FDA Adverse Event Malfunction Summary report: N

TELIGEN

MDR report key: 3920017 · Received July 8, 2014

Report

Report Number
2124215-2014-13605
Event Type
Malfunction
Date Received
July 8, 2014
Date of Event
June 12, 2014
Report Date
August 6, 2014
Manufacturer
GUIDANT CRM CLONMEL IRELAND
Product Code
LWP
Removal / Correction Number
Z-0088-2015
Product Problem
Yes
Report Source
Manufacturer report
Reporter Occupation
MEDICAL EQUIPMENT COMPANY TECHNICIAN/REPRESENTATIVE

Narratives

Additional Manufacturer Narrative · 1

(B)(4). AS NO FURTHER INFORMATION CONCERNING THIS REPORT IS EXPECTED, OUR INVESTIGATION IS COMPLETE. THIS INVESTIGATION WILL BE UPDATED SHOULD FURTHER INFORMATION BE PROVIDED.

Additional Manufacturer Narrative · 1

(B)(4). THIS DEVICE WAS THOROUGHLY INSPECTED AND ANALYZED UPON RECEIPT AT OUR QUALITY ASSURANCE LABORATORY. EXTERNAL VISUAL INSPECTION OF THE DEVICE NOTED NO ANOMALIES. THE BATTERY VOLTAGE WAS LOWER THAN EXPECTED, BUT STILL SUPPORTED FULL DEVICE FUNCTION. A SERIES OF AUTOMATED ELECTRICAL/FUNCTIONAL TESTS WERE CONDUCTED AND NO ISSUES WITH THE DEVICE¿S ABILITY TO DELIVER THERAPY WERE OBSERVED; BASIC SENSING, PACING AND SHOCKING FUNCTIONS OF THE DEVICE WERE VERIFIED. REVIEW OF THE DEVICE MEMORY INDICATED THAT A VOLTAGE ALERT WAS RECORDED. USING HISTORICAL DAILY BATTERY VOLTAGE MEASUREMENT DATA, ENGINEERS DETERMINED THAT THIS DEVICE WAS DEMONSTRATING BEHAVIOR CONSISTENT WITH A HIGH CURRENT CONDITION ASSOCIATED WITH A COMPROMISED LOW VOLTAGE CAPACITOR CONNECTED TO THE DEVICE¿S BATTERY. LOW VOLTAGE CAPACITORS ARE USED IN THE DEVICE¿S HIGH VOLTAGE CHARGING OPERATION IN ORDER TO FACILITATE FAST CHARGE TIMES. MALFUNCTION OF THESE CAPACITORS RESULTED IN A HIGH CURRENT DRAIN, WHICH WAS DEPLETING THIS DEVICE¿S BATTERY FASTER THAN NORMAL. ON AUGUST 29, 2013, BOSTON SCIENTIFIC DISTRIBUTED A LETTER TO PHYSICIANS CONCERNING THIS ISSUE. THIS LETTER INFORMED PHYSICIANS THAT, IN A SUBSET OF DEVICES, THE PERFORMANCE OF A LOW VOLTAGE CAPACITOR MAY BE COMPROMISED OVER TIME, CAUSING INCREASED CURRENT DRAIN THAT CAN LEAD TO PREMATURE BATTERY DEPLETION. THIS DEVICE IS A PART OF THE IDENTIFIED POPULATION.

Additional Manufacturer Narrative · 1

(B)(4).

Description of Event or Problem · 1

--

Description of Event or Problem · 1

ADDITIONAL INFORMATION WAS RECEIVED THAT THIS DEVICE WAS EXPLANTED AND REPLACED. NO ADDITIONAL ADVERSE PATIENT EFFECTS WERE REPORTED.

Description of Event or Problem · 1

BOSTON SCIENTIFIC RECEIVED INFORMATION THAT THIS DEVICE WAS RECENTLY EMITTING TONES AND DISPLAYED A LOW VOLTAGE ALERT CODE OF 1003. BOSTON SCIENTIFIC ENGINEERS WERE CONSULTED AND STATED THAT THE CODE 1003 IS DUE TO LOW VOLTAGES BEING DECLARED DUE TO THREE DAILY VOLTAGES BEING BELOW THE THRESHOLD OF 3.025 VOLTS. THE DEVICE HARDWARE IS NOT DETECTING THE LOSS OF BATTERY ENERGY AND NOT REFLECTING THE DEPLETION CONDITIONS, AND THUS, IS INACCURATE WHICH IS THE REASON FOR THE LOW VOLTAGE ALERT. SINCE THIS DEVICE IS MALFUNCTIONING, IT IS RECOMMENDED TO BE REPLACED IMMEDIATELY. THE DEVICE REMAINS IMPLANTED AT THIS TIME. TO DATE, NO ADVERSE PATIENT EFFECTS HAVE BEEN REPORTED.

Devices

Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
397035 TELIGEN IMPLANTABLE CARDIOVERTER DEFIBRILLATOR LWP GUIDANT CRM CLONMEL IRELAND E110

Patients

Seq Age Sex Outcome Treatment
1 47 YR E110| 4136| 0184