Visual inspection in the first step of our investigation, we performed a visual inspection of the product.We have checked for possible damages, deformations of the housing or other abnormalities.The following observations were made during the visual inspection: - no visible abnormalities detected.Permeability test to check if the peritoneal catheter are blocked, we have performed a permeability test on the product.The test showed that the peritoneal catheter was permeable.Internal inspection of product in order to verify whether the investigated peritoneal catheter were compromised by the known risks of hydrocephalus therapy, e.G.By a build-up of natural substances (protein, blood, or tissue particles) in the cerebrospinal fluid, we have dismantled the catheter.After dismantling of the catheter, was not deposits were found.Results based on our investigation, we are not able to substantiate the claim of "blockage".At the time of the investigation, it is not clear to us how the mentioned functional impairment occurred.We can exclude a defect at the time of release.The product system met all specifications of the final inspection when released from christoph miethke gmbh & co.Kg.
|