医疗器械板块9月18日跌1.28%，翔宇医疗领跌，主力资金净流出6.36亿元

Market Overview - On September 18, the medical device sector declined by 1.28%, with Xiangyu Medical leading the drop [1] - The Shanghai Composite Index closed at 3831.66, down 1.15%, while the Shenzhen Component Index closed at 13075.66, down 1.06% [1] Stock Performance - Notable gainers in the medical device sector included: - Chutian Technology (300358) with a closing price of 9.02, up 9.33% [1] - Jimin Health (603222) at 13.92, up 5.30% [1] - Toukeng Life (300642) at 25.73, up 4.81% [1] - Major decliners included: - Xiangyu Medical (688626) at 55.86, down 4.81% [2] - Aipeng Medical (300753) at 29.92, down 4.16% [2] - Jiga Development (600807) at 3.26, down 4.12% [2] Capital Flow - The medical device sector experienced a net outflow of 636 million yuan from institutional investors, while retail investors saw a net inflow of 363 million yuan [2][3] - Key stocks with significant capital flow included: - Lianying Medical (688271) with a net inflow of 19.51 million yuan from institutional investors [3] - Jimin Health (603222) with a net inflow of 11.60 million yuan from institutional investors [3] - Huatai Medical (688617) with a net inflow of 40.28 million yuan from institutional investors [3]