ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,208,219, issued on Jan. 28, was assigned to Boston Scientific Scimed Inc. (Maple Grove, Minn.).

"Tissue retraction device and delivery system" was invented by John Unger (Wrentham, Mass.), Christopher K. Oto (Boston), Danny Shu-Huan Lee (Cambridge, Mass.), Ryan Wales (Northborough, Mass.), Alexander Joseph Burnham (Southbury, Conn.) and Tracy Andreotti (Milford, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Medical devices and methods of using medical devices are disclosed. An example tissue retraction device includes a first tissue engagement member coupled to an elastic member by a coupling assembly. The coupling assembly including a first coup...