ALEXANDRIA, Va., July 15 -- United States Patent no. 12,661,108, issued on June 23, was assigned to UNIVERSITAT ZURICH (Zurich, Switzerland).

"Device for closing a tissue opening" was invented by Kurt Ruffieux (Thalwil, Switzerland), Yannick Devaud (Zurich, Switzerland), Mathias Blaser (Zurich, Switzerland), Sebastian Wollmann (Nussbaumen, Switzerland), Marko Rusov (Belgrade, Serbia), Nicole Ochsenbein-Kolble (Zurich, Switzerland) and Martin Ehrbar (Wil, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a device to be used for closing a tissue opening in a tissue. In particular, the present invention relates to a device used for a closing an opening in a membrane such as a f...