Marty,Yes, Gotz Friederichs from NxStage, Manager, System Engineer was here yesterday and confirmed that the control unit was reading the conductivity correctly. I think the assumption is that the control units (last two) were adding too much water to the batch thus diluting the mix. He stayed for almost 3 hours and left after he installed a new control unit and started the priming of a new pak. I am sorry to say that this batch failed as well. I used a new control unit and a new pak as well as a new lot of sak's. I have to continue using bagged solution for now. I have not heard from them today as to the time line for the fix. I really hope that it is sooner than later. Mike
Quote from: MJB on January 30, 2007, 06:40:53 PMMarty,Yes, Gotz Friederichs from NxStage, Manager, System Engineer was here yesterday and confirmed that the control unit was reading the conductivity correctly. I think the assumption is that the control units (last two) were adding too much water to the batch thus diluting the mix. He stayed for almost 3 hours and left after he installed a new control unit and started the priming of a new pak. I am sorry to say that this batch failed as well. I used a new control unit and a new pak as well as a new lot of sak's. I have to continue using bagged solution for now. I have not heard from them today as to the time line for the fix. I really hope that it is sooner than later. MikeI am wondering if it is your water source. Maybe the water is to hard, or maybe filter is bad. Could it be one of those two? It you are on your 3rd control unit it does not sound like it is the control unit that is causing the problem. Did the engineer check your filter (the white sediment filter, not the pak). Did he test the water? Sorry you are having these problems.- Epoman
Still no PureFlow!! Trying hard to work it out. Sorry for not keeping this thread up to date. I will post the rest of the story once I have succeeded making a batch. It has been one month now w/o PureFlow and NxStage is sending someone else out to troubleshoot all the problems in our center.
I am happy to report that after four long weeks w/o PureFlow I have made a successful batch.After several control units and visits from NxStage we agreed that it would be a good idea to take my control unit back to my center to have them attempt to make a test batch. After I set up the PureFlow at my center my training nurse asked if I would like to try one more control unit. I asked where it came from and it was from a patient that quit the Pureflow out of frustration. I figured that I had nothing to lose and NxStage strongly agreed. I woke up Friday morning expecting to hear that ominous beep...beep. I actually thought I heard it for a second until I checked and saw that it had passed conductivity. Yes, this was a good day in my dialysis world. I contacted my center to check the results of the test we performed and I found out it failed conductivity. I was so happy to hear this. I called Scott at Nxstage and he and the rest of the R&D staff were so relieved that I finally had success. I was told that this is a problem that is receiving their highest attention. It seems to be a problem with the combination of cold temperatures (shipping) and high water pressure. As I have said before that the entire staff at NxStage has been extremely helpfull and very attentive. I could not have asked for more. I hope no one else will have to experience this as they seem to have a grip on the problem. Thanks to all who listened to my saga.Mike
I am happy to report that after four long weeks w/o PureFlow I have made a successful batch....Thanks to all who listened to my saga.Mike