MAUDE Adverse Event Report: MEDTRONIC, INC. UNIPOLAR, EPICARDIAL, OVAL PATCH LEAD, DF1; IMPLANTABLE CARDIOVERTER DEFIBRILLATOR (NON-CRT)

Model Number	6721M-50
Medical Device Problem Codes	Break (1069); Over-Sensing (1438)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	04/27/2021
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
Concomitant medical products: 4968-25, lead, implanted: (b)(6) 2007; ddmb1d1, icd, implanted: (b)(6) 2021.If information is provided in the future, a supplemental report will be issued.
Event or Problem Description
It was reported that during a procedure the surgeon noted the high voltage right ventricular (rv) lead had a large insulation abrasion.The high voltage rv lead was capped and replaced.No patient complications have been reported as a result of this event.
Additional Manufacturer Narrative
Medtronic submits this report to comply with fda regulations 21 cfr parts 4 and 803.Medtronic has made reasonable efforts to provide as much relevant information as is available to the company as of the submission date of this report.This report does not constitute an admission or a conclusion by fda, medtronic, or its employees that the device, medtronic, or its employee caused or contributed to the event described in the report.Any required fields that are unpopulated are blank because the information is currently unknown or unavailable.Medtronic will submit a supplemental report if additional relevant information becomes known.
Event or Problem Description
It was further reported that there were multiple lead integrity alerts (lia) for elevated high rate non-sustained episodes and sensing integrity counter (sic).

• Brand Name: UNIPOLAR, EPICARDIAL, OVAL PATCH LEAD, DF1
• Common Device Name: IMPLANTABLE CARDIOVERTER DEFIBRILLATOR (NON-CRT)
• Manufacturer (Section D): MEDTRONIC, INC.; 8200 coral sea street ne; mounds view MN 55112
• Manufacturer (Section G): MEDTRONIC, INC.; 8200 coral sea street ne; mounds view MN 55112
• Manufacturer Contact: gerard torenvliet ; 8200 coral sea st ne; mounds view, MN 55112-4391 ; 7635269277
• MDR Report Key: 11938530
• Report Number: 2182208-2021-02286
• Device Sequence Number: 4316153
• Product Code: LWS
• UDI-Device Identifier: 00681490148771
• UDI-Public: 00681490148771
• Combination Product (Y/N): N
• Initial Reporter State: AZ
• Initial Reporter Country: US
• PMA/510(K) Number: P900061
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2013
• Device Explanted Year: 2021
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Health Professional,Company Representative
• Initial Reporter Occupation: Physician
• Type of Report: Initial,Followup
• Report Date (Section B): 12/08/2025

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: 01/14/2015
• Device Model Number: 6721M-50
• Device Catalogue Number: 6721M-50
• 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: 05/18/2021
• Supplement Date Received by Manufacturer: 11/19/2025
• Initial Report FDA Received Date: 06/04/2021
• Supplement Report FDA Received Date: 12/09/2025
• Date Device Manufactured: 02/13/2013
• 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: 4968-25 LEAD; 4968-25 LEAD
• Outcome Attributed to Adverse Event: Hospitalization; Required Intervention
• Patient Age: 17 YR
• Patient Sex: Male