The Bigfoot system, built upon Asante technology, has three components – the pump body, the Dexcom G5 CGM and a controller. The body is a single-use, disposable piece that contains a battery and a 3-mililiter cartridge of Humalog. The Dexcom G5 sends glucose readings to the controller, which is the brains of the operation. The controller runs an algorithm that predicts glucose excursions and turns insulin on and off in response. While the controller does the math, the user still enters carbs and can always override it.

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