SIGMA Health Care (Sigma B.D. Ltd) is an Israeli boutique company, active since 2006, that represents international medical-device makers in Israel and specializes in implantable neurostimulation technologies. Its portfolio includes VNS vagus-nerve stimulation for drug-resistant epilepsy and depression, the StimRouter system for chronic peripheral pain, CCM therapy for heart failure and the Emfit seizure monitor, with clinical, technical and patient support.