Qn#: (b)(4).The sample was returned for evaluation.A visual exam was performed and it was observed there was a hole in the cuff.It was also noticed that the cuff showed signs of losing its resilience due to stress at the failure location.The glue line at the joint of the cuff was intact.The check valve was tested and found to be functioning as intended.No blockage was found.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, the reported complaint was confirmed.It is suspected that there was some kind of residual air/moisture that was left inside the device while re-processing/handling that caused the cuff to rupture.During high temperature, vacuum, and humid autoclaving environment, any air/moisture left inside the cuff will expand significantly and it will damage the properties of the device to an irreparable condition.
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