Related mdr's: 3011175548-2022-00191, 3011175548-2022-00200, 3011175548-2022-00199, 3011175548-2022-00201, 3011175548-2022-00202, 3011175548-2022-00203, 3011175548-2022-00204, 3011175548-2022-00213, 3011175548-2022-00205, 3011175548-2022-00206, 3011175548-2022-00208, 3011175548-2022-00209, 3011175548-2022-00212, 3011175548-2022-00210, 3011175548-2022-00207.Sixteen (16) complaints were received, reporting that upon opening oasis dual drains it was discovered that the patient tubes were kinked.The included complaints are (b)(4).Kinked tubing is a known issue to occur with drains manufactured between feb 09, 2019 and october 29, 2021, as identified in capa 439435.The root cause for this issue was determined in capa 439435 to be design control during the redesign of the patient tube.The wall thickness of the patient tube was decreased, which led to an increase in complaints about kinked tubes.Capa 439435 reverted that change, returning the tubes to their previous wall thickness and also adding an end cap to the tubes to help protect them from damage.No confirmed complaints of this issue have been identified for any devices manufactured after capa 439435 was implemented on oct 29, 2021.The lot numbers of the 16 complaints from korea were not provided, so their dhrs could not be reviewed.However, shipping records to the korean distributor revealed that from january 2021 to the present, all but one shipment was from the prior tubing design, prone to the kinking defect observed.These complaints are most likely due to the same root cause as determined in capa 439435.As no devices were returned and no lot numbers were provided, there is no evidence to suggest a different root-cause.One of the complaints was received with a picture of the kinked tube, confirming the complaint for at least one of the drains.A review of the labeling was performed and concluded that there are appropriate precautions in place to handle this issue.The ifu instructs the user not to use a device if it is discovered that the device is damaged.A risk review found that the risk management documents for this product adequately address the reported defect and the severity and anticipated occurrence level are appropriate.H3 other text : not available for return.
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