Design Controls
17 articles
Auto-Injector Critical-Task Matrix for Human Factors Validation: How to Identify, Document, and Test Every Safety-Critical Use Step
Practical guide to building the critical-task matrix for auto-injector and pen-injector human factors validation — task identification from URRA, needle shield removal, site selection, dose confirmation, hold time, misfire recovery, training decay, disposal, use-error root cause analysis, and FDA/IEC 62366 evidence expectations.
Agile vs Waterfall for Medical Device Software: IEC 62304, Design Controls, and Audit Evidence
How to choose between Agile and Waterfall for medical device software development under IEC 62304 — AAMI TIR45 guidance, design control mapping, hybrid models, and what auditors actually look for.
Design Output Documentation for Medical Devices: Drawings, Specifications, BOMs, and Acceptance Criteria
Complete guide to medical device design output documentation — what ISO 13485 Clause 7.3.4 and FDA 21 CFR 820.30(d) require for drawings, specifications, BOMs, acceptance criteria, and traceability to design inputs under QMSR.
Design Review Evidence for Medical Devices: Agenda, Minutes, Independence, and FDA/ISO Expectations
Complete guide to medical device design review documentation — how to plan agendas, record minutes, ensure reviewer independence per FDA 21 CFR 820.30(e) and ISO 13485 Clause 7.3.5, and create audit-ready design review records under QMSR.
Design Transfer to Manufacturing for Medical Devices: DMR Readiness, Process Validation, and Supplier Handoff
Complete guide to medical device design transfer — how to move from design to production under FDA 21 CFR 820.30(h), ISO 13485 Clause 7.3.8, and QMSR. Covers DMR readiness, process validation (IQ/OQ/PQ), supplier qualification, and audit-ready documentation.
Fault Tree Analysis (FTA) for Medical Device Risk Management: When to Use It Instead of FMEA
How to perform Fault Tree Analysis under ISO 14971 for medical devices — FTA vs FMEA comparison, AND/OR gate logic, quantitative probability calculations, real-world examples, and when top-down analysis outperforms bottom-up methods.
User Needs vs Design Inputs for Medical Devices: How to Translate VOC into Verifiable Requirements
Complete guide to translating Voice of the Customer (VOC) and user needs into verifiable design inputs for medical devices — 21 CFR 820.30, FDA QMSR, ISO 13485, traceability matrix examples, and best practices for building audit-ready documentation.
Engineering Change Order (ECO) for Medical Devices: Complete Process Guide
How to manage Engineering Change Orders (ECOs) in medical device manufacturing — ECR to ECO to ECN workflow, ISO 13485 Clause 7.3.9 requirements, FDA QMSR design change control, risk assessment, regulatory notification triggers, and best practices for cross-functional approval.
Traceability Matrix for Medical Devices: From User Needs to V&V — Complete Implementation Guide
How to build and maintain a requirements traceability matrix for medical devices — linking user needs, design inputs, outputs, risk controls, verification, and validation under FDA 21 CFR 820.30, ISO 13485:2016, IEC 62304, and EU MDR.
FMEA for Medical Devices: Design, Process & Use Risk Analysis Explained
A complete guide to Failure Mode and Effects Analysis (FMEA) for medical devices — DFMEA, PFMEA, UFMEA, how FMEA relates to ISO 14971, step-by-step instructions, RPN scoring, and common mistakes to avoid.
Human Factors Testing for Medical Devices: FDA Requirements, IEC 62366, and Validation Testing Guide (2026)
The complete guide to human factors testing for medical devices — FDA guidance, IEC 62366-1 usability engineering, formative and summative evaluations, sample size requirements, HF submission categories, and how to prepare documentation that passes regulatory review.
QMSR Gap Analysis for ISO 13485:2016 Certified Companies: The 50+ Item Checklist for FDA's New Quality System Rule
Clause-by-clause gap analysis checklist mapping ISO 13485:2016 to FDA's QMSR — covering terminology changes, complaint handling, labeling controls, UDI integration, record retention, and 50+ specific action items your QMS documents still need.
Medical Device Change Control: Complete Guide to Managing Design, Process, and Regulatory Changes (FDA & EU MDR)
Comprehensive guide to medical device change control — FDA design change requirements (21 CFR 820.30(i)), EU MDR significant changes (MDCG 2020-3), change classification, Notified Body notification, and change management best practices.
Medical Device Technical File: Complete Guide to EU MDR Technical Documentation (Annex II & III)
Comprehensive guide to medical device technical documentation — EU MDR Annex II & III requirements, FDA Design History File comparison, STED format, ISO 13485 medical device file, and step-by-step preparation instructions.
IEC 62366 Usability Engineering for Medical Devices: Complete Guide
The definitive guide to usability engineering for medical devices — IEC 62366-1:2015, FDA human factors guidance, usability engineering file, formative and summative evaluations, use-related risk analysis, and EU MDR usability requirements.
Design Controls for Medical Devices: FDA Requirements, Process, and Implementation Guide
The complete guide to medical device design controls — FDA 21 CFR 820.30, ISO 13485 clause 7.3, the design control process, DHF requirements, traceability, and practical implementation.
Design Verification vs. Design Validation for Medical Devices: What You Actually Need to Know
A comprehensive guide to design verification and design validation under FDA design controls and ISO 13485. Covers the V-model, verification methods, validation approaches, documentation, common 483 findings, and practical examples across device types.