Ra Medical Systems, Inc., a commercial-stage medical device company, develops, manufactures, and markets excimer lasers for use in the treatment of vascular and dermatological immune-mediated inflammatory diseases. The company offers DABRA (destruction of arteriosclerotic blockages by laser radiation ablation), a minimally-invasive excimer laser and single-use catheter system that is used by physicians in the endovascular treatment of vascular blockages resulting from lower extremity vascular disease. It also provides Pharos, an excimer laser device that emits highly concentrated ultraviolet light and is used as a tool in the treatment of dermatological skin disorders. The company sells its products primarily through its direct sales force in the United States. Ra Medical Systems, Inc. was incorporated in 2002 and is headquartered in Carlsbad, California.