US Patent 10004475 Echogenic surfaces with pressed-dimple formations

Disclosed are embodiments of methods and devices for providing enhanced echogenicity to medical devices. The method includes rolling an impression roller having a plurality of protrusions and an outer surface against a medical device. The protrusions create depressions in the surface of the medical device. A guide roller forms a ridge of the depression into the depression to create a lobe. The lobe forms a pocket between a bottom surface of the depression and the lobe.