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(b)(4).Date sent: 2/4/2025.B3: event year only reported: 2024.D4 batch #: t94v3g.Additional information was requested and the following was obtained: did the generator display any error messages and if so what were they? unrecognized instrument.Did the device pass the pre-test? yes.Had the device been working and then stopped? it seems that yes.Did the patient experience any adverse consequences due to this issue? no.Investigation summary: the product was returned for evaluation.Visual inspection and functional testing were conducted on the returned device.Visual analysis of the returned sample revealed that the device was returned with no apparent damage.It was connected to a generator, evaluated with a test instrument and the hand activation feature was non-functional.However, it worked properly with footswitch assembly.No communication issues were observed at any time during the testing.The instrument was disassembled to perform an internal electrical test that revealed a hand activation open circuit condition at the cable level, affecting the functionality of the handpiece.In addition, the moisture indicator was positive.The handpiece has a number of seals to prevent fluids from entering the housing."positive moisture indicator¿ describes a condition where water enters the handpiece cavity during the steam sterilization process.The primary path of ingress is the distal seal, this may be caused by a reduction of the compressive force on the distal seal.However, no definitive root cause could be drawn.A manufacturing record evaluation was performed for the finished device batch number, and no non-conformances were identified.As part of the quality process, all devices are manufactured, inspected, and released to approved specifications.Although no conclusion could be reach on the cause of the reported event.It is probable that the ingress of moisture affected handpiece functionality.This report is being submitted pursuant to the provisions of 21 cfr, part 803.This report may be based on information which has not been investigated or verified prior to the required reporting date.This report does not reflect a conclusion by ethicon, or its employees that the report constitutes an admission that the product, ethicon, or its employees caused or contributed to the potential event described in this report.If information is obtained that was not available for the initial report, a follow-up report will be filed as appropriate.
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