FDA Adverse Event Malfunction Summary report: N

TELIGEN

MDR report key: 4140010 · Received October 3, 2014

Report

Report Number
2124215-2014-16353
Event Type
Malfunction
Date Received
October 3, 2014
Date of Event
August 11, 2014
Report Date
October 14, 2014
Manufacturer
GUIDANT CRM CLONMEL IRELAND
Product Code
LWS
Removal / Correction Number
Z-0026-2014
Product Problem
Yes
Report Source
Manufacturer report
Reporter Location
CA
Reporter Occupation
MEDICAL EQUIPMENT COMPANY TECHNICIAN/REPRESENTATIVE

Narratives

Additional Manufacturer Narrative · 1

(B)(4). THIS DEVICE WAS THOROUGHLY INSPECTED AND ANALYZED UPON RECEIPT AT OUR QUALITY ASSURANCE LABORATORY. REVIEW OF THE DEVICE MEMORY INDICATED THAT A LOW VOLTAGE ALERT, CODE 1003, WAS RECORDED. 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. 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. BOSTON SCIENTIFIC HAS ISSUED AN ADVISORY COMMUNICATION REGARDING AN OLDER SUBSET OF COGNIS/TELIGEN DEVICES THAT IS MORE SUSCEPTIBLE TO THIS ANOMALY. SPECIFICALLY, THE PERFORMANCE OF A LOW VOLTAGE CAPACITOR MAY BE COMPROMISED OVER TIME, CAUSING AN INCREASED CURRENT DRAIN THAT CAN LEAD TO PREMATURE BATTERY DEPLETION. THIS PARTICULAR DEVICE WAS INCLUDED IN THE ADVISORY POPULATION.

Additional Manufacturer Narrative · 1

(B)(4). RECORDS INDICATE THIS DEVICE REMAINS IN SERVICE. SHOULD ADDITIONAL INFORMATION BECOME AVAILABLE, THIS REPORT WILL BE UPDATED.

Additional Manufacturer Narrative · 1

(B)(4). THE PRODUCT IS EXPECTED TO BE RETURNED FOR ANALYSIS. THIS REPORT WILL BE UPDATED UPON RETURN AND COMPLETION OF ANALYSIS.

Description of Event or Problem · 1

BOSTON SCIENTIFIC RECEIVED INFORMATION THAT THIS DEVICE RECORDED A CODE 1003 INDICATIVE OF BATTERY VOLTAGE TOO LOW FOR THE PROJECTED REMAINING CAPACITY. DATA ANALYSIS SHOWED THE BATTERY APPEARS TO BE DEPLETING MORE QUICKLY THAN EXPECTED. DEVICE REPLACEMENT WAS RECOMMENDED. NO ADVERSE PATIENT EFFECTS WERE REPORTED.

Description of Event or Problem · 1

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

Devices

Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
619632 TELIGEN IMPLANTABLE CARDIOVERTER DEFIBRILLATOR LWS GUIDANT CRM CLONMEL IRELAND E110

Patients

Seq Age Sex Outcome Treatment
1 83 YR 0184| 4135| E110