MAUDE Adverse Event Report: Medtronic Mexico S. De R.L. De CV CONCERTO NYLON; DEVICE, VASCULAR, FOR PROMOTING EMBOLIZATION

Model Number	NV-3-4-HELIX
Medical Device Problem Code	Physical Resistance/Sticking (4012)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	05/14/2026
Type of Reportable Event	Malfunction
Event or Problem Description
Medtronic received a report that a coil could not be advanced.All devices were prepared as indicated in the ifu and no patient symptoms were reported.
Additional Manufacturer Narrative
H3: product analysis as found condition (condition of returned device): a concerto device was returned for analysis within a shipping box; within sealed biohazard pouch; within its opened inner pouch and within a dispenser track.The unknown micro catheter used in the event was not returned.The concerto device was returned within introducer sheath.Visual inspection/damage location details: the concerto pushwire was found to be bent at ~46.4cm, at ~86.9cm and broken but retained by release wire at ~153.0cm from proximal end.The implant coil was found to be already detached and not returned.All other subassemblies appeared to be normal, and no other anomalies were observed.Testing/analysis (including sem reports): the concerto device could not be used for resistance testing with an in-house micro catheter due to its returned condition.Conclusion: based on the device analysis and the reported information, the customers report of ¿coil resistance/stuck in cath¿ was unable to be confirmed.Possible cause for coil resistance in catheter is use of an incompatible device for delivery.It is likely the implant detachment was due to the pushwire break at break indicator causing the release wire to be pulled back and releasing the implant coil.It is possible the damage (break/bent) to the pushwire occurred upon opening the package and attempting to remove the product or after removing it from the package and preparing it per ifu.The root cause could not be determined.The model or lot number for the unknown catheter were not provided; therefore, compatibility could not be assessed.The root cause could not be determined.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: CONCERTO NYLON
• Common Device Name: DEVICE, VASCULAR, FOR PROMOTING EMBOLIZATION
• Manufacturer (Section D): Medtronic Mexico S. De R.L. De CV; av. paseo del cucapah #10510; tijuana,bc 22210 ; MX 22210
• Manufacturer (Section G): Medtronic Mexico S. De R.L. De CV; av. paseo del cucapah #10510; tijuana,bc 22210 ; MX 22210
• Manufacturer Contact: justin ellis ; 9775 toledo way; irvine, CA 92618 ; +1(763)526-5677
• MDR Report Key: 50898765
• Report Number: 9617601-2026-05790
• Device Sequence Number: 17599678
• Product Code: KRD
• UDI-Device Identifier: 00847536044890
• UDI-Public: (01)00847536044890(17)281204(10)232854914
• Combination Product (Y/N): N
• Initial Reporter Country: KS
• PMA/510(K) Number: K090046
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Foreign,Health Professional,Distributor
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 09/25/2026

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: NV-3-4-HELIX
• Device Catalogue Number: NV-3-4-HELIX
• Device Lot Number: 232854914
• Was Device Available for Evaluation?: Yes
• Date Returned to Manufacturer: 06/26/2026
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 08/31/2026
• Initial Report FDA Received Date: 09/25/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 12/04/2025
• 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 Sex: Unknown