A majority of Class II devices require a 510(k) premarket notification.
*Source: https://www.fda.gov/medical-devices/classify-your-medical-device/class-i-ii-exemptions
Class II medical devices pose a moderate to high risk to patients and/or intended users, whereas Class I devices pose a low to moderate risk.
Class II medical devices pose a moderate to high risk to patients and/or intended users and require a premarket 510(k) submission, whereas Class III devices pose a high risk and require more extensive clinical evidence in the form of a premarket approval (PMA).
To determine if a device has been cleared or approved by the FDA, check the FDA 510(k) Premarket Notification database or the FDA Premarket Approval (PMA) database.
*Source: https://www.fda.gov
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