Government allows import of medical devices like oxygen canister for three months with riders Importers have been asked to inform the quantity of imported medical devices to state governments where import is made, immediately after the shipment. Share Via Email | A+A A- By PTI NEW DELHI: The government on Thursday allowed import of 17 medical devices for three months with mandatory declarations immediately after custom clearance and before sale of such products in the domestic market. To meet rising demand in the ongoing pandemic, the government has allowed import of medical devices like nebulizer, oxygen concentrators, oxygen cannister, oxygen cylinders, oxygen generators and ventilators.