BIOCHIP SYSTEM, METHOD FOR DETERMINING SPERM QUALITY AND METHOD FOR SEPARATING SPERM

摘要

A method for determining sperm quality is provided. At least one first microfluidic region and at least one second microfluidic region are provided, which meet at a junction. The second microfluidic region includes a shrunk portion with a width sized to substantially allow only one sperm to pass therethrough. A detector is disposed at the shrunk portion. First and second flow fields are formed in the first and second microfluidic regions, respectively. The first and second flow fields have different directions at the junction. A semen sample is loaded at a semen sample loading end. At least one sperm moves in the first microfluidic region against the direction of the first flow field and at least one sperm moves in the second microfluidic region along the direction of the second flow field. The detector generates a signal upon one sperm in the semen sample passing through the shrunk portion.