It was reported that after surgery, the zimmer pulsavac plus hip kit exploded twice in the medical garbage bin after it was disposed of and the bin has changed shape.Additionally, when the device was put in the garbage bin, it started to move.No inflammable things were in the bin.The product was disposed of by the customer because it was burned.There was no patient/user harm or delay of the surgery reported.
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The complaint could not be confirmed.The device was not returned.The most likely cause for the batteries to explode, as defined by the warning instructions from the battery manufacturer is for the batteries to short out or to develop excessive heat whereby causing a fire to initiate the explosion.Based on the customer's report that the device was burnt it is most probable that the device caused a small fire.The conditions at the time of the incident and the contents of the medical waste container are unknown.However, the potential for the batteries to explode is addressed in the ifu and in the risk assessment.Conjecture indicates that when the device was discarded, the trigger was bumped and activated the device.The device when activated would cause the device to expel the liquid that remained in the tubing.Any liquid contact has the potential to short the battery pack causing it to heat up.The root cause of this incident is most likely the improper disposal of the device.
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