Patchability is the architectural and operational capacity to ship and apply security updates to a fielded medical device throughout its supported lifetime - including the update mechanism itself (signed packages, secure boot, rollback), the over-the-air or operator-driven delivery channel, and the regulatory pathway for the change. FDA's 2023 cybersecurity guidance treats patchability as a first-class security property, with a specific architecture view dedicated to updateability and patchability.

Why it matters

Devices designed without an update path become security debt the moment they ship. Mature MedTech teams design the update mechanism as part of the system architecture (cryptographic signing, A/B partitions, dual-bank firmware, secure boot, audit logging) and validate it in V&V - not as a post-launch project. Hospitals increasingly refuse to procure devices without a credible patching story.

Common pitfalls

•Designing the device first and bolting on an update mechanism later - the architecture won't support it.
•Shipping an update channel without cryptographic signing or rollback - a single compromised update can brick a fleet.
•Confusing 'patchable' with 'auto-updating' - clinical environments often need controlled, scheduled updates.

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.