An ink cartridge has a pair of sideplates which connect a first portion of the housing to a second portion. The assembly is formed by spirally winding a negative plate, a positive plate and a separator. The dissecting ring is shaped in such way that when an eye surgeon twists the barrel to which the ring is attached, the ring moves through the interlamellar space in the stroma producing the desired channel or pathway. At least one shifter is mounted at the recess structure.