Veran Medical Technologies said it brought in $2.9 million in a funding round it hopes will eventually add $5 million to its coffers.

The St. Louis-based medical device company, founded in 2005, is developing devices for diagnosis & minimally invasive surgery.

The $2.9 million is short of the company’s $5 million goal. The 16 unnamed investors were offered debt, options, or warrants, for their investment, according to the regulatory filing

Veran, which makes the SPiNDrive 2.0 3D airway mapping system, added former Stryker CFO Curt Hartman as a director last November. The SPiNDrive device uses electromagnetic navigation to that allow physicians to biopsy solitary pulmonary nodules for the potential early diagnosis of lung cancer, according to its website.