Injection device (100) for the injection of a substance into an organism (1), comprising: - a guiding means (10) with a light (11), in which an injection tool is movably arranged ( 21), - a displacement means (20), with which the injection tool (21) is attached, and - a clamping means (30), which forms a support for the guiding means (10) and for the means of displacement (20), the guiding and displacement means (10, 20) being arranged in the clamping means (30) in a relatively movable manner relative to each other and in relation to the clamping means (30), in which - the clamping means (30) has a first clamping means (34) for fixing the guiding means (10) in relation to the clamping means, so that the movement of the guiding means (10) can be blocked in in relation to the clamping means (30), - the guiding means (10) and the displacement means (20) are arranged rotating around a longitudinal axis of the clamping means, and - a rotating bearing (40) is provided which is fixedly equipped with a clamping bolt (42) for fixed positioning in relation to the organism that is going to be treated and, in which, the clamping means (30) with the guiding means (10) and the displacement means (20) can rotate about the longitudinal axis of the clamping means (30), in which - figure a retention projection (43) in the rotating bearing (40), which interacts with recesses (37.1) on the surface of the support piece (37), - the rotating bearing (40) has a pin (41), which interacts with a perforated crown (23) of the displacement means (20) and with which a rotation of the clamping means (30) is blocked in an advanced state of the displacement means (20), and - the clamping means (30 ) that sits on the rotating bearing with a support piece (37) cannot move in re Lotion with the organism.Dispositivo de inyección (100) para la inyección de una sustancia en un organismo (1), que comprende: - un medio de guiado (10) con una luz (11), en la cual está dispuesta de manera desplazable una her
