The results of the investigation concluded that a portion of the tip coil had been stretched.The tip coil and the shaft had been bent at multiple locations.The device met specifications prior to leaving abbott manufacturing facilities as supported by a review of the device history record.Although the exact cause of the reported event remains unknown, the guidewire damage is consistent with the reported positioning issue.The cause of the guidewire damage is consistent with forcible contact during use.The pressurewire x wireless instructions for use (ifu) states to observe all guidewire movements.Whenever the guidewire is moved or torqued, the tip movement should be examined under fluoroscopy.Never push, withdraw, or torque the guidewire if it meets resistance or without observing corresponding movement of the tip, otherwise vessel/ventricle trauma may occur.The pressurewire x wireless ifu states that torquing or excessive manipulation of the guidewire in a sharp bend, against resistance, or repeated attempts to cross a total vessel occlusion may damage and/or fracture the guidewire.The pressurewire x wireless ifu states that the pressurewire¿ x guidewire is a delicate instrument and should be handled carefully.The pressurewire x wireless ifu states that if the pressurewire¿ x guidewire gets stuck or is damaged during the procedure, immediately disconnect the transmitter and replace the damaged guidewire, including the transmitter, with a new one.
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