ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,539,403, issued on Feb. 3, was assigned to Merit Medical Systems Inc. (South Jordan, Utah).

"Subcutaneous vascular assemblies for improving blood flow and related devices and methods" was invented by John Hall (North Salt Lake, Utah), Lucia Irazabal (Holladay, Utah) and Westin Raines (Eagle Mountain, Utah).

According to the abstract* released by the U.S. Patent & Trademark Office: "Reinforcing sleeves for medical device lumens are disclosed. In some embodiments reinforcing sleeves may provide resistance to crushing, kinking, or other deformation of the lumen. Reinforcing sleeves within the scope of this disclosure may be displacable along an outer diameter of a reinforced lumen. Some ...