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Visual and functional inspections were performed on the returned device.The reported difficulty removing the device from the introducer sheath and guiding catheter could not be replicated in a testing environment due to the condition of the returned device.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.Additionally, it should be noted that the coronary dilatation catheters (cdc), nc trek rx, global, instruction for use states: with 4.5 mm and 5.0 mm balloon dilatation catheters, some increased resistance may be noted upon insertion or withdrawal into or out of the guiding catheter.The investigation was unable to determine a conclusive cause for the reported difficulty removing the device from the introducer sheath and guiding catheter.However, factors that can contribute to difficult to remove/resistance with the introducer sheath and guiding catheter post-inflation include, but are not limited to, loose balloon folds, guiding catheter lumen obstructions, kinks, bends or procedural technique.The product risk assessment identifies this as a foreseeable event; as such, design and manufacturing controls and mitigations have been established for potential causes.There is no indication of a product quality issue with respects to the design, manufacture, or labeling of the device.
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