Baxano, a startup in stealth mode that’s developing a spinal medical device, has raised $20 million in a second round of funding, according to VentureWire. The round was led by new backer Kearny Venture Partners, with participation from existing investors Prospect Venture Partners and Three Arch Partners.

Mountain View, Calif.-based Baxano raised an $8.6 million first round in Deember 2006. Chief executive Jeffrey Bleich says his company’s device will be less invasive and more effective than existing devices for restoring spine function.