MDR/IVDR Fundamentals
Why Does This Matter to You?
Real patient safety failures drove the EU to replace the old system
PIP Breast Implant Scandal
A French manufacturer used industrial-grade silicone instead of medical-grade in implants fitted to 400,000+ women across Europe. The old Directive system had no mechanism to detect this fraud before patients were harmed.
Metal-on-Metal Hip Implants
Certain hip implants released metallic debris into patients' bloodstreams, causing tissue damage and requiring revision surgery in thousands of patients. The old system's post-market surveillance was too weak to catch the trend early.
What MDR/IVDR Was Designed to Fix
🛡️
Stronger Pre-Market Checks
Clinical evidence required before CE marking
🔍
Proactive Surveillance
Monitor every device throughout its lifetime
📊
Full Traceability
UDI system tracks device from factory to patient
🌐
EUDAMED Database
Transparent public access to device safety data
MDR
(EU) 2017/745 · Applied May 2021
The Medical Devices Regulation governs everything from bandages to pacemakers — any instrument, software, or implant intended for a medical purpose.
Covers devices you use every day:
4
Risk Classes
I · IIa · IIb · III
22
Classification Rules
Annex VIII
IVDR
(EU) 2017/746 · Applied May 2022
The In Vitro Diagnostic Regulation governs devices that test specimens from the human body — blood, urine, tissue — outside the body.
Covers tests your lab runs daily:
4
Risk Classes
A · B · C · D
7
Classification Rules
Annex VIII
The Regulatory Journey — Where Are We Now?
Click any milestone to expand details. Current transition deadlines are highlighted.
What Changed for Your Hospital?
Side-by-side: the old system vs what MDR/IVDR now requires
📋 Clinical Evidence
❌ Old System
Literature review was often sufficient. Equivalence claims were loosely defined.
✅ Under MDR/IVDR
Active clinical follow-up now required. Equivalence requires contractual access to the comparator device's technical documentation.
🔍 Post-Market Surveillance
❌ Old System
Reactive — manufacturers only reported when something went wrong.
✅ Under MDR/IVDR
Proactive and systematic. Manufacturers must have a PMS plan, submit Periodic Safety Update Reports (PSURs), and actively look for safety signals.
📊 Traceability
❌ Old System
No standardised tracking. If a batch was faulty, identifying affected patients could take weeks.
✅ Under MDR/IVDR
Every device has a Unique Device Identifier (UDI). Hospitals must record UDIs — especially for Class III implantables — enabling targeted recalls within hours.
🏷️ Scope
❌ Old System
Traditional medical and IVD devices only. Many software products and aesthetic devices were unregulated.
✅ Under MDR/IVDR
Now includes standalone medical software (SaMD), certain aesthetic devices (e.g. dermal fillers, coloured contact lenses), and genetic/companion diagnostic tests.
🏛️ Oversight of IVDs
❌ Old System
Under IVDD, ~80% of IVDs were self-certified by the manufacturer with no Notified Body involvement.
✅ Under MDR/IVDR
Under IVDR, ~80% of IVDs now require Notified Body assessment. Independent third-party scrutiny is the norm, not the exception.
How a Device Gets to Your Ward
The MDR supply chain — every step has a responsible party and regulatory obligation
Manufacturer
Designs, manufactures, and places the device on the market
Responsible for CE marking, clinical evaluation, technical documentation, QMS, post-market surveillance, and vigilance reporting.
Notified Body
Independent assessment of higher-risk devices
Audits the manufacturer's quality system, reviews technical documentation, and issues the CE certificate for Class IIa, IIb, and III devices.
CE Marking
The device is approved for the EU market
The CE mark means the device conforms to MDR requirements. It must be visible, legible, and indelible on the device or its packaging.
Distributor / Importer
Makes the device available on the market
Must verify CE marking, check EUDAMED for safety alerts, ensure proper storage conditions, and forward complaints to the manufacturer.
