Reported Reactions

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

03977Sep 2021: 33Oct 2021: 43Nov 2021: 52Dec 2021: 402022Jan 2022: 33Feb 2022: 46Mar 2022: 55Apr 2022: 23May 2022: 45Jun 2022: 48Jul 2022: 32Aug 2022: 46Sep 2022: 50Oct 2022: 44Nov 2022: 49Dec 2022: 572023Jan 2023: 47Feb 2023: 47Mar 2023: 69Apr 2023: 51May 2023: 72Jun 2023: 67Jul 2023: 49Aug 2023: 52Sep 2023: 67Oct 2023: 45Nov 2023: 70Dec 2023: 522024Jan 2024: 64Feb 2024: 72Mar 2024: 59Apr 2024: 65May 2024: 51Jun 2024: 61Jul 2024: 70Aug 2024: 46Sep 2024: 43Oct 2024: 53Nov 2024: 39Dec 2024: 512025Jan 2025: 42Feb 2025: 43Mar 2025: 69Apr 2025: 57May 2025: 43Jun 2025: 46Jul 2025: 56Aug 2025: 58Sep 2025: 73Oct 2025: 77Nov 2025: 68Dec 2025: 612026Jan 2026: 71Feb 2026: 56Mar 2026: 67Apr 2026: 59May 2026: 57Jun 2026: 58Jul 2026: 61Aug 2026: 38

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

03476932018: 14720182019: 34420192020: 44220202021: 55220212022: 52820222023: 68820232024: 67420242025: 69320252026: 4672026

Event type and report source

Event type, as classified on the report

Death0.2%10
Injury2.1%97
Malfunction97.6%4,428
Other0%0
Not given0%0

Who filed the report

Manufacturer report100%4,535
Voluntary report0%0
User facility report0%0
Distributor report0%0
Not given0%0

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)ReportsShareShare across product code
Material rupture3,52177.6%70.9%
Breakthe device broke2716%7.6%
Failure to advance2716%5.4%
Nonstandard device1603.5%2.1%
Entrapment of device1363%2.8%
Difficult to removethe device was hard to remove1343%3.5%
Inflation problem1252.8%2.5%
Detachment of device or device componentpart of the device came off1012.2%2.7%
Material integrity problema problem with the device material932.1%1.5%
Material deformation902%1.8%
Leak/splashthe device leaked892%2%
Difficult to advance701.5%1.4%
Device dislodged or dislocated541.2%0.9%
Material puncture/hole370.8%0.6%
Fluid/blood leak360.8%0.7%
Material separation280.6%0.8%
Physical resistance/sticking260.6%0.5%
Failure to deflate180.4%0.3%
Deflation problem140.3%0.6%
Device-device incompatibility110.2%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)ReportsShare
Foreign body in patientpart of a device left in the patient250.6%
Vascular dissection170.4%
Device embedded in tissue or plaque140.3%
Chest painchest pain50.1%
Cardiac arrestthe heart stopped40.1%
Low blood pressure/ hypotension40.1%
No patient involvement40.1%
Air embolism30.1%
Ischemia30.1%
Obstruction/occlusion30.1%
Perforation30.1%
Perforation of vessels30.1%
Bradycardiaslow heart rate20%
Cardiac tamponade20%
Intimal dissection20%

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

In context

MeasureWOLVERINE Coronary Cutting Balloon MONORAILProduct code NWXAll MAUDE reports
Reports4,5357,79226,136,888
Share of that pool—58.2%0%
Classified as death, per 1,000 reports279
Classified as injury2.1%5.9%36.2%
Classified as malfunction97.6%93.4%62.3%
Filed by the manufacturer100%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

BrandReportsLatest 12 monthsClassified as death
Flextome Cutting Balloon1,65600.3%
Small Peripheral Cutting Balloon92700%
Wolverine Coronary Cutting Balloon380594.7%
Wolverine Peripheral Cutting Balloon355810%
Emerge3,7241681.8%

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.