One 8.5f fast-cath introducer sheath and dilator were received for evaluation.The device was returned due to brk needle insertion difficulty.The sheath had been perforated proximal to the distal tip.A needle/stylet assembly from current inventory was inserted and advanced through the dilator; however, resistance was noted at the aforementioned perforation.The device history record was reviewed to ensure that each manufacturing and inspection operation was performed.Based on the received condition of the device and the information provided, the cause of the insertion difficulty and perforation remains unknown.
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