During code blue in ccu, patient's chest was opened at the bedside.Pt found to be in vfib and doctor attempted internal defibrillation x2 (two times) with internal paddles and electrodes.Defibrillator did not discharge despite multiple attempts.Staff applied external pads and defibrillated without any issues.Defibrillation was delayed by a couple minutes while pads were exchanged.Code event completed without additional events.Biomedical engineering confirmed internal handle failure after only 3 discharges in 10 test firings at 30 joules.Manufacturer response for internal defibrillation handles, zoll autoclavable internal handles (per site reporter).Manufacturer provided us with information on in-between patient checks and quarterly electronic validation checks as well as procedures on performing output test prior to each patient use.Manufacturer also informed us of 100 sterilization cycle limits on both the handle and internal electrode spoons.
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