医疗器械板块1月22日跌0.08%，爱舍伦领跌，主力资金净流出3.32亿元

Market Overview - The medical device sector experienced a slight decline of 0.08% on January 22, with Aisheren leading the drop [1] - The Shanghai Composite Index closed at 4122.58, up 0.14%, while the Shenzhen Component Index closed at 14327.05, up 0.5% [1] Top Performers - Baolait (300246) saw a significant increase of 11.93%, closing at 14.64 with a trading volume of 374,600 shares and a transaction value of 530 million [1] - Aojing Medical (688613) rose by 3.65%, closing at 24.12 with a trading volume of 56,300 shares and a transaction value of 134 million [1] - Adit (301580) increased by 3.64%, closing at 53.79 with a trading volume of 42,100 shares and a transaction value of 222 million [1] Underperformers - Aisheren (920050) experienced the largest decline of 12.17%, closing at 38.68 with a trading volume of 86,600 shares and a transaction value of 341 million [2] - Shuoshi Bio (688399) fell by 6.39%, closing at 79.42 with a trading volume of 46,300 shares and a transaction value of 374 million [2] - Tianchen Medical (688013) decreased by 3.78%, closing at 44.25 with a trading volume of 25,900 shares and a transaction value of 114 million [2] Capital Flow - The medical device sector saw a net outflow of 332 million from institutional investors, while retail investors contributed a net inflow of 152 million [2] - The top stocks by net inflow from retail investors included Guanhao Bio (300238) with a net inflow of 16.41 million [3] - Institutional investors showed a strong net inflow in Lianying Medical (688271) with 63.88 million, while retail investors had a net outflow of 68.63 million [3]