Ok but what is the purpose of this technique? Why not just place the needle normally? As a professional in the field, I'm genuinely curious. I've taken blood from patients a million times and even though this could be very accurate with practice, I'm confused about why it is better than just placing the needle because there will always be some risk of missing.
The speed at which the force of the needle is being applied, at the time of breaking the tension of the skin and vein, could very well impact/mitigate the subsequent movement of the blood vessel.
I’m not sure why suggesting that the physics involved may be helpful for rolling veins, is apparently so ludicrous.
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u/PositiveStress8888 Jun 10 '25
Check out this video from this search, flying needle technique https://g.co/kgs/Qa2GMMQ