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(b)(4).The device was not returned for analysis.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 revealed no other complaints.The armada 35 instruction for use states: inflation in excess of the rated burst pressure may cause the balloon to rupture.Based on the information provided, the balloon rupture was the result of procedural circumstances.It could not be determined if the balloon rupture was the result of interaction with the heavy lesion calcification, or if inflating the balloon above the rated burst pressure of 18 atmospheres caused the rupture.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.
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