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What is FMEA?

Failure Mode and Effects Analysis (FMEA) is a systematic method for identifying and preventing product and process failures. For medical devices, FMEA is required by ISO 14971 for risk management and is critical for FDA and EU MDR compliance.

RPN (Risk Priority Number) = Severity × Occurrence × Detection

Higher RPN values indicate higher priority risks requiring mitigation.

Read Complete GuideDownload Excel Template

FMEA Calculator

Failure Mode and Effects Analysis for ISO 14971 Risk Management

Add FMEA Record

1510
1510
1510

Risk Priority Number (RPN)

125

High Risk

S × O × D

5 × 5 × 5

Requires attention. Develop mitigation plan within 30 days.

Regulatory Guidance

ISO 14971:2019 - Medical Device Risk Management

Requires systematic risk analysis including hazard identification, risk estimation, risk evaluation, and risk control. FMEA is an accepted method for meeting these requirements.

FDA QMSR - Design and Development (ISO 13485 7.3)

FDA's Quality Management System Regulation aligns with ISO 13485:2016, requiring risk analysis as part of design validation per ISO 13485 7.3.6. FMEA documentation supports FDA 510(k) and PMA submissions.

EU MDR Annex I - General Safety Requirements

Requires manufacturers to eliminate or reduce risks through inherent safety by design. FMEA provides evidence of systematic risk assessment.

Best Practices:

  • Conduct FMEA early in design phase
  • Include cross-functional team (engineering, quality, regulatory, clinical)
  • Document all high-risk items (RPN over 100) with mitigation plans
  • Link FMEA to design controls and V&V activities
  • Update FMEA after design changes or post-market feedback
  • Maintain version control and approval signatures

Common Medical Device Failure Modes

Safety-Critical Failures

  • Laser safety interlock failure (Severity: 9-10)
  • Electrical shock hazard from insulation failure (Severity: 8-9)
  • Software error causing incorrect drug dosing (Severity: 9-10)

Performance Failures

  • Sensor calibration drift (Severity: 5-7)
  • Battery fails to hold charge (Severity: 4-6)
  • Display screen unreadable in bright light (Severity: 3-5)

User Interface Failures

  • Confusing button labels leading to misuse (Severity: 6-8)
  • Alarm not audible in noisy environment (Severity: 7-9)
  • Units displayed ambiguously (mg vs μg) (Severity: 8-10)

Manufacturing Failures

  • Contamination during assembly (Severity: 6-9)
  • Component installed backwards (Severity: 5-8)
  • Inadequate sterilization (Severity: 7-9)

Related Tools

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Calculate MTBF and device lifetime (Coming Soon)