(b)(4).Batch # r94u5f.Investigation summary: the device was received with no apparent damage.It was connected to a generator, evaluated with a test instrument and was found to be functional.The instrument was disassembled to inspect the internal components.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.It is probable that the ingress of moisture affected handpiece functionality.The manufacturing records were reviewed and the manufacturing/packaging criteria were met prior to the release of this batch.
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It was reported that during an unknown procedure, the harh45 did not work.They verified the hand piece and it still had uses available.When they change the energy device to another harh45, that one worked fine, but the first one gave an error on the gen11.No patient consequence.
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