Summative HFE for Smart Infusion Pumps

A Tier-1 medical device manufacturer required summative human factors validation of their next-generation smart infusion pump, including drug library and bidirectional EHR integration, prior to 510(k) submission.

Smart pumps consolidate dozens of clinical workflows behind a single screen. Two critical-task patterns had been flagged during formative testing as failure-prone: emergency override during code blue, and bolus reprogramming mid-infusion. FDA HFE guidance required documented summative evidence of mitigation.

We executed an IEC 62366-1 aligned summative study with 25 ICU nurses (representative of intended user population) across three simulated environments: simulation lab, mock ICU bay, and a fully instrumented high-fidelity simulator. Each participant performed 12 critical tasks with use-error scoring against the manufacturer's URRA.

• 01Zero critical use-errors observed across 300 task instances.
• 02Two close-call patterns identified and resolved through label and flow changes.
• 03Time-to-bolus reduced by 31% vs predecessor device.
• 04Submission package accepted by FDA with no HFE deficiencies.