Instructions for Use (IFU) is a controlled document that explains how to operate, maintain, and dispose of a medical device or in vitro diagnostic safely and effectively. In regulatory and labeling workflows, it is treated as mandatory labeling content that must be translated, localized, and verified to meet each market's language, format, and readability expectations before the product can be placed on the market.
IFU appears in labeling translation projects for medical devices and IVDs, often alongside labels, packaging, and quick-start guides. Translators receive source files from regulatory or technical publications teams and work with in-country reviewers to adapt terminology, units, symbols, and warnings before the document is approved for commercial release in each target country.
A frequent mistake is translating IFU text as generic technical prose without preserving warning hierarchy or using unapproved terminology from the product's glossary. This can create usability errors or regulatory findings because a warning that is softened, reordered, or mistranslated may no longer communicate the residual risk accurately to the intended user.
FDA, CE/MDR and NMPA reviewers assess the submitted wording itself. Regulatory bodies require traceable, accountable translation, and an inconsistent term can delay or fail a submission.
Angel Translation locks terms like this into a project terminology base before expert review begins, so the same source term resolves to the same target term across every document in a submission — and stays consistent in the next revision. See the 8-step AI + expert workflow.
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