Concentric Medical Announces Regulatory Clearance of Newest Neurovascular Retriever for Use in Stroke Patients

MOUNTAIN VIEW, Calif., Aug. 29 /PRNewswire/ -- Concentric Medical announces that it has obtained regulatory clearance for its Merci(R) L6 Retriever in the United States. This new Retriever joins the four other Merci Retrievers on the market, and provides customers with another choice in their efforts to restore blood flow to ischemic stroke patients.

The Merci L6 Retriever joins the L family of retrievers, incorporating a 2.7 mm cylindrical helix with attached filaments. The filaments provide an additional mechanism for securing the clot during retrieval. This new design is targeted at larger vessels than the existing Merci Retrievers on the market, and is available for shipment to qualified accounts immediately.

The Merci Retriever is a shaped wire constructed of nitinol, a “memory wire,” which allows delivery of the Retriever in linear form using standard catheterization techniques. A small puncture in the groin is used to introduce the Merci Retriever into an artery leading to the brain. Upon reaching the targeted area, the Retriever returns to its original shape when deployed. The Merci Retriever is designed to restore blood flow by engaging, capturing and removing blood clots. The Merci Retrieval Systems offer additional options for ischemic stroke patients, especially those who have failed intravenous clot dissolving drug therapy or who could not be treated within the three hour limit established for intravenous drug administration.

About Concentric Medical

Concentric Medical is located in Mountain View, California, and was founded in August 1999. The company manufacturers and markets the Merci Retrieval Systems, which are available in over 225 centers in North America. Concentric Medical estimates that over 6,000 patients have been treated with its devices. Concentric and Merci are registered trademarks of Concentric Medical.

Media Contact: Andrew Gordon

650-810-1701

agordon@concentric-medical.com

Concentric Medical

CONTACT: Andrew Gordon of Concentric Medical, +1-650-810-1701,agordon@concentric-medical.com

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