Penumbra’s RED® Reperfusion Catheters are now commercially available in Europe. The catheters are part of the company’s Penumbra System®, which is a fully integrated mechanical aspiration ...

Earth's Umbra and Penumbra Diagram for Partial Lunar Eclipse of June 4, 2012. F. Espenak, NASA GSFC ...

ALAMEDA, Calif.--(BUSINESS WIRE)--Penumbra, Inc. (NYSE: PEN), a global healthcare company focused on innovative therapies, today announced U.S. commercial availability of the Penumbra System’s ...

Diagram showing the umbra and penumbral shadows from the side. In a total lunar eclipse, the moon passes through the umbra; in a penumbral eclipse, through the outer shadow. Credit: NASA ...