593 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.

A biofluid-based diagnostic screening system and associated methods are disclosed for screening a volume of biofluid of a patient for an at least one medical condition. In at least one embodiment, the system provides a lateral flow test strip, a test housing sized and configured for removably receiving the test strip therewithin, and a user application residing locally in memory on an imaging device and configured for screening a volume of biofluid of a patient, as deposited on the test strip, for an at least one medical condition.

The self-service AIDS detection device comprises a detection box, an auxiliary detection unit, detection test paper, an observation window, a switch button and a blood sampling assembly, the auxiliary detection unit is fixedly installed in the detection box, and the bottom of the detection test paper is fixedly installed at the inner bottom of the detection box. According to the invention, self-help AIDS detection is carried out, the first carriage and the second carriage move back and forth in the opposite direction or the opposite direction, the first carriage and the second carriage move to drive the connecting plate, and then the connecting plate drives the finger squeezing curved plate to squeeze the fingers, so that the punctured fingers continuously flow blood; a displacement toothed plate, a cylindrical gear pair, a bevel gear pair, a transmission shaft rod and an elliptical block are driven to rotate, and the elliptical block rotates to enable a first nitrocellulose membrane and a second nitrocellulose membrane to move in an opening and closing manner, so that blood and a blood diluent are effectively mixed; the mixed liquid flows to the detection test paper along the guide conical cylinder and the guide cylinder, and the detection test paper is used for detecting AIDS.

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.

The invention relates to the technical field of medical detection, in particular to a pet urine detection method, electronic equipment and a storage medium. The method comprises the following steps: acquiring a urine sample of a to-be-detected pet through a sample collection device, and after the urine sample is in contact with preset detection test paper, forming a chromogenic reaction in a detection area of the detection test paper; performing image acquisition on the test paper detection area after the color development reaction through image acquisition equipment to generate a target image; the target image is sent to a server side through a user terminal based on a preset data transmission rule, so that the server side generates a detection report according to the target image, and the detection report is stored in a cloud side; and downloading the detection report, and presenting the detection report on a display interface of the user terminal. Based on the application, pet urine collection and analysis can be carried out in a noninvasive manner at home or at any convenient place, animal pressure is remarkably reduced, animal comfort is improved, convenience is remarkably improved, and time and cost can be saved.

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 the technical field of nucleic acid detection, and discloses an integrated nucleic acid detection device compatible with multiple sample types and a nucleic acid detection method.The nucleic acid detection device comprises multiple cavities, and a saliva sample bin, a plasma sample bin and a nasopharynx swab sample bin are arranged at the top end of a nucleic acid extraction cavity; the test strip detection chamber comprises a first test paper chamber and a second test paper chamber, and the second test paper chamber is in sliding connection with the first test paper chamber; a through hole penetrating through the two end faces of each cavity is formed in each cavity, thorn-shaped structures extending towards the top faces of the cavities are arranged on the side walls of the through holes, the bottom ends of the through holes are sealed through sealing films, and the thorn-shaped structures are used for puncturing the corresponding sealing films; the test paper is fixed in the test paper storage groove of the second test paper chamber, the test paper storage groove is communicated with the through hole in the first test paper chamber, and the test paper strip detection chamber is provided with a detection result output window for outputting a detection result. Detection is easy to operate, the detection process is in a sealed state, environmental pollution is avoided, and various samples can be compatible.

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.

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 provides a saliva detection pen and a use method thereof. The detection pen comprises a circuit device, a liquid absorption rod, a test strip and a control chip, the circuit device comprises a circuit line and an indicator lamp, and the liquid suction rod comprises a liquid suction end and a conveying end; the circuit line is connected with the conveying end of the liquid absorption rod, the indicator lamp and the control chip. When a to-be-detected sample flows and migrates to the conveying end from the liquid absorbing end of the liquid absorbing rod, the circuit is connected, and the indicating lamp prompts in a flickering or normally-on mode; and the control chip is used for controlling the reaction time. According to the saliva detection pen provided by the invention, the saliva detection test strip is combined with the liquid absorption rod, the circuit device and the control chip for use, so that the problem of result errors caused by factors such as inaccurate reading time and dim light is solved.

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 present disclosure relates to a device for performing a lateral flow test on a liquid sample, comprising: a test strip which comprises: a membrane having a first capturing reagent disposed on a first surface at a test position, the first capturing reagent being configured to capture an analyte in the liquid sample; a sample pad disposed on the first surface at a first end of the membrane spaced apart from the test position, the sample pad being configured to receive the liquid sample; and a conjugate pad disposed on the first surface between the sample pad and the test position, the conjugate pad having deposited thereon a catalytic labelling reagent, the catalytic labelling reagent being configured to chemically bind to the analyte; an activation layer disposed over the membrane arranged to contact the first surface upon activation, the activation layer having deposited thereon at least a component of a catalyst substrate, the catalyst substrate being capable of chemically reacting with the catalytic labelling reagent upon activation; and a support structure configured, when the device is in an inactive state, to affix the test strip and the activation layer such that the activation layer is separated from the membrane.

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.