(b)(4).A visual, functional and dimensional inspection of the product involved in the complaint could not be conducted since the product was not returned.No functional inspection can be performed since the device sample is not available for evaluation.However, as an additional test, production samples of subassembly p/n 12153 that were taken randomly from adaptors assembly line were assembled onto a concha mini sterile water bottle.These components are part of product (b)(4) batch 74l1501326.The component p/n 10842 nebulizer base, 028 is part of the product (b)(4) and the product 031-28 and it is related to this customer complaint.During the assembly, the component p/n 10842 was screwed correctly onto a concha mini sterile water bottle.No other issues or discrepancies were found than can lead to the condition reported by the customer.A device history record review could not be conducted since the lot number was not provided.No conclusion can be established at this time based on the lack of device sample.If the device sample becomes available this complaint will be reopened.Customer complaint cannot be confirmed due to the lack of device sample to perform a proper investigation and determine the root cause.
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