The autopulse platform ((b)(4)) was returned to the manufacturer for evaluation.Visual inspection was performed and the top cover and motor cover were observed to be damaged.It was also observed that the head restraint brackets were cracked and the battery partition cover was missing.From the condition of the platform, the damages appear to have been due to wear and tear.Functional testing was performed and it was observed that the drive shaft was unable to rotate freely.The customer's reported complaint of the lifeband being stiff and difficult to extend was observed during testing and is attributed to the clutch plate being sticky.The sticky clutch plate could lead to the drive shaft not being in the "home" position, which in turn could result in the platform displaying a user advisory (45).However, the user advisory (ua) 45 was unable to be duplicated during functional evaluation.A review of the archive was performed and no user advisories or errors were observed on the reported event date of (b)(6) 2015.However, multiple user advisory 45 errors were observed on (b)(6) 2015, which was the last date of usage recorded in the archive.Based on the investigation, the part(s) identified for replacement are the top cover, motor cover, clutch plate and battery partition cover.In summary, the reported complaint of the platform displaying a ua 45 and the lifeband being difficult to extend was confirmed through functional testing and archive review and is attributed to the clutch plate being sticky.Following service, the device passed all testing criteria.
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