医疗板块三大主线：脑机接口+AI医疗+出海！医疗器械ETF（562600）小幅下行，华兰股份涨逆势领涨7.29%

Group 1 - The A-share market experienced fluctuations on January 19, with the medical device ETF (562600) declining by 0.54% in the afternoon session [1] - Notable stock performances included Hualan Biological Engineering rising by 7.29%, Yirui Technology by 2.34%, Dian Diagnostics by 1.94%, and Aidi Te by 1.82% [1] - The medical device ETF (562600) has seen significant capital inflow, with a net inflow of 125 million yuan over the past five days and 256 million yuan over the past ten days [1] Group 2 - The medical device sector is expected to benefit from opportunities in overseas expansion, brain-computer interfaces, and AI healthcare by 2026 [2] - The overseas business revenue of the second-largest weight stock in the medical device ETF, United Imaging Healthcare, grew by 41.97% year-on-year in the first three quarters of 2025, becoming a significant source of revenue for the company [1][2] - The brain-computer interface market is at a critical turning point, with demand expected to be released, supported by China's 14th Five-Year Plan [2] - AI applications in healthcare are gradually being implemented, with Ant Group's AI health manager AQ reaching over 30 million monthly active users by January 2026 [2] - The medical device ETF (562600) tracks the CSI All-Share Medical Device Index, with a 23.8% allocation to brain-computer interfaces, the highest among similar ETFs, effectively capturing growth opportunities in niche markets [2]