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 Code	Adverse Event Without Identified Device or Use Problem (2993)
Health Effect - Clinical Codes	Skin Discoloration (2074); Transient Ischemic Attack (2109); Paresthesia (4421)
Date of Event	09/08/2023
Type of Reportable Event	Serious Injury
Event or Problem Description
Medtronic received a report about a patient who underwent a procedure on (b)(6) 2023 in which a pipeline stent was implanted.The patient was undergoing surgery for treatment of a saccular aneurysm with a max diameter of 7.3mm and a 2.4mm neck diameter.The aneurysm dome height was 6.2mm and the dome width was 6.8mm.The landing zone artery size measurements were 3.5mm distally and 4.4mm proximally.There were no intraoperative or device issues that were reported.It was reported that the day after the procedure, the patient had discoloration of the left 4th and 5th digits with paresthesia with weakness in the left hand.Symptoms were resolved.The patient was hospitalized from (b)(6) 2023 and given aspirin as a medication.The patient was discharged on (b)(6) 2023.The patient outcome status was noted as recovered/resolved.Ancillary devices include a phenom 27 microcatheter.
Additional Manufacturer Narrative
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.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.
Additional Manufacturer Narrative
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.
Event or Problem Description
Additional information received reported that the site assessed the event as possibly related to the disease under study, the device, and the procedure.The patient had been treated for a saccular, sidewall aneurysm located in the c2 segment.
Event or Problem Description
Additional information was received that the clinical events committee (cec) determined transient ischemic attack (tia).
Additional Manufacturer Narrative
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.
Event or Problem Description
Additional information received reported that the ae was not related to the disease under study.
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
Additional information was received that the segment of the aneurysm was updated from c2 to c7.
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.
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
Additional information was received updating the sponsor assessment to cec comments symptom in vascular territory of treated aneurysm but no imaging evidence of device thrombosis or stroke, uncertain causality.
Additional Manufacturer Narrative
B5: clarification of aspirin administration-patient was on maintenance dose of aspirin from (b)(6) 2023 to (b)(6) 2023.Information not provided in previous reports: side branches were not covered by pipeline device on day of implant.H10: this report has been determined to be a duplicate see 2029214-2024-02413.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
Patient was on maintenance dose of aspirin from (b)(6) 2023 to (b)(6) 2023.Side branches were not covered by pipeline device on day of implant.

• 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 ; 7635265677
• MDR Report Key: 17822408
• Report Number: 2029214-2023-01867
• Device Sequence Number: 6161701
• Product Code: OUT
• UDI-Device Identifier: 00763000284534
• UDI-Public: (01)00763000284534(17)241221(10)B316450
• Combination Product (Y/N): N
• Initial Reporter State: OH
• Initial Reporter Country: US
• PMA/510(K) Number: P100018
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2023
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Study,Health Professional,Company Representative
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial,Followup,Followup,Followup,Followup
• Report Date (Section B): 12/19/2025

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: No
• Operator of Device: Health Professional
• Device Expiration Date: 12/21/2024
• Device Model Number: PED2-450-18
• Device Catalogue Number: PED2-450-18
• Device Lot Number: B316450
• 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: 09/12/2023
• Supplement Date Received by Manufacturer: 09/25/2023; 12/19/2023; 03/13/2024; 06/14/2024; 02/13/2025; 12/11/2025
• Initial Report FDA Received Date: 09/26/2023
• Supplement Report FDA Received Date: 10/23/2023; 01/17/2024; 04/03/2024; 07/11/2024; 02/28/2025; 12/19/2025
• Date Device Manufactured: 12/22/2021
• 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
• Outcome Attributed to Adverse Event: Hospitalization
• Patient Age: 80 YR
• Patient Sex: Female
• Patient Weight: 98 KG
• Patient Ethnicity: Non Hispanic
• Patient Race: White