Sample detection device

Abstract

The invention relates to the technical field of medical instruments, and provides a sample detection device which comprises a swab and a detection box, and the swab comprises a sampling part; the detection box is provided with a reaction cavity, a liquid flow channel and a test strip embedding groove; a liquid storage bag is arranged in the reaction cavity, and the swab can be inserted into the reaction cavity and enables the sampling part to pierce the liquid storage bag; one end of the liquid flow channel is communicated with the reaction cavity, the test strip embedding groove is communicated with the liquid flow channel, and the other end of the liquid flow channel is communicated with the outside. In the scheme of the application, a user only needs to use the swab to obtain the detection sample and then pierce the liquid storage bag during detection, so that the use is simpler and more convenient, and the accuracy and the reliability of a detection result can be conveniently improved.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a sample detection device. Background Art

[0002] Among the user self-test methods currently on the market, colloidal gold test paper is usually used for testing. When using it, the user prepares the sample by himself, and then touches the sample with one end of the colloidal gold test paper. After a certain period of reaction, the test result is confirmed by observing the color band on the colloidal gold test paper.

[0003] In most sample tests, such as blood, urine, saliva, etc., due to different test requirements, it is usually necessary to dilute the sample with a diluent before testing. At this time, tools such as swabs, diluents and test strips are needed. The use of multiple tools will lead to cumbersome operations and inconvenience. Especially for non-testing professionals, manual operations can easily lead to large test errors, thereby reducing the accuracy and reliability of the test results. Summary of the invention

[0004] In order to overcome at least one disadvantage of the above-mentioned prior art, the purpose of the present application is to provide a sample detection device.

[0005] The technical means adopted by this application to solve the above technical problems are: The present application provides a sample detection device, comprising: A swab, the swab comprising a sampling portion; A test box, wherein the test box is provided with a reaction chamber, a liquid flow channel and a test strip embedding groove; A liquid storage bag is arranged in the reaction chamber, and the swab can be inserted into the reaction chamber, so that the sampling part pierces the liquid storage bag; One end of the liquid flow passage is communicated with the reaction chamber, the test strip embedding groove is communicated with the liquid flow passage, and the other end of the liquid flow passage is communicated with the outside.

[0006] In the present application, the reaction chamber is provided, so that after the sampling part pierces the liquid storage capsule, a space can be provided for the sampling part and the liquid in the liquid storage capsule to react; the test strip embedding groove is provided, so that the placement of test strips and other testing tools can be facilitated. The reacted liquid flows out through the liquid flow channel and is absorbed by the testing tool to obtain the test result. During the whole process, the user only needs to use a swab to obtain the test sample and then pierce the liquid storage capsule. It is simpler and more convenient to use, and can improve the accuracy and reliability of the test results.

[0007] In some embodiments, the test strip embedding groove is provided with one; Alternatively, a plurality of the test strip embedding grooves are provided, and the plurality of the test strip embedding grooves are arranged side by side, and the liquid flow passage is located at the same end of the plurality of the test strip embedding grooves.

[0008] In the present application, by providing the test strip embedding grooves in a plurality, it is possible to facilitate the placement of a plurality of test strips and other testing tools, thereby facilitating multiple-link testing and making it more convenient to use.

[0009] In some embodiments, a test strip is disposed in the test strip embedding groove.

[0010] In the present application, the test strip can be used to detect the mixed solution in the reaction chamber to obtain corresponding test results.

[0011] In some embodiments, a result observation area is provided on the detection box, and the test strip embedding groove and the result observation area are at least partially overlapped.

[0012] In the present application, the result observation area is provided to facilitate the user to observe the test results intuitively.

[0013] In some embodiments, the end of the liquid flow channel is connected to the outside, and when the test strip embedding groove is placed vertically, the position height of the end of the liquid flow channel is higher than the position height of the connection point between the test strip embedding groove and the liquid flow channel.

[0014] In the solution of the present application, by designing the position height of the end of the liquid flow channel, it is possible to control the amount of the mixed liquid absorbed by the detection tool in the reaction chamber, thereby improving the reliability of the detection.

[0015] In some embodiments, the end of the liquid flow channel is connected to the outside, and when the test strip embedding groove is placed vertically, the position height of the end of the liquid flow channel is lower than the position height of the connection point between the test strip embedding groove and the liquid flow channel; A bending section is provided between the end of the liquid flow channel and the connecting end of the test strip embedding groove and the liquid flow channel, and at least part of the bending section is located at a higher height than the connecting point between the test strip embedding groove and the liquid flow channel.

[0016] In the present application, by setting the bending section, the position height of the end of the liquid flow channel can have more setting options, and the mixed liquid can better form shear force during the circulation process, so that the mixed liquid and the detection tool can be quickly separated after suction, which can reduce the possibility of cross-mixing between samples in multiple detection, thereby improving the reliability of the detection results.

[0017] In some embodiments, along the conveying direction of the liquid flow channel, the curved section includes a first radial width section and a second radial width section, and the radial width of the first radial width section is greater than the radial width of the second radial width section.

[0018] In the solution of the present application, the flow rate of the mixed liquid can be easily controlled by designing different diameter widths between the first diameter width section and the second diameter width section.

[0019] In some embodiments, the detection box is provided with an airflow channel, one end of the airflow channel is connected to the reaction chamber, and the other end of the airflow channel is connected to the outside; When the test strip embedding groove is placed vertically, the position height of the air flow channel is higher than the position height of the connection point between the liquid flow channel and the reaction chamber.

[0020] In the solution of the present application, the provision of the air flow channel can facilitate the air pressure balance of the reaction chamber and the liquid flow channel, so that the transportation of the mixed liquid can be smoother.

