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Updated fields: d4, d9, g3, g6, h2, h3, h4, h6, h11.The hakim valve (unitized), was returned for evaluation without the catheter.Dhr - lot 153061, conformed to the specifications when released to stock.Failure analysis - the valve was visually inspected; the needle guard part of the valve has been cut away and not returned, tie marks were noted in the proximal end of the valve, a cut in the silicone housing along the valve casing was also noted.The biological debris were noted inside the housing.The valve passed the tests for programming, occlusion, reflux and pressure.The valve was leak tested; only leak from cut.Root cause - no root cause could be determined as the catheter was not returned for investigation.A possible root cause for the issue reported by the customer, could be due to an issue at implantation phase (catheter too short / catheter damaged for example).The root cause for the cut/tear in the silicone housing along the valve casing" is probably due to a sharp or pointed object coming into contact with the silicone, as noted in the ifu, silicone has a low cut/tear resistance.
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