Product evaluation: investigation of the device could not be performed because it was not returned for evaluation.A review of the device history record confirmed the device met all visual, dimensional, and functional specifications at the time it was manufactured, prior to shipment.There was no evidence to suggest there was an intrinsic defect in the pressurewire and the cause for the reported event remains unknown.The pressurewire instructions for use (ifu) states that vessel dissection is a potential complication which may be encountered during coronary angiography and coronary angioplasties.The pressurewire instructions for use (ifu) states that the user should not torque the pressurewire without observing corresponding movement of the tip; otherwise vessel trauma may occur.Device not returned for investigation.
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