MAUDE Adverse Event Report: BOSTON SCIENTIFIC CORPORATION RELIANCE 4-FRONT?; Implantable Lead

Model Number	0663
Medical Device Problem Codes	High impedance (1291); High Capture Threshold (3266)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	06/15/2026
Type of Reportable Event	Malfunction

• Brand Name: RELIANCE 4-FRONT?
• 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; PR 00646-2602
• Manufacturer Contact: mark mischke ; 4100 hamline avenue north; saint paul, MN 55112 ; +1(612)875-7234
• MDR Report Key: 50360108
• Report Number: 2124215-2026-45065
• Device Sequence Number: 6039338
• Product Code: NVY
• UDI-Device Identifier: 00802526592805
• UDI-Public: (01)00802526592805(17)240705
• Combination Product (Y/N): Y
• Initial Reporter State: CA
• Initial Reporter Country: US
• PMA/510(K) Number: P910073
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2023
• Reporter Type: Manufacturer
• Report Source: Health Professional
• Initial Reporter Occupation: Other Health Care Professional
• Remedial Action: Notification
• Type of Report: Initial,Followup
• Report Date (Section B): 09/30/2026

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: Lay User/Patient
• Device Expiration Date: 07/05/2024
• Device Model Number: 0663
• Device Catalogue Number: 0663
• Device Lot Number: 175983
• 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: Not provided
• Supplement Date Received by Manufacturer: 09/29/2026
• Initial Report FDA Received Date: 08/20/2026
• Supplement Report FDA Received Date: 09/30/2026
• Date Device Manufactured: 07/05/2022
• 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
• Patient Age: 75 YR
• Patient Sex: Male