By now, we’re hopefully all on intraosseus access if normal iv access is problematic. Most probably use the EZ-IO, which helped revolutionise io access by making it easy, fast and pretty reliable. But getting good flow can often be a problem. The FAST1 seems to change that.
Watch the video (in Norwegian), and watch the flow at 4:30. It’s not just dripping fast – it’s flowing! Without a pressure bag! Now, that’s impressive.
Special forces IO choice
The FAST1 sternal io needle has been around for a long time, but I’ve never had the chance to test one before now. And thus, I had settled with io access often giving mediocre flow rates, even with pressure bags. Enter the FAST1 sternum needle. This was tested with all sorts of other io needles by the Norwegian special forces. Cost is not an issue in a special forces setting. Weight/batteries can be an issue. But the biggest focus was on getting high flow rates. If one of these guys need fluids, they probably need it quickly and lots of it. The FAST1 came out ahead.
But HOW much better flow rates? Watch the video from a demonstration we did in our department. One anaesthetic registrar injecting the FAST1 on another registrar. Then hooking the io up to a bag of Ringer’s. At 4:30 you can see how the fluid flows freely. Not dripping – flowing! Without a pressure bag! I’ve never seen that with an io access before.
Short needle – High flow
The secret seems to be the very short needle on the FAST1. The needle’s inner diameter is 17G, but because it’s only about 1cm long, it doesn’t restrict flow much. The needle continues in a G14 plastic tube that connects to your giving set. This makes the FAST1 low profile, but – most importantly – high flow.
After this demonstration, it was decided we need the FAST1 in our trauma bay. Hopefully, after dodging a few bureaucratic hurdles, it will be there, next to the EZ-IO. This also made me want to share the demonstration, to see if you’re as impressed as I am. Any other input on io’s are most welcome.