510(k) · Cleared
Recalled · Class I · 2026Tandem Mobi Insulin Pump with interoperable technology
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Tandem Diabetes Care, Inc. · QFG Alternate Controller Enabled Insulin Infusion Pump
Cleared on Jul 26, 2024 as substantially equivalent to K240309 (Tandem Diabetes Care, Inc., 2024) after a 98-day review. Its family tree reaches back 6 generations to 2019. 6 of the 8 devices in its family, counting itself, have a Class I recall. 1 later device descends from it. It has been recalled 4 times, including 2 Class I recalls.
- Decided
- Jul 26, 2024
- Review
- 98 days
- Class
- Class II
- Product code
- QFG
- Recalls
- 4 (2 Class I)
- Predicates
- 1
Its longest line of descent runs back 6 generations to DEN180058 (2019). 1 later device descends from it, 1 citing it directly. 6 of the 8 devices in this family, counting this one, have a Class I recall.
- Root · 6 generations backDEN180058 t:slim X2 insulin pump with interoperable technologyTandem Diabetes Care, Inc. · 2019
- 5 generations backK201214 t:slim X2 Insulin Pump with Interoperable TechnologyTandem Diabetes Care, Inc. · 2020 · Recalled (Class I)
- 4 generations backK203234 t:slim X2 Insulin Pump with Interoperable Technology (with t:connect…Tandem Diabetes Care, Inc. · 2022 · Recalled (Class I)
- 3 generations backK223213 Tandem Mobi Insulin Pump with Interoperable TechnologyTandem Diabetes Care, Inc. · 2023 · Recalled (Class I)
- 2 generations backK233044 Tandem Mobi insulin pump with interoperable technologyTandem Diabetes Care, Inc. · 2023 · Recalled (Class I)
- 1 generation backK240309 Tandem Mobi insulin pump with interoperable technologyTandem Diabetes Care, Inc. · 2024 · Recalled (Class I)
- This deviceK241078 Tandem Mobi Insulin Pump with interoperable technologyTandem Diabetes Care, Inc. · 2024
- Descendant · cites it directly · 0 of its ownK253074 Tandem Mobi insulin pump with interoperable technologyTandem Diabetes Care, Inc. · 2025 · Recalled
Class I recalls in this family
- K240309 Tandem Mobi insulin pump with interoperable…direct predicate · 2024
- K233044 Tandem Mobi insulin pump with interoperable…2 generations back · 2023
- K223213 Tandem Mobi Insulin Pump with Interoperable…3 generations back · 2023
- K203234 t:slim X2 Insulin Pump with Interoperable…4 generations back · 2022
Most influential descendants
Showing 1 of 1 · See all- K253074Tandem Mobi insulin pump with interoperable technologyTandem Diabetes Care, Inc. · 2025 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −6 | DEN180058 | t:slim X2 insulin pump with interoperable technology | Tandem Diabetes Care, Inc. | 2019 | — |
| −5 | K201214 | t:slim X2 Insulin Pump with Interoperable Technology | Tandem Diabetes Care, Inc. | 2020 | Class I |
| −4 | K203234 | t:slim X2 Insulin Pump with Interoperable Technology (with t:connect mobile app) | Tandem Diabetes Care, Inc. | 2022 | Class I |
| −3 | K223213 | Tandem Mobi Insulin Pump with Interoperable Technology | Tandem Diabetes Care, Inc. | 2023 | Class I |
| −2 | K233044 | Tandem Mobi insulin pump with interoperable technology | Tandem Diabetes Care, Inc. | 2023 | Class I |
| −1 | K240309 | Tandem Mobi insulin pump with interoperable technology | Tandem Diabetes Care, Inc. | 2024 | Class I |
| 0 (this device) | K241078 | Tandem Mobi Insulin Pump with interoperable technology | Tandem Diabetes Care, Inc. | 2024 | — |
| +1 | K253074 | Tandem Mobi insulin pump with interoperable technology | Tandem Diabetes Care, Inc. | 2025 | 1 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2025 | 1 | 0 |
Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
6 devices in this family have a Class I recall. A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.
