medtechguy

thanks HeySis. I appreciate your time for the response. Hoping to follow up on a question based upon your response. Since your main use of pressure bags is for ART lines, and you need to maintain ~300 mmHg otherwise you can get an over-damped waveform, typically how long before the pressure bag drops below 300 mmHg. I think the pressure continues to drop but at a fairly slow rate if only infusing 3 mL/hour of fluid but not sure how sensitive the system is before you get overdampening. Is this something you need to address frequently by repressurizing the infuser bag back to 300 mmHg (once every few hours?, once per day?, etc) thanks again.

hoping to get some better understanding of pressure infuser bag usage. all responses are greatly welcome. 1) What is the typical range (# of fluid bags put in it) and approx. average times this bag is used during that case for giving fluids. Majority of bags are disposable I believe (~60%) and are for just one patient use but don't think there is any limits on how many times it can be used in a case. 2) if the patient is critical and you need to slam blood products, do you setup multiple pressure bags with the blood products so that you can go one after the other, or do you take the time to switch the empty blood product out on the 1 pressure bag. 3) for a 1000 ml fluid, how often do you need to pump up the pressure bag or do you. The flow rate would continue to drop over time as the pressure would drop as the volume in the fluid bag is drained so what is the acceptable lower level of the pressure drop 4) do you mainly pump the bag to the standard 300 mg Hg pressure level? Seen some bags that also allow the bag to go up to 450 mmHg if the relief valve is set to the higher value. 5) How much value is this extra pressure (~450 mmH) for even faster flow rates or is 300 mmHg cover most needs?

I am not a nurse but develop med tech products for the OR. reading thru this blog, it seems like there are some missing need for delivery of albumin. hoping to get some opinions on this topic. Would there be value if albumin was available in a container that could administer the albumin from a self contained disposable pump. Similar to a disposable infusion pump but where the albumin is available already filled in a disposable pump, and it comes with a IV tubing set, and this tubing set has an adjustable flow regulator to allow flow adjustment from 1 to 150 ml/hr (or whatever the full spectrum of clinically relevant flow rates needed). Seems there is a lot of ad hoc configurations with different albumin offerings (bottles, bags) and tubing sets. This would be one complete kit where you could infuse the albumin independent of an electrical pump with tubing set provided. I have a solution but need to determine if there is a real need or problem. thanks for any input