Jul 14, 2026 · 59 min · 16 segments
Homemade beats store-bought. James Rippey, Kylie Baker, Arun Sett, and Adam O'Brien swap the recipes, rigs, and fridge-life hacks behind the phantoms they actually use to teach POCUS — chicken breast…
James RippeyHost
Kylie BakerGuest
Arun SettGuestAdam O'BrienGuest
Um, and then recently, uh, a neonatologist from Mater, um, gave me a little tip because a, a problem we find in the babies is trying to mimic the very small structures that we're often trying to calculate, uh, ca- to cannulate, especially in the, the preterm babies.
Um, and what she does is, I, I don't know if you can, um, imagine it, is she puts a large bore cannula, so like a pink cannula, in at an angle into the chicken or whatever medium you're doing.
And then she gets a smaller 24 gauge cannula that we use for cannulation, and she actually threads the small needle into the big needle, um, under ultrasound guidance to really help, um, get that really fired motion that you need often when you're getting for the much smaller vessels.
And then what you can do is you can then have a look and see in long access to see if you've actually cannulated the, the big needle with the very small needle, and you're work- you're working with very small diameters there.
Um, and we found that was a really good tip in terms of visualizing your needle tip, but also cannulating a very small structure as well.
Do you, in neonates, um, do you use relatively longer, or in kids, relatively longer cannulas than your standard cannulas?
Um, and for the small babies, that is long enough usually to get a decent amount of catheter length into the vessels.
In, um, in children, if the, uh, veins are, if the cephalic vein, which is cannulated 90% of the time, is deeper than half a centimeter, we use a 45 mil 22 gauge.
Um, otherwise, if it's more superficial, we just use a t- um, the normal 25 mil length, uh, 22 gauge.
The aim of, as, as you all know, is to get two-thirds of the catheter, um, into the vein so that, that it doesn't fall out and you have parallel flow, um, of anything that you're injecting that might be venotoxic.
And, and where we are, the standard normal cannula for a vein that's palpable is 32 millimeters long.
Um, and then recently, uh, a neonatologist from Mater, um, gave me a little tip because a, a problem we find in the babies is trying to mimic the very small structures that we're often trying to calculate, uh, ca- to cannulate, especially in the, the preterm babies.
Um, and what she does is, I, I don't know if you can, um, imagine it, is she puts a large bore cannula, so like a pink cannula, in at an angle into the chicken or whatever medium you're doing.
And then she gets a smaller 24 gauge cannula that we use for cannulation, and she actually threads the small needle into the big needle, um, under ultrasound guidance to really help, um, get that really fired motion that you need often when you're getting for the much smaller vessels.
And then what you can do is you can then have a look and see in long access to see if you've actually cannulated the, the big needle with the very small needle, and you're work- you're working with very small diameters there.
Um, and we found that was a really good tip in terms of visualizing your needle tip, but also cannulating a very small structure as well.
Do you, in neonates, um, do you use relatively longer, or in kids, relatively longer cannulas than your standard cannulas?
Um, and for the small babies, that is long enough usually to get a decent amount of catheter length into the vessels.
In, um, in children, if the, uh, veins are, if the cephalic vein, which is cannulated 90% of the time, is deeper than half a centimeter, we use a 45 mil 22 gauge.
Um, otherwise, if it's more superficial, we just use a t- um, the normal 25 mil length, uh, 22 gauge.
The aim of, as, as you all know, is to get two-thirds of the catheter, um, into the vein so that, that it doesn't fall out and you have parallel flow, um, of anything that you're injecting that might be venotoxic.
And, and where we are, the standard normal cannula for a vein that's palpable is 32 millimeters long.
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