(b)(4).Product background: the opt970 optiflow + tracheostomy direct connection is a patient interface used for delivery of humidified respiratory gases directly into the patient's tracheostomy.The interface is held in place by a lanyard which is placed around the patient's neck or attached to the patient's clothing or bedding to remove the load of the breathing circuit from the patient's tracheostomy.A tubing clip is also provided to support the weight of the circuit and prevent the tubing from being dislodged.Optiflow + interfaces are designed for use with the airvo series humidifiers and are also compatible with the fisher & paykel healthcare (f&p) mr850 and 950 humidification system devices.Optiflow + interfaces are intended for use with spontaneously breathing patients who would benefit from receiving high flow warmed and humidified respiratory gases.Optiflow + interfaces are not intended for life support and appropriate patient monitoring must be used at all times.Method: the complaint opt970 optiflow + tracheostomy direct connection was received at f&p in new zealand for investigation, where it was visually inspected.Our investigation is based on our evaluation of the subject device, information provided by the healthcare facility, previous investigations of similar complaints, and our knowledge of the product.Results: visual inspection of the opt970 optiflow + tracheostomy direct connection revealed that the tubing was damaged near the three-way connector.The film of the tubing was wrinkled and torn which indicates the damage was consistent with an external force being applied to the tubing.There was no patient involvement as the issue was found whilst the device was not in use on a patient.Conclusion: our investigation was unable to determine the cause of the observed damage to the opt970 optiflow + tracheostomy direct connection.Based on our knowledge of the product the tubing was likely subjected to excessive force near the three-way connector before patient use.F&p's manufacturing controls for the optiflow + tubing include inspections during production for visual defects including cracks, tears, moulding defects, contamination, inclusions, discoloration and stretching or deformation.The subject opt970 optiflow + tracheostomy direct connection would have met the required specifications.The user instructions which accompany the opt970 optiflow + tracheostomy direct connection show in pictorial format the correct placement and fitting of the connection, including ensuring the lanyard and tubing clip are appropriately attached.The user instructions also state: - "attach breathing tube clip to a secure location (e.G., clothing or bedding) to support the interface." - "appropriate patient monitoring must be used at all times.Failure to monitor the patient may result in loss of therapy, serious injury or death." - "do not crush or stretch tube, to prevent loss of therapy." - "the lanyard is designed to minimize loading and movement of the tracheostomy tube.Secure the lanyard properly to avoid accidental decannulation or airway damage." - "failure to use the set-up described above can compromise performance and affect patient safety.".
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