ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,778,658, issued on Nov. 3, was assigned to Medtronic CryoCath LP (Toronto).
"Spray nozzle design for a catheter" was invented by Jean-Pierre Lalonde (Candiac, Canada), Wlodzimierz V. Sadzynski (Chateauguay, Canada) and Nicolas Coulombe (Anjou, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A catheter-based medical device including controlled refrigerant dispersion is disclosed. The device includes a fluid injection tube that carries refrigerant from a coolant supply to the distal portion of the device. A fluid dispersion unit is disposed on the distal end of the fluid tube to control the angle of distribution for refrigerant that is expelled from ...