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B5 - executive summary - updated there are controls in the manufacturing process to ensure the product met specifications upon release.The subject device was not available; therefore, a visual inspection as well as a functional evaluation could not be performed.The reported event is covered in the device directions for use (dfu).As well, the risk of the reported event is documented in the risk documentation and there are current controls to mitigate the risk of the as reported event.The reported events could not be confirmed, and it cannot be confirmed that the device met specification, as the device was not returned.It was reported that subject guidewire - defective, potential tip fracture.Additional information provided by the customer indicated that the device was prepared as per the dfu, the device was confirmed to be in good condition prior to use, continuous flush was maintained throughout the procedure, friction/resistance was encountered during the procedure and force was used to overcome resistance.It is probable that the re were procedural and/or anatomical factors present during the use of the device which may have caused the reported guidewire friction.It was stated that force was used to overcome resistance, this is likely what caused the guidewire to fracture.As per the synchro select ifu nv00053280-02b "always advance or withdraw the guidewire slowly and carefully.Never advance, auger, withdraw, or torque a guidewire which meets resistance.Resistance may be felt and/or observed under fluoroscopy by noting any buckling or prolapse of the guidewire tip.Excessive force against resistance may result in damage to the guidewire, such as separation of the guidewire tip, damage to the interventional device, and/or vessel perforation.Determine the cause of the resistance under fluoroscopy and take any necessary remedial action." based on review of all available information an assignable cause of procedural factors will be assigned to the reported event of guidewire friction, as this defect appears to be associated with a product that met stryker design and manufacturing specifications and was used in accordance with the dfu, but performance was limited due to procedural factors during use.An assignable cause of use error will be assigned to the reported event of guidewire distal tip broken/fractured during use, as the issue investigation confirms that there was an act or omission of an act that resulted in a different medical product response than intended by the manufacturer and/or expected by the user.
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