An unspecified tubing concern was reported.The as-received set sample was visually inspected for kinks, incomplete bonding engagements, holes/tears in the tubing or damages to the components.None of these were observed it was identified during inspection that there was a bulge along the silicone segment.Further handling of the observed bulge area noted it felt softer/weaker as compared to the rest of the silicone segment.No other issues were observed with the set sample.Since the observation of the bulge in the silicone segment has already been observed in a high number of previously investigated complaints, functional testing was not conducted for this failure.Previous investigation have found that a bulge can occur when an iv push medication or flush is executed below the pump without first clamping the tubing above the injection port.This action was found to result in excessive pressure within the silicone segment thus causing the silicone segment to bulge.The root cause for the source of the excessive pressure is unknown.
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