According to the Regulations for the Supervision and Administration of Medical Devices, medical devices need to be filed or registered in order to be legally sold and used. Class I medical devices are those with low risk and routine use, but still need to go through the filing process. If a Class I medical device has not been filed, i.e., it has not been approved and recognized by the relevant authorities, it does not meet the requirements of the regulations. Therefore, a class I medical device that has not been filed cannot win a bid, nor can it be legally sold or used.