Metal clip device
Dr. Welker's answer displays a picture of one type of aneurysm
clip, which is commonly utilized in the brain.
a aneurysm clip is a small piece of metal that is applied to a blood vessel to close it off / seal it off in order to prevent it from receiving further blood flow. When the metal clip is applied to the vessel, it permanently occludes the blood flow. This keeps aneurysm from bleeding.