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It was reported that the procedure was to treat an unspecified lesion in the first diagonal (1st) artery.A 2.75x15mm nc trek balloon dilatation catheter (bdc) was advanced for post-dilatation, however the bdc met resistance with the ht bmw universal ii guide wire (gw) and became stuck on the guide wire preventing it from reaching the target lesion.The bdc was inflated one time, close to the target lesion, however the balloon did not deflate.Damage was noted to the shaft of the bdc which was preventing the balloon from deflating.The inflated balloon and the guide wire were removed from the anatomy, and a new abbott guide wire and abbott balloon were used to successfully complete the procedure.There was no adverse patient effect and no clinically significant delay in the procedure.No additional information was provided.
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Visual, dimensional and functional inspections were performed on the returned device.The reported difficulty advancing the device over the guide wire and failure to deflate could not be confirmed, as the guide wire was backloaded into the device without issue and the device deflation times met specifications 3 times.The reported kink on the shaft was confirmed.The reported failure to advance could not be replicated in a testing environment as they are based on operational circumstances.A review of the lot history record revealed no manufacturing nonconformities that would have contributed to this complaint.Additionally, a review of the complaint history of the reported lot did not indicate a lot specific quality issue.The investigation was unable to determine a conclusive cause for the reported difficulty advancing the device over the guide wire or the failure to deflate; however, the reported failure to advance and kink on the shaft appear to be related to circumstances of the procedure.Factors that may contribute to the difficulty positioning the balloon dilatation catheter (bdc) over the guide wire may include, but not limited to, manufacturing damage, device placement technique, guiding catheter support, inner diameter of guide wire lumen, condition of the guide wire, or damage to the distal shaft of the catheter.Additionally, factors that may contribute to failure to deflate the balloon include, but are not limited to, deflation technique, loose connection with the indeflator, contamination in the inflation lumen or damage to the guide wire and/or inflation lumen.In this case, a conclusive cause for the reported difficulty advancing the device onto the guide wire and failure to deflate could not be determined since the complaints could not be confirmed during return analysis.It was reported by the account that the bdc interacted with the guide wire resulting in the reported failure to advance.Furthermore, it is likely that as difficulty advancing the device was experienced, upon further manipulation of the device against resistance, the bdc became kinked resulting in the reported damage noted.There is no indication of a product quality issue with respect to design, manufacture or labeling of the device.
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