The timeline for the registration of Class I medical devices in the United States can vary depending on the specifics of the device and whether it requires additional steps, such as premarket notification (510(k)) or if it is exempt from such requirements. Here's a general overview:

1. FDA Establishment Registration: Manufacturers of Class I devices are required to register their establishment with the FDA. This process is relatively straightforward and can be completed online through the FDA's Unified Registration and Listing System (FURLS). The registration itself doesn't have a specific approval process, but it needs to be updated annually.

2. Device Listing: After registration, the device must be listed with the FDA. This is usually done concurrently with establishment registration. Listing is also relatively quick, typically taking a few days to process.

3. 510(k) Exemption: Most Class I devices are exempt from the premarket notification (510(k)) process, meaning they don't require FDA approval before being marketed. However, manufacturers must still ensure that their devices meet applicable FDA regulations, such as those for labeling and good manufacturing practices (GMP).

4. If 510(k) is Required: In cases where a Class I device is not exempt from 510(k) requirements, the process can take around 3-6 months, depending on the complexity of the device and the review process.

General Timeline:

• Establishment Registration & Device Listing: 1-2 weeks (usually processed within a few days once submitted)
• 510(k) Submission (if applicable): 3-6 months (for non-exempt Class I devices)

Overall, for most Class I devices that are exempt from 510(k), the registration and listing process can be completed relatively quickly, within a few weeks. If 510(k) clearance is required, it could take several months.

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