ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,478,728, issued on Nov. 25, was assigned to CAREFUSION 303 INC. (San Diego).
"Peristaltic pump with constant biasing force" was invented by Lun Zhang (Brea, Calif.), Frank Cai (Ontario, Calif.), Derek Alan Carroll (Carson, Calif.) and Siddarth Shevgoor (Mission Viejo, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Peristaltic pumps are described herein. In certain embodiments, a peristaltic pump includes a plunger, a first biasing member, and a second biasing member. The plunger is movable to selectively engage a pumping volume of a tubing segment to expand the pumping volume to draw fluid flow into the pumping volume and to contract the pumping ...