Reported Reactions

Devices › Continuous glucose monitor retrospective data analysis software

Device brand name · Continuous glucose monitor retrospective data analysis software

Carelink Web Uploader: medical device reports filed with FDA

689 reports name it, 2022–2025. Manufacturer given most often on reports: Medtronic Minimed. Product code PHV.

689
device reports naming the brand
0% of all MAUDE reports · about 159 a year
1
reports, 12 months to August 2026
6 in the 12 months before
100%
classified as malfunction
99.6% across the product code
0%
classified as death, as reported
0 reports · not verified by FDA

689 medical device reports received by FDA name the brand "Carelink Web Uploader" (continuous glucose monitor retrospective data analysis software); the manufacturer given most often on reports is Medtronic Minimed; received from March 2022 to October 2025. Brand names are as the reporter or manufacturer wrote them, so one product can appear under several spellings.

1 reports arrived in the 12 months to August 2026, down 83% from 6 in the 12 months before. FDA releases MAUDE data monthly; reports can arrive months after an event, so the newest months grow in later releases. The event types recorded are malfunction (100%); across all continuous glucose monitor retrospective data analysis software reports (product code PHV) death is recorded in 0% and malfunction in 99.6%. Event type is the reporter's classification of the report, not a verified outcome.

The device problems coded most often are computer software problem (93.6%), wireless communication problem (8.1%) and problem with software installation (1.3%). The patient problems coded most often are hyperglycemia, hypoglycemia and distress. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data."

Reports by month, five years

0175350Sep 2021: 0Oct 2021: 0Nov 2021: 0Dec 2021: 02022Jan 2022: 0Feb 2022: 0Mar 2022: 350Apr 2022: 6May 2022: 4Jun 2022: 4Jul 2022: 8Aug 2022: 2Sep 2022: 4Oct 2022: 2Nov 2022: 3Dec 2022: 102023Jan 2023: 82Feb 2023: 1Mar 2023: 7Apr 2023: 9May 2023: 7Jun 2023: 11Jul 2023: 16Aug 2023: 26Sep 2023: 17Oct 2023: 24Nov 2023: 17Dec 2023: 142024Jan 2024: 14Feb 2024: 22Mar 2024: 5Apr 2024: 8May 2024: 7Jun 2024: 2Jul 2024: 0Aug 2024: 0Sep 2024: 1Oct 2024: 0Nov 2024: 1Dec 2024: 12025Jan 2025: 1Feb 2025: 1Mar 2025: 0Apr 2025: 0May 2025: 1Jun 2025: 0Jul 2025: 0Aug 2025: 0Sep 2025: 0Oct 2025: 1Nov 2025: 0Dec 2025: 02026Jan 2026: 0Feb 2026: 0Mar 2026: 0Apr 2026: 0May 2026: 0Jun 2026: 0Jul 2026: 0Aug 2026: 0

Reports by the month FDA received them. FDA releases MAUDE data monthly; reports can arrive months after an event, so the newest months grow in later releases.

By year received

01973932022: 39320222023: 23120232024: 6120242025: 42025

Event type and report source

Event type, as classified on the report

Death0%0
Injury0%0
Malfunction100%689
Other0%0
Not given0%0

Who filed the report

Manufacturer report100%689
Voluntary report0%0
User facility report0%0
Distributor report0%0
Not given0%0

Grey bar: all 2,081 reports carrying product code PHV. Event type is the filer's classification and is not verified by FDA.

Device problems coded

Device problem (FDA code)ReportsShareShare across product code
Computer software problema software problem64593.6%84.2%
Wireless communication problema wireless connection problem568.1%5.3%
Problem with software installation91.3%0.7%
Communication or transmission problemthe device could not communicate or transmit60.9%0.9%
Application network problem10.1%0.2%
Calibration problem10.1%0%
Unauthorized access to computer system10.1%0.4%

FDA's device problem codes as entered on the report; one report can carry several. Generic codes such as "no apparent adverse event" are left out.

Patient problems coded

Patient problem (FDA code)ReportsShare
Hyperglycemiahigh blood sugar40.6%
Hypoglycemialow blood sugar20.3%
Distress10.1%
Nauseafeeling sick10.1%

Patient problem codes are present mainly in reports filed since 2019 and are often blank.

In context

MeasureCarelink Web UploaderProduct code PHVAll MAUDE reports
Reports6892,08126,136,888
Share of that pool—33.1%0%
Classified as death, per 1,000 reports009
Classified as injury0%0.4%36.2%
Classified as malfunction100%99.6%62.3%
Filed by the manufacturer100%99.2%94.9%

Shares are of reports, not of devices in use. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data."

Other brands with product code PHV

BrandReportsLatest 12 monthsClassified as death
Carelink Pro Online855590%
SOFTWARE, PRaaS VERSION 2.0A4531210%
Dexcom Clarity Software18070%
Carelink Personal Mmt-73333,6802330%
Carelink15,005180%

Ordered by report count for navigation only. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data." FDA also states that "common products may have a higher number of adverse events due to the higher total number of people using the product."

Questions about Carelink Web Uploader reports

How many FDA reports name Carelink Web Uploader?

689 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 1 in the latest 12 months.

What kinds of events are reported?

malfunction (100%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

computer software problem (93.6%), wireless communication problem (8.1%), problem with software installation (1.3%), communication or transmission problem (0.9%) and application network problem (0.1%). These are FDA's device problem codes as entered on the report.

Who files these reports?

manufacturer reports (100%). Manufacturers and user facilities are required to report; voluntary reports come from health professionals and the public.

Do these reports show that Carelink Web Uploader was at fault?

No. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data." FDA adds that "a causal relationship cannot be established between product and reactions listed in a report."

How do I report a problem with a medical device?

Through FDA MedWatch (Form FDA 3500 for health professionals and consumers), or to the manufacturer. See the guide on how to report.

Where this comes from. Counts are built from the openFDA Device Adverse Event (MAUDE) bulk export released 28 Sep 2026, which holds reports FDA received through 31 Aug 2026. Brand, generic and manufacturer names are as written on the reports; product code names come from FDA's device classification. A report counts here when any device it lists carries this brand name after punctuation and capitalisation are normalised. No report narrative, lot number, patient detail or reporter identity is published. See the methodology and sources; FDA's record is authoritative, and corrections are handled within five working days.

Drug data (FAERS) through 30 Jun 2026; device data (MAUDE) through 31 Aug 2026. Not medical advice.