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The customer sample was received inside of plastic bag, not its original package.Visual examination showed that it is 3.03 inches in length portion of silicone round drain 10fr.Visual inspection revealed that the silicone tubing broke off at unperforated tubing section.Microscopic examination revealed wavy/jagged edge at the tubing fracture site and no distortion and/or tears in the adjacent portion drain, which suggests that the drain was not stretched (elongated) to failure.The characteristics of the fractured area and the absence of any tubing distortion are similar to failures caused by abrasion or scoring with a sharp instrument on the tubing surface.The device history record (dhr) for the finished good was reviewed and no incident was documented that could have caused this type of non-conformance.No reported non-conformances were found from review of the records, which included incoming and in-process inspection, non-conforming reports and manufacturing records.The minimum tensile strength specification for the tubing is 750 psi.Dhr of this tubing demonstrated tensile strength results of a minimum of 835 psi in testing performed.The minimum pull test specification for this drain is 3.0 lb.Dhr demonstrated pull test results of a minimum of 5.0 lb in the perforated area in quality testing performed.Inspection record for the raw material used to extrude the tubing was reviewed and certificate of analysis (coa) indicates that all test results were within specification limits, including tensile and tear tests.This is the first complaint received on this catalog in the last 12 months.The lot number reported was manufactured on march 23, 2015.The most probable root cause was identified as misuse by the customer since the wavy/jagged edge condition observed at the fracture area suggests that an instrument was used to handle the product which may have inadvertently damage the product thus leading to tubing breakage.It is also recommended to strictly follow the instructions provided in the instruction for use data included with the product to ensure drains are properly used.According to the instructions for use (ifu). ¿drains or tubing should not be handled with any instruments.This can lead to tearing, warping, or weakening and subsequent breakage of the drain.To facilitate removal of the drain, the drain and tubing portions should not be curled, pinched, over-stretched or sutured; either internally or externally.Do not suture the drain(s).Drains should be placed and removed carefully by hand only with a slow, steady pressure.Excessive force may result in breakage.During placement and removal of the drain, do not nick, cut, tear or otherwise damage the drain as this may lead to breakage.Leaving the drain implanted for any period of time which allows for tissue ingrowth around the drain and into the holes, may cause breakage on removal.¿.
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