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: 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: A sample crusher, including a main body housing and an electric motor arranged in the main body housing. A swing mechanism is further arranged in the main body housing. The swing mechanism includes a transmission shaft, a swing disk for allowing a grinding tube to be placed thereon, and a circumferential limiting component. The transmission shaft is driven by the electric motor to rotate, an obliquely arranged bearing is sleeved on the transmission shaft, an included angle is formed between an axis of the bearing and an axis of the transmission shaft, the swing disk is mounted on the bearing, the swing disk and the bearing are concentrically arranged, and the swing disk is connected to the circumferential limiting component.

Abstract: Method and apparatus for electronic detection and determination includes detecting a signal T0 in a detection zone and a signal R0 in a reference zone before a sample is added; adding a sample and detecting the signals in each of the detection zone and the reference zone at an interval of a second preset period; calculating a judgement value based on 2k immediately previous signals in each of the detection zone and the reference zone, the signal T0 in the detection zone before the sample is added, and the signal R0 in the reference zone before the sample is added, each time when k successive signals are detected in each of the detection zone and the reference zone; and determining a judgement result based on m successive judgement values and a preset result threshold corresponding to a current detection time.

Abstract: An analyzing and reading device and an analyzing and reading method, for reading and analyzing a test strip for assay detection are disclosed. The test strip has a detection zone and a blank zone, the device includes a photoelectric detection circuit and a processor, wherein the photoelectric detection circuit includes at least two light sources which locate corresponding to the positions of the detection zone and the blank zone of the test strip and are able to emit lights corresponding to the detection zone and blank zone of the test strip, and at least one optical detectors which receive reflected lights from the above two zones; wherein lights emitted by the at least two light sources irradiate the detection zone and blank zone of the strip and are reflected therefrom, and then are received by the optical detector, which in turn feedback the detection information to the processor; the processor making analysis and decision based on the detection information received.

Abstract: An analyzing and reading device and an analyzing and reading method, for reading and analyzing a test strip for assay detection are disclosed. The test strip has a detection zone and a blank zone, the device includes a photoelectric detection circuit and a processor, wherein the photoelectric detection circuit includes at least two light sources which locate corresponding to the positions of the detection zone and the blank zone of the test strip and are able to emit lights corresponding to the detection zone and blank zone of the test strip, and at least one optical detectors which receive reflected lights from the above two zones; wherein lights emitted by the at least two light sources irradiate the detection zone and blank zone of the strip and are reflected therefrom, and then are received by the optical detector, which in turn feedback the detection information to the processor; the processor making analysis and decision based on the detection information received.

Abstract: A device and method for determining the assay result is disclosed. The device includes a photoelectric detection circuit and a processor, and an optical detection device which is set with a detection zone and a blank zone for measuring assay results, and the photoelectric detection circuit detects the light-reflection intensity signal, and feeds back the detected information to the processor, and the processor is preset with a threshold value changing with time, and determined value processed by the processor is compared with the preset threshold value to obtain the result of assay. The method for determining the assay result display the result when confirmed determined value is bigger than the preset threshold value or can not reach preset threshold value within a fixed time or detected signal can not be determined, wherein the threshold value changes with the time. The device and method for determining the assay result work more efficiently, measure more accurately and cost less than the prior art.

Abstract: A method and system for intelligently identifying and reading an immunochromatographic strip is disclosed.