[0021] In some embodiments, the air flow passage is arranged in a winding manner.

[0022] In the solution of the present application, by setting the airflow passage in a curved form, accidental leakage of the mixed liquid from the airflow passage can be avoided, thereby improving the safety during the detection process.

[0023] In some embodiments, one end of the test strip embedding groove is connected to the liquid flow channel, and the other end of the test strip embedding groove is connected to the outside; Alternatively, a protrusion is provided in the test strip embedding groove, and an air hole communicating with the outside is provided in the protrusion.

[0024] In the solution of the present application, the test strip embedding groove is arranged to be connected to the outside world, thereby indirectly achieving the connection between the liquid flow channel and the outside world, which facilitates the smooth progress of the detection process.

[0025] In some embodiments, a narrow opening structure for achieving communication is provided between the liquid flow channel and the reaction chamber.

[0026] In the solution of the present application, by providing the narrow mouth structure, it is possible to control the outflow rate of the mixed liquid in the reaction chamber, so as to facilitate the mixed liquid to enter the liquid flow channel.

[0027] In some embodiments, the insertion direction of the swab in the reaction chamber is opposite to the direction in which the liquid flows from the reaction chamber to the liquid flow channel; Alternatively, the insertion direction of the swab into the reaction chamber is the same as the direction in which the liquid flows from the reaction chamber to the liquid flow channel.

[0028] In some embodiments, the reaction chamber has an opening communicating with a side of the detection box, and the swab is inserted from the opening and forms a seal with the detection box.

[0029] In the solution of the present application, the opening is provided to facilitate the insertion and placement of the swab in the reaction chamber, and to facilitate the realization of the sealing function between the swab and the detection box.

[0030] In some embodiments, the sampling portion is configured in a conical shape.

[0031] In the present application, by designing the shape and structure of the sampling portion, it is possible to improve the smoothness of the piercing action of the sampling portion on the liquid storage bag, and make the outflow of the liquid in the liquid storage bag smoother.

[0032] In some embodiments, a valve mechanism is provided at the liquid inlet end of the liquid flow channel, and the valve mechanism is used to control the communication between the liquid flow channel and the reaction chamber.

[0033] In the solution of the present application, the flow of the mixed liquid in the liquid flow channel can be controlled according to actual needs by means of the provided valve body mechanism.

[0034] In some embodiments, a sliding rod is disposed in the swab, and the sliding rod can move to abut against the valve body mechanism.

[0035] In the solution of the present application, the state of the valve body mechanism can be easily controlled by providing the sliding rod.

[0036] In some embodiments, a control pump is provided at the liquid inlet end of the liquid flow channel, and the control pump is used to control the communication between the liquid flow channel and the reaction chamber.

[0037] In the solution of the present application, by providing the control pump, the flow of the mixed liquid in the liquid flow channel can be controlled according to actual needs.

[0038] In some embodiments, the reaction chamber and / or the swab is provided with a gas jet, and the gas jet is provided at a position higher than the liquid level in the reaction chamber.

[0039] In the solution of the present application, the jet port is provided to provide internal pressure to promote the flow of the mixed liquid in the liquid flow channel.

[0040] In some embodiments, the swab includes a handle portion, and a vibrator is disposed in the handle portion.

[0041] In the solution of the present application, the vibrator is provided so that the swab can have a certain vibration effect, thereby facilitating improving the mixing reaction effect of the mixed liquid.

[0042] In some embodiments, the vibrator is connected to a control switch, and the control switch is protruding and forms a contact fit with the inner wall surface of the detection box.

[0043] In the solution of the present application, the control switch is provided, and the control switch is brought into contact with the inner wall surface of the detection box, so that the swab will trigger the control switch after being inserted into place, thereby starting the vibration mode.

[0044] In some embodiments, the vibrator and the control switch are arranged on a control circuit board, and an indicator light is arranged on the control circuit board.

[0045] In the present application, the indicator light is provided to indicate the current operating status of the sample detection device, thereby preventing the user from making misoperations during the mixing process, thereby further improving the reliability of the device.

[0046] In some embodiments, a receiving cavity for placing the swab is provided in the detection box.

[0047] In the solution of the present application, the accommodation cavity is provided to facilitate the storage and placement of the swab on the detection box, making the storage of the entire device more convenient.

[0048] In some embodiments, the test strip embedding groove is arranged on the same side of the reaction chamber; Alternatively, the test strip embedding grooves are arranged on both sides of the reaction chamber.

[0049] Other features and advantages of the present application will be described in the subsequent description, or some features and advantages can be inferred or determined without doubt from the contents of the description, or can be learned by implementing the above-mentioned embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0051] Figure 1 This is a schematic diagram of the structure of a sample detection device according to one example of the present application.

[0052] Figure 2This is a schematic diagram of the configuration of a lower liquid flow channel according to an example of the present application.

[0053] Figure 3 This is a schematic diagram of the cross-sectional structure of a swab according to an example of the present application.

[0054] Figure 4 This is a schematic diagram of the structure of a swab according to one example of this application.

[0055] Figure 5 This is a schematic diagram of the structure of a liquid storage capsule according to one example of the present application.

[0056] Figure 6 This is a schematic diagram of the structure of a sample detection device according to another example of the present application.

[0057] Figure 7 This is a schematic diagram of another example of the configuration of the lower liquid flow channel of the present application.

[0058] Figure 8 This is a schematic diagram of the cross-sectional structure of another example of the swab in the present application.

[0059] Fig. 9 This is a schematic diagram of the structure of a swab according to another example of the present application.

[0060] Fig.10 This is a schematic diagram of the structure of a liquid storage capsule according to another example of the present application.