Top candidate predicates for a new QFG device
- #1 K251032 MiniMed 780G insulin pumpscore 19.6 · 11 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (1)
Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K240309 | Tandem Mobi insulin pump with interoperable technologySummary page 4…ate Controller Enabled Infusion Pump Regulation Number 21 CFR 880.5730 Device Class Class II Predicate Device K240309, Tandem Mobi Insulin Pump with interoperable technology I. Device Under Review Th… | 2024 |
| † | DEN170088 | Dexcom G6 Continuous Glucose Monitoring System | 2018 |
| † | K200467 | Control-IQ Technology | 2020 |
What descends from it? (1)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K253074 | Tandem Mobi insulin pump with interoperable technology | 2025 | 0 |
Has anything in its family been recalled? (6 Class I)
Recalls of this device
| Date | Class | Recall | Root cause | Reason |
|---|---|---|---|---|
| Sep 23, 2026 | Not classified | Z-0316-2027 | Process change control | Tandem Diabetes Care, Inc. ( Tandem ) has identified that certain Tandem Mobi insulin pumps may generate false-positive occlusion alarms when no actual insulin flow obstruction is present. Investigation determined that increased friction… |
| Oct 6, 2025 | Class I | Z-0427-2026 | Software design | Insulin pump includes a vibration motor that gives tactile feedback for any alerts, alarms, or malfunctions. Pump may exhibit false vibration motor failure due to a software issue causing Malfunction 12: "Pump cannot operate, the mobile… |
| Aug 5, 2025 | Class II | Z-0232-2026 | Software change control | A software defect in versions 7.9.0.1 and 7.10.1 of the pump software for Tandem t:slim X2 and version 7.9.0.1 of the Tandem Mobi pump with Control-IQ+ technology that are paired with a G7 sensor may result in an unexpected automatic… |
| Feb 27, 2025 | Class I | Z-1520-2025 | Software Design Change | A software defect in Version 7.9 of the pump software for Tandem t:slim X2 and Tandem Mobi pumps, when used with Control IQ+ technology, will cause the pump to incorrectly interpolate glucose trends when the Estimated Glucose Value (EGV)… |
Relatives with a Class I recall
Class I is FDA’s most serious recall class. A recall in the family tree is context for this device, not evidence about it.
- K240309Tandem Mobi insulin pump with interoperable technologyTandem Diabetes Care, Inc. · 2024 · Direct predicate · ◆ on the line of descent in FIG. 11 Class I recall
- K233044Tandem Mobi insulin pump with interoperable technologyTandem Diabetes Care, Inc. · 2023 · 2 generations back · ◆ on the line of descent in FIG. 11 Class I recall
- K223213Tandem Mobi Insulin Pump with Interoperable TechnologyTandem Diabetes Care, Inc. · 2023 · 3 generations back · ◆ on the line of descent in FIG. 11 Class I recall
- K203234t:slim X2 Insulin Pump with Interoperable Technology (with t:connect mobile app)Tandem Diabetes Care, Inc. · 2022 · 4 generations back · ◆ on the line of descent in FIG. 11 Class I recall
- K201214t:slim X2 Insulin Pump with Interoperable TechnologyTandem Diabetes Care, Inc. · 2020 · 5 generations back · ◆ on the line of descent in FIG. 11 Class I recall
What does this lineage say?
- The line of descent spans 5 years and passes through 1 company; a new generation was cleared every 1.3 years on median.
- 5 of the 6 ancestors have a recall of any class; 5 have a Class I recall.
- Of its descendants, K253074 (Tandem Diabetes Care, Inc., 2025) has gone furthest, with 0 descendants of its own.
How does its category compare?
All QFG devicesQFG Alternate Controller Enabled Insulin Infusion Pump: FDA decisions, review times, recalls and adverse event reports over 20 years. 2024, this device’s year, is highlighted.
FDA decisions per year · QFG
5in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · QFG
44in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · QFG
8so far in 2026, the most since 2007
Class I (3 since 2007) Class II/III not classified
Adverse event reports per year · QFG
324,360in 2025
MAUDE reports naming product code QFG, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 0 | — | 0 | 0 |
| 2008 | 0 | — | 0 | 0 |
| 2009 | 0 | — | 0 | 0 |
| 2010 | 0 | — | 0 | 0 |
| 2011 | 0 | — | 0 | 0 |
| 2012 | 0 | — | 0 | 0 |
| 2013 | 0 | — | 0 | 0 |
| 2014 | 0 | — | 0 | 0 |
| 2015 | 0 | — | 0 | 0 |
| 2016 | 0 | — | 0 | 0 |
| 2017 | 0 | — | 0 | 0 |
| 2018 | 0 | — | 0 | 0 |
| 2019 | 2 | — | 0 | 0 |
| 2020 | 1 | — | 0 | 30,522 |
| 2021 | 0 | — | 0 | 74,701 |
| 2022 | 2 | — | 1 | 129,119 |
| 2023 | 9 | 150 | 1 (1) | 188,014 |
| 2024 | 5 | 89 | 0 | 273,180 |
| 2025 | 5 | 44 | 3 (1) | 324,360 |
| 2026 | 6 | 103 | 8 (1) | — |
What is it indicated for?
The Tandem Mobi insulin pump with interoperable technology (the pump) is intended for the subcutaneous delivery of insulin, at set and variable rates, for the management of diabetes mellitus in persons requiring insulin. The pump is able to reliably and securely communicate with compatible, digitally connected devices, including automated insulin dosing software, to receive, execute, and confirm commands from these devices.
The pump is intended for single patient, home use and requires a prescription.
The pump is indicated for use in individuals 2 years of age and greater.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K241078 · printed Nov 6, 2026
Cite this page
510(k) Report. “K241078: Tandem Mobi Insulin Pump with interoperable technology.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K241078
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Record history
- FDA decision record loaded May 2, 2026
- Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026