Abstract: A medical instrument serves for cutting off tissue and cartilage from a body. It comprises an outer shaft having at least a first window in a distal end area thereof. A hollow inner shaft is received within the outer shaft and can be rotated about a longitudinal axis of the outer shaft. The hollow inner shaft has at least one opening cooperating with the at least one window of the outer shaft in a cutting action when turning the inner hollow shaft. A further window is provided in the distal end area of the outer shaft which further window is surrounded by a curette having a separating edge. Tissue and cartilage separated by the curette can be cut into small pieces by the cutting edges of the rotatable inner shaft and then be sucked in through an opening of the inner hollow shaft.

Abstract: A device for punching out tissue areas from bone has a blade whose circumferential cutting edge corresponds to the contour of a tissue area that is to be punched out. The blade is composed of a plurality of blade segments that are each movable in an axial direction counter to the force of a spring.

Abstract: A medical instrument serves for cutting off tissue and cartilage from a body. It comprises an outer shaft having at least a first window in a distal end area thereof. A hollow inner shaft is received within the outer shaft and can be rotated about a longitudinal axis of the outer shaft. The hollow inner shaft has at least one opening cooperating with the at least one window of the outer shaft in a cutting action when turning the inner hollow shaft. A further window is provided in the distal end area of the outer shaft which further window is surrounded by a curette having a separating edge. Tissue and cartilage separated by the curette can be cut into small pieces by the cutting edges of the rotatable inner shaft and then be sucked in through an opening of the inner hollow shaft.

Abstract: An apparatus for use in the regeneration of structured human tissue has a pair of opposed surfaces comprising a bio material or a synthetic polymer material. Each surface carries an active bio layer which can interact with stem cells from bone marrow. The opposed surfaces can be moved from an open position where they are spaced apart to a closed position in which they are closer together to form a multi-layer or sandwich construction.

Abstract: A device for punching out tissue areas from bone has a blade whose circumferential cutting edge corresponds to the contour of a tissue area that is to be punched out. The blade is composed of a plurality of blade segments that are each movable in an axial direction counter to the force of a spring.

Abstract: A medical instrument for performing microfracturing in a bone comprises a body, a plurality of points project in the distal direction.

Abstract: A medical instrument for autologous chondrocyte transplantation comprises a stamp for introducing an implantable nonwoven into a cartilage. This stamp has, on a distal end face, at least one opening to which an underpressure can be applied.

Abstract: An apparatus for use in the regeneration of structured human tissue has a pair of opposed surfaces comprising a bio material or a synthetic polymer material. Each surface carries an active bio layer which can interact with stem cells from bone marrow. The opposed surfaces can be moved from an open position where they are spaced apart to a closed position in which they are closer together to form a multi-layer or sandwich construction.