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General product and regulatory information only, not medical advice.
Short answer
A rib belt is a soft, wrap-around chest or trunk support in the category the FDA calls “Orthosis, Rib Fracture, Soft” (product code IPX). It is a Class I device under 21 CFR 890.3490, the regulation for truncal orthoses.
Definition and scope: what is a rib belt?
In regulatory terms, a rib belt falls within the truncal orthosis group. 21 CFR 890.3490 describes a truncal orthosis as a device intended for medical purposes to support or immobilize fractures, strains or sprains of the neck or trunk, and its examples include rib fracture orthoses alongside abdominal, cervical and lumbar orthoses and clavicle splints. The soft rib fracture version is carried in the FDA classification database as product code IPX in the Physical Medicine panel.
This page covers the device category and how it is classified in primary sources. It does not cover how to wear a belt or how to treat any condition.
How a rib belt is regulated
Regulatory status
Under 21 CFR 890.3490(b), truncal orthoses are Class I (general controls). They are exempt from premarket notification (510(k)) under part 807 subpart E, subject to the limitations in 21 CFR 890.9, and exempt from the part 820 quality system requirements except records and complaint files (820.35). The openFDA classification record for IPX shows device class 1 and the GMP-exempt flag set to Y (openFDA data last updated 2026-10-19).
Types and related concepts: where IPX sits among truncal orthoses
The same regulation covers many trunk supports. These rows come from the openFDA device classification record for regulation number 890.3490 (checked 2026-10-31); every code listed is Class 1.
| Product code | FDA device name | Related CASRAI page |
|---|---|---|
| IPX | Orthosis, Rib Fracture, Soft | This page |
| IPT | Orthosis, Thoracic | – |
| KTD | Orthosis, Abdominal | Abdominal binder |
| IPW | Orthosis, Sacroiliac, Soft | Sacroiliac belt |
| IQE | Orthosis, Lumbar | Back brace types |
| IPY | Orthosis, Lumbo-Sacral | How a back brace works |
Other members of the same regulation include QSB (Orthosis, Truncal, Pregnancy), which the openFDA record shows is not GMP-exempt, unlike IPX. See also pregnancy support belts and compression dressings for neighbouring product categories.
Where it matters for labs, clinics and supply decisions
- Classification is not an efficacy statement. Class I with premarket exemption describes the FDA’s regulatory controls for the device type. It does not, by itself, say a belt improves pain or recovery.
- Records still apply. Even with the quality-system exemption, 21 CFR 890.3490 keeps records and complaint files (820.35) in force, so product identification and complaint handling remain relevant for anyone stocking or documenting these items.
- Product code lookup. IPX is the code to search in FDA databases such as openFDA when confirming how a soft rib belt is classified.
Common misunderstandings
“Class I means FDA tested it for effectiveness.”
Class I is the lowest-control class: general controls apply, and 21 CFR 890.3490 exempts these devices from 510(k) notification, subject to 890.9 limitations.
“A rib belt and an abdominal binder are the same product.”
The FDA lists them under different product codes, IPX and KTD, though both sit under the truncal orthosis regulation.
FAQ
What is a rib belt?
A soft truncal orthosis intended to support or immobilize rib fractures; FDA product code IPX, Class I, under 21 CFR 890.3490.
Is a rib belt regulated by the FDA?
Yes. It is a Class I device exempt from premarket notification, subject to the limitations in 21 CFR 890.9.
Sources
- 21 CFR 890.3490, Truncal orthosis, law.cornell.edu/cfr/text/21/890.3490 (checked 2026-10-31).
- openFDA device classification, regulation number 890.3490, api.fda.gov (data last updated 2026-10-19; checked 2026-10-31).
