The customer returned three sets of pro padz to zoll medical corporation for evaluation.One set was opened and used during the patient event, one was open and unused, and one was unopened.The open and used set of pro padz passed continuity testing.During visual inspection the technician noted there is a clear sign of an air pocket/bubble that was trapped between the pads and patient?s skin, leading to poor coupling during therapy.Hair and skin cells were also observed during inspection which can contribute to sparking, arcing, and burns.The customer also stated the event occurred in an oxygen-rich environment which can also contribute to the customer?s observations.Electrode labeling provides instructions for proper electrode application techniques.Poor coupling due air trapped under the electrodes has the potential to cause arcing and skin burns.Proper skin preparation and application techniques do not guarantee burns will not occur and burns from defibrillation are a known potential risk.The pads were scrapped after testing and the customer was sent replacement pads.Analysis of reports of this type has not identified an increase in trend.
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