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The regulatory agency responsible for FDA registration of medical devices in the United States is the Food and Drug Administration (FDA). The FDA is a federal agency under the U.S. Department of Health and Human Services (HHS) and is tasked with ensuring the safety, effectiveness, and quality of medical devices before they are marketed and sold in the U.S.

The FDA's Center for Devices and Radiological Health (CDRH) specifically oversees the regulation of medical devices. CDRH is responsible for reviewing device submissions, assessing their compliance with FDA regulations and standards, and making regulatory decisions regarding clearance, approval, or denial of device applications.

Key responsibilities of the FDA in the regulation of medical devices include:

1. Establishment Registration: Manufacturers must register their facilities with the FDA and list their devices before commercial distribution in the U.S.

2. Premarket Review: FDA reviewers evaluate submissions such as 510(k) premarket notifications, PMA applications, and De Novo classification requests to determine if devices meet regulatory requirements for safety and effectiveness.

3. Quality System Regulation (QSR): FDA sets and enforces quality system requirements (21 CFR Part 820) to ensure that manufacturers follow good manufacturing practices (GMP) for medical devices.

4. Post-Market Surveillance: FDA monitors the performance of medical devices on the market through adverse event reporting, inspections, and compliance activities to address safety concerns and ensure ongoing product quality.

5. Guidance and Standards: FDA provides guidance documents, standards, and regulatory frameworks to assist manufacturers in navigating the regulatory process and meeting FDA requirements.

Overall, the FDA plays a critical role in safeguarding public health by regulating medical devices and ensuring that they meet rigorous standards for safety, effectiveness, and quality throughout their lifecycle. Compliance with FDA regulations is essential for manufacturers seeking to market their medical devices in the United States.

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