(b)(4).The device was not returned for evaluation.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 of the reported lot did not indicate a lot specific quality issue.Based on the information reviewed, there is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.The investigation determined the reported kink and tip separation appear to be related to circumstances of the procedure; however a conclusive cause could not be determined for the inflation issue.
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It was reported that the procedure was to treat a de novo lesion located in the mid circumflex artery with mild tortuosity and mild calcification.Resistance was not felt during advancement of the nc trek balloon dilatation catheter (bdc) for post-dilatation and it crossed successfully; however, the balloon was unable to be inflated.It was observed that there was a kink on the distal catheter and the balloon tip had torn off and separated from the device.Reportedly, the tip separation occurred within the guiding catheter and the separated tip remained on the guide wire.The bdc and separated tip were able to be removed together as a single unit with the guiding catheter.No further post-dilatation was performed.There were no adverse patient effects or clinical significant delay in the procedure reported.No additional information was provided.
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(b)(4).The complaint investigation determined the reported difficulty was related to manufacturing issues associated with the protective sheath.On march 14, 2017, abbott vascular decided to initiate a voluntary field action for some sizes and lots of the nc trek family of dilatation catheters for difficulty to remove sheath which may lead to inflation or deflation issues.Abbott vascular performed a comprehensive investigation which included device analysis, manufacturing evaluation and trend analysis.The root cause identification was complicated by the fact that users were describing multiple symptoms when reporting the complaints.To date, the frequency of worldwide reported events for difficulties removing the protective balloon sheath, inflation and deflation has reached an actionable limit, thus abbott vascular communicated the voluntary field action to the fda on march 17, 2017 [medwatch # 2024168-2017-02310].Corrective action has been implemented per site operating procedures.The product will continue to be trended.The abbott internal recall number is 2024168-3/14/2017-002-r.
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