A lot history review (lhr) review is not possible, as no manufacturing lot number has been provided by the complainant.The complaint of an external leak is confirmed and will be considered user related.During functional testing a leak was observed emanating from the venous extension tubing.With the tubing relaxed the od surface reveal sharp well-defined edges.Applying tension on both sides of the split site reveals smooth, glossy and striated surfaces indicating partial severance by a sharp instrument such as a knife or surgical scalpel.No mechanical damage is noted to the od of the tubing around the slit site.Despite this, the tubing walls appear uniform in thickness and without any manufacturing defect.No tearing in the tubing was observed during gross and microscopic examinations.Gross visual and microscopic examinations function and tactual testing shows no evidence of a defect or deformity related to the manufacturing process.
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