ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,440,617, issued on Oct. 14, was assigned to INSULET Corp. (Acton, Mass.).

"Linear activated drug dosing pump system" was invented by David Nazzaro (Groveland, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A novel embodiment of a pump system, for example, of the type that would be used in a wearable drug delivery system, comprises dual linear-actuated plungers disposed in a pump chamber. The plungers are coupled to a leadscrew having both left-hand right-hand threads such that rotation of leadscrew in a first direction moves the plungers together and rotation of leadscrew in a second, opposite direction moves the plungers apart. Movement of the pl...