The RPN review moment
Picture the founder and RA/QA lead before a design review. Engineering has a spreadsheet with FMEA scores, but the reviewer asks which hazard sequence, risk-control evidence, residual-risk question, and owner decision the score represents.
The useful move is not to argue over one number. The useful move is to convert the score into a source-backed risk-review packet that qualified reviewers can inspect.
Risk-prioritization workpaper
| Workpaper row | What to capture |
|---|---|
| Trigger | Design change, complaint trend, supplier issue, usability signal, PMS signal, verification result, or review question. |
| Source ledger | ISO 14971, FDA recognized-standard page, IEC 60812, QMSR, EU MDR, internal risk file, design-control records, and access dates. |
| FMEA row | Failure mode, cause, effect, detection assumption, score basis, and source limit. |
| ISO 14971 review question | Hazard, hazardous situation, harm, severity, probability, control evidence, residual-risk question, and owner. |
| Decision boundary | Open risk acceptability, benefit-risk, clinical, regulatory, legal, design, quality, and leadership decisions. |
What good looks like
A useful risk packet lets a reviewer trace from an engineering row to a risk-management question. It shows why the row matters, which evidence supports it, which evidence is missing, and which conclusion still belongs to qualified review.
The packet should preserve uncertainty. If a probability estimate, severity rationale, detection assumption, or risk-control record is weak, the weakness belongs in the review artifact.
Source ledger
What it can tell you
The official ISO page for the medical-device risk-management standard and its scope at a high level.
What it cannot decide
Whether one hazard, harm, probability, risk-control measure, or residual-risk decision is acceptable.
What it can tell you
FDA recognized-consensus-standard context for ISO 14971 and its general risk-management process scope.
What it cannot decide
Whether a declaration, risk file, or device-specific risk-management argument will satisfy FDA review.
What it can tell you
Official IEC context for FMEA and FMECA as analysis techniques.
What it cannot decide
Whether a medical-device FMEA row can replace hazard, harm, risk-control, or residual-risk review.
What it can tell you
Current Part 820 QMSR context for quality-system records and finished-device controls.
What it cannot decide
How one risk-management file, FMEA table, or design-control record should be accepted.
What it can tell you
EU MDR source context for risk, benefit-risk, PMS, and manufacturer obligations.
What it cannot decide
Whether a device-specific risk-management file, clinical argument, or conformity position is acceptable.
Frequently asked questions
Can an FMEA RPN number decide medical-device risk acceptability?
No. This checklist treats FMEA scoring as one review input. Risk acceptability, residual-risk, benefit-risk, clinical, regulatory, legal, and design decisions remain with qualified reviewers.
What should be in the source ledger?
Include ISO 14971, FDA recognized-standard context, IEC 60812, QMSR, EU MDR, internal risk-file records, design-control records, complaint or PMS evidence, access dates, and source limits.
Need an ISO 14971 vs FMEA review packet?
Send the FMEA row, design trigger, or PMS signal. We can scope a source-backed risk-prioritization workpaper for qualified review.
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