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Brazil Update: Does RDC 751/2022 Simplify the Grouping of Devices?

Aeriel view of Rio de Janeiro

February 7, 2023

By Luiz Levy and Evangeline Loh

In our recent updates we discussed RDC 751/2022, classification, and the technical dossier. We alluded to the importance of grouping of devices, though didn’t elaborate. Grouping is pivotal to regulatory strategy as it determines how devices can be authorized in a regulatory submission. Class I and II devices are subject to Notificação (notification) and class III and IV are subject to Registro.

There is a definition of family in RDC 751/2022, Section III, Article 4, XX, which explains that a family has similar technical characteristics in five areas:

a) Indication, intended purpose

b) Operation and mechanism of action

c) Technology

d) Content or composition, when applicable

e) Precautions, restrictions, warnings and special cautions


While the definition of System and Set (kit) are updated in RDC 751/2022, Article 3 of the new resolution explains that ANVISA will grant the notification or registration of families, systems, and set/kits based on the grouping of products which follows specific regulation. In the FAQ to RDC 751/2022, ANVISA emphasizes  this (Section 4.1, question 6).

When grouping, it is important to assess device grouping according to the following regulations (Table) which depends on the categorization of the device.

Type of grouping



Orthopedic implants


RDC 556/2021

RDC 542/2021

RDC 594/2021


IN 101/2021




As delineated in the table, in case of medical devices classified as materials, the initial step is to determine if the device is listed on the specific regulation (Normative Instruction (IN) 101/2023). If not, manufacturers shall assess grouping based on the general grouping regulation (RDC 556/2021).

In addition, on the recent FAQ, ANVISA responded to a question about whether associated accessories require separate registration (question 3).

Accessories to medical equipment require a separate registration if one of the following conditions apply: the manufacturer is different; it is not an active accessory and is subject to authorization by ANVISA as a material, IVD, sanitizer, cosmetic, medical product et al; or it is a nonactive accessory with a higher risk classification than the medical equipment.  


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