The council is authorized to issue, sell and deliver its bonds, in accordance with the terms of the Hospital Equipment Loan Act, for the purpose of paying for or making loans to participating health facilities, banks, savings and loan associations and other entities for the financing or refinancing of all or any part of the cost of health-related equipment and any other purposes authorized by the Hospital Equipment Loan Act. In addition, the council has the power to issue from time to time bonds to renew or to pay bonds, including any interest, and, whenever it deems refunding expedient, to refund any bonds by the issuance of new bonds and to issue bonds partly to refund outstanding bonds and partly for another of its purposes. The refunding bonds may be sold and the proceeds applied to the purchase, redemption or payment of the bonds to be refunded or may be exchanged for the bonds to be refunded.