# Could a closed-loop system deal with my use case?

**URL:** <https://forum.fudiabetes.org/t/could-a-closed-loop-system-deal-with-my-use-case/6597>\
**Category:** Treatment\
**Created:** [February 13, 2019, 4:35pm UTC](https://forum.fudiabetes.org/t/could-a-closed-loop-system-deal-with-my-use-case/6597 "2019-02-13T16:35:04Z")\
**Posts on this page:** 1\
**Showing post:** 24

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**Author:** ![Jen](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/jen/32/4777_2.png) [@Jen](https://forum.fudiabetes.org/u/Jen)\
**Post date:** [February 14, 2019, 2:39pm UTC](https://forum.fudiabetes.org/t/could-a-closed-loop-system-deal-with-my-use-case/6597/24 "2019-02-14T14:39:35Z")

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> [@One of these things is not like the other - A discussion of CGM and Meter accuracy](https://forum.fudiabetes.org/t/one-of-these-things-is-not-like-the-other-a-discussion-of-cgm-and-meter-accuracy/6577/50):
>
> It would depend on the algorithm, but, in general, a closed loop algorithm would deliver little or no insulin when it predicts a low in the near future (or when you are low of course).

But I think most closed loop systems have a maximum time without insulin? Most people with Type 1 can’t go five or six hours with no insulin without risking DKA. Like I know the 670G will go no longer than two hours, and I think the t:slim may be similar. I’m not sure about the open-source options, but I think they’d have the same sort of safety system built in.

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