ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,533,461, issued on Jan. 27, was assigned to INSULET Corp. (Acton, Mass.).

"Pump mechanism with double reservoir and stationary fluid ports" was invented by Soroush Kamrava (Everett, Mass.), Kyle Breingan (Lowell, Mass.), Maureen McCaffrey (Arlington, Mass.) and Jeffrey Barnes (Medford, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein is a double reservoir configuration for a pumping mechanism for a drug delivery device wherein one reservoir is rigidly fixed to a housing of the device and the other reservoir moves linearly translates with respect to the fixed reservoir. To avoid having either the input fluid port or the output fluid ...