Which design innovation in the 1980s revolutionized asthma inhalers and significantly improved patient medication adherence?

The design of medical devices has evolved significantly over the decades, with manufacturers focusing on both functionality and user experience. This poll tests your knowledge about a revolutionary design change in a common medical device that dramatically improved patient compliance and treatment outcomes. Understanding the history of medical product design helps us appreciate how thoughtful innovation can transform healthcare delivery and patient experiences.

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The addition of dose counters to track remaining medication
The integration of electronic microchips for usage tracking
The development of breath-activated mechanisms
The introduction of disposable one-time-use inhalers