Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Types of coil materials and coverings. ( a ) Bare platinum coil. ( b ) Fibered helical coil with nylon covering. ( c ) Terumo Azur hydrogel-coated coil preexpansion. ( d ) Hydrogel coil after exposure to blood and expansion of hydrogel covering (∼20 minutes after deployment). (Images used with permissions from Terumo Interventional Systems.)
