Devices › Catheter, percutaneous transluminal coronary angioplasty (ptca), cutting/scoring
Device brand name · Catheter percutaneous transluminal coronary angioplasty ptca cutting/scoring
WOLVERINE Coronary Cutting Balloon MONORAIL: medical device reports filed with FDA
4,535 reports name it, 2018–2026. Manufacturer given most often on reports: Boston Scientific. Product code NWX.
- 4,535
- device reports naming the brand
- 0% of all MAUDE reports · about 539 a year
- 746
- reports, 12 months to August 2026
- 600 in the 12 months before
- 97.6%
- classified as malfunction
- 93.4% across the product code
- 0.2%
- classified as death, as reported
- 10 reports · not verified by FDA
FDA's MAUDE database holds 4,535 reports that name the brand "WOLVERINE Coronary Cutting Balloon MONORAIL" (catheter percutaneous transluminal coronary angioplasty ptca cutting/scoring), received between February 2018 and August 2026; the manufacturer given most often on reports is Boston Scientific. Spellings of one product vary from report to report.
746 reports arrived in the 12 months to August 2026, up 24% from 600 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 (97.6%), injury (2.1%) and death (0.2%); across all catheter, percutaneous transluminal coronary angioplasty (ptca), cutting/scoring reports (product code NWX) death is recorded in 0.7% and malfunction in 93.4%. Event type is the reporter's classification of the report, not a verified outcome.
The device problems coded most often are material rupture (77.6%), break (6%) and failure to advance (6%). The patient problems coded most often are foreign body in patient, vascular dissection and device embedded in tissue or plaque. 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 7,792 reports carrying product code NWX. 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 |
|---|---|---|---|
| Material rupture | 3,521 | 77.6% | 70.9% |
| Breakthe device broke | 271 | 6% | 7.6% |
| Failure to advance | 271 | 6% | 5.4% |
| Nonstandard device | 160 | 3.5% | 2.1% |
| Entrapment of device | 136 | 3% | 2.8% |
| Difficult to removethe device was hard to remove | 134 | 3% | 3.5% |
| Inflation problem | 125 | 2.8% | 2.5% |
| Detachment of device or device componentpart of the device came off | 101 | 2.2% | 2.7% |
| Material integrity problema problem with the device material | 93 | 2.1% | 1.5% |
| Material deformation | 90 | 2% | 1.8% |
| Leak/splashthe device leaked | 89 | 2% | 2% |
| Difficult to advance | 70 | 1.5% | 1.4% |
| Device dislodged or dislocated | 54 | 1.2% | 0.9% |
| Material puncture/hole | 37 | 0.8% | 0.6% |
| Fluid/blood leak | 36 | 0.8% | 0.7% |
| Material separation | 28 | 0.6% | 0.8% |
| Physical resistance/sticking | 26 | 0.6% | 0.5% |
| Failure to deflate | 18 | 0.4% | 0.3% |
| Deflation problem | 14 | 0.3% | 0.6% |
| Device-device incompatibility | 11 | 0.2% | 0.2% |
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 |
|---|---|---|
| Foreign body in patientpart of a device left in the patient | 25 | 0.6% |
| Vascular dissection | 17 | 0.4% |
| Device embedded in tissue or plaque | 14 | 0.3% |
| Chest painchest pain | 5 | 0.1% |
| Cardiac arrestthe heart stopped | 4 | 0.1% |
| Low blood pressure/ hypotension | 4 | 0.1% |
| No patient involvement | 4 | 0.1% |
| Air embolism | 3 | 0.1% |
| Ischemia | 3 | 0.1% |
| Obstruction/occlusion | 3 | 0.1% |
| Perforation | 3 | 0.1% |
| Perforation of vessels | 3 | 0.1% |
| Bradycardiaslow heart rate | 2 | 0% |
| Cardiac tamponade | 2 | 0% |
| Intimal dissection | 2 | 0% |
Patient problem codes are present mainly in reports filed since 2019 and are often blank.
In context
| Measure | WOLVERINE Coronary Cutting Balloon MONORAIL | Product code NWX | All MAUDE reports |
|---|---|---|---|
| Reports | 4,535 | 7,792 | 26,136,888 |
| Share of that pool | — | 58.2% | 0% |
| Classified as death, per 1,000 reports | 2 | 7 | 9 |
| Classified as injury | 2.1% | 5.9% | 36.2% |
| Classified as malfunction | 97.6% | 93.4% | 62.3% |
| Filed by the manufacturer | 100% | 99.4% | 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 NWX
| Brand | Reports | Latest 12 months | Classified as death |
|---|---|---|---|
| Flextome Cutting Balloon | 1,656 | 0 | 0.3% |
| Small Peripheral Cutting Balloon | 927 | 0 | 0% |
| Wolverine Coronary Cutting Balloon | 380 | 59 | 4.7% |
| Wolverine Peripheral Cutting Balloon | 355 | 81 | 0% |
| Emerge | 3,724 | 168 | 1.8% |
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 WOLVERINE Coronary Cutting Balloon MONORAIL reports
How many FDA reports name WOLVERINE Coronary Cutting Balloon MONORAIL?
4,535 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 746 in the latest 12 months.
What kinds of events are reported?
malfunction (97.6%), injury (2.1%) and death (0.2%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.
What device problems are coded?
material rupture (77.6%), break (6%), failure to advance (6%), nonstandard device (3.5%) and entrapment of device (3%). 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 WOLVERINE Coronary Cutting Balloon MONORAIL 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.