Its macromolecule and good viscoelasticity help lubricate,cover the barrier,buffer sress and inhibit the inflammatory response in the articular cavity.A nd it can stimulate its own synovial membrane to produce sodium hyaloronate of hiah molecular weight,which helps alleviate arthralgia,increase the range of mobility,eliminate synovial inflammation and delay the devolopment of the disease.It can used as a joint funtion improving agent for joint lubrication and protection of articular cartilage,and assisting the treatment of osteoarthrosis.