(b)(4).The customer reported that "the nebulizer tubing jumps off at oxygen point." the customer returned one kit of catalog number 41894 nebulizer w/ped mask & tbg, small volume for analysis.During the visual inspection, it was observed that the tubing was bent at the bottom near the reduce hose nose.Visual inspection of the returned sample could not confirm the defect; therefore, a functional inspection was performed to determine if the tubing pops off the nebulizer during functional inspection.The returned tubing was used to connect the nebulizer unit to the air flowmeter.Per tp-0183 rev 14, functional testing indicated that mist was produced from the chamber of the nebulizer and that the tubing did not pop off after nebulizing.Therefore, based on the functional inspection, the customer complaint could not be confirmed.The device history record of batch number 74f1800398 that belong to catalog number 41894 has been reviewed and no issues or discrepancies were found which could potentially be related to this complaint.No non-conformance reports were originated for the lot in question that can be associated to the complaint reported.Dhr shows that the product was assembled & inspected according to our specifications.The reported complaint that the tubing pops off at oxygen point was not confirmed during functional inspection.During the functional inspection, the tubing did not pop off at the oxygen point.The device history record of batch number 74f1800398 that belong to catalog number 41894 has been reviewed and no issues or discrepancies were found which could potentially be related to this complaint.No functional issues were found with the returned complaint sample.
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