NxThera Inc. raised $2 million from the sale of equity and warrants, according to documents filed with the Securities & Exchange Commission.
The St. Paul, Minn.-based startup is developing treatments for enlarged prostate using vapor injections and thermal energy to kill tissue.
Since December 2009, NxThera has raised $4 million from the sale of equity to investors including Arboretum Ventures, Aberdare Ventures and GDN Holdings, an investment firm run by former Medtronic vice chairman Dr. Glen Nelson.
NxThera CEO Robert Paulson formerly led Restore Medical Inc., a company based in Roseville, Minn., that focused on treating sleep apnea. Medtronic Inc. (NYSE:MDT) purchased Restore in 2008 for nearly $30 million.