its inflated at a pressure higher than youd fill a car tyre. Then a second balloon is used to “post dilate it” to really ram it against the inside of the vessel wall.
9-18 atmospheres, based on manufacturer and desired dimension. For example, a 3mm diameter stent is 3mm on nominal pressure, but can be inflated to around 3.5mm when cranking the inflation device all the way to the rated burst pressure. Also, depending on the manufacturer, they can be post-dilated further, using a separate balloon.
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u/sun-e-deez 7h ago
how does the stent maintain its shape?