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It was reported that the procedure was to treat a mildly tortuous right renal artery.The 5.0x15mm trek balloon dilatation catheter was noted to slowly deflate and only partially deflate after inflation.During removal force was applied in attempt to remove the balloon however, could not be removed independently and resistance was felt with anatomy.The tip separated and was safely pulled into the guide catheter.The guide catheter, balloon and guide wire were removed as one unit.Another device was used to successfully complete the procedure.There was no adverse patient effects reported and no clinically significant delay 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 to remove could not be replicated in a testing environment as it was based on operational circumstances.Production record and corrective and preventative actions (capa) reviews were performed and revealed no indication of a product quality issue.Additionally, a query of the complaint handling database for the reported lot revealed there is no indication of a lot specific issue.It was reported that force had to be applied to remove the bdc as the balloon experienced deflation issues.It should be noted that the coronary dilatation catheters (cdc), trek rx and mini trek rx, global, instruction for use (ifu), if resistance is felt, determine the cause before proceeding.Continuing to advance or retract the catheter while under resistance may result in damage to the vessels and / or damage / separation of the catheter.In this case, it is likely that the ifu violation contributed to the reported separation.Additionally, it was reported that the procedure was to treat a right renal artery.It should be noted that the cdc, trek rx and mini trek rx, global, ifu 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.In this case, it is unknown if the ifu violation contributed to the reported compliant.Based on the reported information and the observations from the returned analysis, a definitive cause for the reported deflation issue could not be determined; however, the reported difficulty removing the device and separation appear to be related to operational context.Possible factors that may contribute to difficulty deflating the balloon include, but are not limited to, deflation technique, tortuous anatomy, loose connection with the indeflator, contamination in the inflation lumen or damage to the guide wire and/or inflation lumen.A conclusive cause for the reported deflation issues cannot be determined.Additionally, it is likely that since the balloon was difficulty to deflate, the partially inflated balloon interacted with the patient anatomy such that difficulty was encountered and subsequently force was used in an attempt to remove it and it ultimately separated.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.D1 correction: brand name updated.D2a correction: common device name updated.D3 correction: name, address updated.
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