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Bottle cap to show expiration / Medical products

Bottle cap to show expiration
Bottle cap to show expiration

Bottle cap to show expiration.
A time device is installed to the bottle cap of the eye drops to show the time lapse. After de-capping, the device will change color as it gets in contact with the oxygen in the air. The eye drops can no longer be applied if the color changes from white to red since red color means expiration. In the same line, the bottle cap can be used to other medical, health and living products such transfusion liquid, vitamins, skin products.


sichuan normal university

sichuan normal university
chengdu, China

Yunke Qiao,
Sichuan Normal University

Yin Jing,
Sichuan Normal University

Jing Tang,
Sichuan Normal University