Which product design innovation revolutionized insulin delivery for diabetic patients by allowing precise dosing without visual confirmation?

The design of medical devices has evolved dramatically over the decades to improve patient outcomes, enhance usability for healthcare professionals, and integrate advanced technologies. This poll tests your knowledge about a pivotal medical product design innovation that transformed patient care. Consider how design thinking in medicine balances functionality, safety, ergonomics, and accessibility while meeting stringent regulatory requirements.

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The insulin pen with audible click mechanism
The continuous glucose monitoring (CGM) system
The color-coded insulin vial system
The smartphone-connected smart insulin pump