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A territory manager reported an end user experienced an issue when using a fiber from a nevertouch 65cm kit w/gripper and rfid tag kit.The physician treated the first vein successfully with the laser fiber and removed the fiber from the sheath, in preparation to treat the second vein.While removing the laser fiber from the sheath, the 'gold jacket tip' came off inside the sheath.This occurred outside of the patient and the patient was unaffected.The physician used a new laser fiber to successfully treat the second vein segment.
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The customer's reported complaint of the gold tip detached from the fiber's shaft tip was confirmed.The most likely root cause for the tip detaching is dried blood on tip from first ablation that was not removed prior to pulling fiber back through tre-sheath.During a procedure, it is common for blood and biological matter to form on the tip gold tube due to heating that can occur in that area from the laser energy, as well as to migrate into the distal end of the tre sheath.That appears to be the case in this incident, as there was also significant biological material on the od of the gold tip.It is probable that when the fiber assembly was withdrawn back through the tre sheath for cleaning after the initial procedure, significant withdrawal force was applied to overcome interference encountered between the gold tip tube and tre sheath id due to a buildup of dried blood on the outer surface of the gold tip tube and a buildup of blood and / or biological matter inside the tre sheath, causing the gold tube to separate from the fiber.The deep indentation in the fiber's distal buffer layer and presence of adhesive indicates the gold tip was securely crimped into place during assembly.This is supported by the fact that the fiber was used to ablate the first vein with no issues.A review of the device history records was performed for the indicated lots for any deviations related to the reported failure mode of the complaint.The review confirms that the lots met all material, assembly and performance specifications; i.E.No ncr associated with reported failure mode.Labeling review: the instructions for use (16900393-01) which is supplied to the end user with this catalog number contains the following statement "prior to and during use, avoid damaging the fiber by striking, stressing, or excessive bending.Do not coil the fiber tighter than a diameter of 20cm" and "pull the sheath back and lock it to the sheath-lok fitting." the user manual (man/31/0075 us), which is supplied to the end user with this unit, states "before using a fiber, check it carefully for any signs of damage during storage or transit.Protective caps should be in place over sma connectors.Do not use if there is any sign of damage." a review of the angiodynamics complaint system noted no adverse trends for this complaint type and product family.This type of complaint will continue to be monitored for trends.Reference (b)(4).
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