Doctor Wu Jiaqi is the assistant of Doctor Wu.
Wu Jiaqi worked on computer simulations of removing the shrapnel from Tony Stark's chest. In each of her simulations, the patient died.
While Stark was prepping for surgery, Wu Jiaqi approached Doctor Wu and advised him to be careful with the operation, citing the importance of Stark and his reputation if failure occurred. However, Wu was confident in his abilities.
Wu Jiaqi later assisted Doctor Wu in Stark's operation, which was successful.