1. Center for Reproductive Medicine Women and Children's Hospital of Chongqing Medical University Chongqing Health Center for Women and Children Chongqing 400010 China
2. Chongqing Key Laboratory of Human embryo Engineering Chongqing 400010 China
3. Department of Mechatronics Graduate School of Medicine, Engineering, and Agricultural Sciences University of Yamanashi Yamanashi‐ken 400‐8510 Japan
4. Chongqing Clinical Research Center for Reprodutive Medicine Chongqing 400010 China