The medical service device and technology firm iRhythm Technologies that develops diagnostic monitoring solutions has recently announced the completion of a Series D venture financing round. The company was able to raise US $16 million from Norwest Venture Partners as well as New Leaf Ventures, Kaiser Permanente Ventures and Synergy Life Science Partners.

In a statement by Kelvin King, President and CEO of iRhythm, "We are pleased to have NVP as our lead investor in this important growth phase of the company. Since the introduction of the Zio System in early 2011, we have reported on over 20 million hours of patient data. Recent peer review data has demonstrated that the Zio Patch System is helping physicians to make more informed patient treatment decisions over the gold standard method of Holter Monitoring. NVP's interest in partnering with companies focused on products that address an unmet clinical need aligns with iRhythm's own mission."