some preferred ways, such as Figure 4 As shown, a first sealing ring 19 is connected to the upper end of the collection element 16. The first sealing ring 19 can seal the first channel 4 to prevent air leakage and liquid leakage and avoid liquid backflow.

[0049] In some preferred ways, the collection element 16 is compressible. A compressible collection element 16 can be used to absorb the liquid sample, and then by squeezing the collection element 16, the collection element 16 releases the sample. Compressible means the material property that the shape of the material can be deformed by mechanical pressure to extrude the liquid from the material while the material holds the liquid. The collection element 16 can be made of any material that absorbs and holds liquid. In some embodiments, the collection element 16 is a sponge, but in other embodiments, it can be non-woven fabric, absorbent paper, nylon, cotton, or any other material that can absorb and hold liquid. When the material of the collection element 16 is a sponge, it can be natural or synthetic. In the shown embodiment, such as Figure 3-5As shown, the collection element 16 is a cylindrical sponge material adapted to be placed in a subject's mouth to collect saliva. However, in other embodiments, the collection element 16 can be of any suitable and convenient shape. In a particular embodiment, the collection element 16 is treated with chemical components (such as citrate or other chemicals) to promote saliva secretion and facilitate absorption by the collection element 16.

[0050] In some preferred ways, as Figure 4 shown, the connector 18 is fixedly connected to one end of the connecting rod 17, and the connecting rod 17 and the connector 18 are connected as a whole. In some preferred ways, as Figure 2 , 4 shown, at least two rings of protrusions 20 are provided on the outer wall of the connector 18 for cooperation with other components and also facilitate the operator's grasping. In some preferred ways, the outer surface of the connector 18 includes at least a first ring of protrusions and a second ring of protrusions, and the first ring of protrusions and the second ring of protrusions are configured for positioning; in some preferred ways, as Figure 4 shown, a second sealing ring 21 is provided at the lower end of the outer surface of the connector 18. In some other preferred ways, an external thread is provided on the outer surface of the connector 18 for cooperation with other components. In some preferred ways, as Figure 4 shown, the connector 18 is barrel-shaped with a hollow interior, and an entrance is provided at the upper end of the connector 18, which is configured to allow other components to enter.

[0051] In some preferred ways, as Figure 4 shown, a third opening 22 and a fourth opening 23 are provided on the bottom surface of the connector 18, and the positions of the third opening 22 and the fourth opening 23 correspond to the first opening 12 and the second opening 13 respectively. The third opening 22 can communicate with the first opening 12, and the fourth opening 23 can communicate with the second opening 13.

[0052] In some preferred ways, as Figure 4 shown, the bottom surface of the connector 18 has a tip 24, and the height of the tip 24 is lower than the height of the outer wall of the connector 18, which can avoid stabbing the operator.

[0053] In some preferred ways, as Figure 4 , Figures 6 - 7 shown, a connection cap 25 is further included, and the connection cap 25 can be detachably connected to the connector 18. In some preferred ways, the connection cap 25 is snap-connected to the connector 18. In some other preferred ways, the connection cap 25 is thread-connected to the connector 18.

[0054] In some preferred embodiments, the connection cap 25 has two cavities, namely the inner cavity 26 and the outer cavity 27; the inner cavity 26 is configured to hold a buffer reagent or a buffer reagent holding device. In some preferred embodiments, the inner cavity 26 is configured to hold a buffer reagent, and the open end of the inner cavity is sealed by a sealing layer, so that the buffer reagent is sealed within the inner cavity. In some preferred embodiments, hooks or internal threads are provided on the inner wall of the outer cavity 27. In this embodiment, as Figure 4 , shown in FIGS. 6-7, hooks 28 are provided on the inner wall of the outer cavity 27, and the hooks 28 can cooperate with the protrusions 20 on the connector 18 to achieve the connection and fixation of the connection cap 25 and the connector 18. In some preferred embodiments, the hook 28 can engage with the first ring of protrusions and be located at the first position 41, as Figure 4 shown, at this time the tip 24 will not pierce the buffer reagent holding device or the sealing layer. The hook 28 can engage with the second ring of protrusions and be located at the second position 42, as Figure 6-7 shown, at this time the tip 24 pierces the buffer reagent holding device or the sealing layer, the connection cap completely covers the connector, and the connection cap cannot cover the connector downward any further. In some other embodiments, internal threads are provided on the inner wall of the outer cavity 27, and the internal threads can be threadedly connected with the external threads on the connector 18 to achieve the connection and fixation of the connector 18 and the connection cap 25. In some preferred embodiments, a third sealing ring 29 is also provided inside the connection cap 25.

[0055] In some preferred embodiments, the buffer reagent holding device has a fixed shape and can match the shape of the inner cavity 26 of the connection cap 25, so that the inner cavity 26 can fix the buffer reagent holding device within the connection cap. In some other preferred embodiments, the buffer reagent holding device has no fixed shape and has a certain shape when filled with the buffer reagent, and this shape can be changed; when the buffer reagent is released, the shape of the buffer reagent holding device changes. The buffer reagent holding device can be a sac or a bag capable of storing the buffer reagent. After filling with the buffer reagent, the buffer reagent holding device is placed in the inner cavity 26 of the connection cap 25, and the inner cavity 26 can fix the buffer reagent holding device. In some preferred embodiments, a retaining bar is provided in the inner cavity 26 for fixing the buffer reagent holding device, but does not affect the tip piercing and entering the buffer reagent holding device, nor does it affect the connection cap covering the connector. In some preferred embodiments, the buffer reagent can be a diluent or a solution that reduces the viscosity of a liquid sample or other functional reagents; for example, some samples in their original state cannot be subjected to certain tests, or the test results are not ideal, and usually need to be pretreated to change their physical or chemical properties. For example, these samples are diluted or buffered by a buffer solution, and then tested.

