MAUDE Adverse Event Report: Medtronic Puerto Rico Villalba Sprint Quattro Secure S MRI SureScan; IMPLANTABLE CARDIOVERTER DEFIBRILLATOR (NON-CRT)

Model Number	6935M55
Medical Device Problem Codes	Over-Sensing (1438); Low impedance (2285); Unstable Impedance (4085)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	07/20/2026
Type of Reportable Event	Malfunction
Event or Problem Description
It was further reported that the rv lead was reprogrammed and remains in use.
Additional Manufacturer Narrative
Product event summary: the lead was not returned for analysis, however, performance data collected from the device was received and analyzed.Analysis of the device memory indicated the impedance of the right ventricular pacing lead was below the expected lower range.Analysis of the device memory indicated the criteria for the right ventricular lead integrity alert were met.Analysis of the device memory indicated the impedance trend of the right ventricular pacing lead was variable.Analysis of the device memory indicated oversensing due to non-physiologic signals/sensing integrity counter.Analysis of the device memory indicated oversensing associated with the right ventricular lead.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: Sprint Quattro Secure S MRI SureScan
• Common Device Name: IMPLANTABLE CARDIOVERTER DEFIBRILLATOR (NON-CRT)
• Manufacturer (Section D): Medtronic Puerto Rico Villalba; road 149 km 56.3; villalba PR 00766
• Manufacturer (Section G): Medtronic Puerto Rico Villalba; road 149 km 56.3; villalba PR 00766
• Manufacturer Contact: gerard torenvliet ; 8200 coral sea st ne; mounds view, MN 55112--439 ; +1(763)526-9277
• MDR Report Key: 50306975
• Report Number: 2649622-2026-24368
• Device Sequence Number: 13437058
• Product Code: LWS
• UDI-Device Identifier: 00613994718839
• UDI-Public: (01)00613994718839(17)150728
• Combination Product (Y/N): N
• Initial Reporter State: WV
• Initial Reporter Country: US
• PMA/510(K) Number: P920015
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2013
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Company Representative
• Initial Reporter Occupation: Non-Healthcare Professional
• Type of Report: Initial,Followup
• Report Date (Section B): 09/03/2026

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: 07/28/2015
• Device Model Number: 6935M55
• Device Catalogue Number: 6935M55
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 07/20/2026
• Supplement Date Received by Manufacturer: Not provided
• Initial Report FDA Received Date: 08/18/2026
• Supplement Report FDA Received Date: 09/03/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 08/08/2013
• 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
• Outcome Attributed to Adverse Event: Required Intervention
• Patient Age: 73 YR
• Patient Sex: Male