US Patent Issued to Becton Dickinson and Co. on June 17 for "Multiple telescoping screw-driven pump mechanism with anti-rotation of innermost screw keyed to reservoir plunger in fluid delivery device" (Massachusetts Inventors)

ALEXANDRIA, Va., June 19 -- United States Patent no. 12,329,927, issued on June 17, was assigned to Becton Dickinson and Co. (Franklin Lakes, N.J.).

"Multiple telescoping screw-driven pump mechanism with anti-rotation of innermost screw keyed to reservoir plunger in fluid delivery device" was invented by Mark Wood (Sterling, Mass.), Dana Cote (Boxford, Mass.) and Alessandro Pizzochero (Chelmsford, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A fluid delivery device has a syringe barrel-type reservoir with plunger and plunger driver assembly comprising nested, telescopic screws comprising an innermost screw keyed to a first side of the plunger or intermediate pusher to prevent rotation. In a fully ret...