Nucleic acid extraction device

Abstract

The utility model relates to a nucleic acid extraction device which comprises a box body, a cover body and a sampler, the box body is provided with a first end face, a plurality of cavities are formed in the box body, and each cavity penetrates through the first end face; the multiple cavities are arranged at intervals in the first direction, the cover body is in sliding connection with the end, where the first end face is located, of the box body, the cover body can seal openings of the multiple cavities, the cover body is provided with a penetrating penetrating hole, and the cover body and the box body can relatively slide in the first direction so that the penetrating hole can be opposite to the opening of any cavity. The sampler can be inserted into or withdrawn from the cavity communicated with the penetrating hole through the penetrating hole, can be in sealing fit with the hole wall of the penetrating hole, and is used for sucking liquid in the cavity or injecting liquid into the cavity. The nucleic acid extraction device can perform nucleic acid extraction operation in a sealed environment, so that the probability of pollution of a to-be-detected sample in an experiment process can be reduced, the accuracy of extraction of the to-be-detected sample is improved, and the physiological health of operators is guaranteed.

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