ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,453,564, issued on Oct. 28, was assigned to Imperative Care Inc. (Campbell, Calif.).
"Hemostasis valve" was invented by Michael Buck (Menlo Park, Calif.), Julia Fox (San Carlos, Calif.) and James Jacobs (Danville, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hemostasis valve may be used with a catheter such as an aspiration catheter. The hemostasis valve comprises a support, and at least a first lever, pivotably carried with respect to the support. A collapsible tubular sidewall defining a valve lumen is carried by the support. A filament is formed into a loop around the tubular sidewall, the filament having at least a first tail portion exte...