# 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:** 26

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**Author:** ![Nickyghaleb](https://avatars.discourse-cdn.com/v4/letter/n/5f8ce5/32.png) [@Nickyghaleb](https://forum.fudiabetes.org/u/Nickyghaleb)\
**Post date:** [February 14, 2019, 2:48pm UTC](https://forum.fudiabetes.org/t/could-a-closed-loop-system-deal-with-my-use-case/6597/26 "2019-02-14T14:48:16Z")

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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/6577/52):
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> 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,

Interesting fact… as long as the 670G is delivering .025 units per hour, it’s not being counted as “Minimum Delivery” in Auto Mode and can continue on until the reservoir is all dried up… Just .025 units per hour, and it’s under the radar. I’ve seen so many people’s Carelink reports and graph screens where it’s a barren landscape where there should’ve been a little insulin… where people have gone 8, 9 hours, if not _longer_, with near nothing. It’s a loophole, and it’s crazy.

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