Nevro Corp. has raised $22 million in a first round of funding. The Palo Alto, Calif. company is conducting clinical trials for its neuromodulation therapy for chronic pain. New investor Accuitive Medical Ventures joined return investors Aberdare Ventures, Bay City Capital, Mayo Clinic, MPM Capital and Three Arch Partners. Nevro raised a $5.5 million seed round in 2006.

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