The hakim valve (id (b)(6) was returned for evaluation.Device history record (dhr) - the product code 82-3832 with lot cpmc2n conformed to the specifications when released to stock.Failure analysis - the valve was visually inspected; no defects were noted.The position of the cam when valve was received was 170mmh2o.The valve was hydrated.The catheter was irrigated, no occlusions noted.The valve was leak tested and no leaks noted.The valve passed the tests for programming, occlusion, reflux, siphon guard and pressure.No root cause could be determined as the technician could not confirm any problem with the valve at the time of investigation.The possible root cause for the issue reported by the customer, could be due to biological debris and protein build up interfering with the valve mechanism, at the time of investigation programing issues could be found.
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