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This supplemental report was submitted to provide additional information to mdr# 8010047-2020-04619.The original equipment manufacturer (oem), performed a device history record review and no abnormalities were noted.No device was returned to the oem, however, an investigation was completed by the oem and determined that there is no manufacturing, material or processing related cause for this failure mode.Based on previous complaints, it was speculated that when the balloon was inflated and quarrying, the rubber of the balloon was damaged at the corner of the stone and the balloon ruptured.However, it was not possible to determine when and what load was applied and the balloon was punctured.Olympus will continue to monitor the field performance of this device.After checking the contents of the instruction manual, the following caution was issued regarding the description related to this event.- confirm that the balloon is completely deflated when inserting the instrument into the endoscope.If the balloon is not deflated completely, the distal end of the instrument may extend from the distal end of the endoscope abruptly.This could cause patient injury, such as perforation, bleeding, or mucous membrane damage, and could damage the endoscope and/or instrument.- do not force to insert the instrument if resistance to insertion is encountered.Reduce the angulation (or lower the forceps elevator if applicable) until the instrument passes smoothly.The use of excessive force causes patient injury, such as perforation, bleeding, or mucous membrane damage.It may also damage the endoscope and/or instrument.- do not advance or extend the instrument abruptly.This could cause patient injury, such as perforation, bleeding, or mucous membrane damage.It could also damage the endoscope and/or instrument.- insert the instrument into the endoscope slowly.Otherwise, the instrument and/or the endoscope may be damaged.
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