MAUDE Adverse Event Report: ABBOTT MEDICAL AMPLATZER SEPTAL OCCLUDER; TRANSCATHETER SEPTAL OCCLUDER

Model Number	9-ASD-018
Medical Device Problem Code	Difficult to Fold, Unfold or Collapse (1254)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	03/24/2026
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
Na.The device is not returning for evaluation.Investigation is not yet complete.A follow-up report will be submitted with all additional relevant information.
Event or Problem Description
It was reported that on (b)(6) 2026, a 19mm amplatzer septal occluder was chosen for an atrial septal defect using a 9f amplatzer trevisio intravascular delivery system.During procedure, it was noted that the rims were thin, and balloon sizing showed a maximum measurable diameter of 19¿20 mm.Therefore, a 19mm device was selected initially.During the attempt to implant inside the body, continuous contact with the aorta was observed, and the device was determined to be oversized.Additionally, because the defect morphology was elliptical, it was considered that downsizing the device would not increase the risk of device embolization.There were no bends or kinks been observed in the delivery sheath.The device was therefore changed to a new 18mm amplatzer septal occluder and transesophageal echocardiogram (tee) imaging confirmed that there were no issues following device replacement.The patient remained hemodynamically stable throughout the procedure.There was no clinically significant delay in procedure and no adverse patient effects.The patient was reported stable.

• Brand Name: AMPLATZER SEPTAL OCCLUDER
• Common Device Name: TRANSCATHETER SEPTAL OCCLUDER
• Manufacturer (Section D): ABBOTT MEDICAL; 5050 nathan lane n; plymouth MN 55442
• Manufacturer (Section G): ST. JUDE MEDICAL #3014918977; edificio #44 calle 0, ave. 2; el coyol alajuela 1897- 4050; CS 1897-4050
• Manufacturer Contact: karen krouse ; 5050 nathan lane n; plymouth, MN 55442 ; 6517565400
• MDR Report Key: 24912380
• Report Number: 2135147-2026-02489
• Device Sequence Number: 21142674
• Product Code: MLV
• UDI-Device Identifier: 00811806010151
• UDI-Public: (01)00811806010151(17)300131(10)10706954
• Combination Product (Y/N): N
• Initial Reporter Country: JA
• PMA/510(K) Number: P000039
• 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,Followup
• Report Date (Section B): 05/15/2026

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: 9-ASD-018
• Device Catalogue Number: 9-ASD-018
• Device Lot Number: 10706954
• 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: 03/25/2026
• Supplement Date Received by Manufacturer: 05/09/2026
• Initial Report FDA Received Date: 04/17/2026
• Supplement Report FDA Received Date: 05/15/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 02/03/2025
• 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
• Concomitant Medical Products and Therapy/Usage Dates: 9F AMPLATZER TREVISIO INTRAVASCULAR DELIVERY SYSTE.
• Patient Sex: Unknown