ALEXANDRIA, Va., June 6 -- United States Patent no. 12,279,770, issued on April 22, was assigned to REVMEDICA INC. (Middletown, Conn.).

"Power pack for activating surgical instruments and providing user feedback" was invented by Thomas G. Wenchell Jr. (Durham, Conn.), C. Robert Satti III (Westbrook, Conn.) and Dawson Hettrick (Branford, Conn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A power pack removably loadable into a compartment of an instrument. The power pack has a first motor and a first engagement member removably engageable with a firing mechanism to effect firing of fasteners and a second motor and second engagement member removably engageable with an articulation mechanism when the power pac...