MDR Basics
MDR Basics Readiness Assessment
EU MDR at a Glance: What It Is, Who It Affects, and How It Works
A clear introduction to EU Regulation 2017/745 — its scope, structure, and what it actually requires of manufacturers placing medical devices on the European market.
General Safety and Performance Requirements: What Annex I Actually Demands
Every device placed on the EU market must meet the General Safety and Performance Requirements of Annex I. This guide explains what those requirements mean in practice, how to work through them, and where manufacturers tend to fall short.
UDI and EUDAMED: What Manufacturers Need to Know and Do
The Unique Device Identification system and the EUDAMED database are two of MDR's most operationally intensive requirements. This guide explains what they are, what they require of manufacturers, and where the practical pain points are.
Is Your Product a Medical Device? Understanding MDR Scope and Definitions
MDR casts a wider net than many manufacturers expect. This overview explains what qualifies as a medical device, what doesn't, and where the common surprises are.
Declaration of Conformity and CE Marking: The Final Step and What It Commits You To
The Declaration of Conformity and CE mark are the visible outputs of your compliance process — but they are also legal commitments with ongoing obligations attached. This guide explains what they require, what they mean, and what happens after you affix the mark.
Economic Operators Under EU MDR: Manufacturer, Authorised Representative, Importer, and Distributor
MDR places specific legal obligations on every organisation in the medical device supply chain. This guide explains what each economic operator role means, what it requires, and where the obligations overlap or conflict.
The Role of the Notified Body: What They Do, How They Work, and What to Expect
For most medical devices above Class I, a Notified Body is the gateway to the EU market. This guide explains what Notified Bodies are, what they assess, and how to work with them effectively.
Post-Market Obligations Under EU MDR: What Manufacturers Are Expected to Keep Doing
Certification is not the end — it is the beginning of an ongoing obligation cycle. This resource explains what MDR requires manufacturers to do after their device is on the market, and where the ongoing burden is highest.
Choosing Your Conformity Assessment Route Under EU MDR
Your device class determines which conformity assessment route you must follow. This guide explains each route, what it requires from you, and where manufacturers commonly misjudge the workload.
Device Classification Under EU MDR: A Practical Guide to Annex VIII
Classification sets off a chain of decisions that shapes your entire compliance pathway. This guide walks through how the Annex VIII rules work in practice, where manufacturers get it wrong, and how to document your reasoning.
Navigating MDCG Guidance: Which Documents Matter and When
The Medical Device Coordination Group has published dozens of guidance documents that shape how MDR is interpreted in practice. This guide explains the landscape, highlights the most practically relevant documents, and explains how to use them in your compliance work.
EU MDR 2017/745 came into full application in May 2021, replacing the older MDD and AIMDD directives. Many teams felt that shift more than they expected — the regulation goes considerably further than what it replaced, and the transition has been anything but straightforward for legacy devices. This category covers what the regulation actually is, how it's put together, and the things you need to understand before going deep into any specific topic.
Devices are split into four risk classes: I, IIa, IIb, and III. Your class isn't decided by looking at the device in isolation — the rules in Annex VIII walk you through a series of questions: what does the device actually do, how long is it in contact with the body, how invasive is it, does it emit energy or release a substance into the body? The answers set your class. And your class sets off a chain of decisions — which conformity route you follow, whether you need a Notified Body involved, how much clinical data you have to build. Getting this right early saves a lot of rework later.
One thing that catches a lot of teams off guard is how wide MDR's scope actually is. It's not just implants and active devices. It covers reusable surgical instruments, devices with a measuring function, software that supports clinical decisions, and — in Article 1(6) — products with no medical purpose but similar risks, like contact lenses without optical correction or body-shaping implants. If you're not sure whether your product is in scope at all, start with the definitions, not the classification rules.
MDR also made post-market obligations significantly heavier than MDD required. Maintaining a post-market surveillance system, writing periodic safety update reports (PSURs) for Class IIa and above, running PMCF activities — these are now hard requirements baked into the regulation itself, not just guidance. The reason they're there connects directly to the General Safety and Performance Requirements in Annex I. Once you see that link, the whole regulation starts to feel more coherent — it's built as a product lifecycle framework, not a one-time approval process.
Finally, the regulation text alone won't fully prepare you for an audit or a Notified Body review. MDCG guidance documents, European Commission Q&As, national authority positions, harmonised standards — these show you how regulators and auditors actually read the rules. They don't carry the same legal weight as the regulation itself, but ignoring them is a common mistake. This category gives you enough grounding to know what to look for and where.
AI Participation & Regulatory Notice
The content on this page may be partially assisted by Artificial Intelligence (AI) to improve readability and ensure clarity.
While our team audits this content, please be aware:
- Accuracy: AI-assisted interpretations may contain nuances that differ from official MDCG guidance.
- Timeliness: Medical Device Regulations (MDR) are subject to updates. Always verify critical information against the official EUR-Lex database.
- Liability: MDR Academy provides these resources for educational purposes only. They do not constitute legal advice.