By LAURAN NEERGAARD WASHINGTON -- It's a tiny vacuum cleaner for the brain: A new treatment for stroke victims promises to suction out clogged arteries in hopes of stopping the brain attack before it does permanent harm.

It's a tiny vacuum cleaner for the brain: A new treatment for stroke victims promises to suction out clogged arteries in hopes of stopping the brain attack before it does permanent harm.

It's a tiny vacuum cleaner for the brain: A new treatment for stroke victims promises to suction out clogged arteries in hopes of stopping the brain attack before it does permanent harm.

Penumbra, Inc. today announced completion of a 125 patient Penumbra Stroke Trial evaluating the Penumbra System™ in the revascularization of patients with acute ischemic stroke secondary to intracranial large vessel occlusive disease.