Synchrony between the timing of embryo transfer and the timing of a patient’s window of implantation (which has been shown to vary between women) play an important role in a successful transplantation. Meanwhile, about 25.9%-40% of the population with repeated implantation failures have displacements in their implant window. According to the conventional transplantation plan, embryos cannot be accurately implanted in the implant window, resulting in implantation failure. Endometrial receptivity test (YK-ERT^®) can accurately determine the implantation window, optimize the embryo transfer time, assist patients with repeated implantation failures to improve the likelihood of a successful implantation, and avoid embryo waste.

Based on the transplanted endometrium samples results and machine learning analysis technology, a part of samples is randomly selected as the training set, and the rest serve as test set. The ERT test has an accuracy of over 93.33%.

Data shows that YK-ERT^® can yield a significant improvement in pregnancy rates, with rates of up to 60% observed in patients with RIF who underwent endometrial receptivity testing.