Ps299579 method: the complaint opt942 interface was received at fisher & paykel healthcare in new zealand for evaluation.A visual inspection of the opt942 cannula was performed.Results: visual inspection revealed no damage to any part of the returned nasal cannula.Conclusion: we were unable to determine what may have caused the reported leak as no fault was found with the returned device.All optiflow interfaces are inspected during production for visual defects including cracks, tears, inclusions, discolouration and stretching or deformation.Any product that fails the visual inspection is disposed of.From the information provided by the customer, it is possible that one side of the nasal prongs became partly detached from the manifold.If the prongs are only partially detached, it is likely that they can be moved back into position due to movement (e.G.During transport).The user instructions that accompany the opt942 interface show the correct placement of the nasal prongs on the manifold, as well as the correct use of the white headstrap clip and the blue clothing clip.In addition, the user instructions also contain the following warnings/cautions: "- do not crush or stretch tube, to prevent loss of therapy." "- failure to use the set-up described above can compromise performance and affect patient safety.".
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