(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.A dhr (device history record) review could not be conducted since the lot number was not provided.A corrective action cannot be applied since it is not possible to identify the defect reported and to investigate its root cause, in order to perform a proper investigation it is necessary to evaluate the sample involved in the incident.Customer complaint cannot be confirmed due to the lack of product sample to perform a proper investigation and determine the root cause.An attempt to duplicate the failure mode was made, but at the time there is no inventory of the involved product code available at the facility and it is not being manufactured at the time.If the physical sample becomes available this complaint will be reopened.Note: a discussion with r & d engineer was conducted regarding the pressure relief valve.Per r & d, the flow rate for this set-up can be 1 to 8 lpm (ifu).The pressure relief valve is intended to activate above 8lpm in a patent set-up.Otherwise, if the set-up becomes kinked or obstructed the pressure would build up (above 8lpm) and would then activate the pressure valve.The water bottle may swell (at 1-8 lpm) without issue.From the complaint description, the pressure valve would not activate at 5-7lpm.
|