439 results about "Test Strip (device)" patented technology

The invention provides colloidal gold test paper, a detection method and device thereof and a computer readable storage medium, and relates to the field of rapid test paper detection.The colloidal gold test paper is printed with a first positioning block and a second positioning block on the two sides of a color developing area, and the method comprises the steps that a target image containing the complete colloidal gold test paper to be detected is obtained; performing positioning block positioning on the target image to obtain position information of the two positioning blocks; acquiring a color development area image based on the position information, further obtaining a detection line image and a quality control line image, performing image preprocessing, and then extracting feature vectors of a detection line and a quality control line; and finally, the cloud server obtains a detection result by using the classification prediction model and returns the detection result. According to the method, two positioning blocks are printed on the test paper, so that a user can automatically identify the accurate position of the colloidal gold test paper and obtain a real-time detection result by using a mobile terminal on the premise of almost not increasing the production cost.

A specimen collection, storage, transport, and testing device can include a vessel carrying a liquid reagent. A lid sealing the vessel can include a solid specimen collection stick projecting from an inside surface of the lid. Further, the lid can include a port on its outside surface. The port can be releasably engaged by a hand-manipulable handle facilitating specimen collection and attachment of the lid to the vessel. The port can further include an openably sealed aperture for accommodating the insertion of a test strip-carrying cartridge. The reusability of the handle and its reduced material structure helps avoid waste.

A station for a urine analysis device is proposed, the station including a case, intended to be positioned at least partially within the toilet, a housing, within the case, configured to at least partially receive a cartridge comprising a plurality of test supports (e.g. test strips). The cartridge is movable within the housing. The station may also include an optical sensor, a translatory injector and an analyzer (e.g. optical). Various configurations are available.

The invention belongs to the technical field of microbiological detection, and particularly relates to a closed nucleic acid extraction, amplification and detection fully-integrated device. Comprising an injector type nucleic acid extraction, enrichment and amplification assembly, a detection card box, a three-way valve and a sealing cover, wherein the nucleic acid extraction, enrichment and amplification assembly comprises a chitosan modified paper sheet used for nucleic acid enrichment and an injector, the chitosan modified paper sheet is fixed in a needle cylinder of the injector through a rubber plug, and a piston of the injector is isolated from the chitosan modified paper sheet through isolation liquid; the detection card box is internally provided with at least one test strip, a box body is provided with a vent hole, the vent hole is covered with a film, and the film is breathable and waterproof; when an amplification product is loaded, one end of the three-way valve is connected with the detection card box, the other end of the three-way valve is connected with the nucleic acid extraction, enrichment and amplification assembly, and the third end of the three-way valve serves as a liquid inlet; during detection, the sealing cover is connected with the third end of the three-way valve.

The invention discloses a portable micro-fluidic chip, a detection method and a detection device, and belongs to the field of micro-fluidic chips, the portable micro-fluidic chip comprises a chip body and M detection modules on the chip body, the detection module comprises a quantitative chamber, a micro-channel, a reaction chamber, N first connecting channels and N test strips; reactants are pre-buried in the reaction chamber; one end of the micro-channel is communicated with the bottom end of the quantitative chamber, the other end of the micro-channel is communicated with the reaction chamber, and the connecting point of the micro-channel and the reaction chamber is lower than the bottom end of the quantitative chamber; the bottom ends of the N first connecting channels are all communicated with the top end of the reaction chamber, and the top ends of the N first connecting channels are respectively communicated with the top ends of the N test strips; the flow resistance of the first connecting channel is smaller than that of the micro-channel; m and N are positive integers greater than or equal to 1. According to the invention, the difficulty and complexity of fluid control can be reduced, and the portability of the micro-fluidic chip is improved.

The invention relates to methods, devices, and software for distinguishing hemoglobin (Hb) from myoglobin (Mb) in urine samples using peroxidase-reactive test strips. A time-resolved video of the color change on the test pad is recorded, and hue values are extracted and analyzed over time. Diagnostic differentiation between Hb and Mb is achieved by evaluating the hue-time curve, in particular via endpoint hue values and the ratio of integrated hue values in distinct time intervals. The invention further comprises a standardized optical setup for recording, a software-based evaluation algorithm, and a refillable cartridge for in-situ urine analysis devices containing appropriate test fields. The invention enables combined testing with additional urine parameters and is suitable for medical and non-clinical applications such as sport and home diagnostics.