[0061] Fig.11 This is a schematic structural diagram of a sample detection device according to another example of the present application.

[0062] Fig.12 This is a schematic structural diagram of another example of a lower accommodating chamber in the present application.

[0063] Fig.13 This is a schematic diagram of the arrangement of another example of the lower liquid flow channel of the present application.

[0064] Fig.14 This is a schematic cross-sectional structural diagram of a sample detection device according to another example of the present application.

[0065] Fig.15 This is a schematic structural diagram of a swab according to another example of the present application.

[0066] Fig.16 This is a schematic diagram of an application of a sample detection device according to one example of the present application.

[0067] Fig.17 This is a schematic diagram of an application of a sample detection device according to one example of the present application.

[0068] Fig.18 This is a schematic diagram of an application of a sample detection device according to one example of the present application.

[0069] Fig.19 This is a schematic diagram of an application of a sample detection device according to one example of the present application.

[0070] Marking Description: 1-swab, 11-sampling part, 12-sealing ring, 13-sliding rod, 14-jet nozzle, 15-handle part, 151-vibrator, 152-control switch, 153-control circuit board; 2-detection box, 201-box body, 202-cover plate; 21-reaction chamber, 211-narrow structure, 212-opening, 22-liquid flow passage, 221-horizontal section, 222-bending section, 2221-first diameter width section, 2222-second diameter width section, 23-test strip embedding groove, 231-protrusion, 232-air hole, 24-result observation area, 25-air flow passage, 26-accommodating chamber; 3-liquid storage capsule, 31-mixed liquid, 32-film structure; 4-test strip, 41-display area; 5-Electric control valve; 6- Mechanical valve; 7- Control the pump. DETAILED DESCRIPTION

[0071] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. In the following description, many specific details are set forth in order to fully understand the present invention, and the embodiments described are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in the art without making creative work are within the scope of protection of the present invention.

[0072] It should be noted that: unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art of the technical field of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Similar reference numerals and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0073] At present, people are paying more and more attention to their own health problems. Under permitted conditions, based on personal privacy, convenience and medical conditions, people are more inclined to conduct self-testing. In conventional testing methods, samples are usually tested with test strips, test papers and other testing tools to obtain test results; however, in most sample testing operations, samples often need to be pre-treated, such as dilution, and then tested after treatment. In this method, due to their own professional level, many people cannot grasp the amount of treatment liquid and the amount of absorption of the testing tools well, resulting in a large deviation in the final test results. Moreover, the testing tools, sampling swabs and treatment liquids are set separately, and the operation is cumbersome. If you are not careful, it will cause pouring and overflow, which does not meet the hygiene requirements. Even the testing tools come into contact with other substances in advance, resulting in the accuracy and reliability of the final test results.

[0074] In view of the above technical problems, the purpose of the present embodiment is to provide a sample detection device, which makes the detection operation simpler and can improve the accuracy and reliability of the detection results for the convenience of users.

[0075] like Figures 1 to 19 As shown, this embodiment provides a sample detection device, including: A swab 1, wherein the swab 1 comprises a sampling portion 11; A test box 2, wherein the test box 2 is provided with a reaction chamber 21, a liquid flow channel 22 and a test strip embedding groove 23; The reaction chamber 21 is provided with a liquid storage capsule 3, and the swab 1 can be inserted into the reaction chamber 21, so that the sampling portion 11 pierces the liquid storage capsule 3; One end of the liquid flow channel 22 is communicated with the reaction chamber 21 , the test strip embedding groove 23 is communicated with the liquid flow channel 22 , and the other end of the liquid flow channel 22 is communicated with the outside.

[0076] In some embodiments, Figure 4 , Fig. 9 , Fig.15 As shown, the sampling portion 11 is arranged at the front end of the swab 1 and is used to dip a test sample, such as urine, blood, saliva, etc., to facilitate subsequent testing operations on the sample.

[0077] In some embodiments, Figure 1 , Figure 5 , Fig.11 As shown, the detection box 2 is arranged in a rectangular body. It should be understood that on the basis of similar or identical features, structural composition and functions, the appearance shape of the detection box 2 includes but is not limited to being arranged in a rectangular body. In this embodiment, the detection box 2 arranged in a rectangular body is mainly used for exemplary description.

[0078] In some embodiments, Figure 2 , Figure 7 , Fig.13 As shown, in order to facilitate processing, manufacturing and use, the reaction chamber 21, the liquid flow channel 22 and the test strip embedding groove 23 are opened on the side of the detection box 2. For example, the reaction chamber 21, the liquid flow channel 22 and the test strip embedding groove 23 are simultaneously arranged on a large side of the detection box 2, so that the operation can be more convenient and intuitive.

[0079] In some embodiments, in order to improve the side and space utilization of the detection box 2, the reaction chamber 21, the liquid flow channel 22 and the test strip embedding groove 23 can also be respectively arranged on different sides of the detection box 2, but the liquid flow channel 22 still needs to connect the reaction chamber 21 and the test strip embedding groove 23, and the specific setting form is not limited here.

[0080] In some embodiments, Figure 5 , Fig.10 As shown, the liquid storage capsule 3 is a prefabricated independent component, so that the liquid storage capsule 3 can be detachably mounted on the detection box 2. Moreover, since the liquid storage capsule 3 is a prefabricated component, the composition and amount of the liquid in the liquid storage capsule 3 are also prefabricated, and the user does not need to perform the mixing operation when using it, so that the detection operation can be simpler and more efficient.

[0081] In some embodiments, the liquid storage capsule 3 stores a diluent for diluting the sample, and obtains a mixed solution 31 after dilution.

