The binding certificate is not filled in correctly, and it is not supported for local use with family. According to the news of medical insurance inquiry, the new signature of Shanghai Medical Insurance Company failed because the binding certificate was incorrectly filled in, and the local government did not support it to be used with family members. Medical insurance refers to basic medical insurance, which is a social insurance system established to compensate workers for economic losses caused by disease risks. The medical insurance fund is established through the contributions of employers and individuals. After the insured person has medical expenses, the medical insurance institution will give certain economic compensation.