Neuros Medical has raised $2.39 million of venture funding from undisclosed investors, making its total capital raised more than $41 million, according to PitchBook.

The Cleveland-based company is developing technology to treat chronic pain through neurostimulation. Its patented platform technology, High Frequency Nerve Block, is focused on the treatment of chronic post-amputation pain, known. as Phantom Limb Pain and Residual Limb Pain.

In 2017, Neuros Medical closed a $20 million Series AA venture capital round led by U.S. Venture Partners and was joined by Boston Scientific, Aperture Venture Partners, Osage University Partners and Cleveland's JumpStart, Inc.

Later that month the company hired Tom Wilder as its new chief executive. Wilder has more than 30 years of experience, including Sequent Medical, a neurovascular company that developed the WEB Aneurysm Embolization System.