Abstract
A sperm sorter and a sperm sorting method are provided. The sperm sorter includes an inlet chamber, an up-swim chamber, a divergent channel, a recycle chamber and an outlet chamber. The up-swim chamber is communicated between the inlet chamber and the divergent channel. The divergent channel has an entrance terminal close to the up-swim chamber and an exit terminal away from the up-swim chamber, and width and depth of the entrance terminal are respectively less than width and depth of the exit terminal. The recycle chamber is communicated with the exit terminal of the divergent channel. The outlet chamber is communicated with a portion of the divergent that is located between the entrance terminal and the exit terminal.