ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,502,203, issued on Dec. 23, was assigned to XPAN Inc. (Vaughan, Canada).
"Radially expandable cannula systems and methods for use" was invented by Zaid Atto (Nobleton, Canada), Seray Cicek (York, Canada), Chevis Dilbert (Toronto), Catherine Mackenzie Campbell (Memphis, Tenn.) and Aman Ladak (Thornhill, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A radially expandable trocar, port or cannula system is provided for use in minimally invasive surgeries. The cannula creates a port access with an initial small internal diameter. The passage of the cannula devices is defined by a plurality of elongate rigid members. A number of mechanisms are provide...