How does IEC 62366 contribute to rehabilitation technology?

• A. It governs software development lifecycle.
• B. It provides guidance on applying human factors engineering to the design and usability of medical devices to minimize user errors and improve patient safety.
• C. It defines electrical safety testing.
• D. It prescribes distribution of marketing materials.

Answer: (B)

Usability engineering for medical devices is what IEC 62366 focuses on. It provides a structured approach to applying human factors engineering to the design and usability of medical devices, with the goal of minimizing use-related errors and increasing patient safety. In practice, this means understanding who will use the device, in what contexts, and what tasks they will perform. Designers then translate that understanding into intuitive interfaces, clear labeling, appropriate prompts, and controls that match users’ capabilities and workflows. Usability requirements are defined early, and both formative and summative usability testing with real users help uncover potential use errors and areas where the design could lead to unsafe operation. Issues found are addressed through design changes, revised instructions for use, or enhanced training materials, all in a way that reduces cognitive load and the potential for mistakes.

This is particularly important for rehabilitation technology, where devices may be used by patients with motor or cognitive challenges, caregivers, or clinicians in diverse settings, including home environments. A device that is easy to learn and safe to operate reduces the risk of incorrect use, improves adherence, and supports better rehabilitation outcomes.

It’s not about software development lifecycles, electrical safety testing, or marketing material distribution, which are covered by other standards and guidelines.