Vertos Medical Adds $15.5 Million

Vertos Medical Inc., an Aliso Viejo, Calif.-based developer of minimally-invasive devices for lumbar spine decompression, has raised $15.5 million in Series D funding. Onset Ventures led the round, and was joined by return backers CHL Medical Partners, Foundation Medical Partners, Aweida Venture Partners and DFJ Mercury. The company previously raised around $17 million.

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