Sensor, Glucose, Invasive
FDA adverse event reports and recall history for sensor, glucose, invasive (product code MDS), from the public MAUDE/AEMS corpus and the live FDA recall database.
- Total reports
- 281,755
- Deaths
- 321
- Injuries
- 13,630
- Malfunctions
- 267,317
Reports per year
Source: FDA adverse event reports by year received, 2012–2026. Reporting paused during the 2026 MAUDE-to-AEMS transition and has since resumed.
Recent recalls
- 2025-10-02Open, ClassifiedProcess design
Medtronic, Simplera Sensor, REF: MMT-5100JD1
The device cap label may not adhere to the sensor, compromising the sterility of the sensor, and increasing the risk of infection.
- 2023-01-01Open, ClassifiedSoftware change control
Guardian iOS app (MMT-8200) and Guardian Android app (MMT-8201), part of the Guardian 4 system
An app, part of a continuous glucose monitoring system, for use with smartphone devices may automatically log out from CareLink, then the app is not able to upload data. When logged out, linked care partners will not receive SMS notifications (could result in hypoglycemia or hyperglycemia), and sensor glucose values will also not be sent to the InPen app.
- 2016-04-11TerminatedDevice Design
Dexcom G4 PLATINUM Receiver Receiver Part Number: MT20649 Receiver (mg/dL), Black; MT20649-PNK, Receiver (mg/dL), Pink; MT20649-BLU, Receiver (mg/dL), Blue. Intended to detect trends and track glucose patterns in persons with diabetes.
Customers may not receive an intended audible alarm or alert if relying on hearing the alarm or alert.
- 2016-04-11TerminatedDevice Design
Dexcom G4 PLATINUM (Pediatric) Receiver Receiver Part Number: MT22430 Receiver (mg/dL), Black (pediatrics); MT22430-PNK, Receiver (mg/dL), Pink (pediatrics); MT22430-BLU, Receiver (mg/dL); Blue (pediatrics). Intended to detect trends and track glucose patterns in persons with diabetes.
Customers may not receive an intended audible alarm or alert if relying on hearing the alarm or alert.
- 2016-04-11TerminatedDevice Design
Dexcom G4 PLATINUM (Professional) Receiver Receiver Part Number: MT20649 Receiver (mg/dL), Black. Intended to detect trends and track glucose patterns in persons with diabetes. The G4 PLATINUM CGM System and G4 PLATINUM (Professional) CGM System use the same receiver, MT20649. The kits differ due to other kit contents, such as indications for use and professional receiver shield.
Customers may not receive an intended audible alarm or alert if relying on hearing the alarm or alert.
- 2016-04-11TerminatedDevice Design
Dexcom G4 PLATINUM Receiver with Share Receiver Part Number: MT22495 Receiver (mg/dL), Black; MT22495-PNK, Receiver (mg/dL), Pink; MT22495-BLU, Receiver (mg/dL), Blue. Intended to detect trends and track glucose patterns in persons with diabetes.
Customers may not receive an intended audible alarm or alert if relying on hearing the alarm or alert.
- 2016-04-11TerminatedDevice Design
Dexcom G4 PLATINUM (Pediatric) Receiver with Share Receiver Part Number: MT22608 Receiver (mg/dL), Black (pediatrics); MT22608-PNK, Receiver (mg/dL), Pink (pediatrics); MT22608-BLU, Receiver (mg/dL), Blue (pediatrics). Intended to detect trends and track glucose patterns in persons with diabetes.
Customers may not receive an intended audible alarm or alert if relying on hearing the alarm or alert.
- 2016-04-11TerminatedDevice Design
Dexcom G5 Mobile Receiver Receiver Part Number: MT22719 Receiver (mg/dL), Black; MT22719-PNK, Receiver (mg/dL), Pink; MT22719-BLU, Receiver (mg/dL), Blue. Intended to detect trends and track glucose patterns in persons with diabetes.
Customers may not receive an intended audible alarm or alert if relying on hearing the alarm or alert.
- 2015-08-21TerminatedSoftware design
Guardian Real-Time Monitor, Model No. CSS7100. Indicated for continuous or periodic monitoring of glucose levels in the fluid under the skin, in adults (18 years and older) with diabetes mellitus, for the purpose of improving diabetes management.
Medtronic MiniMed is recalling the Guardian Real-Time Continuous Glucose Monitoring System because it has a language translation error that impacts the Finnish language. Specifically, the Monitor has a Finnish translation error in Predictive Alerts setting: the on-screen Finnish translation for LOW/HIGH is reversed as HIGH/LOW.
- 2014-08-10TerminatedDevice Design
Medtronic MiniMed Guardian Monitor, Model No. CSS7100, CSS7100K Product Usage: The Medtronic MiniMed model CSS7100 and CSS7100K Guardian REAL-Time monitors are used in combination with the Minilink transmitter and Sof-sensor glucose sensor for continuous monitoring of subcutaneous glucose concentration. The information provided by these devices is intended for use in identifying potential episodes of high or low blood glucose. The information provided is not intended to be used directly for making therapy adjustment but rather to assist the user in determining that an additional fingerstick glucose measurement may be appropriate. Per the product labeling, all therapy adjustments should be based on fingerstick glucose measurements obtained using standard home glucose meters and not on the sensor glucose values provided by the Guardian REAL-Time monitor. The CSS7100 and CSS7100K monitors are identical expect for the fact that the CSS7100K monitor is a pediatric version that has a minimum programmable low alert setting of 90 mg/dL. The minimum programmable low glucose alert setting for the adult model (CSS7100) is 40 mg/dL.
Medtronic MiniMed is recalling the Guardian REAL-Time monitors because of a manufacturing issue that has the potential to compromise the water resistance of the affected Guardian monitors.
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