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Terumo medical received an fda medwatch report # (b)(4).The event description states: "stent deployed, the wire coiled itself to the distal end of the stent and could not be removed.Physician attempted to dislodge the wire tip with other interventional wires and microcatheters, but was unsuccessful.Another physician scrubbed in to assist but was also unable to dislodge the wire.Ct surgery was consulted.Patient required surgery for removal of wire.".
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This report is being sent as follow-up no.2 to provide the completed investigation results.The actual device was not returned; therefore, an evaluation of the actual device was unable to be conducted.History investigation of the product with the involved product code/lot number no anomaly was found in the manufacturing record and the shipping inspection record.No other similar report was found in the past.Udi no.(b)(4).Based on the investigation result, no anomaly was found in the manufacturing record and the shipping inspection record.However, since the actual device was not returned and investigation of it could not be performed, it was not possible to clarify the cause of occurrence.Ashitaka factory has been making efforts in maintaining the quality of the product by performing following controls.In the product assembling process, 100% visual inspection is performed to confirm that there is no deformation on the coil.After the product assembling process, the outer diameter is measured on 100% basis to confirm that there is no anomaly in it.In the shipping inspection, the sliding resistance of distal end is measured for each lot to confirm that there is no anomaly in the lubricity.In the shipping inspection, pulling strength is measured on sampling basis for each product code/lot# to confirm that there is no anomaly in it.The ifu of this product includes the following warning.: if any resistance to the runthrough ns or the dilatation catheter is felt during manipulation or if the shape, behaviour or position of the guide wire's tip seems improper, e.G., in a case where the tip is trapped due to vessel spasm or some other cause or the tip is folded as shown in fig.2, stop manipulating the guide wire (and the catheter) and determine the cause carefully by fluoroscopy and take suitable remedial actions.Then remove the guide wire slowly, without turning, to exchange it for a new one.Continuing guide wire or catheter manipulation in the said situations may result in damage to the vessel, damage to or separation of the guide wire's tip, and/or damage to the dilatation catheter.Terumo medical corporation (tmc) (importer) registration no.(b)(4) is submitting this report on behalf of ashitaka factory of terumo corporation (manufacturer) registration no.(b)(4).
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