ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,490,997, issued on Dec. 9, was assigned to Cardiovascular Systems Inc. (St. Paul, Minn.).
"Systems, methods and devices for progressively softening multi-compositional intravascular tissue" was invented by Victor L. Schoenle (Greenfield, Minn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Various embodiments of the systems, methods and devices are provided comprising angioplasty to break up calcification or other tissue in occlusive areas within a blood vessel. The various embodiments disclosed comprise pressure pulse periods designed to break up calcified occlusive material through a cyclically stretching of the vessel walls without damaging the vessel...