Which design innovation for insulin delivery devices significantly improved diabetes management by allowing more precise dosing and reduced the risk of dosing errors?

The medical device industry constantly evolves with technological advancements and changing patient needs. Product design in medicine balances functionality, safety, user experience, and regulatory compliance. This poll tests your knowledge about a significant innovation in medical device design that changed treatment approaches and improved patient outcomes. How well do you understand the principles and history behind life-saving medical products?

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Electronic memory features that track injection history
The introduction of pre-filled, disposable insulin pens with dial-a-dose functionality
Bluetooth connectivity to smartphone apps
Temperature-sensitive color-changing indicators