Device for preparing tissue discs, in particular cartilaginous discs

1. A device for preparing tissue discs, having a clamping device for securing a tissue block by clamping and having at least one cutting device for treating the tissue block held in the clamping device, said clamping device comprising one rigid clamping jaw mounted on a base body and one rotatable clamping jaw that can rotate with respect to the rigid clamping jaw, wherein the rigid clamping jaw is configured as a double-walled plate and the rotatable jaw member being positioned in an intermediate space formed by the double-walled plate, and wherein the cutting device includes a swivel arm that is mounted on the plate of the rigid clamping jaw so as to be displaceable with respect to the clamping device and said cutting device being equipped with at least one cutting edge and wherein the swivel arm, at least in the area of the at least one cutting edge, comprises two arm parts running parallel to one another, each equipped with a cutting edge, which arm parts are mounted on the plate of the rigid clamping jaw in such a way that the plate is positioned between the two arm parts and between the cutting edges of the two arm parts.

2. The device according to claim 1 , wherein, with the clamping device in closed position, a clamping gap remains between the at least two clamping jaws ridge clamping jaw and the rotatable clamping jaw of the clamping device.

3. The device according to claim 2 , wherein the height of the clamping gap is adjustable.

4. The device according to claim 1 , wherein the double-walled plate of the rigid clamping jaw comprises an opening for inserting the tissue block and the clamping jaw that can rotate with respect to the rigid clamping jaw is mounted so that the rotatable clamping jaw can move between the two side walls of the double-walled plate that are at a distance from one another.

5. The device according to claim 4 , wherein the rotatable clamping jaw is mounted with one side in the plate of the rigid clamping jaw.

6. The device according to claim 3 , wherein the height of the clamping gap can be adjusted by displacing the mounting point of the rotatable clamping jaw in the plate.

7. The device according to claim 1 , wherein fixing elements formed as teeth are configured at least on the surfaces of the at least two clamping jaws rigid clamping jaw and the rotatable clamping jaw that face one another.

8. The device according to claim 1 , wherein the swivel arm is mounted so that the swivel arm can rotate on the plate of the rigid clamping jaw.