Concentric Medical Announces Commercial Launch of Trevo(TM) in Europe

MOUNTAIN VIEW, California, October 8, 2010 - Concentric Medical, Inc. today announced the full European launch of
Trevo(TM), the first device utilizing Stentriever(TM) technology for clot
retrieval in ischemic stroke patients.

Trevo is the newest offering in a portfolio of products from Concentric
Medical, the company that first introduced retrievers for acute ischemic
stroke. The Trevo's stent-like design leverages the company's long history of
developing clot retrieval technologies for stroke. Backed by years of
research, Trevo is the first and only retriever of its type designed for
quick access, rapid clot integration and predictable clot retrieval in
ischemic stroke patients.

Prior to launch, the Trevo was evaluated in a limited number of centers
across Europe. Professor Olav Jansen, Head of Interventional Neuroradiology
at Universitatsklinikum Schleswig-Holstein in Kiel, Germany commented from
the neuroRAD congress in Cologne, "I have performed some fast and successful
cases with the new Trevo. This is a powerful and easy-to-use
revascularization device. I now have a safe weapon for treating stroke."

Maria Sainz, President and CEO of Concentric Medical, also commented,
"The introduction of the Trevo System in Europe is all about offering
physicians a faster, more confident means of removing a clot in acute stroke
cases. We have always believed that retrieving the clot has the potential to
offer patients a better outcome. The data in our previous clot retrieval
trials, MERCI and Multi MERCI, have provided sound evidence of the benefits
of retrieving clot for stroke patients. The Trevo is offered as a complete
system for use with Concentric's microcatheter, balloon guide catheter and
DAC(TM) catheter making the stroke retrieval procedure easier and more
predictable."

About Concentric Medical

Concentric Medical is located in Mountain View, California and is the
global leader in the development of endovascular devices for revascularizing
stroke patients. The company manufactures and markets solutions for ischemic
stroke: minimally invasive devices that are delivered into the brain to
restore blood flow by removing blood clots that cause ischemic stroke.
Concentric Medical's devices are available in over 500 leading stroke centers
around the world, and have been the subject of several clinical studies with
total enrollment of over 1,300 patients. For more information about
Concentric Medical, please visit www.concentric-medical.com.

About the Trevo System

The Trevo System is an innovative, high-performing, easy-to-use thrombus
retrieval system. The main component of the Trevo System introduces
Stentriever(TM) technology, and creates a new generation of retrieval device
to remove clot in acute ischemic stroke. Concentric Medical is the pioneer in
developing devices for ischemic stroke intervention. Since 2002, Concentric
Medical's devices have been used in thousands of stroke patients worldwide.
This experience has been incorporated into the design of the Trevo System to
make thrombus removal an easier, faster and more predictable procedure. The
new Trevo System combined with the Merci(R) portfolio of retrievers and
DAC(TM) catheters further strengthens Concentric Medical's position as the
global leader in acute ischemic stroke intervention.

About Acute Ischemic Stroke

Stroke is the third leading cause of death in the developed world and the
leading cause of serious long-term disability. Ischemic stroke represents
over 85% of strokes and occurs when a blockage or clot develops in one of the
arteries supplying blood to the brain. CE mark for the Merci Retriever was
first obtained in 2002. In 2004 the FDA cleared Concentric Medical's Merci
Retriever(R) for use in patients who are ineligible for IV-tPA or who fail
to respond to IV-tPA therapy. This pioneering device creates a departure from
the historic method of caring for stroke patients and offers physicians and
patients a long-awaited option for stroke intervention.

    Media Contact:
    +1-650-938-2100
    strokeinfo@concentric-medical.com

Concentric Medical, Inc. +1-650-938-2100, strokeinfo at concentric-medical.com