[0082] In some embodiments, Figure 6 , Figure 7 , Fig.10 As shown, along the insertion direction of the swab 1 in the reaction chamber 21, the liquid storage capsule 3 is installed at the end of the reaction chamber 21. At this time, the wall surface of the liquid storage capsule 3 facing the swab 1 is set as a thin film structure 32, so that the swab 1 can pierce the thin film structure 32 and then enter the liquid storage capsule 3, and facilitate the liquid in the liquid storage capsule 3 to flow out.

[0083] In some embodiments, Figure 2 , Figure 3 , Figure 5 , Fig.14 , Figures 16 to 19 As shown, along the insertion direction of the swab 1 in the reaction chamber 21, the liquid storage capsule 3 is installed at the front end or the middle part of the reaction chamber 21. At this time, the wall surfaces of the liquid storage capsule 3 facing and facing away from the swab 1 are set as a thin film structure 32, so that the swab 1 can pass through the liquid storage capsule 3 horizontally.

[0084] The reaction chamber 21 is provided to facilitate the sampling part 11 to provide a space for the liquid in the liquid storage capsule 3 to react after piercing the liquid storage capsule 3. At this time, the sampling part 11 carrying the sample and the liquid flowing out of the liquid storage capsule 3 are mixed in the reaction chamber 21. The test strip embedding groove 23 is provided to facilitate the placement of test strips 4 and other testing tools. The liquid after the mixed reaction flows out through the liquid flow channel 22 and is absorbed by the testing tool to obtain the test result. In the whole process, the user usually only needs to use the swab 1 to obtain the test sample, and then pierce the liquid storage capsule 3. It is simpler and more convenient to use, and can improve the accuracy and reliability of the test results.

[0085] As one application example, the test strip embedding groove 23 is provided with one; Alternatively, a plurality of the test strip embedding grooves 23 are provided, and the plurality of the test strip embedding grooves 23 are arranged side by side, and the liquid flow channel 22 is located at the same end of the plurality of the test strip embedding grooves 23 .

[0086] In some embodiments, the test box 2 is provided with a test strip embedding groove 23. Since the number of the test strip embedding grooves 23 is small, the overall path of the liquid flow channel 22 can be set shorter, so the volume of the entire sample detection device can be more compact.

[0087] In some embodiments, Figure 2 , Figure 7 , Fig.13 As shown, the test box 2 is provided with a plurality of test strip embedding grooves 23, where "plurality" includes two; at this time, the plurality of test strip embedding grooves 23 are arranged side by side, and the connection between each test strip embedding groove 23 and the liquid flow passage 22 is located on the same horizontal straight line, so that the relative distances between different test strip embedding grooves 23 and the liquid flow passage 22 are close or the same. The design of the plurality of test strip embedding grooves 23 can facilitate the multi-test operation, thereby facilitating the acquisition of test results under different test requirements.

[0088] By providing the test strip embedding grooves 23 in a plurality, it is possible to place a plurality of test strips 4 and other testing tools, thereby facilitating multiple tests and making the use more convenient.

[0089] As an example of one of the applications, refer to Figure 7 As shown, a test strip 4 is arranged in the test strip embedding groove 23 .

[0090] In some embodiments, the test strip 4 is provided with a display area 41, such as a color display strip, etc., so as to facilitate users to judge the test results.

[0091] In some embodiments, the size of the test strip embedding groove 23 is adapted to the size of the test strip 4 , so as to improve the stability of the test strip 4 after being installed in the test strip embedding groove 23 .

[0092] The detection test strip 4 can be used to absorb and detect the mixed liquid flowing out of the reaction chamber 21 to the liquid flow channel 22, so as to obtain corresponding detection results.

[0093] As an example of one of the applications, refer to Figure 5 As shown, a result observation area 24 is provided on the detection box 2, and the test strip embedding groove 23 and the result observation area 24 are at least partially overlapped.

[0094] In some embodiments, Figure 5 As shown, the detection box 2 includes a box body 201 and a cover plate 202, the reaction chamber 21, the liquid flow channel 22 and the test strip embedding groove 23 are arranged on the outer surface of the box body 201, and then the cover plate 202 is installed on the box body 201 to form an enclosure and seal.

[0095] In some embodiments, Figure 5 As shown, the result observation area 24 is a plurality of transparent windows arranged on the cover plate 202 , and the positions of these transparent windows correspond to the positions of the display area 41 of the test strip 4 .

[0096] In some embodiments, the cover plate 202 is transparent, and in this case the entire cover plate 202 can serve as the result observation area 24 .

[0097] In some embodiments, the cover plate 202 is configured as a transparent film, and a seal is formed by attaching the transparent film to the box body 201, and the overall structure is also simpler.

[0098] The result observation area 24 is provided to facilitate the user to observe the test results intuitively.

[0099] As an example of one of the applications, you can refer to Fig.16 As shown, the end of the liquid flow channel 22 is connected to the outside, and when the test strip embedding groove 23 is placed vertically, the position height of the end of the liquid flow channel 22 is higher than the position height of the connection point between the test strip embedding groove 23 and the liquid flow channel 22.

[0100] In some embodiments, the liquid flow channel 22 includes a horizontal section 221, and the test strip embedding grooves 23 are all connected and arranged on the horizontal section 221; at this time, the height difference in the vertical direction between the end of the liquid flow channel 22 and the horizontal section 221 corresponds to the liquid level that the suction end of the test strip 4 can directly contact.

[0101] By designing the position height of the end of the liquid flow channel 22, it is possible to control the amount of the mixed liquid that flows from the reaction chamber 21 to the liquid flow channel 22 absorbed by the detection tool, thereby facilitating improving the reliability of the detection.

