MAUDE Adverse Event Report: Medtronic Europe Sarl Cobalt¿ HF CRT-D MRI SureScan¿; DEFIBRILLATOR, AUTOMATIC IMPLANTABLE CARDIOVERTER, WITH CARDIAC RESYNCHRONIZATIO

Model Number	DTPB2D4
Medical Device Problem Code	Pacing Problem (1439)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	08/08/2026
Type of Reportable Event	Malfunction
Event or Problem Description
It was reported that the right atrial (ra) lead exhibited far field r-wave (ffrw) oversensing triggering false atrial tachycardia/atrial fibrillation (at/af) detections.The cardiac resynchronization therapy defibrillator (crt-d) also exhibited functional undersensing due to the refractory/blanking period on the atrial channel resulting in overpacing.The lead remains in use.No patient complications have been reported as a result of this event.
Additional Manufacturer Narrative
Continuation of d10: fr995-29 tissue valve implanted (b)(6) 2011 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.

• Brand Name: Cobalt¿ HF CRT-D MRI SureScan¿
• Common Device Name: DEFIBRILLATOR, AUTOMATIC IMPLANTABLE CARDIOVERTER, WITH CARDIAC RESYNCHRONIZATIO
• Manufacturer (Section D): Medtronic Europe Sarl; route du molliau 31; case postale; tolochenaz vaud 1131 ; SZ 1131
• Manufacturer (Section G): Medtronic Europe Sarl; route du molliau 31; case postale; tolochenaz vaud 1131 ; SZ 1131
• Manufacturer Contact: gerard torenvliet ; 8200 coral sea st ne; mounds view, MN 55112--439 ; +1(763)526-9277
• MDR Report Key: 50607017
• Report Number: 9614453-2026-03578
• Device Sequence Number: 16102139
• Product Code: NIK
• UDI-Device Identifier: 00763000178215
• UDI-Public: (01)00763000178215(17)241228(20)02
• Combination Product (Y/N): N
• Initial Reporter State: UT
• Initial Reporter Country: US
• PMA/510(K) Number: P010031
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2024
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Health Professional
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial
• Report Date (Section B): 09/04/2026

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: 12/28/2024
• Device Model Number: DTPB2D4
• Device Catalogue Number: DTPB2D4
• 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
• Initial Report FDA Received Date: 09/04/2026
• Date Device Manufactured: 07/03/2023
• 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: 429688 LEAD, 6947M62 LEAD, 407652 LEAD
• Patient Age: 55 YR
• Patient Sex: Male
• Patient Weight: 249 LB