ALEXANDRIA, Va., May 26 -- United States Patent no. 12,636,002, issued on May 26.
"Surgical retractor" was invented by Daniel Holloway (Rocky View County, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A surgical retractor has proximal and distal ends and an intermediate portion. The proximal and distal ends each have an inflatable annular ring. The intermediation portion has flexible sheath that is attached it its opposite ends to a respective annular ring. An access opening extends through the rings and the sheath along a longitudinal axis extending through the distal and proximal ends. The first and second inflatable annular rings are configured to expand radially from the longitudinal axis without...