The hakim valve (id 823164) was returned for evaluation: device history record (dhr) - product code 82-3164 with lot 6855340, conformed to the specifications when released to stock.Failure analysis - the position of the cam when valve was received was on setting 120 mmh2o.The valve was visually inspected; a debris biological was noted in the housing.The valve was hydrated.The catheter was irrigated; no occlusion noted.The valve passed the tests for programming, occlusion, leak, reflux and pressure.The valve was dried.Root cause analysis ¿ no root cause could be determined as the technician could not confirm any problem with the valve at the time of investigation.A possible root cause for the issue reported by the customer could be due to biological debris and protein build up interfering with the valve.
|