ALEXANDRIA, Va., June 5 -- United States Patent no. 12,274,557, issued on April 15, was assigned to MINERVA SURGICAL INC. (Santa Clara, Calif.).

"Methods and systems for evaluating the integrity of a uterine cavity" was invented by Akos Toth (Cupertino, Calif.), Robin Bek (Campbell, Calif.) and Dominique Filloux (Redwood City, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods, systems and devices for evaluating the integrity of a uterine cavity. A method comprises introducing transcervically a probe into a patient's uterine cavity, providing a flow of a fluid (e.g., CO2) through the probe into the uterine cavity and monitoring the rate of the flow to characterize the uterine cavity as perforated ...