The present invention relates to a device for performing an incision in a region of interest of a patient, said device including a blade portion for providing the incision, said blade attached to a biasing means to enact a vertical force on said blade so that the blade is biased in a retracted position, a triggering means for activating the blade to move from a previously retained pre-operating position, to an operating position where the blade contacts a region of interest of the patient thereby performing an incision, and to a post operating position, a guide means to guide a path of the blade as it moves in an operating position said blade portion adapted to engage said guide means when in an operating position, so that a path of the blade in an operating position is guided, the device further including a housing to house said device, said housing having an elongate slot at one end, where in an operating position, the blade extends therethrough said slot, and in a pre and post operating position, the blade does not extend therethrough said slot, wherein the blade, biasing means and the triggering means are integral to one another, forming a plate.
