ALEXANDRIA, Va., April 7 -- United States Patent no. 12,594,400, issued on April 7, was assigned to MEDTRONIC INC. (Minneapolis).
"Delivery system with a torqueable catheter shaft" was invented by Alan McGuinn (Oranmore, Ireland) and Niall Duffy (Ballybrit, Ireland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A catheter shaft includes a proximal portion with a first polymer having a first stiffness and a first portion of a tubular braid component extending within the first polymer, an intermediate portion with a second polymer having a second stiffness and a second portion of the tubular braid component extending within the second polymer, and a distal portion with a third polymer having a third stiffness,...