Brain stents:

WINGSPAN STENT TO OPEN  
BLOCKED ARTERIES IN THE BRAIN
Wingspan is made by Boston Scientific.

Carotid artery stenting is a procedure
in which your vascular surgeon inserts
a slender, metal-mesh tube, called a
stent, which expands inside your
carotid artery to increase blood flow in
areas blocked by plaque.
The “Wingspan” stent  was the first
FDA-approved brain stent.
The Wingspan stent is intended to
open blocked arteries in the brain after
clot-dissolving drugs have failed.  It is
used in patients who have more than
50 percent blockages in a brain artery,
and have had a stroke, minor stroke or
transient ischemic attack, despite
being on blood-thinning medications.
The stents that are used around the
heart are generally stiffer and harder
to navigate around the brain vessels.
Heart stents are very difficult to move
up the brain anatomy and place into
the distal arteries of the head. The
Wingspan stent is much softer and is
carried on softer catheters that can
navigate the brain anatomy better.

OTHER DEVELOPMENTS
Carotid stent Protege rx by Ev3;

Enterprise nitinol stent by Cordis;