Sodium Hyaluronate, which is a polymer polysaccharides of biological materials formed by N-acetyl glucosamine and glucuronic acid through iterative connected, has a high degree of viscoelasticity, plasticity, permeability and good biocompatibility. This product is suitable for all levels of joint disease and particularly be effective in the joints needed for regular interaction, and is manufactured with raw material of comb based on the process of fine biochemical technology, separation, purification and refining. The gel contains 1% HMW of sodium hyaluronate and physiological buffer. This product, which is a colorless, odorless, sterile, pyrogen free transparent viscous liquid, adopts the aseptic processing technology to filter sterilization.