There is a record of Class I medical devices, which is available on the website of Huanggang Food and Drug Administration. The record number is E Huanggang Machinery Equipment No.2163. The publication date is August 25, 216, and the filing may be prepared every one to two years.

In p>217, the first class of medical devices for eye patch will no longer be filed by the state, and can only be found in the local food and drug administration.