AtriCure, Inc. is an atrial fibrillation (Afib) solutions company. The Company develops, manufactures, and sells devices designed primarily for the surgical ablation of cardiac tissue and systems designed for the exclusion of the left atrial appendage. It has various product lines for the ablation of cardiac tissue, including its Isolator Synergy Ablation System, for the treatment of persistent and longstanding persistent forms of Afib in patients undergoing certain open concomitant procedures. It has two primary product lines for cardiac tissue ablation, which include Radio Frequency Ablation Devices and cryoICE Cryoablation System, and a product line for left atrial appendage exclusion. The Company also sells Lumitip dissectors and the Estech line of reusable cardiac surgery (valve) instruments. Its cryoICE cryosurgery product line offers various cryoablation devices. Its AtriClip Left Atrial Appendage Exclusion System is designed to occlude the heart's left atrial appendage (LAA).