9 results about "Antigen assays" patented technology

This invention discloses a method and system for interpreting the results of multi-antigen test strips based on artificial intelligence visual recognition, belonging to the field of artificial intelligence detection technology. The method includes acquiring continuous images of radial multi-antigen test strips, performing quality assessment on the images, and selecting target analysis images; locating the center point of the test strip card based on the target analysis images, identifying the direction and number of each detection arm, establishing a polar coordinate system, and performing geometric correction on the images according to the polar coordinate system; segmenting the fan-shaped regions of each detection arm according to the polar coordinate system, locating the control line and test line in each detection arm, and obtaining a set of regions of interest for the strips; extracting the visual features of the set of regions of interest for the strips, and normalizing the test line features based on the corresponding features of the control line in the same detection arm. This invention constructs a polar coordinate correction and same-arm normalization mechanism, integrating artificial intelligence interpretation and a time-series stabilization mechanism to achieve high-precision and interpretable intelligent interpretation of radial multi-antigen test strips.

A disclosed lanthanide fluorescent antigen kit based on monkey pox virus detection comprises an antigen kit, the interior of the antigen kit is fixedly connected with a fixed placing frame, the top of the fixed placing frame is provided with two concave grooves, and each concave groove is internally provided with a plurality of antigen reagent sampling mechanisms; a clamping mechanism is arranged at a position opposite to the bottom end of the antigen reagent sampling mechanism; and an ejection mechanism is arranged at the bottom end of the clamping mechanism, the clamping mechanism comprises a clamping round frame fixedly connected with the bottom end of the interior of the concave groove, and a plurality of fixed rectangular shells are arranged at the top end of the interior of the clamping round frame. According to the scheme, a lanthanide fluorescent antigen reagent test tube for detecting the monkey pox virus is conveniently placed in a clamping round frame on the fluorescent antigen kit, and the lanthanide fluorescent antigen reagent test tube for detecting the monkey pox virus is extruded and clamped by a movable extrusion roller through telescopic matching of rectangular strips in a plurality of fixed rectangular shells.

The application discloses an aptamer-nano gold test strip for screening human pulmonary tuberculosis and an application thereof, and belongs to the technical field of biological detection. The application successfully constructs an aptamer-nano gold test strip for screening human pulmonary tuberculosis, realizes rapid detection of a pulmonary tuberculosis marker ESAT-6 antigen, adopts mercapto-modified aptamer to modify nano gold to form stable gold label probes, adopts a mixed solution composed of a biotin-modified aptamer solution and a streptavidin solution, and constructs an ESAT-6 antigen test strip by using an ESAT-6 antigen solution. The constructed test strip has good sensitivity in ESAT-6 antigen detection, has good detection effect in the antigen concentration range of 100 pg / mL-500 pg / mL, and has good specificity, stability, repeatability and accuracy.

The utility model discloses an automatic sample adding device for cell antibody detection, and particularly relates to the technical field of medical scientific research instruments, the automatic sample adding device comprises a supporting plate, a top plate is fixedly arranged on the front side of the supporting plate, a first electric push rod is fixedly arranged at the bottom of the top plate, and a U-shaped plate is fixedly arranged at the output end of the first electric push rod; a sample adding assembly is arranged at the bottom of the U-shaped plate, a sliding frame is fixedly arranged at the top of the supporting plate, a sliding block is arranged at the top of the sliding frame in a sliding mode, a glass dish is rotationally connected to the top of the sliding block, two concave blocks are arranged on one side of the glass dish, the two concave blocks are fixedly connected with the sliding block, and a moving assembly is arranged on the front side of the sliding frame. According to the utility model, the sample adding assembly is arranged, so that the functions of more accurately controlling the suction amount, the injection speed and the injection force of an antigen sample are realized, and the problem that the test result is easily influenced because the force and the dosage of sample adding each time are generally different when a cell antigen test is manually detected is solved.

A method of assessing canine expression profiles of miRNA markers and using predictive classification algorithms to diagnose heartworm infection. The analysis of the expression level of specific miRNAs enables early detection of the heartworm infection, including low-burden and male-only infections, which are often missed by antigen tests.

The application discloses a novel coronavirus colloidal gold antigen detection method which can be supervised, and comprises the following steps: S1, preparing a novel coronavirus colloidal gold antigen test paper card with an interference band, and storing band position information; S2, a user tests a novel coronavirus antigen and uploads personal information and test paper card test result information; and S3, feeding back an antigen detection result according to the band position information and the test paper card test result information, and storing the personal information and the antigen detection result. The application has the beneficial effect that the user cannot directly read the antigen detection result by preparing the novel coronavirus colloidal gold antigen test paper card with the interference band, and must upload the personal information and the test result, obtain the antigen detection result by searching a record module and comparing the band position information, and store the personal information and the antigen detection result to realize supervision on the antigen detection result, thereby avoiding the defect that the antigen detection result cannot be supervised in the prior art.

The application belongs to the technical field of biomedicine, and specifically discloses a squamous cell carcinoma antigen determination kit and application, which comprises anti-reagent A, anti-reagent B and magnetic micro-particle reagent, wherein the anti-reagent A is a biotin-labeled squamous cell carcinoma antigen antibody; the anti-reagent B is an alkaline phosphatase-labeled squamous cell carcinoma antigen antibody; the squamous cell carcinoma antigen determination kit can effectively detect the concentration of squamous cell carcinoma antigen (SCC) in serum and plasma samples, and is mainly used for the treatment monitoring of cervical cancer, non-small cell carcinoma and the like, and has a wide application prospect.

To provide a method, a composition and a system for testing a fecal sample containing a small amount of human fecal specimen for a plurality of different marker analytes, for example, a plurality of different human proteins, nucleic acids, and other molecular marker analytes.SOLUTION: There is provided a method for characterizing a human fecal specimen, the method including: (i) providing a dispersed sample containing a small amount of a human fecal specimen dispersed in a predetermined amount of a stabilizing solution; and (ii) analyzing the dispersed sample for various amounts of a plurality of different marker analytes.SELECTED DRAWING: None

The utility model discloses a hepatitis virus antigen rapid detection card which comprises a box body, a plurality of moving plates are slidably mounted in the box body through moving grooves, a sliding rod is slidably mounted on the inner wall of each moving groove through a sliding groove, a sliding sleeve is slidably mounted on the outer wall of each sliding rod, a spring is mounted on the outer wall of each sliding rod, and the moving plates are slidably mounted in the box body through sliding grooves. The two ends of each spring are elastically connected with the inner wall of the corresponding sliding groove and the outer wall of the corresponding sliding sleeve correspondingly, and the upper end face of each sliding sleeve is fixedly connected with the outer wall of the corresponding movable plate through a connecting mechanism. Through the arrangement of the spring, the sliding block, the connecting plate and other components, when the fixing of the moving plate is released, the spring can release elastic potential energy to drive the sliding sleeve to slide on the outer wall of the sliding rod, and then the sliding sleeve drives the moving plate to move outwards in the moving groove through the connecting plate, so that the exposed area of the sampling plate can be increased; and a sample can be contacted with a chemical reagent on the sampling plate more easily and fully, so that the detection efficiency can be improved.