A sampling detection device includes an outer tube, an inner tube, and a tube cover, where the outer tube includes a reaction liquid holding chamber and a main body holding chamber that are communicated with each other; an end of the main body holding chamber is open; a side wall of the main body holding chamber includes a transparent structure; the inner tube includes a squeezing part and a test strip mounting part; the outer tube is configured to hold the inner tube; the test strip mounting part is located inside the main body holding chamber; the squeezing part is inserted into the reaction liquid holding chamber; the squeezing part cooperates with an inner wall of the reaction liquid holding chamber to form a gap; the tube cover is detachably connected to the outer tube and configured to close or open an open side of the main body holding chamber.

The utility model relates to the technical field of medical instruments, in particular to a full-automatic liquid sample analyzer which comprises a sample feeding mechanism, a rotary sample disc mechanism, a sampling mechanism and a control device, the sample feeding mechanism comprises a supporting platform, a test paper partition plate moves in the length direction of the supporting platform, and a plurality of partition grooves are formed in the test paper partition plate in a penetrating mode. The test strip is placed in the separation groove; the rotary sample disc mechanism is located on the side of the supporting platform in the length direction, and a plurality of sample tubes are placed on the rotary sample disc mechanism in the rotating direction; the sampling mechanism comprises a sampling bottom plate, a horizontal sampling assembly and a vertical sampling assembly, the horizontal position of sampling is adjusted through the horizontal sampling assembly, and the vertical position of sampling is adjusted through the vertical sampling assembly. A plurality of test paper strips can be placed on the supporting platform at a time and are separated by the isolation grooves of the test paper separation plate to complete full-automatic detection, so that the condition that the test paper strips are stuck easily in a high-speed instrument is avoided, and the step of manually soaking the test paper strips is omitted.

A point-of-care device and method for simultaneously and quantitatively assessing a magnetically-labelled analyte immobilised on a lateral flow test strip are provided. The method comprises the steps of sensing a magnetic signal from the magnetically-labelled analyte on the test strip and converting the magnetic signal into an electric signal; processing the electric signal to obtain a quantitative value of the amount of analyte; and processing the values to provide a differential assessment between the magnetically-labelled analyte. The device includes a magnetic reader with at least one magnetic sensor, such as a giant magnetoresistive sensor. The magnetic sensor can be directly or indirectly coupled to a lock-in amplifier configured to perform phase-sensitive detection and enhance the signal-to-noise ratio of weak magnetic signals. A system, microfluidics device, lateral flow immunoassay test strip and kit are also provided.

The invention relates to a bionic tear sensing device. The bionic tear sensing device comprises a base, a cover body, a tear collecting unit and an immunochromatography test strip, the tear collection unit designed by the invention has a bionic flow channel design simulating a lizard horn structure, tears of eyes can be directionally collected and conveyed to the tear collection chamber through the bionic flow channel structure, and the collection efficiency of the tears is effectively improved. The invention further provides an intelligent deep learning tear testing system which comprises the bionic tear sensing device, an image collecting and processing module, an intelligent image data analysis module and a terminal, and the system can convert a concentration signal into a color change signal and can detect the concentration of the tear biomarker based on the color change signal. The system further comprises a machine learning classification module, and the technical problem of improving the test precision based on a small number of samples is solved through the machine learning classification module.

The invention belongs to the technical field of microbiological detection, and particularly relates to a centrifugal multiple microbiological detection paper chip and a detection device. The multiple microbiological detection paper chip mainly comprises a micro-fluidic chip upper layer, a micro-fluidic chip lower layer and a chromatographic test strip arranged between the micro-fluidic chip upper layer and the micro-fluidic chip lower layer, a liquid flowing path is etched on the upper layer of the micro-fluidic chip; a liquid flowing path is etched on the micro-fluidic chip lower layer, detection areas for arranging a chromatography test strip group are distributed along the circumferential direction, and when the micro-fluidic chip upper layer and the micro-fluidic chip lower layer are mounted and attached, the detection areas are isolated from each other; the chromatographic test strip group comprises a sample pad and at least one piece of chromatographic test paper connected to the sample pad.

The invention discloses a testing device which comprises a cavity used for receiving a liquid sample, a cover body, the cover body is used for sealing the cavity, the cover body further comprises a carrier with a groove, the carrier is used for receiving and holding a test strip, the cover body further comprises a hole, the hole is communicated with the groove, and the hole is communicated with the groove. The cover body is provided with a mark, the connecting line between the mark and the hole is the shortest distance, and when a test is carried out, the mark is set to indicate an inclined direction, so that a liquid sample is in contact with a test area of the test strip in the groove, and by adopting the device, the test can be rapidly carried out, the operation is simple and convenient, and the test efficiency is improved. And the test result is more accurate.

