Patella preparation system

A patella preparation system comprising:

• a fixing device adapted to hold a patella;
• a guiding device linked to the fixing device and moveable relative to the fixing device by translatory and tilting movements/motions;
• and
• an operation device for manually moving the guiding device relative to the fixing device individually and separately in a translatory and a tilting manner, wherein the patella preparation system further has a clamping device which is used to ease positioning and/or fixation of the guiding device at the patella which is connected to a quadriceps via a quadriceps tendon and with a tibia via a patella tendon, the clamping device being configured such as to be transitioned between a clamping position in which the clamping device encompasses each of the quadriceps tendon and the patella tendon and a released position in which the clamping device is neither fixed to the quadriceps tendon nor to the patella tendon.

A patella preparation system comprising:

• a fixing device being adapted to hold a patella,
• a guiding device which is linked to the fixing device to be moveable relative thereto by translatory and tilting movements/motions, and
• an operation device for manually moving the guiding device relative to the fixing device individually and separately in a translatory and a tilting manner, wherein the guiding device is adapted to guide a cutting instrument used to perform a resection on the patella, the fixing device comprises an upper fixing portion configured to contact the front surface of the patella and a lower fixing portion configured to contact the lower surface of the patella, the upper and the lower fixing portion being each connected to a central connecting portion, while the guiding device is movable in a direction parallel to the length axis of the connecting portion and is inclinable relatively to the upper and lower fixing portions, wherein the operation device comprises:
• a cutting height adjustment device which is configured to position the guiding device in a height with respect to the patella such that the cutting instrument can perform the resection on the patella with a preferred cutting height, and
• a cutting angle adjustment device for adjusting the angle of the guiding device with respect to at least the upper fixing portion of the fixing device and hence to the patella separately to the cutting height adjustment device such that the cutting instrument can perform the resection on the patella in a preferred angle.