Abstract: An automatic loading system for an extraction strip includes: an extraction strip for holding several reagents, a first channel, a second channel parallel to and attached to the first channel, a first hand pushing device for pushing the extraction strip to move in the first channel, a second hand pushing device for pushing the extraction strip to move in the second channel, and a transfer device for transferring the extraction strip from the first channel to the second channel. One end of the first channel is a loading inlet of the extraction strip. One end of the second channel is a grabbing position of the extraction strip. The transfer device is arranged at the other ends of the first channel and the second channel. The first hand pushing device and the second hand pushing device can move transversely and move up and down.

Abstract: A cartridge preprocessing system applied to an automated molecular diagnostics instrument is provided. The cartridge preprocessing system includes a piercing device and a cleaning device. The piercing device includes a drive assembly and a piercing member, and the drive assembly is configured to control the piercing member to alternately move to a piercing station and a cleaning station. The piercing member is configured to pierce a barrier film of a cartridge that moves to the piercing station, and the cleaning device is configured to clean the piercing member that moves to the cleaning station.

Abstract: A nucleic acid extraction and fluorescent PCR detection system, comprising: an extraction strip, an extraction strip loading device for loading the extraction strip, a sample holder loading device for loading and unloading samples, an extraction strip transfer gripper for driving the extraction strip to move to a preset position, a nucleic acid extraction device for purifying the samples to obtain nucleic acids, a PCR detection device for performing fluorescent PCR detection on the nucleic acids, and a control device, wherein the extraction strip loading device, the sample holder loading device, the extraction strip transfer gripper, the nucleic acid extraction device and the PCR detection device are all connected to the control device. The problems of relatively poor flexibility and relatively low detection efficiency of a nucleic acid extraction and detection system can be ameliorated, so that a sample detection process is more flexible and convenient.