The invention relates to a gingival crevicular fluid collection device and method and a manufacturing method of a sampling probe, and belongs to the field of gingival crevicular fluid collection. The gingival crevicular fluid collection device comprises the sampling probe, and the sampling probe comprises a needle body matched with the extension form of a gingival crevicular bottom; the sampling test paper covers the needle body; when the sampling probe enters the gingival sulcus bottom, the sampling test paper absorbs liquid in the gingival sulcus bottom. According to the invention, the sampling probe fitting the trend of the gingival sulcus is adopted, and the range of the probe extends from the proximal middle to the distal middle of the cheek (tongue) side, so that an operator can simultaneously collect a plurality of sites, the gingival sulcus epithelium is not easy to puncture, non-specific exudation is reduced, and the accuracy and efficiency of gingival sulcus fluid collection are improved.

This invention provides an assembled high-throughput immunochromatographic test strip array sample application device, comprising a 96-well plate fixing bracket (1) and a test strip support plate (2); immunochromatographic test strips (3) are arranged and fixed by slots (4) and limiting blocks (5) on the test strip support plate (2), with their sample application areas (6) protruding from the test strip support plate (2); multiple test strip support plates (2) are inserted into the slots (7) of the 96-well plate fixing bracket (1) to form a multi-channel immunochromatographic test strip array sample application device. This device can be used for high-throughput sample application in immunochromatographic detection.

The utility model discloses a blood detection device. The blood detection device comprises a shell, test paper and a cap, the shell comprises an upper shell and a lower shell which are fixedly connected, a containing cavity is formed between the upper shell and the lower shell, the test paper is located in the containing cavity, a blood sampling head is formed at the front end of the shell, a liquid inlet is formed in the blood sampling head, and the liquid inlet is communicated with the containing cavity through a capillary structure and a premixing cavity in sequence; a hydrophobic coating belt arranged in the left-right direction is arranged on the front cavity wall of the premixing cavity, and an air hole communicated with the containing cavity is formed in the rear end of the shell; the front end of the shell is sleeved with the cap, a liquid storage bag is arranged at the bottom in the cap, and buffer liquid is stored in the liquid storage bag. The blood detection device can realize integration of sample collection and sample treatment, and has the advantages of simple structure, low manufacturing cost, convenience in use, high detection success rate, high detection accuracy and the like.

This application discloses a sample analyzer and its control method. The analyzer includes a test strip providing device, a test strip transferring device, a sample application device, an information acquisition device, and a controller. The test strip includes a substrate, a detection area disposed on the substrate for dry chemical detection of the sample, a first identifier indicating manufacturer information, and a second identifier indicating test strip specifications. The controller controls the sample application device to apply the sample to the detection area of ​​the test strip for a dry chemical reaction, and controls the information acquisition device to acquire the detection information of the detection area, the manufacturer information of the first identifier, and the test strip specifications of the second identifier after the dry chemical reaction is completed. Based on the detection information, manufacturer information, and test strip specifications, the controller obtains and outputs the detection results, ensuring that each entered test strip information corresponds one-to-one with the currently used test strip, thus improving the accuracy of the detection results.

The present disclosure relates to a turning device, comprising: a driving device; a test disc connected to the driving device, the outer ring of the test disc being spirally shaped so that the outer diameter of the test disc gradually increases; a test strip circumferentially arranged on the outer ring of the test disc; a detection device arranged on one side of the outer ring of the test disc for measuring first detection data of the distance between the detection device and the test strip, wherein by rotating the test disc, the distance between the detection device and the test strip changes so that the first detection data changes, thereby obtaining a correspondence between the first detection data and the distance between the detection device and the test strip as a standard value; the test strip is further configured to be arranged on a shaft to be tested, the detection device being configured to be arranged on one side of the shaft to measure second detection data of the distance between the detection device and the test strip and compare the second detection data with the standard value to obtain the swing of the shaft; and a plurality of test points are provided on the test strip to ensure that the second detection data corresponds to the position of the shaft. The present disclosure can avoid errors caused by manual operation.

The present disclosure provides a mixed analyte test meter, the mixed analyte test meter includes a processor, the processor is operatively connected to a memory, a measurement signal generator, a measurement signal receiver and a short-range wireless transceiver. The processor executes firmware instructions in the memory to: operate the measurement signal generator to apply an electrical signal to a sample placed on an electrochemical test strip via a port; receive a signal measurement value from the measurement signal receiver in response to a predetermined sequence of electrical signals; and use the short-range wireless transceiver to transmit data corresponding to a plurality of signal measurement values ​​to an external computing device, wherein the processor does not identify the measurement value of the analyte in the sample based on the plurality of signal measurement values.

