Small tube-like devices placed in the body to help keep passageways open.
Stents are helpful because they keep things open and flowing in the body.
Examples:
The doctor put a stent in his heart to help him breathe better.
She needed a stent to help her walk better.
The stent keeps the blood flowing in his body.
The stent is like a tiny straw in his body.
The stent is like a little tunnel for his blood.
The stent is a small helper in his body.