ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,492,693, issued on Dec. 9, was assigned to Q BIOTECH CORP. (Rio Rancho, N.M.).

"Self calibrating peristaltic pump with reduced fluid pulses" was invented by Sergey Aleksandrovich Dryga (Rio Rancho, N.M.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A linear peristaltic pump can include an anvil, a first piston and a second piston. The anvil supports a flexible conduit having a first cavity and a second cavity. The first piston pumps a fluid through the first cavity by repeatedly moving through a first sequence that includes a first cavity filling phase and a first cavity emptying phase. The second piston pumps the fluid through the second cavity by repe...