The autopulse platform (23223) was returned to the manufacturer for evaluation on 09/16/2015.Investigation results as follows: visual inspection of the returned platform was performed and no physical damages were observed.A review of the autopulse platform's archive was reviewed and a user advisory (ua) 45 (not at "home" position after power-on/restart) was observed on the reported event date of (b)(6) 2015.This user advisory is however unrelated to the customer's reported complaint of the lifeband being loose and not seating properly in the metal shaft.Functional evaluation of the returned autopulse platform was performed and it was observed that the autopulse lifeband was unable to lock in place.The channel roller assembly was found to be at fault.Following replacement of the channel roller assembly, the platform passed all functional testing.Based on the investigation, the part identified for replacement was the channel roller assembly.In summary, the customer's reported complaint of the lifeband being loose and not seating properly was confirmed.It was found that the channel roller assembly was at fault.Unrelated to the reported complaint, the autopulse platform displayed a user advisory (ua) 45 message on the reported event date.Per the autopulse resuscitation system model 100 user guide,the autopulse driveshaft has a "home" position that is a point of reference for autopulse operation.If the driveshaft is not at its home position when the autopulse is powered on, a user advisory (45) will occur.This user the part identified during investigation, the platform successfully passed all final functional testing.
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