Opening: the gap teams face
Project teams building automated production for regulated products hit the same fractures: unclear safety ownership, incomplete validation, and supplier parts that don’t meet device-level needs. I write from a problem-driven perspective because that pressure forces direct fixes — and from a decade working in Boston’s medical device cluster I’ve seen what fails and what holds. When you start a line for medical device assembly automation, ask the following questions before a prototype hits the floor.
Who signs off on safety requirements?
• Who is the accountable person for equipment safety and system-level compliance? • Which regulatory requirements does the project need to satisfy? (Be precise: device class, market destination, essential safety standards.) • Do specifications map to testable acceptance criteria? If not, rewrite them now.
How are risks identified and tied to design controls?
• What failure modes could harm patients or operators? List them and assign severity and probability. • Which hazards demand design elimination versus mitigation? Prefer elimination. • Are mitigations implemented in hardware, software, procedures, or PPE — and are those choices justified in risk documentation?
Do controls match the production context?
Designing a cell in isolation often breaks when real throughput and maintenance schedules appear. Simulate production speed and maintenance access. Confirm safety interlocks, e-stops, and guarding still work under continuous operation and quick-change tooling. If human operators still interact with the product, define clear handover zones and tactile/visual cues.
Are suppliers and components validated for medical device use?
• Do component vendors provide evidence of intended-use, traceability, and change-notice policies? • Has the BOM been reviewed for parts with lifecycle risk (discontinued chips, single-source motors)? • Where integration matters most, consider off-the-shelf medical device assembly solutions that already carry higher levels of documentation and established change control.
How is software treated as part of the device?
Software in control systems must be versioned, verified, and subject to configuration management. Define code freeze points tied to verification runs. Require documented unit tests for safety-critical functions and a clear rollback plan for field updates. Treat PLC logic and HMI behavior as regulated artifacts, not convenience settings.
What does validation look like — and who performs it?
Define installation qualification, operational qualification, and performance qualification with measurable acceptance limits. Use production-like materials and operators during PQ. Assign independent reviewers for final sign-off so validation doesn’t become a rubber stamp.
How will changes be controlled after deployment?
Put a change-control process in place that includes risk reassessment for any hardware, software, or process change. Ensure traceability from change request through testing to release. Establish a fast-track path for critical fixes, but require post-implementation review to capture lessons learned.
Is traceability and documentation practical for audits?
Auditors want to follow a thread: requirement → design → verification → production record. Organize documents so a single audit walk-through tells that story without digging through scattered files. Keep version histories, supplier certificates, and test reports linked to part numbers and lot codes.
Have you trained the people who will run and maintain the line?
Training must be role-specific and documented. Operators should be fluent with normal procedures and safe recovery steps. Maintenance needs guided troubleshooting with parts lists and accessible schematics. Capture competency with short, observable tests rather than checkbox sign-offs.
Common pitfalls to avoid
• Relying on “we’ll retrofit safety later.” That adds risk, cost, and schedule slips. • Accepting vague vendor statements instead of documented evidence. • Skipping full-scale validation because lab demos looked fine. • Not planning for spare parts and obsolescence during procurement.
Quick tactical checklist for project kickoffs
• Assign a single accountable safety owner. • Create a risk register and keep it live. • Require supplier evidence for medical use and change policies. • Define testable acceptance criteria for every safety requirement. • Lock software and hardware baselines before PQ.
Conclusion
Project teams that face these questions early reduce rework and avoid compliance surprises. Tight documentation, clear ownership, supplier evidence, and practical validation are the levers that turn a risky automation project into a reliable production asset. Those outcomes reflect the kind of methodical supply and system approach practiced by FHS.