This culture system utilizes the special affinity difference of biomedical material coating for different cells to achieve the effect of isolating tumor cells from the blood sample. The coating of the system has the characteristic that to make the WBCs adhesion, but the cancer cells in the blood sample suspend in the culture medium, which achieves the effect of separating cancer cells from the blood. The supernatant with the cancer cells can further be isolated from the cultural system for related analysis and detection to achieve early diagnosis and screening.

Inclusion Criteria:

• Patients with lung cancer are between the ages of 20 and 70
• Willing to sign the consent form under the informed consent

Exclusion Criteria:

• Vulnerable Subjects included minors, prisoners, aborigines, pregnant women, people with mental disorders, students, and subordinates, etc.

The study population will include all stages of lung cancer patients between the ages of 20 and 70. Also, to protect the vulnerable subjects, we don't recruit minors, prisoners, aborigines, pregnant women, people with mental disorders, students, and subordinates, etc.