“But cutting into someone is surgery.”
There is no cutting. The stent is usually inserted by catheter through the groin area, up the artery to the heart.””’
The definately is an INCISION in the groin area-—they certainly are NOT going in thru the rectum & bowel or thru the bladder & kidney!!!
They have to get to a main artery which passes thru the groin area.
I don’t get where you don’t think this is surgery.
It is called a surgery because the function was performed by a surgeon instead of a mechanic.