1.承诺时限：自受理之日起，90日内作出行政许可决定。

2.实施机关：

实施机关：国家食品药品监督管理局

受理地点：国家食品药品监督管理局行政受理服务中心

3.事项变更：

医疗器械产品注册证书所列内容发生变化的，持证单位应当自发生变化之日起30日内，申请办理变更手续或者重新注册。

4.许可证件有效期与延续：

医疗器械产品注册证书有效期四年。持证单位应当在产品注册证书有效期届满前6个月内，申请重新注册。

1. What is a medical device? Beijing wants to understand the enterprises to see here Medical device: refers to instruments, equipment, appliances, materials or other articles used individually or in combination, including required software; their function on the surface of the body is not obtained by pharmacological, immunology or metabolic means, but may participate and play a certain auxiliary role. 2. How many categories are medical devices divided into? There are three categories: The operation of the first type of medical devices does