MAUDE Adverse Event Report: MEDTRONIC IRELAND ONYX FRONTIER; CORONARY DRUG-ELUTING STENT

Model Number	ONYXNG25022UX
Medical Device Problem Codes	Difficult to Insert (1316); Difficult to Advance (2920); Material Deformation (2976); Positioning Problem (3009)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	11/13/2025
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
Medtronic submits this report to comply with fda regulations 21 cfr parts 4 and 803.Medtronic has made reasonable efforts to provide as much relevant information as is available to the company as of the submission date of this report.This report does not constitute an admission or a conclusion by fda, medtronic, or its employees that the device, medtronic, or its employee caused or contributed to the event described in the report.Any required fields that are unpopulated are blank because the information is currently unknown or unavailable.Medtronic will submit a supplemental report if additional relevant information becomes known.
Event or Problem Description
It was reported that during a procedure involving one onyx frontier coronary drug eluting stent, the stent failed to cross the lesion and a stent strut lifted up.An attempt was made to advance the stent in the ostium of the right coronary artery (rca) but was unsuccessful.It was also reported that some resistance was noted when putting the stent on the wire but the device still went on the wire.The lesion being treated was moderately tortuous, mildly calcified with 99% stenosis in the distal rca.The device was inspected prior to use and negative prep was performed with no issues noted.The lesion was pre-dilated.The device did not pass through a previously deployed stent.Resistance was encountered when advancing the device.Excessive force was not used during delivery.No patient complications have been reported as a result of this event.
Additional Manufacturer Narrative
Additional information: a non-medtronic guidewire was being back loaded through the tip.It was not difficult to remove the protective sheath/packaging stylette.The guidewire was examined and flushed before use with no issues noted.The guidewire had been used successfully with other devices.The same guidewire was used with the replacement device.Medtronic submits this report to comply with fda regulations 21 cfr parts 4 and 803.Medtronic has made reasonable efforts to provide as much relevant information as is available to the company as of the submission date of this report.This report does not constitute an admission or a conclusion by fda, medtronic, or its employees that the device, medtronic, or its employee caused or contributed to the event described in the report.Any required fields that are unpopulated are blank because the information is currently unknown or unavailable.Medtronic will submit a supplemental report if additional relevant information becomes known.
Additional Manufacturer Narrative
Product analysis: the stent was positioned on the balloon between the marker bands in accordance with the positioning specification.However, due to d eformation, the stent did not meet the visual acceptance criteria.Deformation was observed on the mid stent wraps, with struts raised.No deformation was evident on the distal tip.No other damage was observed on the remainder of the device.Medtronic submits this report to comply with fda regulations 21 cfr parts 4 and 803.Medtronic has made reasonable efforts to provide as much relevant information as is available to the company as of the submission date of this report.This report does not constitute an admission or a conclusion by fda, medtronic, or its employees that the device, medtronic, or its employee caused or contributed to the event described in the report.Any required fields that are unpopulated are blank because the information is currently unknown or unavailable.Medtronic will submit a supplemental report if additional relevant information becomes known.

• Brand Name: ONYX FRONTIER
• Common Device Name: CORONARY DRUG-ELUTING STENT
• Manufacturer (Section D): MEDTRONIC IRELAND; parkmore business park west; galway ; EI
• Manufacturer (Section G): MEDTRONIC IRELAND; parkmore business park west; galway ; EI
• Manufacturer Contact: alison sweeney ; parkmore business park west; galway ; EI ; 091708096
• MDR Report Key: 23693441
• Report Number: 9612164-2025-05965
• Device Sequence Number: 21404580
• Product Code: NIQ
• UDI-Device Identifier: 00763000511319
• UDI-Public: (01)00763000511319(17)270619(10)0012322434(20)01
• Combination Product (Y/N): N
• Initial Reporter State: NC
• Initial Reporter Country: US
• PMA/510(K) Number: P160043
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Health Professional,Company Representative
• Initial Reporter Occupation: Physician
• Type of Report: Initial,Followup,Followup
• Report Date (Section B): 01/28/2026

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Operator of Device: Health Professional
• Device Model Number: ONYXNG25022UX
• Device Catalogue Number: ONYXNG25022UX
• Device Lot Number: 0012322434
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 11/13/2025
• Supplement Date Received by Manufacturer: 12/04/2025; 01/08/2026
• Initial Report FDA Received Date: 12/02/2025
• Supplement Report FDA Received Date: 12/17/2025; 01/28/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 06/19/2024
• Is the Device Labeled for Single Use? (Y/N): Yes
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Initial
• Patient Sequence Number: 1
• Patient Age: 64 YR
• Patient Sex: Female