The artery is then propped open with a metal mesh tube called a stent.

FORBES: Magazine Article

In some ways the Tube was far more open to private enterprise than it is today.

ECONOMIST: The Tube goes commercial

The heart plug is implanted through a transcatheter tube inserted through the groin, a minimally invasive procedure compared with open-heart surgery.

WSJ: Doctors Debate Whether Strokes Be Prevented With a Heart-Plug Procedure

The title refers to a small girl (Nikol Leidman) with an extraordinarily intense and open face who emerges from the sea outside Tel Aviv in bikini bottoms and a flotation tube.

NEWYORKER: Jellyfish

Many problems that once required sawing through the breastbone and opening up the chest for open heart surgery now can be treated with a nip, twist or patch through a tube.

NPR: Heart Repair Breakthroughs Replace Surgeon's Knife