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The device was being used off label for an unapproved indication.This catheter is only indicated for stent placement.This device was being used for main pulmonary artery valvuloplasty.A comparative catheter from the same lot was pulled and tested for rated burst pressure.The labeled rbp for this device is 3 atm.The comparative catheter was immersed in a body temperature bath and inflated 40 times to 3 atms.The balloon was then inflated in 1 atm intervals, starting at 4 atms, until failure occured at 7 atms, which is more than double the labeled rbp.
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