Zoll has not received the autopulse li-ion battery for investigation.A supplemental report will be filed when the product is returned and the investigation has been completed.The death was not related to the autopulse device.The autopulse is used as an adjunct to manual cpr in cases of clinical death.The benefit of using the autopulse is that it in part substitutes mechanical compressions for the physical labor of manual chest compressions.If the autopulse did not start or unexpectedly stops compressions, rescuer should revert to manual cpr, which is the standard of care.In this case, when the autopulse platform (sn (b)(4)) was used on a patient weighed around (b)(6) lbs., it stopped compressions and displayed error message after performing 30 seconds of compressions.The user attempted to fix the errors, but the issue persisted.The user reverted to manual cpr.Rosc was not achieved and the patient expired.The autopulse was intended to be used as an adjunct to manual cpr on adult patients.In case of stoppage of autopulse the trained user reverts to manual cpr.The transition from autopulse to manual cpr by trained users is similar to the time necessary for rescuer rotation, and presents the same workflow as manual cpr.Hence, based on available information, the patients' outcome was not negatively impacted by the interruptions when compared to standard of care manual cpr.
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During patient use, the autopulse platform (sn (b)(4)) stopped compressions and displayed user advisory (ua) 17 (max motor on time exceeded during active operation) error message after performing 30 seconds of compressions.The patient weighed around 180 lbs.The user power-cycled the platform multiple times, however, the error message could not be cleared.The user reverted to manual cpr.Rosc was not achieved and the patient expired.Per user, the autopulse li-ion battery used during the call was a new battery.Please see the following related mfr report: mfr 3010617000-2019-00849 for the autopulse platform.
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