MAUDE Adverse Event Report: W. L. GORE & ASSOCIATES, INC. GORE® EXCLUDER® ILIAC BRANCH ENDOPROSTHESIS; SYSTEM, ENDOVASCULAR GRAFT, AORTIC ANEURYSM TREATMENT

Catalog Number	HGB161407A
Medical Device Problem Code	Adverse Event Without Identified Device or Use Problem (2993)
Health Effect - Clinical Code	Thrombosis/Thrombus (4440)
Date of Event	08/12/2025
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
A1: no patient specific details have been provided.Therefore, the patient initials reflect the w.L.Gore internal case number.H6: a review of the manufacturing records for the device verified that the lot met all pre-release specifications.W.L.Gore & associates, inc.(gore) is submitting this report to comply with 21 c.F.R.Part 803, the medical device reporting regulation.This report is based upon information obtained by gore, which the company may not have been able to fully investigate or verify prior to the date the report was required by the fda.Blank fields present on this report include required fields and fields determined to be not applicable.Blank required fields indicate that the information was not provided, was deemed unavailable or was not applicable.This report does not constitute an admission or a conclusion by fda, gore, or its associates that the device, gore or its associates caused or contributed to the event described in the report.In particular, this report does not constitute a legal admission by anyone that the product described in this report has any defects or has malfunctioned, as defined from a legal standpoint.These words are included in the report and are fixed items for selection created by the fda, to categorize the type of event solely for the purpose of reporting pursuant to part 803.This statement should be included with any information or report disclosed to the public under the freedom of information act.
Event or Problem Description
The following was reported to gore from the imedidata study database: on (b)(6) 2025, this 79-year-old male patient underwent endovascular treatment for an aortoiliac aneurysm.The patient was treated with a gore® excluder® conformable aaa endoprosthesis (trunk ipsilateral leg endoprosthesis), four gore® excluder® aaa endoprosthesis devices (three contralateral leg endoprosthesis devices and one aorta extender endoprosthesis), and two gore® excluder® iliac branch endoprosthesis devices.Two gore® excluder® iliac branch endoprosthesis devices were implanted in the left iliac artery.The right internal iliac artery was coil embolized and two contralateral leg endoprosthesis devices were implanted in the right external iliac artery.There was successful access, delivery, and accurate deployment of the devices to the intended location, and successful retrieval of the delivery systems.The patient was discharged home on (b)(6) 2025.On (b)(6) 2025, it was reported that the patient had bilateral buttock claudication related to gore registry device (excluder iliac branch endoprosthesis internal iliac component (iic)).This event is ongoing, but no treatment is required.On (b)(6) 2025, the patient had "left ibe device occlusion" related to gore registry device (excluder iliac branch endoprosthesis internal iliac component (iic)).This event is ongoing, but no treatment is required.
Additional Manufacturer Narrative
Emdr section h6, code b15 added to reflect results of investigation.On (b)(6) 2025, the patient underwent a cta follow-up.It was noted loss of patency of the excluder iliac branch endoprosthesis internal iliac component (iic).

• Brand Name: GORE® EXCLUDER® ILIAC BRANCH ENDOPROSTHESIS
• Common Device Name: SYSTEM, ENDOVASCULAR GRAFT, AORTIC ANEURYSM TREATMENT
• Manufacturer (Section D): W. L. GORE & ASSOCIATES, INC.; 1505 n. fourth street; flagstaff AZ 86004
• Manufacturer (Section G): MEDICAL SILICON VALLEY B/P; 2890 de la cruz blvd.; santa clara CA 95050
• Manufacturer Contact: asami aizawa ; 1505 n. fourth street; flagstaff, AZ 86004 ; 9285263030
• MDR Report Key: 23847465
• Report Number: 3013164176-2025-02829
• Device Sequence Number: 18527609
• Product Code: MIH
• UDI-Device Identifier: 00733132635337
• UDI-Public: (01)00733132635337(17)280218
• Combination Product (Y/N): N
• Initial Reporter Country: JA
• PMA/510(K) Number: P020004
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2025
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Foreign,Study
• Initial Reporter Occupation: Physician
• Type of Report: Initial,Followup
• Report Date (Section B): 05/19/2026

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 Catalogue Number: HGB161407A
• 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: 12/08/2025
• Supplement Date Received by Manufacturer: 05/18/2026
• Initial Report FDA Received Date: 12/19/2025
• Supplement Report FDA Received Date: 05/19/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 02/19/2025
• Is the Device Labeled for Single Use? (Y/N): Yes
• Usage of Device: Initial
• Patient Sequence Number: 1
• Outcome Attributed to Adverse Event: Other
• Patient Age: 79 YR
• Patient Sex: Male
• Patient Weight: 56 KG