Which groundbreaking medical device, first commercially introduced in 1978, revolutionized diabetes care by allowing patients to self-administer insulin without multiple daily injections?

The management of diabetes has evolved dramatically over the decades, with significant innovations in insulin delivery transforming patient care. One breakthrough product changed the landscape of diabetes management forever, providing patients with unprecedented freedom and control. This trivia question explores the history of product development in diabetes care - can you identify which revolutionary device first made portable insulin delivery possible?

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The MiniMed insulin pump by Medtronic
The OneTouch blood glucose monitor by LifeScan
The NovoPen insulin pen by Novo Nordisk
The Dexcom continuous glucose monitoring system