Understanding The Team NB Position Paper On Medical Device Lifetime: What Manufacturers Must Know

In the evolving European regulatory landscape, medical device lifetime has become a critical focus area particularly following the publication of the Team NB Position Paper (December 2023).

While the EU Medical Device Regulation (EU MDR 2017/745) does not explicitly define “lifetime,” it strongly emphasizes, through Annex I (General Safety and Performance Requirements), the need for manufacturers to establish, justify, and maintain device longevity as part of compliance.

The Team Notified Body guide provides clarity on regulatory expectations, making lifetime definition a key determinant for CE marking, safety assurance, and market continuity.

What is medical device lifetime under EU MDR?
Medical device lifetime is the period during which a device is expected to perform safely and effectively under normal use. Under EU MDR, manufacturers must define, justify, and document this lifetime using risk management, clinical data, and post-market evidence, as emphasized in the Team NB Position Paper.

What Is Medical Device Lifetime?

Medical device lifetime refers to:

The duration during which a device can safely and effectively perform its intended purpose under normal or reasonably foreseeable conditions.

Key Characteristics

• Maintains performance specifications 
• Ensures patient and user safety 
• Accounts for degradation, wear, and environmental exposure 

Key Factors Influencing Device Lifetime

• Mechanical Wear & Fatigue
  Repeated use leading to structural degradation 
• Material Degradation
  Aging, corrosion, or chemical breakdown 
• Battery & Power Source Limitations
  Critical for active and implantable devices 
• Software Lifecycle & Obsolescence
  Updates, cybersecurity risks, and compatibility 
• Reprocessing & Sterilization Cycles
  For reusable devices, validated number of uses 

Important:
Device lifetime is distinct from maintenance intervals or service schedules, which only address periodic upkeep.

Regulatory Context Under EU MDR

Medical device lifetime is embedded across multiple MDR requirements:

• Annex I – General Safety and Performance Requirements 
• Annex II – Technical Documentation 
• Article 61 – Clinical Evaluation 
• PMS & PMCF obligations 

Notified Bodies increasingly require robust justification and traceability for lifetime claims.

Key Takeaways from the Team NB Position Paper

1. Clear Definition & Scientific Justification

Manufacturers must:

• Define lifetime in measurable terms: 
  • Years 
  • Number of uses 
  • Operating hours 
• Support with: 
  • Design verification and validation data 
  • Risk management documentation 
  • Clinical and pre-clinical evidence 
  • PMS and PMCF data 

Claims like “unlimited lifetime” are not acceptable.

2. Integration into Design & Risk Management

Lifetime must be embedded within:

• Design inputs and outputs 
• Verification and validation activities 
• Risk management per International Organization for Standardization ISO 14971 

Key Requirements

• Identify failure modes over time 
• Assess severity and probability 
• Implement long-term risk control measures 

3. Consistency Across Technical Documentation

Lifetime claims must align across:

• Technical File / Design Dossier 
• Clinical Evaluation Report (CER) 
• Risk Management File 
• PMS and PMCF Plans 
• Instructions for Use (IFU) 

Any inconsistency can trigger Notified Body queries or non-conformities.

4. Labeling & Instructions for Use (IFU)

Manufacturers must clearly communicate:

• Device lifetime 
• Usage limitations 
• Conditions affecting durability 

This ensures safe and informed use by end users.

Technical Considerations by Device Type

Active Medical Devices

• Evaluating electronic component durability 
• Battery lifecycle modeling 
• Simulated real-world usage testing 

Medical Device Software (MDSW)

• Software version control and updates 
• Cybersecurity lifecycle management 
• AI/ML algorithm performance over time 
• Compatibility with evolving platforms 

Implantable Devices

• Long-term biocompatibility 
• Material fatigue and corrosion resistance 
• Power source longevity 
• Clinical benefit-risk over implantation duration 

Biological / Combination Devices

• Degradation or absorption rates 
• Interaction with biological systems 
• Functional integrity over time 

Impact on EU MDR Conformity Assessment

Notified Bodies are increasing scrutiny on:

• Lifetime justification and supporting data 
• Alignment with benefit-risk profile 
• PMS/PMCF integration 

Manufacturers must:

• Provide empirical or simulated evidence 
• Demonstrate lifecycle performance consistency 
• Maintain traceability of all decisions 

Failure may result in:

• Delays in CE marking 
• Additional data requests 
• Non-conformities or rejection 

Advanced Technical Expectations

Validation & Testing Approaches

• Accelerated aging studies 
• Fatigue and stress testing 
• Environmental simulation (temperature, humidity) 
• Software lifecycle validation 

Data Sources for Justification

• Bench testing data 
• Clinical trial results 
• Real-world evidence (RWE) 
• Complaint and vigilance data 

Common Challenges

Best Practices for Manufacturers

• Start Early
  Integrate lifetime into design and development 
• Adopt Risk-Based Approach
  Align with ISO 14971 and MDR requirements 
• Leverage Real-World Data
  Use PMS and PMCF insights 
• Ensure Documentation Consistency
  Align across all regulatory documents 
• Engage Notified Bodies Early
  Prevent surprises during conformity assessment 

Why Lifetime Matters

• Expertise: Requires engineering, clinical, and regulatory knowledge 
• Experience: Based on lifecycle data and real-world performance 
• Authoritativeness: Driven by MDR and Notified Body expectations 
• Trustworthiness: Ensures long-term patient safety 

A well-defined lifetime demonstrates product reliability, safety, and regulatory maturity.

Quick Facts

• Lifetime must be defined and justified under EU MDR 
• Based on design, risk, and clinical data 
• Applies across technical documentation and IFU 
• Critical for CE marking approval 
• Strong focus area for Notified Bodies 

How Maven Regulatory Solutions Supports EU MDR Compliance

Our Services

• Medical device lifetime assessment & justification 
• Risk management (ISO 14971 alignment) 
• Technical documentation (Annex II & III) 
• PMS & PMCF strategy development 
• Notified Body interaction support 

 Why Choose Maven

• Expertise in European Union MDR compliance 
• Strong experience with Notified Body expectations 
• End-to-end regulatory support 
• Audit-ready documentation 

Ensure Compliance with Device Lifetime Requirements

Struggling with EU MDR lifetime documentation?

Partner with Maven Regulatory Solutions for robust, compliant, and scientifically justified device lifecycle strategies.

1. Achieve smooth CE marking
2. Reduce regulatory risks
3. Ensure long-term market access

Conclusion

The Team Notified Body Position Paper has elevated medical device lifetime as a critical compliance requirement under EU MDR.

Manufacturers must adopt a proactive, data-driven, and lifecycle-based approach integrating design, risk management, clinical evaluation, and post-market data.

By doing so, organizations can ensure regulatory success, product safety, and sustained market presence in the European medical device landscape.

FAQs

1. What is medical device lifetime?
The period during which a device performs safely and effectively.

2. Is lifetime defined in EU MDR?
Not explicitly, but it is required under safety and performance requirements.

3. Why is lifetime important for CE marking?
It ensures safety, compliance, and regulatory approval.

4. How is lifetime determined?
Through risk assessment, testing, and clinical data.

5. What is the role of PMS and PMCF?
They provide real-world data to validate lifetime assumptions.

6. How can Maven help?
Maven supports lifetime assessment, documentation, and MDR compliance.