[0056] The present invention also provides a method for using the detection device, including the following steps: (described with Figure 1-7 a saliva sample as the sample)

[0057] (1) Place the collection element 16 in the user's mouth, and the collection element 16 continuously absorbs saliva or collects the saliva sample by other means;

[0058] (2) Insert the piston 7 into the second channel 14, as Figure 3 shown in FIG. 6; install the connection cap 25 on the connection head 18 as Figure 4 shown in the figure, (installing the connection cap 25 on the connection head 18, this step can also be operated before the collection element collects the sample in step (1)). At this time, the tip 24 does not contact the buffer reagent storage device or the sealing layer, and the buffer reagent will not flow out. Insert the collection element 16 into the first channel 4, move the collection element 16 downward, the connection head 18 enters the pit 11 on the cup lid 9, and the whole device is in a sealed state. Continue to move the collection element 16 downward until it cannot be moved, and move the connection cap 25 downward to cover the connection head 18 as Figure 6 shown in the figure. At this time, the buffer reagent storage device is punctured by the tip 24, and the buffer reagent flows out. The buffer reagent flows in two directions. Part of it enters the first chamber 1 through the third opening 22 and the first opening 12, and the other part enters the second chamber 2 through the fourth opening 23 and the second opening 13. At the same time, this increases the pressure in the first channel 4, and the collection element 16 is subjected to air pressure, releasing the sample, and the sample flows out from the two sample outlets 5 and flows into the first chamber 1 and the second chamber 2 respectively;

[0059] (3) When a certain amount of liquid sample is stored in the first chamber 1 and the second chamber 2, push the piston 7 inward. A part of the piston 7 enters the first channel 4, and the other part enters the second channel 14, as Figure 6 shown in the figure, separating the first chamber 1 and the second chamber 2. The first chamber 1 and the second chamber 2 form independent cavities. If a detection element is placed in the first chamber 1, the sample can be instantaneously detected. The sample stored in the second chamber 2 can be used for secondary confirmation testing or for DNA testing or for testing other substances.

[0060] In this embodiment, the liquid sample is a saliva sample, and test strips are placed in the first chamber 11. These test strips can instantaneously detect substances being abused, such as cocaine, amphetamines, sedatives, etc., and give a preliminary test result. A certain amount of sample is stored in the second chamber 2, which can be used for secondary confirmation testing or for DNA testing or for testing other substances. After the testing, the sample collector can be taken out first, and then the sample in the second chamber can be taken out through the second opening for secondary testing or DNA testing or other testing.

[0061] The device of the present invention can not only perform instant detection of abused drugs in a sample, but also be sent to a laboratory for secondary confirmation testing or used for DNA testing to confirm the sample provider. The above-mentioned test samples are all from the same sample, which can ensure the accuracy of the results and reduce errors. Using this device for the detection of abused drugs is simple in operation and high in accuracy.

[0062] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

Claims

1. A detection device, characterized in that, The invention comprises a cup body, wherein a first channel is arranged in the cup body, wherein the first channel comprises a sample inlet and two sample outlets for the sample to flow out, and wherein two separated cavities are arranged in the cup body, wherein the two cavities are respectively a first cavity and a second cavity, wherein the first cavity is configured to receive and detect the sample flowing out from the sample outlet, and the second cavity is configured to receive the sample flowing out from the sample outlet, and the first cavity and the second cavity can be closed and connected, and further comprises a piston, wherein the piston can enter the first channel to cut off the connection between the first cavity and the second cavity, and wherein the piston is provided with a groove; a second channel is arranged on the bottom surface of the cup body, wherein the piston can move in the second channel; the piston can enter the first channel from the second channel; when a part of the piston enters the first channel, the other part of the piston is in the second channel; The detection device also includes a sample collector, which includes a collection element, a connecting rod, and a connecting head. The connecting head is connected to one end of the connecting rod, and the collection element is connected to the other end of the connecting rod. A first sealing ring is connected to the collection element, and the outer wall of the connecting head is provided with at least two circles of protrusions or external threads, and an inlet is provided at the upper end of the connecting head.

2. The detection device according to claim 1, characterized in that, The cup cover is also included, and the cup cover is snap-fitted to the cup body.

3. The detection device according to claim 2, characterized in that, The first channel is fixedly connected to the cup cover, and the cup cover is provided with a sample inlet.

4. The detection device according to claim 3, characterized in that, A recess is arranged on the cup cover, and the sample inlet is located in the recess.

5. The detection device according to claim 4, characterized in that A first opening and a second opening are also provided in the pit, the first opening is communicated with the first cavity, and the second opening is communicated with the second cavity.

6. The detection device according to claim 1, characterized in that A crossbeam is arranged in the second channel, the crossbeam is fixedly connected to the second channel, and a convex block is connected to the crossbeam.

7. The detection device according to claim 1, characterized in that, The bottom surface of the connector is provided with a third opening and a fourth opening, the positions of the third opening and the fourth opening correspond to the first opening and the second opening respectively, and the bottom surface of the connector has a tip, the height of which is lower than the height of the outer wall of the connector.

8. The detection device according to claim 7, characterized in that, The detection device also includes a connection cap, which can be snap-connected or threadedly connected to the connector.

9. The detection device according to claim 8, characterized in that, The connecting cap has two cavities, namely an inner cavity and an outer cavity; the inner cavity is configured to place a buffer reagent or a buffer reagent containing device, and a hook or an internal thread is provided on the side wall of the outer cavity.

Images