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(b)(4).Method: the complaint ojr416b optiflow junior 2 blender transition kit was received at fisher & paykel healthcare (f&p) new zealand, where it was visually inspected.Our investigation is thus based on the evaluation of the subject device, the information provided by the healthcare facility and our knowledge of the product.Results: visual inspection of the complaint device revealed that the tubing was found torn next to the left swivel grip end, with part of the tubing still attached to the inside of the swivel.It was also observed that part of the tubing was stretched out.Conclusion: our investigation was unable to determine the exact cause of the observed damage to the ojr416b optiflow junior 2 blender transition kit.Based on our knowledge of the product, the damage is most likely caused due to the tubing being inadvertently pulled and subjected to excessive force.All optiflow junior cannula are 100% leak and occlusion tested after final assembly and any cannula that fails is discarded.In addition, samples are 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 subject ojr416b optiflow junior 2 blender transition kit would have met the required specifications at the time of release.The user instructions which accompany the ojr416b optiflow junior 2 blender transition kit show in pictorial format the correct placement and fitting of the cannula, and provide the following warnings: "appropriate patient monitoring (e.G., oxygen saturation) must be used at all times.Failure to monitor the patient may result in loss of therapy, serious harm or death." "ensure all connections are secure during use.Check the cannula is undamaged and that the flow path is maintained.Under excessive load, the cannula may disconnect to prevent forces being transferred to the patient." "do not stretch the cannula on application; this may cause increase pressure to the patient's skin.If necessary, the cannula may be repositioned.".
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