Devices › Dislodger, stone, basket, ureteral, metal
Device brand name · Ffl dislodger stone basket ureteral metal
Ncircle Delta Wire Tipless Stone Extractor: medical device reports filed with FDA
281 reports name it, 2016–2026. Manufacturer given most often on reports: Cook. Product code FFL.
- 281
- device reports naming the brand
- 0% of all MAUDE reports · about 27 a year
- 28
- reports, 12 months to August 2026
- 24 in the 12 months before
- 98.2%
- classified as malfunction
- 82.7% across the product code
- 0%
- classified as death, as reported
- 0 reports · not verified by FDA
281 medical device reports received by FDA name the brand "Ncircle Delta Wire Tipless Stone Extractor" (ffl dislodger stone basket ureteral metal); the manufacturer given most often on reports is Cook; received from March 2016 to August 2026. Brand names are as the reporter or manufacturer wrote them, so one product can appear under several spellings.
28 reports arrived in the 12 months to August 2026, up 17% from 24 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 (98.2%) and injury (1.8%); across all dislodger, stone, basket, ureteral, metal reports (product code FFL) death is recorded in 0.1% and malfunction in 82.7%. Event type is the reporter's classification of the report, not a verified outcome.
The device problems coded most often are difficult to open or close (71.2%), break (16.4%) and deformation due to compressive stress (5%). The patient problems coded most often are no patient involvement, device embedded in tissue or plaque and foreign body in patient. 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
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
Event type and report source
Event type, as classified on the report
Who filed the report
Grey bar: all 6,121 reports carrying product code FFL. Event type is the filer's classification and is not verified by FDA.
Device problems coded
| Device problem (FDA code) | Reports | Share | Share across product code |
|---|---|---|---|
| Difficult to open or close | 200 | 71.2% | 32.4% |
| Breakthe device broke | 46 | 16.4% | 28.6% |
| Deformation due to compressive stress | 14 | 5% | 1% |
| Device operates differently than expectedthe device behaved unexpectedly | 11 | 3.9% | 2% |
| Material twisted/bent | 11 | 3.9% | 1.5% |
| Material deformation | 10 | 3.6% | 3.1% |
| Material separation | 8 | 2.8% | 4.8% |
| Difficult or delayed positioning | 7 | 2.5% | 0.4% |
| Loss of or failure to bond | 5 | 1.8% | 2.9% |
| Device damaged prior to usethe device was damaged before use | 4 | 1.4% | 1.3% |
| Component missing | 3 | 1.1% | 0.3% |
| Bent | 2 | 0.7% | 0.2% |
| Device damaged by another device | 2 | 0.7% | 0.1% |
| Device operational issue | 2 | 0.7% | 0.2% |
| Fracturea broken bone | 2 | 0.7% | 3.1% |
| Loose or intermittent connection | 2 | 0.7% | 0.2% |
| Difficult to removethe device was hard to remove | 1 | 0.4% | 3.1% |
| Mechanical jam | 1 | 0.4% | 0.2% |
| Out-of-box failure | 1 | 0.4% | 0% |
| Unraveled material | 1 | 0.4% | 0% |
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) | Reports | Share |
|---|---|---|
| No patient involvement | 17 | 6% |
| Device embedded in tissue or plaque | 1 | 0.4% |
| Foreign body in patientpart of a device left in the patient | 1 | 0.4% |
Patient problem codes are present mainly in reports filed since 2019 and are often blank.
In context
| Measure | Ncircle Delta Wire Tipless Stone Extractor | Product code FFL | All MAUDE reports |
|---|---|---|---|
| Reports | 281 | 6,121 | 26,136,888 |
| Share of that pool | — | 4.6% | 0% |
| Classified as death, per 1,000 reports | 0 | 1 | 9 |
| Classified as injury | 1.8% | 16.4% | 36.2% |
| Classified as malfunction | 98.2% | 82.7% | 62.3% |
| Filed by the manufacturer | 100% | 93.8% | 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 FFL
| Brand | Reports | Latest 12 months | Classified as death |
|---|---|---|---|
| NCircle Tipless Stone Extractor | 1,463 | 232 | 0% |
| Ngage Nitinol Stone Extractor | 1,193 | 1 | 0% |
| Zero Tip | 485 | 44 | 0% |
| Ncompass Nitinol Tipless Stone Extractor | 172 | 14 | 0% |
| Zero Tip Nitinol Stone Retrieval Basket | 173 | 0 | 0% |
| Gemini | 172 | 11 | 0.6% |
| Boston Scientific | 580 | 5 | 3.3% |
| Karl Storz | 633 | 0 | 2.1% |
| Cook | 271 | 6 | 2.2% |
| Olympus | 2,240 | 9 | 2.5% |
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 Ncircle Delta Wire Tipless Stone Extractor reports
How many FDA reports name Ncircle Delta Wire Tipless Stone Extractor?
281 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 28 in the latest 12 months.
What kinds of events are reported?
malfunction (98.2%) and injury (1.8%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.
What device problems are coded?
difficult to open or close (71.2%), break (16.4%), deformation due to compressive stress (5%), device operates differently than expected (3.9%) and material twisted/bent (3.9%). 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 Ncircle Delta Wire Tipless Stone Extractor 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.