VIVI CAP1 is a replacement cap for insulin pens. It is intended to keep insulin cool within safe temperatures below 29°C (84.2°F) for minimum of 12 hours even in a constant environmental temperature of 37.8°C (100°F), when it is placed inside a purse, backpack or other bag or carrier.
The cap temperature regulation is passive and combines thermal insulation with heat absorbent material. The cap is ‘reactivated’/’filled up’ to provide safe storage conditions, whenever the ambient temperature gets below 26°C (78.8°F). It can be used like that, every day for years without any need for maintenance.  The Cap includes built in temperature sensor which can be activated by a push button. The push button activation light turns Green or Red to provide information about the temperature inside the cap.
The heat absorbent material within VIVI CAP1 is ‘reactivated’/’filled up’ to its heat absorbing state, whenever the ambient temperature gets below 26°C (78.8°F), which is common indoors and even outdoors after sun down. Therefore, usually VIVI CAP1 is reactivated while it’s on the pen without any need to place it in the refrigerator. In rare events, if there is need to accelerate reactivation, VIVI CAP1 can be placed in a refrigerator without the insulin pen.
Yes, VIVI CAP1 works even when it is placed inside a closed bag. It does not need  air flow to operate, and it is small enough to fit in a personal supply kit.
VIVI CAP1 is FDA and CE registered as class I device.
The device has One Year limited end user warranty.  If used properly, the electronics which run the built-in temperature sensor and visual temperature status indicator , can run for several years. The device should not be used once the electronics no longer work.