11 results about "Dry chemistry" patented technology

The invention discloses a preparation method of a dry chemical reagent for determining the content of beta-hydroxybutyric acid in urine. The preparation method comprises the following steps: S1, preparing a buffer reagent and a protective component; s2, dissolving the biological enzyme and the chromophoric substrate to form a dissolving reagent; s3, coating by using a biological film-forming material to form a coating reagent; s4, by means of equipment, the coating reagent is coated and printed in a pore channel of a specified bottom plate base material in a volume quantification mode; the equipment comprises a single-channel type pipettor, a multi-channel type pipettor, a continuous multi-gear distributor or automatic dot printing equipment. S5, placing the specified bottom plate base material printed with the coating reagent in forced air drying equipment or drying equipment with the same efficiency; and S6, measuring the moisture content after drying and film forming, and judging whether substances containing biologically active enzymes and substrates in the reagent are completely locked to the position of the net-shaped cavernous body structure of the biological film forming material or not based on the moisture content. The invention further discloses application of the dry chemical reagent for determining the content of beta-hydroxybutyric acid in urine, and the dry chemical reagent is applied to a sample formed by urine.

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 invention provides a dual-wavelength dry chemical detection method and system. The method comprises the following steps: acquiring a first reaction stationary point signal of a first to-be-detected substance reaction area of a to-be-detected sample under a first wavelength and a second reaction stationary point signal of the first to-be-detected substance reaction area under a second wavelength; inputting the first reaction stationary point signal into a first concentration quantification model corresponding to the first to-be-detected substance to obtain a first concentration value; comparing the first concentration value with a preset concentration switching threshold value; if the first concentration value is smaller than the concentration switching threshold value, determining a concentration detection result of a first to-be-detected substance in the to-be-detected sample based on the first concentration value; and if the first concentration value is greater than or equal to the concentration switching threshold value, inputting the second reaction stationary point signal into a second concentration quantification model corresponding to the first to-be-detected substance to obtain a second concentration value, and determining a concentration detection result of the first to-be-detected substance in the to-be-detected sample based on the second concentration value. According to the invention, the detection result accuracy of dry chemical detection can be improved.

The utility model provides a kind of equipment for dry chemical chromogenic substrate method detection, it is related to dry chemical analysis inspection equipment technical field.The equipment for dry chemical chromogenic substrate method detection, including base, top isolation component and bottom isolation component, is equipped with test hole on base, top isolation component includes transparent observation board, the top of base is equipped with the first through slot being communicated with test hole, transparent observation board is set in the first through slot, and can be slid into test hole along the first through slot extension direction, and test hole is blocked.Bottom isolation component includes upper plate body and lower plate body, the bottom of base is equipped with the second through slot for sending test paper, second through slot is communicated with test hole, lower plate body is coincident with upper plate body and forms conveying body, test paper groove for placing test paper is equipped on the lower plate body of upper plate body side, conveying body is set in second through slot.The utility model can avoid test paper exposure in external environment, greatly improve the accuracy of detection result.

According to the dry chemical detection device and the dry chemical detection method, after a to-be-detected biological sample is added to a target color block (99) of first dry chemical test paper (91) by a sample adding part (30) through an imaging part (50), the first dry chemical test paper (91) is shot to obtain a plurality of images; the plurality of images at least comprise a first image and a second image, and the shooting moments of the first image and the second image are different; color block information of a target color block (99) of the first dry chemical test paper (91) at different moments is determined at least from the first image and the second image, and a detection result of a test item corresponding to the target color block (99) is calculated based on the color block information of the target color block (99) at different moments, such that the detection result is more accurate.

The invention relates to the technical field of dry chemical detection, in particular to a video multi-mode dry chemical detection system and a video multi-mode dry chemical detection method. The acquisition end is used for acquiring video data of the dry chemical test paper in a reaction process; the server is used for analyzing and processing the video data and generating a processing result; wherein the analysis processing comprises video analysis; and video analysis: analyzing the color difference value of the pixel points at adjacent moments and whether the color difference value is smaller than a preset color difference threshold value, and identifying the color change condition in the reaction area where the pixel points are located. According to the scheme, the whole dry chemical detection reaction process can be collected, the reaction information of the time dimension is obtained, the integrity and accuracy of detection are improved, and application of different scenes is met.

This invention relates to the field of medical devices and discloses a sample analyzer. The sample analyzer includes a transfer container, a first sample dispensing device, a second sample dispensing device, a dry chemistry detection device, a formed element detection device, and a controller. The second sample dispensing device is independent of the first sample dispensing device. The controller is configured to: control the first sample dispensing device to collect at least a portion of a first sample from the first sample container; control the first sample dispensing device to dispense all or part of the collected first sample into the transfer container; control the second sample dispensing device to aspirate at least a portion of the first sample dispensed by the first sample dispensing device from the transfer container; and control the second sample dispensing device to dispense all or part of the aspirated first sample into the dry chemistry detection carrier and / or the formed element detection carrier. This invention can improve the efficiency of batch sample dispensing and detection.

The invention discloses a dry chemical detection device and a dry chemical detection method. An imaging part (50) is used for shooting dry chemical test paper (90) located in a plurality of test paper areas (20); the imaging component (50) has a shooting view capable of covering at least two test paper areas (20), so that dry chemical test paper (90) in the test paper areas (20) in the shooting view can be shot at the same shooting moment, an image containing a plurality of pieces of dry chemical test paper (90) is obtained, and an image shot by the imaging component (50) at at least one shooting moment is obtained; carrying out dry chemical detection according to the image shot at the at least one shooting moment; the imaging component (50) has a shooting view capable of covering the plurality of dry chemical test paper (90), so that the imaging component (50) can shoot the plurality of dry chemical test paper (90) at the same shooting time, and dry chemical detection is carried out according to the test paper state of each dry chemical test paper (90); such as test paper position abnormity judgment, sample adding abnormity judgment, high-value sample judgment, detection result calculation and the like, so that images shot every time are fully utilized.

The invention discloses a dry chemical detection device and method. The detection device comprises a bearing part (10), a sample adding part (30), an imaging part (50) and a processor (70). The bearing component (10) is used for placing dry chemical test paper (90), and the dry chemical test paper (90) is at least provided with a first color block (01) and a second color block (02). The detection method comprises the following steps: simultaneously adding the same biological sample to be detected into the first color block (01) and the second color block (02) of the dry chemical test paper (90); after a to-be-detected biological sample is added to the first color block (01) and the second color block (02) by the sample adding part (30) through the imaging part (50), the dry chemical test paper (90) is shot to obtain a plurality of images, and the plurality of images at least comprise a first image and a second image; and respectively determining information of a first color block (01) and information of a second color block (02) from the first image and the second image, and calculating a detection result of the corresponding test item.

1. The name of the design product: dry chemical analyzer. 2. The use of the design product: using dry chemical technology to detect biochemical indicators. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.