COGNIS
Report
- Report Number
- 2124215-2013-10152
- Event Type
- Injury
- Date Received
- July 9, 2013
- Date of Event
- April 13, 2013
- Report Date
- June 4, 2013
- Manufacturer
- GUIDANT CRM CLONMEL IRELAND
- Product Code
- LWP
- Removal / Correction Number
- Z-0025-2014
- Adverse Event
- Yes
- Product Problem
- Yes
- Report Source
- Manufacturer report
- Reporter Occupation
- PHYSICIAN
Narratives
(B)(4). 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.
UPON RECEIPT AT OUR QUALITY ASSURANCE LABORATORY, THIS DEVICE WAS THOROUGHLY INSPECTED AND ANALYZED. REVIEW OF THE DEVICE MEMORY CONFIRMED TWO LOW VOLTAGE BATTERY FAULTS (FAULT CODE 1003) HAD BEEN RECORDED. EXTERNAL VISUAL INSPECTION OF THE DEVICE NOTED NO ANOMALIES. INITIAL AUTOMATED TESTING VERIFIED BASIC SENSING, PACING AND SHOCKING FUNCTIONS OF THE DEVICE. AFTER THE TITANIUM CASE WAS OPENED, MICROSCOPIC VISUAL INSPECTION DID NOT REVEAL ANY IRREGULARITIES. THE BATTERY WAS THEN REMOVED, SO THAT AN EXTERNAL POWER SUPPLY COULD BE CONNECTED TO THE DEVICE FOR FURTHER ANALYSIS. A HIGHER THAN NORMAL CURRENT USAGE WAS OBSERVED. ELECTRICAL TESTING ISOLATED THE HIGH CURRENT CONDITION TO TWO COMPROMISED LOW VOLTAGE CAPACITORS THAT ARE CONNECTED TO THE DEVICE¿S BATTERY. THIS TYPE OF COMPONENT MALFUNCTION CAN RESULT IN A HIGH CURRENT DRAIN, WHICH OVER TIME CAN RESULT IN PREMATURE BATTERY DEPLETION, AS WAS OBSERVED IN THIS CASE.
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BOSTON SCIENTIFIC RECEIVED INFORMATION THAT DURING A NORMAL PATIENT FOLLOW UP, THIS IMPLANTABLE CARDIOVERTER DEFIBRILLATOR (ICD) DISPLAYED THE FAULT CODE 1003 AND THE WARNING MESSAGE THAT THE VOLTAGE WAS TOO LOW FOR THE PROJECTED REMAINING CAPACITY. A MEMORY DOWNLOAD WAS PERFORMED AND SENT TO BOSTON SCIENTIFIC FOR FURTHER EVALUATION. NO ADVERSE PATIENT EFFECTS WERE REPORTED. NO ADVERSE PATIENT EFFECTS WERE REPORTED.A BOSTON SCIENTIFIC ENGINEER REVIEWED THE DATA AND CONFIRMED THAT A LOW VOLTAGE FAULT HAD BEEN DECLARED AS A RESULT OF AN ADDITIONAL CURRENT DRAIN ON THE DEVICE¿S BATTERY.THE DEVICE WAS EXPLANTED AND RETURNED TO BOSTON SCIENTIFIC FOR ANALYSIS.
Devices
| Seq | Brand | Generic | Product Code | Manufacturer | Model | Lot | UDI-DI |
|---|---|---|---|---|---|---|---|
| 314226 | COGNIS | IMPLANTABLE CHF PULSE GENERATOR | LWP | GUIDANT CRM CLONMEL IRELAND | N119 |
Patients
| Seq | Age | Sex | Outcome | Treatment |
|---|---|---|---|---|
| 1 | 73 YR | Hospitalization| L| R | 0185| N119| 4542| 4470 |