A rapid diagnostic device for detecting multiple biomarkers in bodily fluid samples, particularly useful for disease screening including breast cancer. The device comprises a housing containing at least one test strip with a sample receiving zone, conjugate pad, and multiple test zones. The test strip utilizes specific materials including Cytiva GF / DVA and Ahlstrom 1667 sample pads, an Ahlstrom 6613 conjugate pad with carboxylated 150 nm gold nanoshell conjugates, and a Sartorius CN140 membrane with precisely positioned test and control zones. The device simultaneously detects multiple biomarkers, such as hCG and CA-15-3, using specific antibodies. Features include a built-in safety lancet, integrated buffer system, and compatibility with various sample types. Results are available within ten minutes, with options for quantitative analysis via a dedicated reader or smartphone application. This multi-biomarker approach potentially improves screening accuracy compared to single-marker tests, offering versatility for detecting various medical conditions.

To provide a novel method of preventing fluorescence fading, lateral flow assay test strip, lateral flow assay device, and lateral flow assay kit.SOLUTION: A method of preventing fluorescence fading is provided, involving allowing (A) a dry fluorescent substance or fluorescent label and (B) a dry colorant to coexist.SELECTED DRAWING: Figure 1-1

The utility model discloses an inspection test strip storage device which comprises a supporting bottom plate, an installation frame is arranged on the supporting bottom plate, an installation idler wheel is rotationally arranged on the installation frame, a supporting frame is arranged at the top end of the installation frame, a display wheel is arranged on the supporting frame, display labels are arranged on the display wheel in an annular array mode, and installation shafts are arranged on the two sides of the display wheel. A mounting groove is formed in the supporting frame in a matched mode, the mounting shaft is rotationally located in the mounting groove, a damping gasket matched with the mounting shaft is arranged on the inner wall of the mounting groove, and a transparent protective cover is arranged at the end, away from the mounting frame, of the supporting bottom plate in a matched mode and provided with a clamping opening. According to the utility model, the test strip can be stably placed in an observation stage after the detection liquid is dropwise added, the mounting and the dismounting are convenient, and meanwhile, the marking and the classification can be quickly carried out.

A method of evaluating suitability of lighting conditions for detecting an analyte in a sample using a mobile device camera. A test strip is provided for detecting the analyte. A first image of the test strip is captured while an illumination source of the mobile device is turned off and a second image of the test strip is captured while the illumination source is turned on. A sample is applied to the test strip and the first and second images are compared to thereby determine the difference in lighting conditions between the first image and the second image. The comparison is used to derive information on suitability of the lighting conditions for analyte detection. The lighting conditions are indicated as suitable when a predetermined threshold amount of light intensity used for illumination of the test strip originates from the illumination source.

The utility model discloses a polyurethane roller 90-degree peeling test fixture, which comprises a roller core, a first connector and a second connector, the first connector is provided with a concave accommodating cavity, a transverse limiting rod is arranged in the concave accommodating cavity, the roller core is sleeved on the transverse limiting rod, the second connector comprises an adapter and two clamping plates, and the two clamping plates are connected with the adapter. The two clamping plates are provided with locking rod bolt assemblies and lifting rods, one end of the adapter is arranged on the lifting rods in a sleeving mode, the other end of the adapter is provided with a second connecting part connected with a tensile machine, the first connector is further provided with a first connecting part connected with the tensile machine, and the surface of the wheel core is bonded with one end of a polyurethane test strip. And the other end of the polyurethane test strip is arranged between the two clamping plates and is clamped and fixed through a lock rod bolt assembly. The device is accurate in test data, wide in application range, high in universality, stable and reliable.

The utility model discloses a strip withdrawing light reflection method dry chemical test card device which comprises a first plate body, a spring and a sliding block, the first plate body is provided with a bearing plane, the sliding block is arranged on the first plate body in a sliding mode, one end of the spring abuts against the sliding block, and the other end of the spring abuts against the first plate body. The first plate body is provided with two clamping protrusions, the two clamping protrusions are distributed in a splayed shape, the bearing plane is located in front of the two clamping protrusions, the first plate body is provided with a detection through hole, the first plate body is provided with a dustproof plate, the dustproof plate is tightly attached to a hole opening of the detection through hole, and the detection through hole is provided with a clamping groove. The dustproof plate is partially transparent or completely transparent. The device has the following beneficial effects that the test strip clamped between the two clamping bulges can slip by pushing the sliding block, and the device is convenient to use and operate.

