Merit Medical Systems Inc. announced that it has acquired substantially all of the assets of Vascular Insights LLC, based in Quincy, Mass. Vascular Insights’ primary assets are the ClariVein IC and ClariVein OC specialty infusion and occlusion catheter systems,  which have been utilized in more than 120,000 cases to treat superficial venous disease, particularly below the knee (BTK), and venous leg ulcers (VLU). The ClariVein systems address a $700 million global market. The ClariVein IC system has 510(k) clearance from the U.S. Food and Drug Administration (FDA), the ClariVein OC system is CE-marked, and the systems are covered by 43 patents issued worldwide.