ALEXANDRIA, Va., Feb. 19 -- United States Patent no. 12,226,594, issued on Feb. 18, was assigned to Roivios Ltd. (Nassau, Bahamas).

"Percutaneous urinary catheter" was invented by John R. Erbey II (Milton, Ga.), Bryan J. Tucker (Chapel Hill, N.C.) and Jacob L. Upperco (Atlanta).

According to the abstract* released by the U.S. Patent & Trademark Office: "A percutaneous urinary catheter is provided, including a proximal portion, a distal portion configured to be deployed in a kidney and/or renal pelvis of the urinary tract, and at least one lumen extending at least partially through the proximal portion of the percutaneous urinary catheter; and a negative pressure source in fluid communication with the at least one lumen, the negative press...