MAUDE Adverse Event Report: BOSTON SCIENTIFIC CORPORATION FINELINE II EZ STEROX; IMPLANTABLE LEAD

Model Number	4473
Medical Device Problem Codes	Failure to Capture (1081); Pacing Problem (1439)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	08/26/2025
Type of Reportable Event	Serious Injury
Event or Problem Description
It was reported that during a generator change out procedure, this right ventricular (rv) lead was explanted due to loss of capture.It was noted that there was no pacing at maximum outputs.The procedure was successfully completed with another lead.This rv lead has not been returned for analysis and there were no additional adverse patient effects reported.

• Brand Name: FINELINE II EZ STEROX
• Common Device Name: IMPLANTABLE LEAD
• Manufacturer (Section D): BOSTON SCIENTIFIC CORPORATION; 4100 hamline avenue north; saint paul MN 55112
• Manufacturer (Section G): BOSTON SCIENTIFIC CORPORATION; 4100 hamline avenue north; saint paul MN 55112 5798
• Manufacturer Contact: timothy degroot ; 4100 hamline avenue north; saint paul, MN 55112 ; 6515826168
• MDR Report Key: 22972775
• Report Number: 2124215-2025-62321
• Device Sequence Number: 15738663
• Product Code: DTB
• UDI-Device Identifier: 00802526265020
• UDI-Public: (01)00802526265020(17)110330
• Combination Product (Y/N): Y
• Initial Reporter State: NC
• Initial Reporter Country: US
• PMA/510(K) Number: P960004
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2011
• Device Explanted Year: 2025
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Company Representative
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 09/04/2025

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?: Yes
• Operator of Device: Lay User/Patient
• Device Expiration Date: 03/30/2011
• Device Model Number: 4473
• Device Catalogue Number: 4473
• Device Lot Number: 466800
• 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: 08/26/2025
• Initial Report FDA Received Date: 09/04/2025
• Date Device Manufactured: 03/30/2009
• 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; Required Intervention
• Patient Age: 76 YR
• Patient Sex: Female