The invention discloses a kit and a method for rapidly detecting streptococcus suis and Graisseria parasuis based on a dual LAMP-LFD (loop-mediated isothermal amplification-lateral flow dipstick) technology, and belongs to the field of molecular biological detection. According to the method, a double LAMP primer combination is used for amplifying a gdh gene of streptococcus suis and an infB gene of Graisseria parasuis, and rapid detection is carried out by combining a transverse flow test strip. The kit comprises a dual LAMP primer combination (SEQ ID No.1-SEQ ID No.8), and an LAMP reaction premix solution, a Bst II DNA polymerase, positive and negative controls, an amplification product diluent (ddH2O) and a transverse flow test strip which can be added according to requirements, and can also comprise internal standard DNA, a genome DNA degrading enzyme and specially designed nanoparticles. By means of the automatic temperature control device, the method can complete the whole process from sample treatment to result judgment within 45 minutes, and is suitable for on-site rapid detection. The invention provides an efficient, simple and convenient detection scheme, rapid diagnosis of the swine streptococcosis and the glaisseria parasuis can be achieved, and effective technical support is provided for prevention and control work of the swine streptococcosis and the glaisseria parasuis.

This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for water testing. A drone attachment detects a suitable testing region in a body of water using one or more sensors. The drone attachment deploys a test strip into the suitable testing region in the body of water. The drone attachment performs a water testing while the test strip is inside the body of water. The drone attachment retracts the test strip from the body of water after a testing period is over.

The utility model relates to the technical field of medical instruments, in particular to a single-motor urine test paper detection belt unloading device which comprises a motor, a fixing frame base, a fixing frame upper cover, a rotating guide seat, a sliding seat, a test paper rotating wheel, a detection optocoupler, a detection head module and a pre-pressing module, when detection begins, the motor drives the sliding seat on which the test strip is placed to horizontally move inwards through a gear and rack structure, after the test strip is detected by the detection head module, the test strip rotating wheel and the rotating guide seat are matched to move, and the test strip rotating wheel rotates around the rotating shaft to unload the test strip, so that the test strip is dropped and unloaded; after the sliding seat reaches the position of the detection optocoupler, the motor rotates reversely, the test paper rotating wheel is separated from the matching of the rotating guide seat, the sliding seat returns to the initial position, and a new round of detection is started, the detection and belt unloading device realizes the material returning function at low cost by using a mechanical structure in a small-size cavity, is stable and reliable, and replaces manual loading and unloading of the urine test paper.

The application discloses a photothermal lateral flow analysis device for simultaneously detecting multiple pathogenic bacteria and application thereof. The device comprises a test strip, n photothermal signal probes, an 808nm plane laser light source and a thermal detection device, the n photothermal signal probes are prepared by respectively adsorbing n pathogenic bacteria antibodies, i.e. first primary antibodies, on the surface of CuS@SnS2-Au composite, and n is greater than or equal to 2; the second primary antibodies of the n pathogenic bacteria to be detected are sequentially fixed on the detection area of the test strip, and the second primary antibodies of the n pathogenic bacteria to be detected are sequentially fixed on the detection area of the test strip. The application steps are as follows: the n photothermal signal probes, the sample liquid to be detected and the buffer are mixed, the sample pad end of the test strip is inserted into the mixed solution for chromatography, the whole detection area is irradiated by the 808nm plane laser, and the photothermal temperature of the detection area is collected by a thermal imaging or temperature measuring device; standard curves are established according to the temperature and the concentration of the n pathogenic bacteria to be detected, and photothermal qualitative and quantitative analysis of the n pathogenic bacteria to be detected is carried out.

The utility model relates to the technical field of food detection, and provides a test strip subpackaging device which comprises a material placing table, a subpackaging mechanism and a material storage box, a table top of the material placing table is used for placing a plurality of test strips to be subpackaged, the material storage box is used for being placed at a material storage station and is provided with a plurality of clamping grooves, the subpackaging mechanism is installed between the material placing table and the material storage station, and the clamping grooves are used for clamping the test strips to be subpackaged. The test strip picking device is used for picking up test strips and inserting the test strips into the corresponding clamping grooves. According to the test strip subpackaging device provided by the utility model, the table surface of the material placing table is used for placing a plurality of test strips to be subpackaged, the material storage box is provided with a plurality of clamping grooves for accommodating the test strips, and the subpackaging mechanism is arranged between the material placing table and the material storage station; according to the test strip split charging device, the plurality of test strips on the table top of the material placing table are transferred to the material storage station and inserted into the corresponding clamping grooves, so that split charging of the plurality of test strips is realized, excessive manual participation is not needed, the split charging efficiency of the test strips is improved, and orderly test of the test strips is ensured.