(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 to maintain cannula stability on the patient's cheeks, soft-touch nasal prongs and breathable kink-proof and crush-resistant flexible tubing.The optiflow junior provides a revolutionary step between low-flow oxygen therapy and cpap.Method: the complaint op316 cannula was received at fisher & paykel healthcare (b)(4).The cannula was visually inspected and immersed in a water bath to test for leak.Results: visual inspection revealed that the right flexitube (cannula tubing) was damaged where it connects to the swivel grip.The right tube appeared to be stretched and the springs inside the tube were distorted.There were four pin-sized holes present in the plastic covering on the right tube where the tube was stretched.During the water bath test bubbles formed at the section of the tubing where it appeared to have been stretched.A lot check revealed no other complaints for the lot number provided.Conclusion: the damage to the flexitube was most likely caused by an excessive pulling force.A cannula with this type of damage would not have passed our visual inspection, nor would it have passed our pressure test.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 on hold for 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: 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.Do not stretch or crush tube.
|