BioSig Technologies is a development-stage medical device company. The company is developing a technology platform to manage noise and artifacts from cardiac recordings during electrophysiology studies and ablation. It is engaged in developing the Precise Uninterrupted Real-time evaluation of Electrograms (PURE) electro-pneumatic (EP) System, a surface electrocardiogram and intracardiac multichannel recording and analysis system that acquires, processes and displays electrocardiogram and electrograms required during electrophysiology studies and ablation procedures. It was founded in 2009 and is headquartered in Westport, Connecticut.