| Model Number |
E051 |
| Medical Device Problem Codes |
Premature Discharge of Battery (1057); Device Displays Incorrect Message (2591); Noise, Audible (3273)
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| Health Effect - Clinical Codes |
No Known Impact Or Consequence To Patient (2692); No Code Available (3191)
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| Date of Event |
11/27/2019
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Type of Reportable Event
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Serious Injury
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Event or Problem Description
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It was reported that this implantable pulse generator emitted beeping tones and an alert for voltage too low for projected remaining capacity.A replacement surgery will be scheduled.No additional adverse patient effects were reported.
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Event or Problem Description
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It was reported that this implantable pulse generator emitted beeping tones and an alert for voltage too low for projected remaining capacity.This device was explanted at a surgical intervention.No additional adverse patient effects were reported.
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Additional Manufacturer Narrative
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Patient code 3191 captures the reportable event stating that the patient was sent to surgery.The returned implantable pulse generator was analyzed and a review of the device memory confirmed that a low voltage alert, code 1003, was recorded.The battery voltage was lower than expected, but still supported full device function.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 not included in the advisory population.
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Search Alerts/Recalls
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