Abstract: An in vitro analysis diagnostic instrument, and a microfluidic chip and method for sorting and enriching circulating tumor cells. The microfluidic chip includes a functional board. A first side face of the functional board is provided with a primary sorting channel in communication with a sample inlet and a fine screening channel in communication with the primary sorting channel, and a deepened channel is dug on the side of the fine screening channel away from the aggregation of circulating tumor cells. The deepened channel is arranged in an extension direction of the fine screening channel, and the deepened channel has a depth greater than that of the fine screening channel.

Abstract: This application provides a packet forwarding method and a related apparatus. The method may include: A first device receives a first packet sent by a second device in a second cycle; and the first device determines a target cycle corresponding to the first packet based on cycle modification information corresponding to the first packet and a cycle mapping relationship, and forwards the first packet in the target cycle corresponding to the first packet.

Abstract: The invention discloses a liquid quantifying device which comprises a base body and a liquid quantifying area arranged on the base body; the liquid quantifying area is provided with a preset volume, two ends of the liquid quantifying area are respectively provided with a liquid quantitative inlet and a liquid quantitative outlet, the liquid flows into the liquid quantifying area from the liquid quantitative inlet and reaches the liquid quantitative outlet after the liquid quantifying area is filled; and a liquid identification device is arranged at a relevant position of the liquid quantitative outlet and used for identifying the liquid reaching the liquid quantitative outlet. The invention also discloses a use of the liquid quantifying device in a microfluidic chip. The invention can improve the accuracy of quantification and detection.

Abstract: An in vitro diagnostic analyzer and a reagent card. The reagent card includes a reagent card body and a mounting body. The mounting body includes a mounting hole configured to be sleeved on receive a sample tube, a hollow needle disposed in the mounting hole, a sealing portion disposed in the mounting hole, and a gas inlet channel. An end of the hollow needle is capable of being inserted into the sample tube. The sealing portion is capable of being in sealing fit with an outer wall of the sample tube. The gas inlet channel includes a gas outlet hole, a gas inlet hole, and a first flow-stopping structure. The gas inlet hole is disposed in a surface of the reagent card body. The first flow-stopping structure is disposed between the gas outlet hole and the gas inlet hole. The gas outlet hole is configured to be in fluid communication with the sample tube mounted on the mounting hole. The reagent card body includes a sample feeding channel, a test chamber, and a venting end.

Abstract: A sample loading bottom plate (300,600, 810, 820, 831) and an immunochromatography detection apparatus (10) containing the sample loading bottom plate (300, 600, 810, 820, 831). During design of the sample loading bottom plate (300, 600, 810, 820, 831), a sample loading portion (310, 833) having a multistage-step structure is additionally provided on a sample loading region and comprises multistage steps having different heights, wherein a base surface (311) is used for carrying a sample solution.

Abstract: The present invention relates to an immunochromatographic assay device, comprising: a cover plate; an immunochromatographic assay kit; and a sample loading pad. A wet zone is defined by the cover plate and at least part of a sample loading portion of the sample loading pad disposed close to an installation position of the immunochromatographic assay kit. The height of the wet zone satisfies the following condition: when flowing into the wet zone, a sample solution is driven by capillary action to flow from a surface of the sample loading portion toward the immunochromatographic assay kit.

Abstract: The present invention discloses a micro-fluidic chip, comprising a chip main body, a sample inlet, an air inlet, a liquid driving force inlet, an air sublet, a main fluid channel and multiple functional chambers provided on the chip main body; the main fluid channel communicates with the multiple functional chambers, and the liquid driving force inlet is used to connect a liquid driving device capable of driving liquid to flow in the main fluid channel and the multiple functional chambers; the micro-fluidic chip of the present invention identifies, positions and quantifies a liquid sample by means of a specific liquid quantification chamber, thereby decreasing chip manufacturing process difficulty, and increasing quantification accuracy, and is particularly suitable for quantification and testing of whole blood samples.

Abstract: The invention discloses a liquid quantifying device which comprises a base body and a liquid quantifying area arranged on the base body; the liquid quantifying area is provided with a preset volume, two ends of the liquid quantifying area are respectively provided with a liquid quantitative inlet and a liquid quantitative outlet, the liquid flows into the liquid quantifying area from the liquid quantitative inlet and reaches the liquid quantitative outlet after the liquid quantifying area is filled; and a liquid identification device is arranged at a relevant position of the liquid quantitative outlet and used for identifying the liquid reaching the liquid quantitative outlet. The invention also discloses a use of the liquid quantifying device in a microfluidic chip. The invention can improve the accuracy of quantification and detection.

Abstract: The present invention discloses a micro-fluidic chip, comprising a chip main body, a sample inlet, a liquid driving force inlet, a main fluid channel and multiple functional chambers provided on the chip main body. The micro-fluidic chip of the present invention identifies, positions and quantifies a liquid by means of a specific liquid quantification chamber, thereby decreasing chip manufacturing process difficulty, and increasing quantification accuracy.