It was reported that the procedure was performed to treat a lesion in the pulmonary artery.After two inflations at 6 atmospheres, the balloon only partially deflated.During retrieval, resistance was met with the anatomy.Force was applied and the device separated at the proximal end of the balloon.The distal portion was retrieved with biopsy forceps.There was a 40-minute delay in the procedure.There was no adverse patient sequela reported.No additional information was provided.
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Visual inspection was performed on the returned device.The reported separation was confirmed.The reported deflation issue could not be replicated in a testing environment due to the condition of the returned device.The reported difficulty removing the device could not be replicated in a testing environment as it was based on operational circumstances.It should be noted that the coronary dilatation catheters (cdc), trek rx and mini trek rx, global, instruction for use (ifu), states: if resistance is felt, determine the cause before proceeding.The ifu also states: the trek rx coronary dilatation catheters are indicated for: balloon dilatation of the stenotic portion of a coronary artery or bypass graft stenosis, for the purpose of improving myocardial perfusion, balloon dilatation of a coronary artery occlusion, for the purpose of restoring coronary flow in patients with st-segment elevation myocardial infarction, balloon dilatation of a stent after implantation.It is unknown if the reported ifu violation caused or contributed to the reported complaint.A review of the lot history record identified no manufacturing nonconformities issued to the reported lot that would have contributed to this event.Additionally, a review of the complaint history identified no other similar incidents and/or complaints from this lot.The investigation was unable to determine a conclusive cause for the reported deflation issue.The reported separation appears to be related to operational context/ user error.There is no indication of a product quality issue with respects to the design, manufacture, or labeling of the device.
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