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Additional information: device available for evaluation.A review of the complaint history, drawings, dimensional verification, device history record, instructions for use (ifu), specifications, and visual inspection of the returned device was conducted during the investigation.A used flexor ansel guiding sheath (kcfw-6.0-18/38-45-rb-anl2-hc) was returned for investigation.The dilators were not present.The connector cap is separated from the sheath tubing.A 2mm compression is present 8mm from the proximal end.3.2 cm from the distal end, a protrusion is noted.The flare is undamaged.The check-flo body was disassembled from the connector for further examination.No nonconformities were noted.The inner diameter of the connector cap is within specification.Instructions for use states, "warnings: before withdrawing the sheath through tortuous anatomy, insert the introducer dilator to avoid possible breakage.Precautions: this product is intended for use by physicians trained and experienced in diagnostic and interventional techniques.Standard techniques for placement of vascular access sheaths should be employed.Do not attempt to insert or withdraw the wire guide and/or introducer if resistance is felt." review of the device history record of the finished product shows no nonconforming events that would contribute to this failure mode.There were no other reported complaints for this lot number.Based on the information provided and the results of our investigation, a definitive root cause could not be determined.Measures have been conducted to address this failure mode.Monitoring will continue to be performed for similar complaints.
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