COGNIS
Report
- Report Number
- 2124215-2014-16891
- Event Type
- Injury
- Date Received
- October 3, 2014
- Date of Event
- September 2, 2014
- Report Date
- November 14, 2014
- Manufacturer
- GUIDANT CRM CLONMEL IRELAND
- Product Code
- LWP
- Removal / Correction Number
- Z-0087-2015
- Adverse Event
- Yes
- Product Problem
- Yes
- Report Source
- Manufacturer report
- Reporter Occupation
- OTHER
Narratives
(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 ON THE DATE OF EXPLANT. 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 DEVICE PERFORMANCE 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.
(B)(4). THE DEVICE REMAINS IN SERVICE AT THIS TIME. THIS REPORT WILL UPDATED UPON RECEIPT OF ADDITIONAL INFORMATION.
(B)(4). UPON RETURN, THE DEVICE WILL UNDERGO DETAILED ANALYSIS TO DETERMINE ROOT CAUSE.
THE PATIENT WAS PRESENTED BACK TO THE ELECTROPHYSIOLOGY (EP) LABORATORY. THE DEVICE WAS EXPLANTED AND REPLACED WITHOUT INCIDENT.
AS PART OF AN ANALYSIS TO REVIEW THE SAFETY ARCHITECTURE LOW VOLTAGE ALERT (CODE 1003), BATTERY VOLTAGE DATA WAS PULLED FROM THE REMOTE PATIENT MONITORING SYSTEM. DURING OUR ANALYSIS, THE DEVICE WAS IDENTIFIED AS DEMONSTRATING EVIDENCE OF PREMATURE BATTERY DEPLETION THAT COULD POTENTIALLY LEAD TO COMPROMISED THERAPY IF NOT ADDRESSED IN A TIMELY MANNER. BOSTON SCIENTIFIC TECHNICAL SERVICES PROACTIVELY REACHED OUT TO THE FIELD REPRESENTATIVE TO NOTIFY THEM OF THIS FINDING AND RECOMMEND DEVICE REPLACEMENT. AT THIS TIME, THE DEVICE REMAINS IMPLANTED AND NO ADVERSE PATIENT EFFECTS WERE REPORTED.
THIS DEVICE IS INCLUDED IN THE LV CAPACITOR 2014 COGNIS ADVISORY POPULATION. BOSTON SCIENTIFIC RECEIVED INFORMATION THAT THIS DEVICE WAS ENROUTE FOR LABORATORY TESTING. THE DEVICE WAS RECEIVED AT BOSTON SCIENTIFIC'S RETURN PRODUCTS DEPARTMENT.
Devices
| Seq | Brand | Generic | Product Code | Manufacturer | Model | Lot | UDI-DI |
|---|---|---|---|---|---|---|---|
| 620591 | COGNIS | IMPLANTABLE CHF PULSE GENERATOR | LWP | GUIDANT CRM CLONMEL IRELAND | N119 |
Patients
| Seq | Age | Sex | Outcome | Treatment |
|---|---|---|---|---|
| 1 | 78 YR | Hospitalization| L| R | 4136| 0185| 4543| N119 |