[0102] As an example of one application, Figure 2 As shown, the end of the liquid flow channel 22 is connected to the outside, and when the test strip embedding groove 23 is placed vertically, the position height of the end of the liquid flow channel 22 is lower than the position height of the connection point between the test strip embedding groove 23 and the liquid flow channel 22; A curved section 222 is provided between the end of the liquid flow channel 22 and the connection point between the test strip embedding groove 23 and the liquid flow channel 22 , and at least part of the curved section 222 is located at a height higher than the connection point between the test strip embedding groove 23 and the liquid flow channel 22 .

[0103] In some embodiments, the curved segment 222 is arranged in an "m" shape.

[0104] By setting the bending section 222, the position height of the end of the liquid flow channel 22 can have more setting options, and the mixed liquid can better form shear force during the circulation process, so that the mixed liquid and the detection tool can be quickly separated after suction, which can reduce the possibility of cross-mixing between samples in multiple detection, thereby improving the reliability of the detection results.

[0105] As an example of one of the applications, continue to refer to Figure 2 As shown, along the conveying direction of the liquid flow channel 22 , the curved section 222 includes a first radial width section 2221 and a second radial width section 2222 , and the radial width of the first radial width section 2221 is greater than the radial width of the second radial width section 2222 .

[0106] In some embodiments, the first diameter width section 2221 and the second diameter width section 2222 are connected by a gradual transition, such as providing a tapered section to respectively connect the first diameter width section 2221 and the second diameter width section 2222, so that the flow of the mixed liquid can be smoother.

[0107] By designing the first width section 2221 and the second width section 2222 differently, the flow rate of the mixed liquid can be easily controlled, so that the flow rate of the mixed liquid in the second width section 2222 is greater than that in the first width section 2221 .

[0108] As an example of one application, Figure 1 , Figure 2 , Fig.13 As shown, the detection box 2 is provided with an airflow channel 25, one end of the airflow channel 25 is connected to the reaction chamber 21, and the other end of the airflow channel 25 is connected to the outside; When the test strip embedding groove 23 is placed vertically, the position height of the air flow channel 25 is higher than the position height of the connection point between the liquid flow channel 22 and the reaction chamber 21 .

[0109] In some embodiments, the air flow passage 25 is opened on the side of the detection box 2 .

[0110] In some embodiments, the connection between the air flow passage 25 and the reaction chamber 21 is arranged in the middle of the reaction chamber 21 to avoid the two end spaces of the reaction chamber 21 to avoid interference with the mixed liquid. Figure 2 , Fig.13 shown.

[0111] The air flow passage 25 can facilitate the air pressure balance of the reaction chamber 21 and the liquid flow passage 22, so that the mixed liquid can be transported more smoothly.

[0112] As an example of one application, Figure 2 , Fig.13 As shown, the air flow passage 25 is arranged in a winding manner.

[0113] In some embodiments, the air flow channel 25 is arranged in an "S" shape.

[0114] By arranging the airflow passage 25 in a winding manner, accidental leakage of the mixed liquid from the airflow passage 25 can be avoided, thereby improving the safety and reliability of the detection process.

[0115] As an example of one of the applications, refer to Figure 7 , Fig.13 As shown, one end of the test strip embedding groove 23 is connected to the liquid flow channel 22, and the other end of the test strip embedding groove 23 is connected to the outside; Alternatively, a protrusion 231 is provided in the test strip embedding groove 23, and an air hole 232 communicating with the outside is provided in the protrusion 231.

[0116] In some embodiments, when the end of the liquid flow channel 22 is directly connected to the outside, one end of the test strip embedding groove 23 is connected to the liquid flow channel 22, while the other end of the test strip embedding groove 23 is sealed, so that when the mixed liquid enters the test strip embedding groove 23, it will be hindered by a certain air pressure, thereby preventing a large amount of mixed liquid from flowing into the test strip embedding groove 23, thereby facilitating the control of the absorption amount.

[0117] In some embodiments, Figure 7 As shown, one end of the test strip embedding groove 23 is communicated with the liquid flow channel 22, and the end of the test strip embedding groove 23 is communicated with the outside.

[0118] In some embodiments, continue to refer to Figure 7 As shown, the ends of the plurality of test strip embedding grooves 23 can be connected to the outside through the same channel.

[0119] In some embodiments, Fig.13 As shown, a protrusion 231 is provided in each of the test strip embedding grooves 23, and an air hole 232 communicating with the outside is provided in the protrusion 231. The position height of the air hole 232 corresponds to the liquid level of the test strip 4 during aspiration.

[0120] In some embodiments, continue to refer to Fig.13 As shown, at this time, the end position of the liquid flow channel 22 is higher than the position of its horizontal section 221, and the position height of the air hole 232 corresponds to the end position height of the liquid flow channel 22. Therefore, after the mixed liquid flows into the horizontal section 221, the absorption of the test strip 4 in the test strip embedding groove 23 near the end will not be affected by the flow impact, thereby improving the stability of the test strip 4 when being absorbed.

[0121] In some embodiments, a rubber plug is provided between each of the air holes 232 and the connecting channel with the outside world, so that the connection between the target air hole and the outside world can be blocked and blocked by the rubber plug. At this time, the mixed liquid will not enter the test strip embedding groove 23 where the blocked air hole 232 is located under the action of internal pressure.

[0122] In some embodiments, the rubber plug may be replaced by a valve body, so that the connection state between the target pore and the outside world can be controlled by controlling the opening or closing of the corresponding valve body.

[0123] By arranging the test strip embedding groove 23 to be in communication with the outside, the communication between the liquid flow channel 22 and the outside can be indirectly achieved, which can also facilitate the smooth progress of the detection process.

