A facility reported that after inserting both ventricular and peritoneal catheters and connected to the valve, the surgeon pumped the reservoir to flush the valve and be sure there is fluid at the end tip of peritoneal catheter and the valve seemed blocked, the reservoir was stiff and no fluid from the peritoneal end tip.He decided to change valve.The event led to 2 hours surgical delay.
|
The hakim valve was returned for evaluation: dhr - lot 5321745 conformed to the specifications when released to stock.Failure analysis - the valve was visually inspected; no defects noted.The position of the cam when valve was received was 110mmh2o.The valve was hydrated.The valve passed the tests for programming, occlusion, leaks, reflux and pressure.Root cause - 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 valve seemed blocked could be due to users¿ error, at the time of investigation no occlusion was noted with the valve.
|