Diagnostic detection device and method for detecting human chorionic gonadotropin or derivative in urine, blood, saliva, or other body fluid

摘要

A diagnostic detection device and method with higher sensitivity to detect human chorionic gonadotropin (hCG) or derivative in urine, blood, saliva, or other body fluid for pregnancy test, detection of hCG doping in sports, or diagnosis of other diseases and conditions related to hCG abnormalities is disclosed. It harnesses the power of material capable of transporting specimen by capillary action, sandwich complex technique with a mobile anti-hCG antibody conjugated with a specific marker, hCG or derivative, and an immobile anti-hCG antibody, and a highly sensitive detection system for the marker or change of conditions of the marker. It may only comprise sandwich complex technique and detection system. It may simply comprise immobile anti-hCG antibody and detection system. It also can comprise immobile anti-hCG antibody and mobile standard hCG or derivative conjugated with a specific marker, and the latter competes against counterpart from specimen for a limited amount of anti-hCG antibody.