D4: udi: n/a as this product code is not exported to the us market.D6a: implanted date: device was not implanted.D6b: explanted date: device was not explanted.E2: health professional: unknown.E3: occupation: others.G4: 510(k) no:k033583, k033913.1.Inspection of the actual sample: 1.1 visual inspection found that the distal end of the actual catheter sample had been broken off and the reinforcement coil had been unraveled and exposed.1.2 magnifying inspection found that the actual guidewire sample had no anomaly in the appearance such as peeling of outer layer.1.3 from 1.2 and 1.2 above, it was inferred that the peeling of coating indicated in this complaint referred to the broken distal end of the catheter.[inspection of the actual catheter sample].1.4 magnifying inspection found that the inner layer was approximately 2.0 mm defective, and the outer layer was approximately 2.5 mm defective in comparison with a current product sample.The defective length of reinforcement coil was unknown because it was unraveled.1.5 magnifying inspection found that the area near the broken part had been crushed.The distal end of the unraveled reinforcement coil had been broken off.1.6 electron microscopic inspection found that the edge of outer and inner layers had been torn off.From this, it was inferred that some external force was applied to this area, which resulted in the breakage.[function confirmation].1.7 outer diameter of the actual catheter sample (normal section) met the factory's specifications.No anomaly was found.2.History investigation: 2.1 the manufacturing record and the shipping inspection record of the involved product code/lot#: no anomaly was found 2.2 past complaint file of the product with the involved product code/lot#: no other similar report from other facilities was found.3.Cause of occurrence: based on the results of the investigation, it was considered that the breakage was caused by some external force applied to the part in question; however, the timing could not be clarified because the details of the occurrence situation were unknown.The crush in the vicinity of the broken area was thought to be caused by the application of compressive force to the area, however, the timing could not be clarified.In the manufacturing process, the product undergoes 100% visual inspection under magnification after tip processing and before product packaging to confirm that there are no anomalies in the tip processing state; therefore, the detection of breakage or crushing at the same level as the actual catheter sample is probable enough.In addition, any breakage like that on the actual catheter sample have never been observed within the manufacturing process to date.Therefore, it was considered extremely unlikely that this event had occurred in the manufacturing process.Relevant instructions for use (ifu) reference.(cautions for use) precautions.Do not use if the unit packaging or the product have been damaged or soiled.Terumo medical products (tmp) (importer) registration no.2243441 is submitting this report on behalf of ashitaka factory of terumo corporation (manufacturer) registration no.9681834.
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