ALEXANDRIA, Va., June 17 -- United States Patent no. 12,311,159, issued on May 27, was assigned to Ahmet Elibol (Istanbul).

"Vacuum assisted sutureless inflow cannula and ring implantation of ventricular assist devices" was invented by Ahmet Elibol (Istanbul) and Hamdi Yigit Elibol (Istanbul).

According to the abstract* released by the U.S. Patent & Trademark Office: "A ventricular assist device includes a fixation ring set and an inflow cannula designed in a suitable manner to left ventricle diameters and average heart dimensions for an adult woman and an adult man, wherein a surgical suture is not used in the ventricular assist device to provide an implantation facilitation and controlling of bleeding sites."

The patent was filed on De...