Device for severing and removing tissue parts

A device for severing and removing tissue parts (20) from a body of a living being, comprising:

• a fixed guide rail (1, 30) and a slide rail (6, 31), wherein the slide rail is movable along the fixed guide rail, and the fixed guide rail (1, 30) and the slide rail (6, 31) form, in the distal region, a cutting or punching mouth (17, 32) for severing the tissue parts (20),
• wherein the cutting or punching mouth (17, 32) is defined by spaced cutting edges (14, 16) which are angled relative to each other such that a distance between the spaced cutting edges (14, 16) decreases distally, and wherein a conduit (18) for supplying a liquid is defined near the cutting or punching mouth (17), wherein the fixed guide rail (1, 30) has a first cutting edge (16) of the spaced cutting edges that protrudes upwardly at the distal end of the fixed guide rail, and
• wherein during movement of the slide rail along the fixed guide rail, the distal end of the slide rail defining a second cutting edge (14) of the cutting edges is guided over the first cutting edge (16) of the fixed guide rail, wherein the spaced cutting edges interact like scissors, wherein both of the spaced cutting edges (14, 16) are inclined from vertical, and wherein the second cutting edge (14) of the spaced cutting edges is inclined more from the vertical than the first cutting edge (16).