(b)(4).Method: the actual complaint 900mr810 adult heated wall reusable breathing circuit was not returned to fisher & paykel healthcare (fph) for inspection.A sealed 900mr810 adult heated wall reusable breathing circuit kit, with lot number 130410, was returned to fph instead.The returned 900mr810 reusable breathing circuit was visually inspected and pressure tested for leaks by immersing in a water bath.Results: no physical damage was observed to the returned 900mr810 reusable breathing circuit.No air leak was observed when the tubes were immersed in the water bath.A lot check revealed no other complaints of this nature for lot number 130410.Conclusion: no fault was found to the returned 900mr810 reusable breathing circuit.All 900mr810 adult heated wall reusable breathing circuits are visually inspected and pressure tested for leaks before releasing for distribution.Any breathing circuit which fails any of these tests is discarded.The leak reported by the hospital was not replicated during inspection.We are therefore unable to determine what may have caused the reported problem.The user instructions of the adult heated wall reusable breathing circuit state the following: "inspect circuit before re-use, do not use if the circuit shows signs of deterioration, such as: cracks, tears, or damage." "perform a pressure and leak test on the breathing system, and check for occlusions, before connecting to a patient." "disconnect tube by handling end connectors only, do not pull or twist tubing, as this may cause damage.".
|