The subject device was not returned to olympus medical systems corp.(omsc) for evaluation.Therefore, the exact cause of the reported event could not be conclusively determined.A supplemental report will be submitted, if additional or significant information becomes available at a later time.
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During an ercp, the subject device was used.In the procedure, the balloon of the subject device was broken and remained in the bile duct.The user could remove it with a grasping forceps of 3 wires.The intended procedure was completed with another device.There was no patient injury reported.The user reported the stone extracted from the patient was very large.This is the report regarding the breakage of balloon inside the bile duct.
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This is a supplemental report to provide additional information.The subject device was returned to olympus medical systems corp.(omsc) for evaluation.The tube was separated at 360mm (at the joint) from the distal end.The tube was stretched at 1086mm from the root of the control section side.There was no abnormality found with the balloon and other malfunction which related to reported phenomenon was not found.The device history record was reviewed and found no irregularities.The exact cause of the reported event could not be conclusively determined.However, based on the evaluation result, it is likely the reported phenomenon was caused by following factors; the subject device was caught in the stone or a forceps elevator of the endoscope, it was difficult to remove the subject device from the patient bile duct.The excessive force was applied to the tube when the user pulled the subject device to try to remove it from the patient bile duct.The above device handling has warned in the instruction manual as follows; if resistance is too strong and withdrawal is difficult, adjust the angle of the endoscope until the instrument can be withdrawn smoothly.Forcible withdrawal of the instrument could damage the instrument and/or endoscope.When using an endoscope equipped with a forceps elevator, do not withdraw the instrument from the endoscope if the forceps elevator is up.This could damage the instrument.
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