(b)(4).The optiflow junior cannula is designed specifically for the delicate anatomical features and flow requirements of neonatal and paediatric patients.It features adhesive pads (wigglepads) to maintain cannula stability on the patient's cheeks, soft-touch nasal prongs and breathable kink-proof and crush-resistant flexible tubing.Method: the complaint opt318 cannula was not received for evaluation.Our analysis is based on photographic investigation of the complaint device and the returned opt318 devices from the same batch that was sold to the customer.Results: the photographs of the complaint device did show some split between the nasal prongs.The other returned devices from the same stock were not all split or damaged.Conclusion: we were unable to determine the root cause of the reported fault as we did not receive the complaint device.All optiflow junior cannulae are 100% leak and occlusion tested after final assembly and any cannula that fails is discarded.In addition, samples are currently taken hourly from each run and pull tested to check glue joint strength at the cannula/tube joint, as well as the swivel grip joint.If there are any failures the entire batch is put aside for further investigation.The user instructions illustrate in pictorial format the correct set-up and proper use of the optiflow junior nasal cannula.They also state the following: do not stretch or crush tube.Ensure that all connections are secure during use.Check cannula is undamaged and that the flow path is maintained.Appropriate monitoring must be used at all times.
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