Medical Device Maker Highlights China Risk as Chinese U.S. IPOs Resume Key Takeaways: – Meihua International files updated prospectus highlighting China oversight risk in latest filing for its modest $57 million U.S. IPO – Hotel operator Atour makes similar updated filing for U.S. IPO plan to raise $350 million, valuing the company at more than $2 billion By Doug Young It’s a new week, with yet more signs that the China-U.S. IPO pipeline is slowly creaking back to life. This time it’s a relatively small IPO by a medical device maker named Meihua International Medical Technologies Co. Ltd. that’s making…