Details of complaint: the customer reported that the transmitter was experiencing ecg dropouts.No patient harm or injury was reported.Investigation summary: nihon kohden technical support (nk ts) initiated a warranty exchange for the zm device.With the available information, a root cause cannot be determined.Possible causes for ecg data dropout: fuzzy or inaccurate waveforms (e.G., sawtooth patterns, square waves) and wave artifacts (signal noise, lead placement, lead connection, network interference) may be caused by faulty lead placement or faulty leads.Users should verify that the leads are authorized for use with the zm transmitter in operation before monitoring a patient.Improper connection of leads (leads not properly seated), and/or damaged or contaminated leads (dirt, dust and/or cleaning residues) may contribute to ecg issues.If the leads are not seated properly to the zm transmitter, readings will not appear properly.The customer also believed the ecg board might have been overheating, but no additional information was received, and this issue could not be confirmed.
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