ALEXANDRIA, Va., June 9 -- United States Patent no. 12,285,334, issued on April 29, was assigned to EDWARDS LIFESCIENCES Corp. (Irvine, Calif.).

"Methods for treating a deficient native mitral valve" was invented by Stanton J. Rowe (Newport Coast, Calif.), Francesco Maisano (Zurich) and Oded Meiri (Ram-On, Israel).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method treating a deficient native mitral valve includes advancing the distal end portion of a delivery catheter into a heart, wherein the delivery catheter contains a support band stretched into a linear form, wherein the support band comprises a shape-memory material, and then ejecting the support band from the distal end portion of the delivery cat...