FDA对于美国代理人的解释也可以参考看一下网站的原文： Any foreign establishment engaged in the manufacture, preparation, propagation, compounding, or processing of a device imported into the United States must identify a United States agent (U.S. agent) for that establishment. Information about a foreign establishment’s U.S. Agent is submitted electronically using the FDA Unified Registration and Listing System (FURLS system) and is part of the establishment registration process. Each foreign establishment may designate only one U.S. agent. The foreign establishment may also, but is not required to, designate its U.S. agent as its official correspondent. The foreign establishment should provide the name, address, telephone and fax numbers, and e-mail address of the U.S. agent. The U.S. agent identified will be required to complete an automated process to confirm that they have agreed to act as the U.S. agent. The automated process will forward an email verification request to the U.S. agent. They will be re to confirm her/his consent to act as a representative/liaison on behalf of the foreign establishment. If the U.S. agent denies consent (or does not respond within 10 business days), the Official Correspondent/Owner Operator of the foreign establishment will be notified and must designate a new U.S. agent to satisfy the regulatory obligation.
QSR820的要求 QSR820的要求分为7个子体系，分别是：管理控制、纠正和预防措施（CAPA）（具有的器械报告系统、纠正和移除系统、器械记录系统）、设计控制、生产和过程控制（P&PC）（具有的灭菌过程控制系统）、设备设施控制、材料控制以及文件记录和变更控制。
Responsibilities of a U.S. agent The U.S. agent must either reside in the U.S. or maintain a place of business in the U.S. The U.S. agent cannot use a post office box as an address. The U.S. agent cannot use an answering service. They must be available to answer the phone or have an employee available to answer the phone during normal business hours. The responsibilities of the U.S. agent are limited and include: assisting FDA in communications with the foreign establishment, responding to concerning the foreign establishment's devices that are imported or offered for import into the United States, assisting FDA in scheduling inspections of the foreign establishment and if FDA is unable to contact the foreign establishment directly or expeditiously, FDA may provide information or documents to the U.S. agent, and such an action shall be considered to be e to providing the same information or documents to the foreign establishment. Please note that the U.S. agent has no responsibility related to reporting of adverse events under the Medical Device Reporting regulation (21 CFR Part 803), or submitting 510(k) Premarket Notifications (21 CFR Part 807, Subpart E).
QSR820审核的可能的结果 NAI（审核无483直接通过） VAI（审核有483，是一般不符合） OAI（审核有483，是严重不符合） Warning Letter 警告信（企业必须在规定期限回复，有可能需要再次审核进行验证） Import Alert 进口禁令（企业产品到美国海关会被自动扣留，进入DWPE程序）