Your Hospital
Procures, stores, and uses the device
Under Article 14: verify CE marking on receipt, maintain storage per IFU, record UDIs for implantables, report incidents to HPRA, cooperate with recalls.
You — The Healthcare Worker
Uses the device on patients
Check device before use, follow IFU, report incidents through NIMS, preserve devices after incidents, act on Field Safety Notices.
Device Risk Classification — Visual Guide
The higher the class, the greater the risk and the stricter the regulatory scrutiny
MDR — Medical Devices
Class III
Highest Risk
Hip implants · Pacemakers · Stents
Class IIb
Medium-High Risk
Ventilators · X-ray machines · Infusion pumps
Class IIa
Medium Risk
Hearing aids · Ultrasound probes · Surgical clamps
Class I
Lowest Risk
Bandages · Tongue depressors · Wheelchairs
↑ More scrutiny · ↓ Less scrutiny
IVDR — In Vitro Diagnostics
Class D
Highest Risk
HIV/Hepatitis screening · Blood typing
Class C
Medium-High Risk
Companion diagnostics · Cancer markers · Genetic tests
Class B
Medium Risk
Pregnancy tests · Blood glucose strips · Self-tests
Class A
Lowest Risk
General lab reagents · Specimen containers · Wash buffers
↑ More scrutiny · ↓ Less scrutiny
Essential Definitions
The terms you will encounter throughout this training programme
Medical Device (MDR Article 2)
Any instrument, apparatus, appliance, software, implant, reagent, material or other article intended by the manufacturer for a medical purpose — where the principal action is not achieved by pharmacological, immunological, or metabolic means.
In Vitro Diagnostic (IVDR Article 2)
Any device intended to be used in vitro (outside the body) for examining specimens derived from the human body — providing information about physiological/pathological states, predispositions, safety with potential recipients, or therapeutic response.
🎯 Key Takeaways from This Module
MDR and IVDR are EU Regulations — they apply directly in Ireland and replaced the older, weaker Directives that failed to prevent scandals like PIP and metal-on-metal hip recalls.
MDR governs medical devices (Class I–III). IVDR governs in vitro diagnostics (Class A–D). Both use risk-based classification — higher risk means more independent scrutiny.
Every device on the EU market must bear a CE mark. For higher-risk devices, a Notified Body must independently verify compliance before that mark is applied.
The UDI system gives every device a unique barcode. For Class III implantables, your hospital must record this — it is what enables targeted patient recalls within hours instead of weeks.
Post-market surveillance is no longer reactive. Manufacturers must proactively monitor every device throughout its lifetime and submit periodic safety update reports.
As a healthcare worker, you are part of this safety system. Recognising incidents, reporting through NIMS, and acting on Field Safety Notices are legal obligations — not optional best practices.
We are still in the transition period. Existing devices are being recertified under MDR/IVDR through 2028–2029. Check with clinical engineering if you are unsure about a device's regulatory status.
Irish Context — HPRA & HSE
In Ireland, the HPRA (Health Products Regulatory Authority) is the competent authority responsible for medical devices under both MDR and IVDR.
HSE facilities must comply with MDR/IVDR as end-users — this includes obligations around incident reporting, device traceability, and cooperating with manufacturers during recalls.
The HPRA publishes Medical Device Safety Notices and Field Safety Notices relevant to devices in use across Irish hospitals.
Useful HPRA Links:
This is educational content only and is not an accredited or externally verified course. Always refer to official HPRA publications and your facility's own policies.
Knowledge Check
5 questions · 80% required to pass
Q1.What is the primary EU regulation governing medical devices (excluding IVDs)?
Q2.Which of the following is a key reason the EU introduced MDR/IVDR?
Q3.What does UDI stand for in the context of MDR?
Q4.Under MDR, what is the definition of a "medical device"?
Q5.When did the MDR (EU 2017/745) become fully applicable?
0/5 answered
Print-Friendly Summary
One-page PDF for ward reference & quick revision
Was this module useful?