(b)(4).The sample was returned for evaluation.A visual exam was performed and there was no damage observed.The device was inflated and deflated with the check valve normally.It was observed that the deflation was slightly sluggish when deflated with the red plug open; however, with a slight pinch on the sides of the red plug the deflation improved.A device history record (dhr) review was performed and there were no issues found that could relate to the reported complaint.Based on the investigation performed, it was found that the device was fully functional, and could be inflated and deflated with the check valve normally.The deflation could be improved with a slight pinch on the sides of the red plug.This could be due to inevitable expansion and contraction of the components material during logistics movement over time.Trending of this incident will be closely monitored.
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