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Post by Chuck Weddle on Dec 13, 2022 15:35:49 GMT
I thought I had posted about this before but if I did, I can't find it.....
Has anyone had any problems with failures of the Pressure Monitoring Module PA/PV (34561641)?
We have had 13 fail since April on 12-18 month old machines (36 machines). Many have been returned to Germany for investigation and the only report that comes back basically says that the module had failed (well DUH!).
Now they are saying that the problem isn't happening anywhere else GLOBALLY and it must be something happening in our facility. I can't think of anything the staff could possibly do to cause these failures.
These are electronic/transducer failures, not pressure leaks. The staff would turn the machine on and the PV might be stuck at 480. Another, the PA was at -180 and fluctuating. This is with nothing connected to the ports and even the internal filter disconnected.
One of the tech service guys are coming tomorrow to observe, hopefully he can identify something or conclude that we got a batch of bad modules.
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Post by kendec65 on Dec 20, 2022 11:27:44 GMT
Chuck...How did this turn out?
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Post by Chuck Weddle on Dec 20, 2022 11:51:48 GMT
Chuck...How did this turn out? Needed to reschedule. He's coming tomorrow. |
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joey
Full Member
Posts: 226
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Post by joey on Jan 11, 2023 19:28:49 GMT
Chuck...How did this turn out? Needed to reschedule. He's coming tomorrow. Hey Chuck just curious if he came and what they found? thanks
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Post by Chuck Weddle on Jan 11, 2023 20:14:39 GMT
He couldn't find anything being done wrong. He commented "maybe you got a bad batch". Well DUH! I've been saying that since last May!
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Post by Chuck Weddle on Jan 12, 2023 14:38:29 GMT
We just had another fail this week and for the first time it happened after the treatment was started.
The treatment started with the arterial pressure reading a normal -130 mmHg. A few minutes later the arterial pressure was alarming at a POSITIVE 200 mmHg.
The PCT thought that the arterial POD needed to be adjusted so they disconnected the monitor line and the arterial pressure instantly went to the top of the POSITIVE scale and alarmed. The monitor was stuck hard at the top and couldn't be reset so the patient's blood had to be manually returned.
Trends were downloaded and sent to Braun but I'm not optimistic they will show anything telling.
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Adnan
New Member
B Braun
Posts: 41
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Post by Adnan on Feb 20, 2023 7:08:53 GMT
Hi, I have two machines that have the same problems. One is stuck at -480 and the other one was fluctuating! Both machines are new! that's really annoying tbh  . |
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Post by Chuck Weddle on Feb 20, 2023 13:39:27 GMT
Hi, I have two machines that have the same problems. One is stuck at -480 and the other one was fluctuating! Both machines are new! that's really annoying tbh . Make sure you tell tech support you want to file a PIR. PM me your machine serial numbers, I'm interested in seeing if they our close to ours. |
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Post by SrCusEngr on Feb 21, 2023 22:14:31 GMT
Hi all. Understand that the PA/PV Monitor board has three components to accomplish its job. First is the PV pressure sensor. Second is a PA pressure sensor. Third is VBT. What is VBT? In the past, there was a feature to lower or raise chamber levels. But since we changed to Streamline line sets, it served no purpose. So they removed the Level Regulation assembly and replaced it with the PA/PV board. But VBT was still needed, so ther it is. In TSM, you will still find Level Regulation (test 1.25?) And can control VBT. So what does VBT do? During Blood Side p Sensors test, it allows the PV pressure to also be sent to the PA sensor. So you should see a small change in PA appear on the display. Now because there is a means to feed PV to PA, if the valve fails during treatment, you now have a path for a positive pressure to leak into a negative pressure area. You will see the PV membrane move to the sensor connection. You may even see the PA pod start to empty.
I hope this helps everyone in understanding this board and can engage VBT to troubleshoot. Remember, you can still see PA and PV in TSM by pushing the alarm silence button.
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