Concentric receives regulatory clearance

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Medical device manufacturer Concentric Medical reported it has obtained U.S. regulatory clearance for its Merci L6 Retriever, which restores blood flow to ischemic stroke patients and incorporates a 2.7-mm cylindrical helix with attached filaments.

The Mountain View, Calif.-based company said the filaments provide an additional mechanism for securing the clot during retrieval and the new design is targeted at larger vessels than the existing Merci Retrievers on the market.