ISO 14971:2019
Risk Management for the Translation of Medical Device Instructions for Use
ISO 14971:2019 and the Translation of Instructions for Use
ISO 14971:2019 – "Medical devices – Application of risk management to medical devices" – is the central standard for risk management in the medical device industry. It is recognised as a harmonised standard by EU MDR 2017/745, IVDR 2017/746, and virtually all regulatory frameworks worldwide. What many manufacturers overlook: the standard applies not only to the physical product but explicitly also to the accompanying documentation – and therefore to the Instructions for Use in every single language version.
Instructions for Use as a Risk Control Measure
A frequently overlooked aspect is the dual role of the Instructions for Use in risk management. On one hand, they are themselves a potential source of hazards – for instance, when translation errors lead to incorrect use. On the other hand, they are one of the most important risk control measures: when a design risk cannot be fully eliminated, manufacturers frequently rely on warnings and procedural instructions in the IFU to reduce the residual risk to an acceptable level.
This dual role makes translation quality particularly critical. When Instructions for Use serve as a risk control measure, the translation must meet the same high quality standards as the original version. An incorrect translation of a warning can undermine the manufacturer's entire risk control strategy.
Risk Analysis for the Translation Process
ISO 14971 requires in Section 5 a systematic risk analysis that identifies all foreseeable hazards. Annex C of the standard lists typical hazards and hazardous situations, including in C.2.12 explicitly "inadequate instructions for use". For the translation process, the following specific hazards can be identified:
- **Terminological errors**: Incorrect technical terms that can lead to confusion regarding active substances, body parts, or procedures. - **Contextual errors**: Correctly translated individual words that take on a different meaning in the sentence context. - **Omissions**: Untranslated sections, particularly in warnings or contraindications. - **Formatting errors**: Numbers, units of measurement, or decimal separators that are incorrectly presented in the target language (e.g. period instead of comma as decimal separator).
Severity Assessment and Probability
For each identified hazard, the manufacturer must assess both the severity of the potential harm and the probability of its occurrence. Severity levels typically range from "negligible" to "critical/fatal". Probability encompasses both the probability that a translation error occurs and the probability that this error actually leads to harm.
A translation error in a contraindication for a high-risk device (Class III) will naturally have a higher severity rating than a terminological error in a general product description. This differentiated assessment enables the manufacturer to allocate resources for translation quality assurance in a risk-oriented manner.
Risk Control in the Translation Process
The hierarchy of risk control measures defined in ISO 14971 – inherently safe design, protective measures, information for safety – can be applied to the translation process:
1. **Inherently safe process**: Employment of qualified specialist translators with demonstrated medical device expertise and native-speaker competence in the target language. 2. **Protective measures**: Systematic review procedures, validated terminology databases, automated quality checks (e.g. number verification, completeness checks). 3. **Information for safety**: Documented approval processes with clear assignment of responsibility and traceability.
ManualWorks integrates all three levels: qualified translators work in an environment with automated quality checks, validated terminology databases, and complete audit trails that can be used directly for the risk management file.
Conclusion
ISO 14971:2019 makes unambiguously clear that the translation of Instructions for Use is not an isolated linguistic process but a safety-relevant component of risk management. Manufacturers must systematically identify, assess, and control translation risks – with documented measures and demonstrable effectiveness. Professional translation management is therefore not merely a question of quality but a regulatory requirement directly linked to patient safety.
Frequently Asked Questions
Must translation errors be considered in the risk analysis under ISO 14971?+
Yes. ISO 14971:2019 requires in Section 5.4 the identification of all foreseeable hazards associated with the medical device. Annex C.2.12 of the standard explicitly lists "inadequate instructions for use" as a possible hazardous situation. Mistranslations – such as incorrect dosage information, incompletely transferred warnings, or terminologically incorrect procedural instructions – clearly fall into this category. The manufacturer must identify these risks, assess the severity, and implement appropriate control measures. In practice, Notified Bodies increasingly recommend that translation risks be explicitly addressed in the risk analysis.
What risk control measures does ISO 14971 recommend for the translation process?+
ISO 14971 does not prescribe specific measures for the translation process but requires that the chosen measures reduce the risk to an acceptable level. In practice, a multi-layered approach has proven effective: first, the use of qualified specialist translators with demonstrated medical device expertise; second, a systematic review procedure by independent reviewers (four-eyes principle); third, the use of validated terminology databases to ensure terminological consistency; and fourth, a documented approval by the manufacturer. ManualWorks supports all of these measures through integrated quality assurance features, complete audit trails, and automated terminology checks that can be directly referenced in the risk management file.