Core Viewpoint - Sanxin Medical (300453.SZ) is a national high-tech enterprise focused on the research, development, manufacturing, sales, and service of medical devices for the global market, with current products covering three main areas: blood purification, drug delivery devices, and cardiothoracic surgery, while also expanding into vascular intervention and diabetes fields [1] Group 1 - The company is positioned as a high-tech enterprise in the medical device sector [1] - Current product offerings include blood purification, drug delivery devices, and cardiothoracic surgery [1] - The company is exploring expansion into vascular intervention and diabetes [1] Group 2 - There is currently no involvement in brain-machine interface (human brain engineering) fields [1]