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Two terms, side by side

Pick any two terms to see definitions, context, pitfalls, and sources in parallel.

Regulatory

CE Mark

In one line

Mandatory European conformity mark for medical devices placed on the EU market.

Definition

The CE marking on a medical device indicates that the manufacturer declares conformity with applicable EU requirements, including MDR or IVDR, allowing the device to be placed on the market in the European Economic Area.

Why it matters

For most devices above Class I, CE marking requires Notified Body involvement and ongoing surveillance. Brexit added the UKCA mark for Great Britain.

Sources

CE Marking · European Commission
FDA - Medical Devices · FDA
European Commission - Medical Devices · European Commission

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Regulatory

MHRA / UKCA Marking(MHRA / UKCA)

In one line

UK regulator and post-Brexit conformity marking for medical devices in Great Britain.

Definition

The Medicines and Healthcare products Regulatory Agency (MHRA) regulates devices in Great Britain under the UK MDR 2002 (as amended). UKCA marking will replace CE marking for the GB market on a transition timeline currently extended through 2030 for many device classes.

Why it matters

Northern Ireland continues to follow EU rules under the Windsor Framework, requiring CE/UKNI marks. UK Approved Bodies - separate from EU Notified Bodies - perform conformity assessments for UKCA.

Sources

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Why compare MedTech terms side by side?

MedTech terminology is full of pairs that look interchangeable but carry very different regulatory, clinical, and commercial consequences. Picking the wrong framework, pathway, or standard early in a project can add months to a submission, invalidate clinical evidence, or trigger an audit finding. Side-by-side comparison is the fastest way to surface those differences before they become costly mistakes.

Each comparison on this page pulls from the same vendor-neutral, sourced definitions used throughout the MedTech Terms glossary. You see the one-line summary, the formal definition, why it matters in practice, common pitfalls, and the primary sources (FDA guidance, EU MDR/IVDR articles, ISO/IEC standards, MDCG documents, IMDRF principles) that back each entry. That makes the comparison defensible in regulatory strategy memos, design reviews, and submission narratives.

Common comparison patterns

Regulatory pathway choice - 510(k) vs PMA, 510(k) vs De Novo, Abbreviated vs Special 510(k).
Quality systems - QSR vs ISO 13485, QMSR vs QSR.
Software classification - SaMD vs SiMD, Locked vs adaptive AI.
EU frameworks - MDR vs IVDR, CE Mark vs UKCA.
Cybersecurity artifacts - SPDX vs CycloneDX SBOM, CVE vs CVSS.
Post-market actions - Recall vs field action, Removal vs correction.

How to use this tool

Pick term A and term B from the dropdowns, or click a preset above. The URL updates with both slugs so you can bookmark or share the exact comparison with a colleague, a notified body reviewer, or your regulatory consultant. Click Open full page on either side for the complete entry, including FAQs, related terms, and the full citation list. If you are not sure which term to start with, browse the Categories view or the A-Z index.

MedTech Terms is a vendor-neutral community resource sponsored by Blue Goat Cyber. Definitions are written for educational use and are not legal or regulatory advice.