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Manufacturing and quality control data: the progav® 2.0 was manufactured by a qualified employee in november 2020.Deviations during assembly did not occur.The valve was sterilized by miethke and released for shipment after final inspection.The progav® 2.0 has a normal pressure range of 0 to 20 cmh2o.The valve was inspected as article fx673t.All parameters have been inspected and approved during the manufacturing process.All parameters have been assessed as meeting specifications.Visual inspection: some deposits on the product, but no damages were detected.Permeability test: a permeability test has shown that the valve is permeable.Adjustment test: the progav® 2.0 was tested and is adjustable to all specified pressures.Klick force and brake function test: the brake functionality test has shown that the brake function operates as expected.However, the breaking force required was not within the given specifications.Computer controlled test: to investigate the claim of overdrainage, the opening pressure is measured using a miethke computer controlled testing apparatus which simulates a cerebrospinal fluid flow.The valve is tested in both the horizontal as well as the vertical positions.The results show that the valve operates within the accepted tolerance in horizontal positions.Internal inspection: after dismantling of the valve, some deposits were found in progav® 2.0.Result: based on our investigation, we are detected deposits in the valve.It is possible that the deposits to a temporary compromise of the valve malfunction in the past.As described in scientific literature, the problem encountered is one of the known, inevitable risks of hc-therapy by shunt implants.We can exclude a defect at the time of release.The valve met all specifications of the final inspection when released from christoph miethke gmbh & co.Kg.No further regulatory actions are required from our point of view.
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It was reported that a progav 2.0 shuntsystem (part # fx673t) was implanted during a procedure performed on (b)(6) 2021.According to the complainant, the shunt system was believed to be operated in overdrainage, is blocked and was difficult to adjust.The patient underwent a revision procedure performed on (b)(6) 2022.The complaint device was returned to the manufacturer for evaluation.No patient complications were reported as a result of the revision procedure.Age: 4 years, height: 106 centimeters (cm), weight: 16 kilograms (kg).Same event als medwatch-no.3004721439-2022-00279.
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