MAUDE Adverse Event Report: W. L. GORE & ASSOCIATES, INC. GORE® DRYSEAL FLEX INTRODUCER SHEATH; INTRODUCER, CATHETER

Catalog Number	DSF2233
Medical Device Problem Code	Patient Device Interaction Problem (4001)
Health Effect - Clinical Code	Vascular Dissection (3160)
Date of Event	02/26/2026
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
H6: a review of the manufacturing records for the device verified that the lot met all pre-release specifications.H6: d1101, ifu statements the gore® dryseal flex introducer sheath instructions for use (ifu) was reviewed and the following ifu statements were identified in relation to the reported event.Warnings adequate vessel access is required to introduce the sheath into the vasculature.Careful evaluation of vessel size, anatomy, tortuosity, and disease state (including calcification, plaque, and thrombus) is required to ensure successful sheath introduction and subsequent withdrawal.If vessel is not adequate for access, major bleeding, vessel damage, or serious injury to the patient, including death, may result.¿ if vessel size is smaller than the nominal body od (table 1), major bleeding, vessel damage, or serious injury to the patient, including death, may result.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 information was reported to gore: on (b)(6) 2026, the patient underwent endovascular treatment of a thoracic aortic aneurysm using gore® dryseal flex introducer sheath.The 22 fr sheath was introduced via the right femoral artery.Using the ribs technique, the stent graft was deployed from the ascending aorta.Subsequent access vessel angiography revealed a dissection of the right external iliac artery.As a treatment, a bare-metal stent was placed.Follow-up angiography demonstrated loss of blood flow to the right internal iliac artery, but no additional treatment was performed, and the procedure was completed.The diameter of the right external iliac artery was approximately 6.8 to 6.9 mm.The access vessel dissection was suspected to have been caused by sheath manipulation.The loss of perfusion to the right internal iliac artery may have resulted from the dissection of the right external iliac artery.

• Brand Name: GORE® DRYSEAL FLEX INTRODUCER SHEATH
• Common Device Name: INTRODUCER, CATHETER
• Manufacturer (Section D): W. L. GORE & ASSOCIATES, INC.; 1505 n. fourth street; flagstaff AZ 86004
• Manufacturer (Section G): MEDICAL PHOENIX 1 B/P; 32360 n. north valley parkway; phoenix AZ 85085
• Manufacturer Contact: rie kaba ; 1505 n. fourth street; flagstaff, AZ 86004 ; 9285263030
• MDR Report Key: 24636373
• Report Number: 3007284313-2026-04633
• Device Sequence Number: 12974887
• Product Code: DYB
• UDI-Device Identifier: 00733132630073
• UDI-Public: (01)00733132630073(17)280914
• Combination Product (Y/N): N
• Initial Reporter Country: JA
• PMA/510(K) Number: K160254
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Foreign,Company Representative
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 03/19/2026

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: DSF2233
• 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: 02/26/2026
• Initial Report FDA Received Date: 03/19/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 10/15/2025
• Is the Device Labeled for Single Use? (Y/N): Yes
• Usage of Device: Initial
• Patient Sequence Number: 1
• Outcome Attributed to Adverse Event: Required Intervention
• Patient Age: 84 YR
• Patient Sex: Female