MAUDE Adverse Event Report: MICRO THERAPEUTICS, INC. DBA EV3 PIPELINE FLEX; INTRACRANIAL ANEURYSM FLOW DIVERTER

Model Number	PED-500-16
Medical Device Problem Codes	Material Deformation (2976); Activation Failure (3270)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	09/13/2021
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
If information is provided in the future, a supplemental report will be issued.
Event or Problem Description
Medtronic received information regarding a pipeline that failed to open at the distal end.The patient was undergoing a procedure for flow diverter implantation to treat an unruptured saccular ophthalmic artery aneurysm.The aneurysm max diameter was 7mm and the neck diameter was 5mm.Vessel tortuosity was moderate.It was reported that the devices were prepared according to the instructions for use (ifu).The phenom27 microcatheter was in place and the pipeline was delivered.However, the distal tip of the pipeline could not be opened after more than 50% of the pipeline was deployed.The middle section of the pipeline was positioned in a bend.The pipeline was resheathed 2 or less times.The pipeline still could not be opened after repeated pushing, pulling, and swinging.Finally the pipeline was resheathed and removed together with the phenom microcatheter.Burrs were observed on the tip of the pipeline with thrombus adhesion observed.Both devices were replaced and the new pipeline was successfully implanted.  there were no patient symptoms or complications associated with this event.Post-procedure angiography shoed slowed flow to the aneurysm and that the patient blood vessels were normal.
Additional Manufacturer Narrative
H3: no damages or irregularities were found with the phenom-27 catheter hub.The phenom-27 micro catheter was found kinked at ~0.8cm from the distal end.No damages or irregularities were found with the distal tip or marker band.No damages or irregularities were found with the returned pusher.The hypotube was found unstretched and undamaged with the ptfe shrink tubing still intact.No damages were found with the distal marker, re-sheathing marker, resheathing pad or with the proximal bumper.The distal and proximal dps restraints were found to be intact.The dps sleeves were found intact with no signs of damage.The tip coil was found intact.Both braid ends were found fully opened, damaged and frayed.The middle braid was found flattened.Based on the analysis findings, the customer report of ¿failure/incomplete open distal (flex)¿ and ¿pipeline damaged during delivery/retrieval¿ could not be confirmed through device analysis as the device was returned fully opened and outside of its protective introducer sheath.Possible causes for failure to open are patient vessel tortuosity, damaged braid, braid improperly sized to anatomy, braid was overstretched during delivery, user deploys braid in vessel braid, presence of other indwelling stents or inappropriate anatomy.The braid was found damaged.Potential causes for braid damage are resheathing more than 2 times, high force delivery, over-manipulation, delivering/retracting delivery wire against resistance, deploying/resheathing braid against resistance, or damage during return shipping as the braids were returned already deployed and out of its protective introducer sheath and dispenser coil.Customer reported middle of pipeline was positioned in a bend, device was resheathed 2 or less times, all devices were prepared per ifu, and patient vessel tortuosity as moderate.There is no indication that the event is related to a potential manufacturing issue.Medtronic is submitting this report to comply with fda reporting regulations under 21 cfr parts 4 and 803.This report is based upon information obtained by medtronic, which the company may not have been able to fully investigate or verify prior to the date the report was required by the fda.Medtronic has made reasonable efforts to obtain more complete information and has provided 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.In particular, this report does not constitute an admission by anyone that the product described in this report has any ¿defects¿ or has ¿malfunctioned¿.These words are included in the fda 3500a form and are fixed items for selection created by the fda to categorize the type of event solely for the purpose of regulatory reporting.Medtronic objects to the use of these words and others like them because of the lack of definition and the connotations implied by these terms.This statement should be included with any information or report disclosed to the public under the freedom of information act.Any required fields that are unpopulated are blank because the information is currently unknown or unavailable.A good faith effort will be made to obtain the applicable information relevant to the report.If information is provided in the future, a supplemental report will be issued.

• Brand Name: PIPELINE FLEX
• 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: glen belmer ; 9775 toledo way; irvine, CA 92618 ; 6122713209
• MDR Report Key: 12474530
• Report Number: 2029214-2021-01168
• Device Sequence Number: 3940011
• Product Code: OUT
• UDI-Device Identifier: 00847536019669
• UDI-Public: 00847536019669
• Combination Product (Y/N): N
• Initial Reporter Country: CH
• PMA/510(K) Number: P100018
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2021
• Device Explanted Year: 2021
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Foreign,Health Professional,Company Representative
• Initial Reporter Occupation: Other
• Type of Report: Initial,Followup
• Report Date (Section B): 12/08/2021

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 Expiration Date: 03/31/2024
• Device Model Number: PED-500-16
• Device Catalogue Number: PED-500-16
• Device Lot Number: B161965
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 10/19/2021
• Is the Reporter a Health Professional?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 09/13/2021
• Supplement Date Received by Manufacturer: 11/28/2021
• Initial Report FDA Received Date: 09/15/2021
• Supplement Report FDA Received Date: 12/08/2021
• Date Device Manufactured: 04/22/2021
• 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: 49 YR
• Patient Sex: Male