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

Model Number	4480
Medical Device Problem Code	High impedance (1291)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	01/15/2026
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
This investigation will be updated should pertinent information become available in the future.
Event or Problem Description
It was reported that this right atrial (ra) lead exhibited high out of range impedance measurements over 3000 ohms.The health care professional (hcp) decided to surgically abandon this lead and implanted a new one.No additional adverse patient effects were reported.

• Brand Name: FINELINE II 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; road 698, lot no. 12; dorado PR 00646 -260; * 00646-2602
• Manufacturer Contact: timothy degroot ; 4100 hamline avenue north; saint paul, MN 55112 ; 6515826168
• MDR Report Key: 24136759
• Report Number: 2124215-2026-03922
• Device Sequence Number: 5430071
• Product Code: DTB
• UDI-Device Identifier: 00802526061974
• UDI-Public: (01)00802526061974(17)161010
• Combination Product (Y/N): Y
• Initial Reporter State: PR
• PMA/510(K) Number: P960004
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2015
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Health Professional
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 01/21/2026

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: 10/10/2016
• Device Model Number: 4480
• Device Catalogue Number: 4480
• Device Lot Number: 642081
• 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: 01/15/2026
• Initial Report FDA Received Date: 01/21/2026
• Date Device Manufactured: 10/10/2014
• 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: Required Intervention; Hospitalization
• Patient Age: 63 YR
• Patient Sex: Male