I. Automatic DNA quantitative analysis technology Automatic cell DNA quantitative analysis system can determine the physiological state and pathological changes of cells and detect cancer and precancerous lesions through quantitative detection of genetic material (DNA) ploidy in cell nuclei. It is an effective tool for screening cancer and precancerous lesions, as it can detect changes in DNA content in the nucleus of cells earlier than morphological changes. It can detect a variety of gynecological and non-gynecological clinical cytology specimens, including cervical exfoliated cells. It can also judge the prognosis of tumor and guide the treatment of tumor. Clinical application value Detection of early precancerous cells and cancer cells: In the process of cell malignancy, the content of genetic material (DNA) is changed earlier than the cell morphology, and aneuploid cells exist in 80-90% of malignant solid tumors. The presence of such cells is an important marker indicating early malignant lesions. Therefore, early precancerous cells and cancer cells can be detected by quantitative analysis of cellular DNA through the Quantitative Cellular DNA Analysis System test. Assessment of tumor malignancy and prognosis: The prognosis of integumentary tumors is usually better than that of aneuploid tumors. Guide the treatment of tumors: whether the aneuploid cells disappear after radiotherapy and chemotherapy treatment directly reflects the effectiveness of the treatment. Improve the efficiency of cytology testing: only about 10% of suspicious or positive cases need to be reviewed, reducing the labor intensity of doctors. Main uses 1.For gynecological cervical cancer screening; 2.For non-gynecological other exfoliative cytology of cancer and precancerous lesion detection 3.Wider clinical applications: surface scraping specimen film; secretion or excretion specimen film; in the body surface or body cavity, liquid or tumor entity of needle aspiration puncture examination; endoscopic direct view of brushings and tissue prints.