医疗器械板块10月29日跌0.42%，赛诺医疗领跌，主力资金净流出5.22亿元

Core Viewpoint - The medical device sector experienced a decline of 0.42% on October 29, with Sainuo Medical leading the drop, while the overall market indices showed positive performance [1]. Group 1: Market Performance - On October 29, the Shanghai Composite Index closed at 4016.33, up by 0.7% [1]. - The Shenzhen Component Index closed at 13691.38, up by 1.95% [1]. Group 2: Capital Flow - The medical device sector saw a net outflow of 522 million yuan from main funds, while retail investors contributed a net inflow of 193 million yuan [2]. - Speculative funds recorded a net inflow of 329 million yuan into the medical device sector [2].