[0124] As an example of one of the applications, refer to Figure 1 , Figure 2 , Fig.13 As shown, a narrow opening structure 211 is provided between the liquid flow channel 22 and the reaction chamber 21 for achieving communication.

[0125] In some embodiments, the end wall surface of the reaction chamber 21 connected to the narrow structure 211 is inclined, and the lower end of the inclination is connected to the narrow structure 211, so as to further facilitate the outflow of the mixed liquid.

[0126] By setting the narrow mouth structure 211, the outflow speed of the mixed liquid in the reaction chamber 21 can be easily controlled, so that the flow rate of the mixed liquid in the liquid flow channel 22 can be accelerated, which is more conducive to the mixed liquid entering the liquid flow channel 22.

[0127] As one application example, the insertion direction of the swab 1 in the reaction chamber 21 is opposite to the direction in which the liquid flows from the reaction chamber 21 to the liquid flow channel 22; Alternatively, the insertion direction of the swab 1 into the reaction chamber 21 is the same as the direction in which the liquid flows from the reaction chamber 21 to the liquid flow channel 22 .

[0128] In some embodiments, the swab 1 is inserted from the top of the detection box 2 and pierces the liquid storage capsule 3; after the sampling portion 11 and the liquid are mixed at the bottom of the reaction chamber 21, the detection box 2 is inverted so that the mixed liquid flows out of the liquid flow channel 22, and then subsequent detection is performed. At this time, the connection between the liquid flow channel 22 and the reaction chamber 21 is set close to the top of the detection box 2, refer to Figure 2 , Figure 7 , Fig.13 shown.

[0129] In some embodiments, the swab 1 is inserted from the top of the detection box 2 and pierces the liquid storage capsule 3; when the sampling portion 11 and the liquid are mixed at the bottom of the reaction chamber 21, the mixed liquid can flow out without inversion for subsequent testing. At this time, the connection between the liquid flow channel 22 and the reaction chamber 21 is set close to the bottom of the detection box 2, refer to Figures 16 to 19 shown.

[0130] As an example of one application, Figure 3 , Figure 8 , Fig.14 As shown, the reaction chamber 21 has an opening 212 communicating with the side of the detection box 2 , and the swab 1 is inserted from the opening 212 and forms a seal with the detection box 2 .

[0131] In some embodiments, a cross-sectional shape of the opening 212 is the same as a cross-sectional shape of the reaction chamber 21 .

[0132] In some embodiments, the cross-sectional shape of the opening 212 is different from the cross-sectional shape of the reaction chamber 21 , so that the design of the internal space of the reaction chamber 21 can be more flexible.

[0133] In some embodiments, a sealing ring 12 is provided between the outer side surface of the swab 1 and the inner wall surface of the opening 212. Figure 3 , Figure 8 , Fig.14 shown.

[0134] In some embodiments, a partial cross-sectional shape of the swab 1 matches a cross-sectional shape of the opening 212 , and the portion of the swab 1 in contact with the opening 212 is made of soft material, so that a seal is formed by an interference fit between the swab 1 and the opening 212 .

[0135] In some embodiments, Figure 3 , Fig.14 As shown, the liquid storage capsule 3 is embedded in the opening 212 .

[0136] In some embodiments, Figure 8 , Figures 16 to 19 As shown, the liquid storage capsule 3 is embedded in the reaction chamber 21 .

[0137] The opening 212 can facilitate the insertion of the swab 1 into the reaction chamber 21 and facilitate the sealing function between the swab 1 and the detection box 2 .

[0138] As an example of one of the applications, refer to Figure 4 , Fig. 9 , Fig.15 As shown, the sampling portion 11 is arranged in a cone shape.

[0139] By designing the shape and structure of the sampling portion 11, the smoothness of the piercing action of the sampling portion 11 on the liquid storage capsule 3 can be improved, and the liquid in the liquid storage capsule 3 can flow out more smoothly.

[0140] As one application example, a valve body mechanism is provided at the liquid inlet end of the liquid flow channel 22 , and the valve body mechanism is used to control the communication between the liquid flow channel 22 and the reaction chamber 21 .

[0141] In some embodiments, Fig.16As shown, the valve body mechanism is configured as an electrically controlled valve 5. At this time, the electrically controlled valve 5 is configured at the connection between the liquid flow passage 22 and the reaction chamber 21; when the electrically controlled valve 5 is closed, the sampling portion 11 and the liquid are in a mixing stage, and when the mixing is completed, the electrically controlled valve 5 is opened to facilitate the outflow of the mixed liquid 31.

[0142] In some embodiments, Fig.17 As shown, the valve body mechanism is set as a mechanical valve 6. At this time, the mechanical valve 6 is set at the connection between the liquid flow channel 22 and the reaction chamber 21, and a space for the mechanical valve 6 to move is reserved in the reaction chamber 21. By controlling the movement of the mechanical valve 6, the connection between the liquid flow channel 22 and the reaction chamber 21 can be controlled.

[0143] By means of the valve body mechanism, the flow state of the mixed liquid 31 in the liquid flow channel 22 can be controlled according to actual needs.

[0144] As an example of one of the applications, continue to refer to Fig.17 As shown, a sliding rod 13 is provided in the swab 1, and the sliding rod 13 can move to abut against the valve body mechanism.

[0145] In some embodiments, the valve body mechanism is configured as a mechanical valve 6 .

