Reported Reactions

Devices › Device, vascular, for promoting embolization

Device brand name · Device vascular for promoting embolization

Concerto Nylon: medical device reports filed with FDA

900 reports name it, 2016–2026. Manufacturer given most often on reports: Micro Therapeutics Ev3. Product code KRD.

900
device reports naming the brand
0% of all MAUDE reports · about 90 a year
160
reports, 12 months to August 2026
118 in the 12 months before
91.9%
classified as malfunction
74.9% across the product code
2.6%
classified as death, as reported
23 reports · not verified by FDA

FDA's MAUDE database holds 900 reports that name the brand "Concerto Nylon" (device vascular for promoting embolization), received between July 2016 and August 2026; the manufacturer given most often on reports is Micro Therapeutics Ev3. Spellings of one product vary from report to report.

160 reports arrived in the 12 months to August 2026, up 36% from 118 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 (91.9%), injury (5.6%) and death (2.6%); across all device, vascular, for promoting embolization reports (product code KRD) death is recorded in 1.6% and malfunction in 74.9%. Event type is the reporter's classification of the report, not a verified outcome.

The device problems coded most often are separation failure (46%), physical resistance/sticking (32.8%) and detachment of device or device component (17.1%). The patient problems coded most often are foreign body in patient, hematoma and convulsion/seizure. 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

01326Sep 2021: 4Oct 2021: 6Nov 2021: 2Dec 2021: 32022Jan 2022: 6Feb 2022: 3Mar 2022: 11Apr 2022: 16May 2022: 12Jun 2022: 10Jul 2022: 9Aug 2022: 6Sep 2022: 15Oct 2022: 7Nov 2022: 7Dec 2022: 72023Jan 2023: 8Feb 2023: 12Mar 2023: 5Apr 2023: 6May 2023: 9Jun 2023: 15Jul 2023: 2Aug 2023: 20Sep 2023: 12Oct 2023: 11Nov 2023: 9Dec 2023: 62024Jan 2024: 19Feb 2024: 15Mar 2024: 26Apr 2024: 13May 2024: 13Jun 2024: 11Jul 2024: 13Aug 2024: 9Sep 2024: 2Oct 2024: 1Nov 2024: 17Dec 2024: 72025Jan 2025: 10Feb 2025: 10Mar 2025: 11Apr 2025: 13May 2025: 9Jun 2025: 13Jul 2025: 19Aug 2025: 6Sep 2025: 13Oct 2025: 15Nov 2025: 10Dec 2025: 62026Jan 2026: 25Feb 2026: 22Mar 2026: 15Apr 2026: 4May 2026: 6Jun 2026: 13Jul 2026: 14Aug 2026: 17

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

0731462016: 520162017: 92018: 3820182019: 792020: 6220202021: 862022: 10920222023: 1152024: 14620242025: 1352026: 1162026

Event type and report source

Event type, as classified on the report

Death2.6%23
Injury5.6%50
Malfunction91.9%827
Other0%0
Not given0%0

Who filed the report

Manufacturer report99.9%899
Voluntary report0%0
User facility report0%0
Distributor report0%0
Not given0.1%1

Grey bar: all 14,553 reports carrying product code KRD. Event type is the filer's classification and is not verified by FDA.

Device problems coded

Device problem (FDA code)ReportsShareShare across product code
Separation failure41446%18.8%
Physical resistance/sticking29532.8%9.3%
Detachment of device or device componentpart of the device came off15417.1%12.6%
Material deformation717.9%3.5%
Breakthe device broke697.7%6.3%
Inadequacy of device shape and/or size232.6%0.6%
Packaging problem192.1%0.9%
Migrationthe device moved from where it was placed171.9%3.4%
Unintended movement151.7%1.2%
Therapy delivered to incorrect body area111.2%0.4%
Difficult or delayed positioning91%0.8%
Stretched80.9%11.1%
Detachment of device component60.7%3.8%
Deformation due to compressive stress40.4%1.2%
Compatibility problem30.3%0.1%
Display or visual feedback problem30.3%0.1%
Incomplete or missing packaging30.3%0.1%
Activation problem10.1%0.7%
Device damaged by another device10.1%0.1%
Difficult to position10.1%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
Foreign body in patientpart of a device left in the patient222.4%
Hematomaa collection of blood under the skin or in tissue121.3%
Convulsion/seizure101.1%
Painpain, site not specified91%
Pseudoaneurysm91%
Embolism/embolus60.7%
Hemorrhage/blood loss/bleeding60.7%
Inflammationinflammation60.7%
Ischemia60.7%
Thrombosis/thrombus60.7%
Device embedded in tissue or plaque50.6%
Gastrointestinal hemorrhage50.6%
Sepsisa severe body-wide response to infection50.6%
Arrhythmia20.2%
Cardiac arrestthe heart stopped20.2%

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

In context

MeasureConcerto NylonProduct code KRDAll MAUDE reports
Reports90014,55326,136,888
Share of that pool—6.2%0%
Classified as death, per 1,000 reports26169
Classified as injury5.6%22.9%36.2%
Classified as malfunction91.9%74.9%62.3%
Filed by the manufacturer99.9%97.3%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 KRD

BrandReportsLatest 12 monthsClassified as death
Axium Prime Brpl 3d9021351%
Interlock?688370%
Interlock-3562620.2%
Axium Prime Brpl Hlx6161061%
Interlock?-35542942.2%
Axium 3d429481.6%
AZUR CX 35 Detachable388580%
Axium Framing Coil286570%
Azur CX Detachable278380%
Concerto Pgla Hlx247540.8%
Axium Helix231243%
Retracta Detachable Embolization Coil228200.9%
Microvascular Plug165110.6%
Axium Prime Bare Pl 3d150270%
Concerto8431992.7%

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 Concerto Nylon reports

How many FDA reports name Concerto Nylon?

900 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 160 in the latest 12 months.

What kinds of events are reported?

malfunction (91.9%), injury (5.6%) and death (2.6%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

separation failure (46%), physical resistance/sticking (32.8%), detachment of device or device component (17.1%), material deformation (7.9%) and break (7.7%). These are FDA's device problem codes as entered on the report.

Who files these reports?

manufacturer reports (99.9%). Manufacturers and user facilities are required to report; voluntary reports come from health professionals and the public.

Do these reports show that Concerto Nylon 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.