A physician reported that during a cataract surgery in an ophthalmic console the intra ocular pressure was unstable (iop) also a vitreous prolapsed happened following an extracapsular cataract extraction (ecce).Surgeon has also noticed an unstable anterior chamber even after switching the treatment to anterior vitrectomy (a-vit).Due to the instability in the iop control in system surgeon has changed the system and the surgery was completed after converting the procedure to pars plana vitrectomy (ppv).Additional information received clarified that cataract surgery was started with ultrasound (u/s) phacoemulsification and aspiration, both perfusion and aspiration were defective from the beginning and a procedure pack failure was also suspected.The procedure was changed to ecce due to the hard nucleus and weak zinn's membrane.A-vit was performed due to a rupture of sac in the process.During the a-vit procedure unstable anterior chamber happened due to poor irrigation and the surgery was completed after changing the system.After the postoperative period, the patient was in good condition.
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The customer did not retain the product lot information for this consumable procedure pack, therefore the device history records traceable to the reported procedure pack could not be reviewed.No sample has been returned for evaluation; therefore, the condition of the product could not be verified.Visual inspection or functional testing could not be conducted in order to ascertain the failure mode for the consumable device.The root cause of the customer's complaint could not be established as a sample has not been received and the condition of the product could not be verified.Without analysis of the sample, it is not possible to isolate the root cause.As the root cause is unknown, the relationship, if any, of the device to the reported incident cannot be determined.The root cause for this complaint is not known, therefore, specific action with regards to this complaint cannot be taken.Based on our current tracking, there are no adverse trends for this reported complaint.Quality assurance has reviewed this complaint and will continue to monitor data for evidence of adverse trending and take further action, as appropriate.Consumables manufacturing management has been made aware of this complaint through the consumer affairs review meeting.The manufacturer internal reference number is: (b)(4).
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