[0146] In some embodiments, the sliding rod 13 is arranged in the swab 1. Before use, the end of the sliding rod 13 is stored in the end of the swab 1. At this time, the swab 1 is normally inserted into the reaction chamber 21 and pierces the liquid storage capsule 3. After the swab 1 is inserted into place, it is abutted against the mechanical valve 6; when the sample and the liquid are mixed, the sliding rod 13 is driven so that the end of the sliding rod 13 applies a force to the mechanical valve 6, thereby causing the mechanical valve 6 to be displaced so that the mixed liquid 31 can flow into the liquid flow channel 22.

[0147] In some embodiments, the driving setting of the sliding rod 13 is manual pressing.

[0148] In some embodiments, the sliding rod 13 is controlled by providing a micro motor.

[0149] By providing the sliding rod 13, the state of the valve body mechanism can be easily controlled.

[0150] As an example of one of the applications, refer to Fig.18 As shown, a control pump 7 is provided at the liquid inlet end of the liquid flow channel 22 , and the control pump 7 is used to control the communication between the liquid flow channel 22 and the reaction chamber 21 .

[0151] In some embodiments, the control pump 7 is configured as a peristaltic pump or a suction pump.

[0152] In some embodiments, when the control pump 7 is driven forward, the mixed liquid in the reaction chamber 21 is transported to the liquid flow channel 22; when the control pump 7 is driven reversely, air is blown into the reaction chamber 21 to elute the mixed liquid 31.

[0153] By providing the control pump 7, the flow of the mixed liquid 31 in the liquid flow channel 22 can be controlled according to actual needs.

[0154] As an example of one of the applications, refer to Fig.19 As shown, the reaction chamber 21 and / or the swab 1 is provided with a jet port 14 , and the jet port 14 is arranged at a position higher than the liquid level in the reaction chamber 21 .

[0155] In some embodiments, the gas injection port 14 is disposed on the inner wall of the reaction chamber 21 .

[0156] In some embodiments, the swab 1 is hollow, and the air jet 14 is disposed on the wall of the swab 1 .

[0157] The jet port 14 can provide internal pressure to promote the flow of the mixed liquid 31 in the liquid flow channel 22 .

[0158] As an example of one application, Figure 8 , Fig. 9 , Fig.15 As shown, the swab 1 comprises a handle portion 15 , and a vibrator 151 is disposed in the handle portion 15 .

[0159] In some embodiments, the sampling portion 11 and the handle portion 15 are respectively disposed at the front and rear ends of the swab 1 , and the handle portion 15 is used to implement a holding operation on the swab 1 .

[0160] In some embodiments, the vibrator 151 is configured as a micro vibration motor.

[0161] By providing the vibrator 151 , the swab 1 can have a certain vibration effect, thereby facilitating improving the mixing reaction effect of the mixed solution.

[0162] As an example of one application, Fig.14 , Fig.15 As shown, the vibrator 151 is connected to a control switch 152 , and the control switch 152 is protruding and forms a contact fit with the inner wall surface of the detection box 2 .

[0163] In some embodiments, the control switch 152 is protruded from the outer peripheral surface of the handle portion 15, so that when the swab 1 is inserted or inserted into place, the control switch 152 is pressed against the inner wall surface of the detection box 2, thereby activating the control switch 152 to trigger the operation of the vibrator 151.

[0164] In some embodiments, Fig.14 , Fig.15 As shown, the control switch 152 is concavely arranged on the handle portion 15, and part of the inner wall surface of the detection box 2 is convexly arranged, so that when the swab 1 is inserted, it is easy to cooperate with the control switch 152 to start the control switch 152.

[0165] By setting the control switch 152 and making the control switch 152 contact and cooperate with the inner wall surface of the detection box 2, the swab 1 will trigger the control switch 152 after being inserted into place, thereby starting the vibration mode.

[0166] As an application example, the vibrator 151 and the control switch 152 are arranged on a control circuit board 153 , and an indicator light is arranged on the control circuit board 153 .

[0167] In some embodiments, the detection box 2 and the handle portion 15 are both made of light-transmitting materials, and the indicator light is set at any position on the control circuit board 153 .

[0168] In some embodiments, the flashing of the indicator light is associated with the operation of the vibrator 151. For example, when the control switch 152 is triggered and turned on, the vibrator 151 starts to operate, and the indicator light flashes accordingly; when the vibration stirring operation within the set time is completed, the indicator light changes from a flashing state to a constant light state, thereby providing the user with a more intuitive operation instruction.

[0169] In some embodiments, a buzzer is provided on the control circuit board 153. For example, after the vibration stirring operation within a set time is completed, a sound is emitted through the buzzer to inform the user.

[0170] In some embodiments, a button battery is installed on the control circuit board 153 .

[0171] By providing the indicator light, the current operating status of the sample detection device can be prompted to avoid the user from making misoperations during the mixing process, thereby further improving the reliability of the device.

[0172] As an example of one application, Fig.12 , Fig.14As shown, the detection box 2 is provided with a receiving cavity 26 for placing the swab 1 .

[0173] In some embodiments, Fig.14 As shown, the openings of the accommodating chamber 26 and the reaction chamber 21 are arranged in opposite directions, so that the internal space of the detection box 2 can be better utilized and the overall structure is more compact.

[0174] By providing the accommodating cavity 26, the swab 1 can be easily stored and placed on the detection box 2, so that the storage of the entire device can be more convenient.

[0175] As one application example, the test strip embedding groove 23 is arranged on the same side of the reaction chamber 21; Alternatively, the test strip embedding grooves 23 are arranged on both sides of the reaction chamber 21 .

[0176] In some embodiments, Figure 2 , Fig.13 , Figures 16 to 19 As shown, the test strip embedding grooves 23 are provided in plurality, and the plurality of test strip embedding grooves 23 are provided on the same side of the reaction chamber 21; under this structural form, it is easy to reduce the inversion operation of the detection box 2, and the contact time between different test strips 4 and the mixed liquid after the mixed liquid flows into the liquid flow channel 22 is affected by differences.

