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Customer reported, "i've seen 3 almost flat air cushions over the last couple of weeks," and no injury was reported.Samples were returned; medline was not able to find any holes or tears in the seams, sent photos to the qe in asia, and requested review of the production record and inspection records with the vendor.The quality defect was confirmed as reported, and it was determined that the maintenance frequency for the molds is too low, and long term withstand voltage tests, pressure is too low.The vendor changed the procedure of maintenance frequency of the mold to once a month and will increase the pressure to 200 kilograms/6 columns; complaint trending for the last 6 months was reviewed and this is not a trending issue as the quality rate is <0.2% of product sold.There were no reports of death, serious injury, medical intervention, or follow up care.It has been determined that the reported event could cause or contribute to serious injury if it were to occur again.In an abundance of caution, this is a reportable event.If additional information becomes available this report will be reopened and reevaluated.This medical device report (mdr) is being submitted as part of retrospective review activities, which include review of historical data in accordance with regulations at 21 cfr part 803.The information included in this mdr reflects the information reasonably known to the manufacturer at the time of this retrospective review and submission.
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