Medical device expiration date: unknown.Device manufacture date: unknown.Investigation summary: dhr is not performed as the lot number is "unknown" for this complaint.1 photo was returned from the customer.The photo shows that the sample gauge is 24g, and the leakage is marked in red as the connection between the extension tubing and the connection site.As the defective sample was not returned, the specific damage status of this area cannot be determined.Conclusion(s): the returned photo shows that the connection between the extension tubing and the connection site is leakage.As no defective sample returned, the specific damage state cannot be determined, so the root cause cannot be determined.The plant will continue to track and pay attention to this area of damage.
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