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

Model Number	CD3231-40Q
Medical Device Problem Code	Battery Problem (2885)
Health Effect - Clinical Code	No Known Impact Or Consequence To Patient (2692)
Date of Event	08/21/2019
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
The results of the investigation are inconclusive since the device was not returned for analysis.Based on the information received, the cause of the reported incident could not be conclusively determined.
Event or Problem Description
Following the battery performance alert (bpa) advisory, a bpa was received by the clinician and awaiting explant.Further information was requested, but not yet available.The patient was stable.
Event or Problem Description
New information noted that the implantable cardioverter defibrillator was explanted.No further information was provided.
Additional Manufacturer Narrative
Additional information: premature battery depletion was confirmed by analysis.A device evaluation was performed, and no sources of high current were noted.The cause of the premature battery depletion was consistent with 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-SUNNYVALE); 645 almanor avenue; sunnyvale CA 94085
• MDR Report Key: 8961978
• Report Number: 2938836-2019-13196
• Device Sequence Number: 2576022
• Product Code: NIK
• UDI-Device Identifier: 05414734504393
• UDI-Public: 05414734504393
• Combination Product (Y/N): N
• PMA/510(K) Number: P030054
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2013
• Reporter Type: Manufacturer
• Report Source: company representative,foreig
• Initial Reporter Occupation: Physician
• Remedial Action: Recall
• Type of Report: Initial,Followup,Followup
• Report Date (Section B): 12/09/2019

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: Health Professional
• Device Expiration Date: 05/31/2013
• Device Model Number: CD3231-40Q
• Device Catalogue Number: CD3231-40Q
• Device Lot Number: 3641655
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 09/13/2019
• Was the Report Sent to FDA?: No
• Initial Date Received by Manufacturer: 08/21/2019
• Supplement Date Received by Manufacturer: 11/19/2019; 11/19/2019
• Initial Report FDA Received Date: 09/04/2019
• Supplement Report FDA Received Date: 11/23/2019; 12/09/2019
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• If action reported to FDA under 21 USC 360i(g), list FDA-assigned Recall Number or include a statement: Z-0004-2018; Z-0116-2017
• Patient Sequence Number: 1
• Outcome Attributed to Adverse Event: Required Intervention