(b)(4).
During processing of this complaint, attempts were made to obtain complete event, patient and device information.
The customer reported the device was discarded.
Investigation is not yet complete.
A follow up report will be submitted with all additional relevant information.
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It was reported that the procedure was to treat a lesion in the mildly tortuous, heavily calcified, 90% stenosed proximal left anterior descending (lad) coronary artery.
A 3.
50 x15 mm nc trek rx balloon dilatation catheter (bdc) was selected for the procedure.
The bdc was advanced with no resistance to the lesion.
Upon the first inflation of the balloon to 12 atmospheres, the balloon ruptured.
The bdc was replaced with a 3.
50 x 15 mm non-abbott bdc and the procedure was successfully completed with the implant of an unspecified stent.
There was no reported clinically significant delay in the procedure.
There was no reported adverse patient sequela.
No additional information was provided.
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(b)(4).
The device was not returned for evaluation.
However, there was no leak noted during preparation prior to use, which suggests a product quality issue did not contribute to the reported difficulties.
In this case it is likely that the balloon interacted with the mildly tortuous, heavily calcified and 90% stenosed lesion such that the balloon became damaged and subsequently ruptured during inflation.
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.
The investigation determined the reported difficulty appears to be related to circumstances of the procedure.
There is no indication of a product quality issue with respects to the design, manufacture, or labeling of the device.
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