This remediation mdr was generated under protocol (b)(4), as a result of warning letter cms#(b)(4).No problem or issues were identified during the device history record review.A sample was received for evaluation in an opened package.During visual inspection, the reported problem was verified.The cushion was deflated and a scratch on the cushion part was found.A v-shaped cut was found on the mask cushion.The scratches resembled those made with sharp blades.This issue was not associated with a pattern or a trend.Since the visual inspection of this product is not required in the manufacturing procedure, it is probable that it was difficult to detect this defect.Root cause was found to be a supplier item fault.The sample was sent to supplier for further investigation.D4 (udi), g3, g5 are unknown.
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