A device for performing an incision in a region of interest of a patient, the device comprising: a housing having an elongate slot at one end thereof; a blade; an integral plate comprising: a blade holder for holding the blade; a biasing means in communication with the blade holder to enact an inward force on the blade holder so as to bias the blade towards a retracted position; and a triggering means configured to activate the blade to move from a previously retained pre-operating position to an operating position where the blade contacts the region of interest of the patient thereby performing an incision and to a post operating position; and a guide means configured to guide a path of the blade as it moves in an operating position, said blade adapted to engage said guide means when in the operating position, so that a path of the blade in an operating position is guided, a guide protrusion of the blade holder being configured to engage with the guide means in the operating position; wherein, in the operating position, the blade extends through said elongated slot to make the incision and, in the pre- and post-operating positions, the blade does not extend through said elongated slot; wherein the blade, the biasing means and the triggering means are integral to one another and are pivotally connected to and configured to rotate about a point formed on an underside of the housing when the triggering means is depressed. a housing having an elongate slot at one end thereof; a blade; an integral plate comprising: a blade holder for holding the blade; a biasing means in communication with the blade holder to enact an inward force on the blade holder so as to bias the blade towards a retracted position; and a triggering means configured to activate the blade to move from a previously retained pre-operating position to an operating position where the blade contacts the region of interest of the patient thereby performing an incision and to a post operating position; and a guide means configured to guide a path of the blade as it moves in an operating position, said blade adapted to engage said guide means when in the operating position, so that a path of the blade in an operating position is guided, a guide protrusion of the blade holder being configured to engage with the guide means in the operating position; wherein, in the operating position, the blade extends through said elongated slot to make the incision and, in the pre- and post-operating positions, the blade does not extend through said elongated slot; wherein the blade, the biasing means and the triggering means are integral to one another and are pivotally connected to and configured to rotate about a point formed on an underside of the housing when the triggering means is depressed. a blade holder for holding the blade; a biasing means in communication with the blade holder to enact an inward force on the blade holder so as to bias the blade towards a retracted position; and a triggering means configured to activate the blade to move from a previously retained pre-operating position to an operating position where the blade contacts the region of interest of the patient thereby performing an incision and to a post operating position; and a guide means configured to guide a path of the blade as it moves in an operating position, said blade adapted to engage said guide means when in the operating position, so that a path of the blade in an operating position is guided, a guide protrusion of the blade holder being configured to engage with the guide means in the operating position; wherein, in the operating position, the blade extends through said elongated slot to make the incision and, in the pre- and post-operating positions, the blade does not extend through said elongated slot; wherein the blade, the biasing means and the triggering means are integral to one another and are pivotally connected to and configured to rotate about a point formed on an underside of the housing when the triggering means is depressed.