ALEXANDRIA, Va., March 19 -- United States Patent no. 12,251,543, issued on March 18, was assigned to Becton Dickinson and Co. (Franklin Lakes, N.J.).
"Variable length injection syringe" was invented by John Knight (Lincoln, Neb.), Jeffrey Reed (Minden, Neb.), Scott Townsend (Holdrege, Neb.) and Patrick McCallum (Franklin Lakes, N.J.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A syringe assembly includes a syringe barrel (12) having a proximal end and a distal end, a needle hub (20) supporting the needle and coupled to the distal end of the syringe barrel (12). A moveable shield (36) is included for sliding from a first position where the needle is exposed a first length, a second position where the needl...