MAUDE Adverse Event Report: Micro Therapeutics, Inc. dba ev3 PIPELINE FLEX W/SHIELD TECHNOLOGY; INTRACRANIAL ANEURYSM FLOW DIVERTER

Model Number	PED2-450-18
Medical Device Problem Codes	Material Twisted/Bent (2981); Packaging Problem (3007); Activation Failure (3270)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	08/24/2026
Type of Reportable Event	Malfunction
Event or Problem Description
Medtronic received a report that on (b)(6)2026, the outer packaging of the pipeline stent was intact.After the package was opened, the stent was found twisted and difficult to deploy before use.The procedure was completed after replacement with a new flow-diverting stent.There was no harm reported.No patient symptoms or complications associated with this event were reported.Event cause analysis was performed by the user, who described it as follows: the flow-diverting stent had a precision fine-mesh structure.During manufacturing, slight tolerances existed in the stent braiding density and wire tension, and outgoing quality-control screening was insufficient, resulting in substandard elastic recoil and structural stability in some stents.During packaging and transportation, even when the outer packaging remained intact, the stent could be slightly compressed inside the delivery sheath, which could lead to internal structural distortion and pre-deformation and prevent it from deploying normally and uniformly during the procedure.
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.

• Brand Name: PIPELINE FLEX W/SHIELD TECHNOLOGY
• Common Device Name: INTRACRANIAL ANEURYSM FLOW DIVERTER
• Manufacturer (Section D): Micro Therapeutics, Inc. dba ev3; 9775 toledo way; irvine CA 92618
• Manufacturer (Section G): Micro Therapeutics, Inc. dba ev3; 9775 toledo way; irvine CA 92618
• Manufacturer Contact: justin ellis ; 9775 toledo way; irvine, CA 92618 ; +1(763)526-5677
• MDR Report Key: 50897428
• Report Number: 2029214-2026-01913
• Device Sequence Number: 16130421
• Product Code: OUT
• UDI-Device Identifier: 00763000449377
• UDI-Public: (01)00763000449377(17)290203(10)D092529
• Combination Product (Y/N): N
• Initial Reporter Country: CH
• PMA/510(K) Number: P100018
• 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,Company Representative
• 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: PED2-450-18
• Device Catalogue Number: PED2-450-18
• Device Lot Number: D092529
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 09/23/2026
• Initial Report FDA Received Date: 09/25/2026
• Date Device Manufactured: 02/04/2026
• 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: 44 YR
• Patient Sex: Female