MAUDE Adverse Event Report: BOSTON SCIENTIFIC CORPORATION MOMENTUM? EL ICD DR; Implantable Cardioverter Defibrillator

Model Number	D121
Medical Device Problem Codes	Signal Artifact/Noise (1036); High impedance (1291); Over-Sensing (1438); Inappropriate/Inadequate Shock/Stimulation (1574); High Capture Threshold (3266)
Health Effect - Clinical Code	Shock from Patient Lead(s) (3162)
Date of Event	09/05/2026
Type of Reportable Event	Serious Injury
Event or Problem Description
It was reported that this implantable cardioverter defibrillator (icd) delivered shock therapy for a stable rhythm and exhibited high pacing impedance measurements.The measurements were within range.It was noted the patient would continue to be monitored.No additional adverse patient effects were reported.This icd remains in service.
Additional Manufacturer Narrative
This product investigation is still in progress.This report will be updated when product investigation is complete.

• Brand Name: MOMENTUM? EL ICD DR
• Common Device Name: Implantable Cardioverter Defibrillator
• Manufacturer (Section D): BOSTON SCIENTIFIC CORPORATION; 4100 hamline avenue north; saint paul MN 55112
• Manufacturer (Section G): Boston Scientific Corporation; cashel road; clonmel E91 T 862; EI E91 T862
• Manufacturer Contact: mark mischke ; 4100 hamline avenue north; saint paul, MN 55112 ; +1(612)875-7234
• MDR Report Key: 50882568
• Report Number: 2124215-2026-50871
• Device Sequence Number: 10754525
• Product Code: LWS
• UDI-Device Identifier: 00802526587726
• UDI-Public: (01)00802526587726(17)251116
• Combination Product (Y/N): N
• Initial Reporter State: OR
• Initial Reporter Country: US
• PMA/510(K) Number: P960040
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2024
• Reporter Type: Manufacturer
• Report Source: Health Professional
• Initial Reporter Occupation: Physician
• Type of Report: Initial,Followup
• Report Date (Section B): 09/25/2026

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?: Yes
• Operator of Device: Lay User/Patient
• Device Expiration Date: 11/16/2025
• Device Model Number: D121
• Device Catalogue Number: D121
• Device Lot Number: 244381
• 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: 09/05/2026
• Supplement Date Received by Manufacturer: 09/14/2026
• Initial Report FDA Received Date: 09/24/2026
• Supplement Report FDA Received Date: 09/25/2026
• Date Device Manufactured: 02/06/2024
• 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: Other
• Patient Age: 55 YR
• Patient Sex: Male