(b)(4).Method: the two complaint 900mr810 breathing circuits were received at fisher & paykel healthcare in (b)(4).The water traps were visually inspected and tested to see if they could be opened.Results: visual inspection revealed that the valve head and valve container had been fitted very tightly on both water traps.Conclusion: the water traps could be opened but only with some difficulty.The water traps are supplied by an external manufacturer.As part of our inwards good quality control procedure samples from each delivery of water traps are checked to ensure that the product meets all specifications and that the valve works freely and seals when the bowl is removed.Our user instructions that accompany the 900mr810 reusable breathing circuit contain the following warnings: clean circuit prior to use and after each patient use, using approved disinfection methods only.Use of unapproved cleaning methods may damage the circuit and reduce it useable life; inspect circuit before re-use, do not use if the circuit shows sign of deterioration, such as cracks, tears or damage; ensure the complete circuit functions correctly with required ventilator settings, before connecting to a patient.
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