arteriotomy

n. opening of an artery (Medicine)

Arteriotomy is a medical term for an opening or cut of an artery wall. Also called arterotomy. Used mainly in . Either a transverse or a longitudinal incision can be made.
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Ar·te·ri·ot·o·my n. Incision into the lumen of an artery. arteriotomy incision of an artery. pulmonary arteriotomy a surgical approach used in the [more]Arteriotomy - Community and Resources

(n.)
The opening of an artery, esp. for bloodletting.
  

(n.)
That part of anatomy which treats of the dissection of the arteries.
  

noun
puncture made in the wall of an artery