The invention relates to a device for separating tissue parts (32), wherein the device (1) has two parallel clamping plates (3a, 3b), wherein at least one part (3c) of one clamping plate (3b) can be pivoted away from the other clamping plate (3a) in order to receive a tissue part (32) and can be pivoted back in order to fix the tissue part (32), wherein the device (1) has at least two interconnected blades (15a, 15b) arranged at an angle to each other or has one curved or kinked blade, wherein the blade or blades (15a, 15b) are insertable and movable in guide rails (11) of the clamping plates (3a, 3b), and wherein a cutting edge (16) of the blade or blades (15a, 15b) extends between the clamping plates (3a, 3b).
