MAUDE Adverse Event Report: ST. JUDE MEDICAL, INC.(CRM-SYLMAR) UNIFY CRT-D; IMPLANTABLE CARDIOVERTER DEFIBRILLATOR

Model Number	CD3231-40
Medical Device Problem Code	Defective Device (2588)
Health Effect - Clinical Code	Insufficient Information (4580)
Date of Event	01/25/2023
Type of Reportable Event	Malfunction
Event or Problem Description
This report is to advise of an event observed during analysis.
Additional Manufacturer Narrative
No complaint was received with the return of the device.Failure event observed during analysis.Final analysis found premature battery depletion.No sources of high current were noted.The cause of the premature battery depletion was consistent with lithium (li) cluster formation.From these analyses, in the absence of high current draw, it is probable that the premature battery depletion was caused by a lithium cluster induced short circuit.Li clusters are a known depletion mechanism for these advisory products that has been investigated and associated with a field action in october 2016.

• Brand Name: UNIFY CRT-D
• Common Device Name: IMPLANTABLE CARDIOVERTER DEFIBRILLATOR
• Manufacturer (Section D): ST. JUDE MEDICAL, INC.(CRM-SYLMAR); 15900 valley view court; sylmar CA 91342
• Manufacturer (Section G): ST. JUDE MEDICAL, INC.(CRM-SYLMAR); 15900 valley view court; sylmar CA 91342
• Manufacturer Contact: richard williamson ; 15900 valley view court; sylmar, CA 91342
• MDR Report Key: 16251198
• Report Number: 2017865-2023-04312
• Device Sequence Number: 5350544
• Product Code: NIK
• UDI-Device Identifier: 05414734504362
• UDI-Public: 05414734504362
• Combination Product (Y/N): N
• Initial Reporter Country: US
• PMA/510(K) Number: P030054
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2011
• Device Explanted Year: 2014
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Other
• Initial Reporter Occupation: Non-Healthcare Professional
• Remedial Action: Recall
• Type of Report: Initial
• Report Date (Section B): 01/26/2023

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: Other
• Device Expiration Date: 05/31/2012
• Device Model Number: CD3231-40
• Device Catalogue Number: CD3231-40
• Device Lot Number: 3264871
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 01/11/2023
• Was the Report Sent to FDA?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 01/25/2023
• Initial Report FDA Received Date: 01/26/2023
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 11/16/2010
• 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
• If action reported to FDA under 21 USC 360i(g), list FDA-assigned Recall Number or include a statement: Z-0116-2017
• Patient Sequence Number: 1
• Patient Sex: Unknown