ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,426,803, issued on Sept. 30, was assigned to Gyrus ACMI Inc. (Westborough, Mass.).

"Endoluminal sizing device" was invented by Timothy J. Johnson (Kent, Wash.), Brandon James Shuman (Kirkland, Wash.) and David H. Dillard (Grapeview, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments of a sizing device that can be used to measure the size of airways lumens, such as those connected to lungs. The sizing device can have different expandable elements in order to accurately and consistently measure the particular dimensions of a lumen. In some embodiments, markings viewable by a user can be used to determine the particular size."

The patent wa...