Which medical product design innovation was specifically created to address battlefield injuries but became a billion-dollar commercial success in civilian healthcare?

Medical product design has evolved dramatically over the decades, transforming patient care through innovative solutions to complex healthcare challenges. From surgical instruments to diagnostic equipment, thoughtful design has saved countless lives while also considering factors like usability, safety, and accessibility. This trivia question explores a groundbreaking medical product design that changed emergency care forever and generated significant commercial success.

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QuikClot hemostatic gauze
The CAT (Combat Application Tourniquet)
Tactical chest seals
Portable ultrasound devices