To check the status or information of a medical device's Certificate of Free Sale in the United States, you can do the following:
FDA: FDA provides a medical device database that you can use to search for information on a specific medical device. On FDA**, you can find databases for 510(k) advance market notices, PMA-approved databases, and other related databases. By entering information such as the device's name, model, manufacturer, etc., you can find information related to the medical device, including whether it has obtained a free sale certificate and approval status.
Contact FDA: If you can't find the information you need through FDA**, you can contact FDA directly. The FDA provides contact information that you can contact with the relevant FDA department via email to inquire about the approval status or information for a particular medical device.
Third-party service providers: There are some third-party service providers that may provide services to check the approval status of medical devices. These service providers typically collect information from FDA databases and provide users with a more convenient query interface and services.
It is important to note that it may take time and effort to inquire about the approval status or information of a medical device. Before making an inquiry, it's a good idea to have the relevant information about the medical device, such as name, model, manufacturer, etc., ready to find the information you need faster.