EU MDR Explained: What Medical Device Suppliers Must Know in 2026
The EU Medical Device Regulation (MDR, Regulation 2017/745) is the most significant regulatory change in European medical device history. Whether you’re a manufacturer, distributor, or procurement team responding to hospital tenders, understanding the EU MDR is no longer optional — it’s the baseline for market access in 27 EU member states plus the EEA.
What is the EU MDR?
The EU MDR replaced the Medical Device Directive (MDD 93/42/EEC) and the Active Implantable Medical Device Directive (AIMDD 90/385/EEC). It introduces a fundamentally different regulatory philosophy: instead of relying on manufacturers’ self-declaration backed by limited Notified Body oversight, the MDR demands comprehensive clinical evidence, lifecycle traceability, and proactive post-market surveillance.
Key changes from MDD to MDR:
- Stricter clinical evidence requirements — clinical evaluations must be based on sufficient clinical data, with clinical investigations required more frequently
- Unique Device Identification (UDI) — every device must carry a UDI for traceability from factory to patient
- EUDAMED — centralized European database for device registration, certificates, clinical investigations, and vigilance
- Expanded scope — certain aesthetic and non-medical devices now fall under MDR
- Stronger post-market surveillance — mandatory Post-Market Clinical Follow-up (PMCF) plans and Periodic Safety Update Reports (PSUR)
- Person Responsible for Regulatory Compliance (PRRC) — manufacturers must designate a qualified individual
EU MDR device classification
The MDR classifies medical devices into four risk classes using 22 rules in Annex VIII:
| Class | Risk level | Examples | Conformity assessment |
|---|---|---|---|
| Class I | Lowest | Bandages, wheelchairs, stethoscopes | Self-declaration (except Is, Im, Ir) |
| Class IIa | Medium | Hearing aids, surgical clamps, ultrasound probes | Notified Body required |
| Class IIb | Medium-high | Ventilators, infusion pumps, X-ray machines | Notified Body required |
| Class III | Highest | Cardiac implants, hip prostheses, drug-device combinations | Notified Body + clinical scrutiny |
Important: some devices that were Class I under MDD have been up-classified under MDR. Reusable surgical instruments (Class Ir), devices with a measuring function (Class Im), and sterile Class I devices (Class Is) now require Notified Body involvement for specific aspects of conformity assessment.
Conformity assessment under MDR
To place a medical device on the EU market, manufacturers must complete a conformity assessment procedure and affix the CE marking. The process varies by device class:
- Technical documentation — comprehensive file covering design, manufacturing, risk management, clinical evaluation, and labeling (Annexes II and III)
- Quality Management System — ISO 13485-aligned QMS covering the full lifecycle
- Clinical evaluation — systematic review of clinical data demonstrating safety and performance (Annex XIV)
- Notified Body audit — for Class IIa and above, a Notified Body reviews technical documentation and audits the QMS
- EU Declaration of Conformity — manufacturer’s formal statement that the device meets MDR requirements
- UDI assignment and EUDAMED registration
UDI: Unique Device Identification
The UDI system is one of MDR’s most impactful requirements. Every medical device must carry:
- UDI-DI (Device Identifier) — identifies the device model and manufacturer
- UDI-PI (Production Identifier) — identifies the specific production unit (lot, serial number, expiry, manufacturing date)
UDIs must appear on device labels, packaging, and in some cases on the device itself (direct marking for implants and reusable devices). The UDI-DI is the key for EUDAMED registration and enables end-to-end traceability.
EUDAMED: the European database
EUDAMED is being deployed in phases:
- Actor registration module — operational (manufacturers, authorized representatives, importers)
- UDI/device registration module — operational
- Notified Body and certificate module — operational
- Clinical investigation module — being rolled out
- Vigilance module — being rolled out
- Market surveillance module — in development
Until all modules are fully functional, transitional provisions apply. But the direction is clear: EUDAMED will be the single source of truth for medical device regulatory data in Europe.
EU MDR vs FDA: key differences
| Aspect | EU MDR | FDA (US) |
|---|---|---|
| Market authorization | CE marking via conformity assessment | 510(k), PMA, or De Novo |
| Predicate device | No predicate concept | Substantial equivalence to predicate |
| Notified Body / Third party | Required for Class IIa+ | Third party review for some Class II |
| Clinical evidence | Clinical evaluation mandatory for all classes | Clinical data required for PMA; often not for 510(k) |
| Post-market surveillance | PMCF + PSUR mandatory | Post-market requirements vary by pathway |
| Traceability | UDI mandatory for all devices | UDI mandatory for most devices |
| Database | EUDAMED | GUDID + MAUDE |
For companies operating in both markets, understanding these differences is critical. A device with FDA 510(k) clearance does not automatically qualify for EU market access — a separate MDR conformity assessment is required.
How EU MDR affects medical device tenders
If you’re responding to hospital tenders in the EU, MDR compliance is now table stakes. Here’s what procurement teams verify:
- EU Declaration of Conformity — must reference MDR 2017/745, not MDD. Old MDD declarations are a red flag.
- Notified Body certificate — must be from a currently designated MDR Notified Body with the correct Annex reference
- UDI — increasingly required in tender responses for product identification and traceability
- EUDAMED registration — proof of registration where applicable
- SSCP — Summary of Safety and Clinical Performance for Class III and implantable devices
- PMCF plan — evidence of ongoing clinical follow-up
Many EU hospitals now treat MDR compliance as a pass/fail gate rather than a scoring criterion. If your documentation still references MDD, your bid may be rejected outright.
MedStrato’s tender automation cross-checks regulatory status across EU MDR and 13 other regulatory regimes automatically, ensuring your bid never ships with outdated compliance documentation.
Timeline: where are we in 2026?
- May 2021 — MDR became fully applicable (after COVID delay from May 2020)
- May 2024 — Transition extension regulation adopted for legacy devices
- December 2027 — Deadline for Class III and IIb implantable legacy devices to transition
- December 2028 — Deadline for remaining Class IIa and IIb legacy devices
- 2026 (now) — All new devices must be MDR-certified. Notified Body capacity remains constrained. Early movers have an advantage in tender eligibility.
Getting MDR-ready for tenders
Three steps to ensure your tender responses meet EU MDR requirements:
- Audit your documentation — Replace any remaining MDD references with MDR equivalents. Update Declarations of Conformity, technical files, and labeling.
- Verify Notified Body status — Confirm your NB is designated under MDR (not just MDD). Check certificate validity dates and Annex coverage.
- Automate compliance checking — Use tools that cross-reference regulatory status automatically so outdated compliance data never reaches a tender submission.
Book a demo to see how MedStrato verifies EU MDR compliance in real time during tender response.