[0177] In some embodiments, three test strip embedding grooves 23 are provided.

[0178] In some embodiments, Figure 7 As shown, there are four test strip embedding grooves 23, and the four test strip embedding grooves 23 are symmetrically arranged on both sides of the reaction chamber 21; under this structural form, the entire sample detection device can have better symmetry.

[0179] The above description is only a specific implementation mode of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various modifications and changes. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should also be included in the scope of protection of the present application. Therefore, the scope of protection of the present application shall be based on the scope of protection of the claims.

[0180] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A sample detection device, characterized in that: include: A swab, the swab comprising a sampling portion; A test box, wherein the test box is provided with a reaction chamber, a liquid flow channel and a test strip embedding groove; A liquid storage bag is arranged in the reaction chamber, and the swab can be inserted into the reaction chamber, so that the sampling part pierces the liquid storage bag; One end of the liquid flow passage is communicated with the reaction chamber, the test strip embedding groove is communicated with the liquid flow passage, and the other end of the liquid flow passage is communicated with the outside.

2. The sample detection device according to claim 1, characterized in that: The test strip embedding groove is provided with one; Alternatively, a plurality of the test strip embedding grooves are provided, and the plurality of the test strip embedding grooves are arranged side by side, and the liquid flow passage is located at the same end of the plurality of the test strip embedding grooves.

3. The sample detection device according to claim 2, characterized in that: A test strip is arranged in the test strip embedding groove.

4. The sample detection device according to any one of claims 1 to 3, characterized in that: The detection box is provided with a result observation area, and the test strip embedding groove and the result observation area are at least partially overlapped.

5. The sample detection device according to claim 4, characterized in that: The end of the liquid flow passage is connected to the outside. When the test strip embedding groove is placed vertically, the position height of the end of the liquid flow passage is higher than the position height of the connection point between the test strip embedding groove and the liquid flow passage.

6. The sample detection device according to claim 4, characterized in that: The end of the liquid flow passage is connected to the outside, and when the test strip embedding groove is placed vertically, the position height of the end of the liquid flow passage is lower than the position height of the connection point between the test strip embedding groove and the liquid flow passage; A bending section is provided between the end of the liquid flow channel and the connecting end of the test strip embedding groove and the liquid flow channel, and at least part of the bending section is located at a higher height than the connecting point between the test strip embedding groove and the liquid flow channel.

7. The sample detection device according to claim 6, characterized in that: Along the conveying direction of the liquid flow passage, the curved section includes a first radial width section and a second radial width section, and the radial width of the first radial width section is greater than the radial width of the second radial width section.

8. The sample detection device according to claim 6 or 7, characterized in that: The detection box is provided with an airflow channel, one end of which is connected to the reaction chamber, and the other end of which is connected to the outside world; When the test strip embedding groove is placed vertically, the position height of the air flow channel is higher than the position height of the connection point between the liquid flow channel and the reaction chamber.

9. The sample detection device according to claim 8, characterized in that: The airflow passage is arranged in a winding manner.

10. The sample detection device according to claim 4, characterized in that: One end of the test strip embedding groove is connected to the liquid flow channel, and the other end of the test strip embedding groove is connected to the outside world; Alternatively, a protrusion is provided in the test strip embedding groove, and an air hole communicating with the outside is provided in the protrusion.

11. The sample detection device according to claim 8, characterized in that: A narrow opening structure for achieving communication is provided between the liquid flow passage and the reaction chamber.

12. The sample detection device according to claim 1 or 11, characterized in that: The insertion direction of the swab in the reaction chamber is opposite to the direction in which the liquid flows from the reaction chamber to the liquid flow channel; Alternatively, the insertion direction of the swab into the reaction chamber is the same as the direction in which the liquid flows from the reaction chamber to the liquid flow channel.

13. The sample detection device according to claim 12, characterized in that: The reaction chamber has an opening communicating with a side of the detection box, and the swab is inserted from the opening to form a seal with the detection box.

14. The sample detection device according to claim 13, characterized in that: The sampling portion is arranged in a cone shape.

15. The sample detection device according to claim 1, characterized in that: A valve body mechanism is provided at the liquid inlet end of the liquid flow passage, and the valve body mechanism is used to control the communication between the liquid flow passage and the reaction chamber.

16. The sample detection device according to claim 15, characterized in that: A sliding rod is arranged in the swab, and the sliding rod can move to contact with the valve body mechanism.

17. The sample detection device according to claim 1, characterized in that: A control pump is provided at the liquid inlet end of the liquid flow channel, and the control pump is used to control the communication between the liquid flow channel and the reaction chamber.

18. The sample detection device according to claim 1, characterized in that: The reaction chamber and / or the swab are provided with an air jet, and the setting position of the air jet is higher than the liquid level in the reaction chamber.

19. The sample detection device according to claim 1, characterized in that: The swab comprises a handle portion, and a vibrator is arranged in the handle portion.

20. The sample detection device according to claim 19, characterized in that: The vibrator is connected to a control switch, and the control switch is protruding and forms a contact fit with the inner wall surface of the detection box.

21. The sample detection device according to claim 20, characterized in that: The vibrator and the control switch are arranged on a control circuit board, and an indicator light is arranged on the control circuit board.

22. The sample detection device according to any one of claims 1, 19-21, characterized in that: The detection box is provided with a receiving cavity for placing the swab.

23. The sample detection device according to claim 1, characterized in that: The test strip embedding grooves are arranged on the same side of the reaction chamber; Alternatively, the test strip embedding grooves are arranged on both sides of the reaction chamber.

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