Shanghai Sanyou Medical. 

Headquartered in Shanghai, China, Shanghai Sanyou Medical Co., Ltd. focuses on the entire lifecycle of orthopedic implants, from their initial research and development through manufacturing and ultimately sales within the Chinese market. The company distributes its medical devices under the Tytus and Sanyou brand names, primarily specializing in spinal and trauma-related implants. Its spinal product line features a broad selection, including anterior cervical plates, anterior and posterior thoracolumbar systems, posterior cervical solutions, and z-minimally invasive products. For trauma injuries, Sanyou Medical offers implant systems designed for various anatomical regions, such as the shoulder and elbow, hip and pelvis, knee, and palm and wrist.